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Home My WebLink About004-95 Winchester Regional Airport - Backfile (3)rj * STAFF SITE PLAN CHECKLIST * This application is not complete if the following are not included: 1. One set of comment sheets from the following agencies along with any marked copies of the plan; 6K- 513 /9�Z VDOT City of Winchester �OK- Z/15 195 ✓ Sanitation Authority Town of Stephens City OK- 1 /13 M6 Inspections Dept. Town of Middletown -OK- 024b- /Fire Marshal Health Dept. —c4< (o12,1/95• County Engineer Parks & Recreation Airport Authority Soil & Water Conservation Dist. i 41One copy of the Site Plan application. �'( 3. Five copies of the Site Plan. Date 4. One reproducible copy of the Site Plan (if required). 5. One 35mm. slide of the Site Plan (if required). TRACKING Application received. All necessary agency comments received. Fee Paid (amount S Site Plan to Planning Commission via bi-monthly. Site Plan heard by Planning Commission (if required). Revisions received (if required). Date of approval. Info added to Eette. d t3u s e- RECEIPT ti? U24397 AMOUNT DUE a��- AMOUNT PAID BALANCE DUE S. PAlb BY CASH CHECK OTHER FREDERICK COUNTY DEPT. OF PLANNING AND DEVELOPMENT P. 0. BOX 601, 9 NORTH LOUDON ST. WINCHESTER, VIRGINIA 22601 DATE RECEIVED FROM1 ADDRESS THE SUM OF _7L-eLLAR5 FOR By _ COUNTY of FREDERICK Department of Planning and Development 703i665-5651 FAX 703/678-0682 July 5, 1995 Mr. Granville Amos, Executive Director Winchester Regional Airport 491 Airport Road Winchester, Virginia 22602 RE: Winchester Regional Airport Corporate Hanger and Office Site Plan Approval Dear Mr. Amos: The Frederick County Planning Department administratively approved Site Plan #004-95 of the Winchester Regional Airport on June 30, 1995. The approved site plan calls for the construction of a corporate hanger structure that is 14,125 square feet and will provide 5,625 square feet of office space, the creation of an asphalt parking lot that will contain curb and gutter, 39 regular parking spaces, four disabled parking spaces with appropriate ramps and signage, outdoor lighting fixtures, striped fire lane access with appropriate signage, and pedestrian walkways to provide access to the facility, the installation of two fire hydrants, the construction of a storm water management facility, and all appropriate erosion and sedimentation control measures. Our department has provided you with two copies of the approved site plan. This will allow you to provide the contractor with an approved copy on -site, and maintain a copy for your files. Please advise the contractor to obtain a land disturbance permit from the Frederick County Department of Public Works prior to any land disturbance activity, and to contact this office to schedule on -site inspections to ensure that required site work improvements are complete. Site work inspections are required prior to the issuance of Certificate of Occupancy Permits. Please contact me if I may answer any questions regarding this letter. Sincerely, Ll� Evan A. Wyatt,` lanner II EA W enclosure cc: W. Harrington Smith, Jr., Shawnee District Supervisor Joe C. Wilder, Frederick County Engineering Technician T. Roy Jennings, Frederick County Real Estate John C. Longnaker, P.E., Delta Airport Consultants, Inc. 107 North Kent Street P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604 COUNTY OF FREDERICK, VIF&IA • DEPARTMENT OF INSPECTIONS Caller Time Called 10 t00 &4 Date Called S J A4, Phone No. (04as- %5Z Time Requested A6&P Date Requested A -,AP Received By EVArj A. bJ YAK Date of Inspection 5 h."t /a(. PERMIT HOLDER NAME 11E6-Ip►JArt_ A;g.enc — RT. NO. iQ 5 Lot No. SEC. No. SUBDIVISION _ STREET NAME - A) 2Po00' ROhb DIRECTIONS RA2.,iT Q6Yp, Pi K_ TO BUILDING NO. 0�4-Z-9ti A ► e-pex T' '-QA-n PLUMBING NO. W0/TIED JUST" E7fiST" nr- _ ELECTRICAL NO. Trttt. M A N -TIEDZ w1 a W /tom MECHANICAL NO. SIGN NO. DISTRICT ► N PERMIT FOR: /) r-t C4- Type of Inspection Residential Footers Setbacks: FR Slab Draintile Water Service Sewer Rough Electric Rough Plumbing Rough Mechanical Groundworks Gas Piping/Test Other: Time In: % QSQP Temperature Time Out: Weather Results: Approved - Comments: `(L -� uh,%� Commercial BK L R Gas Fire -up Final Electrical Framing Final Mechanical Final Site Plan Final Building Fire Marshall Final Plumbing Special/Complaint _ Rejected Cut in No. Signature ._ Date _TZ9 19 b COUNTY OF FREDERICK, VIRRIA DEPARTMENT OF INSPECTIONS Caller JOF,,4 Gt4(,JAKEr_� Time Called Phone No. 1804i L_7 5 - 8301 Time Requested Received By Lao A . \ls ).A-tr' --_ - 0 Date Called I11 A Date Requested I 7 IF Date of Inspection I ( -1 1i [� PERMIT HOLDER NAME 0 A� A,Kpor,-T- _ At:--wuseaiY RT. NO. 61-S Lot No. SEC. No. SUBDIVISION STREET NAME DIRECTIONS i PtT' RoyR-L Pi Kt �'D BUILDING NO. O+Z I QPo►LT ��kn S i - PLUMBING NO. Ln A'l L� J U S i eT O P' ELECTRICAL NO. T t,c- Mgt tii T'EV. M IMIct. _ MECHANICAL NO. SIGN NO. DISTRICT _ - PERMIT FOR: 4JIN ►+i ce' �t�lOn+:4 _ 1�''►+Fa.�►� �__'' _ ?"_ t?A 6+_7� % nFFi Type of Inspection Residential Commercial Footers - Setbacks: FR BK -_ L — R Slab Draintile Gas Fire -up Final Electrical Water Service Framing Final Mechanical Sewer Rough Electric Final _ Site Plan Rough Plumbing Rough Mechanical Final Building Fire Marshall - Groundworks _ Gas Piping/Test Final Plumbing - Special/Complaint Other. Time In: )7 '}� Temperature Y, Cut in No. Time Out: �- �5oM Weather Results: Approved Foe, -ri-VAP- C-• 0 Rejected Comments: j tVDJ .• Signature Date r iJ i SITE PLAN APPLICATION Complete the following application: DATE November 28, 1994 APPLICATION # ZVC CP W U a a U Wtuji Td Ix o. 1. Development Airport Corporate Hangar 2. Location of Property: 491 Airport Road (by street name) Winchester, Virginia 22602 3. Property Owner: Winchester Regional Airport Authority Address: 491 Airport Road Winchester, Virginia 22602 Telephone: (703) 662-5786 4. Applicant/Agent: Winchester Regional Airport Authority Address: 491 Airport Road Winchester, Virginia 22602 Granville Amos, Executive Director Telephone: (703) 662-5786 5. Designer: Delta Airport Consultants, Inc. Address: 7333 Whitepine Road Richmond, Virginia 23237 Telephone: (804) 275-8301 r-AX Z 7 9 - b-3 Contact: Michael D. Kane, P. E. J'; t 1 C- Lop,3GQA VeV , P. E. 6. Is this an original or revised Site Plan? Original X Revised -5- • • 7. Total area of parcel to be developed: 8. Property Information: a) Property ID #: b) Current Zoning: c) Present Use: d) Proposed Use: e) Adjoining Property Zoning: f) Adjoining Property Use: g) Magisterial District: 64-A- 4 Acres RA Undeveloped Airport Property Airport Corporate Hangars RA Undeveloped Industrial Park Shawnee I have read the material included in this package and understand what is required by the Frederick County Planning Department. I also understand that all required material will be complete prior to the submission of site p an. Signature: �--►�_ Date: l d 12 OEADA M AIRPORT CONSULTANTS, INC. engineers - planners Richmond Charlotte June 28, 1995 Mr. Evan Wyatt Frederick County Planning Dept. 9 Court Square Winchester, Virginia 22601 RE: Site Plan Submittal Corporate Hangar Winchester Regional Airport Winchester, Virginia Non-AIP Delta Project No. VA 9439 Dear Mr. Wyatt: Thank you for your phone call informing me that all appropriate agencies have approved the referenced project. As requested, please find enclosed five (5) sets of plans which incorporate the agency's comments. I want to personally thank you for your assistance during the process. You made what can be a difficult process, easy by taking a direct involved approach. I look forward to working with you on the next project at the Airport. Should you have any questions, please contact this office. Sincerely, / John C. Longnaker; P.E. JCL: kgp Enclosure cc: Granville Amos, Executive Director wo/encl. Anthony Cox, VDOA ,�� c wo/encl. John Johnson, Resident Project Representative �� wo/encl. r t. J cgs VA 9439 C057 '-2 " ' E' `� c 7333 Whitepine Road Richmond, VA 23237 A'�'��t e' fcphone (804) 275-8301 Fax (804)275-8371 DELT� i AIRPORT CONSULTANTS, INC. engineers - planners �2V Richmond _Charlotte May 22, 1995 Mr. Frederick Franklin I„ President L. F. Franklin & Sons, Inc. Route 11 Northam ✓ l �O Stephenson, VA 22656`��.rl'ijl,4�� RE: VDOT Right -Of -Way Permit Corporate Hangar Site Preparation Winchester Regional Airport Winchester, Virginia Non-AIP Delta Project No. VA 9439 Dear Mr. Franklin: Attached is a copy of a letter from Mr. Robert Childress, accepting the referenced sight plans for access permit application. As indicated on the plans, this permit is the responsibility of the contractor. As of this date, the items that are still required prior to giving notice -to -proceed are: ► Site Disturbance Permit (awaiting final County approval, anticipated within the next week) ► State Grant approval - Grant application has been submitted. ► Fire Marshall approval - based on discussions with the County, a disturbance permit will be issued without the Fire Marshall's approval, however, the final occupancy permit will not be issued until approval. Should you have any questions, please so not hesitate to contact me. Sincerely, ein. Longn er, P.E. JCL: kgp Enclosure cc: Granville Amos, Executive Director w/encl. Evan Wyatt, Frederick County Planning Dept. w/encl. VA 9439 C054 7333 Whitepine Road Telephone (804) 275-8301 Richmond, VA 23237 Fax (804) 275-8371 0 0 DAVID R. GEHR COMMISSIONER r LGu NJA Y 5 lyy5 COMMONWEALTH[ of 'VIRGINIA DEPARTMENT OF TRANSPORTATION 14031 OLD VALLEY PIKE P.O. BOX 278 EDINBURG,22824.0278 May 3, 1995 Mr. John C. Longnaker, P.E. C/O Delta Airport Consultants, Inc. 733 Whitepine Road Richmond, VA 23237 Dear Mr. Longnaker: WILLIAM H. BUSHMAN, P.E. RESIDENT ENGINEER TELE(703)984.5600 FAX (703) 984-5607 Ref: Winchester Regional Airport Delta Job Number VA9439 Route 645 Frederick County This is to acknowledge receipt of your revised site plan dated April 17, 1995 for the referenced project. It appears all of our previous review comments have been addressed. Therefore, the plan is approved with the understanding all work within the Route 645 right- of-way will be completed in accordance with these plans and VDOT's current Road & Bridge Standards and Specifications. The appropriate land use permits may now be applied for to cover work within the Route 645 right-of-way. Said permits are issued by this office and will require a processing fee and surety bond coverage. Permits of this nature may take approximately thirty days to process and issue once satisfactory application has been made. Therefore, I would suggest application be made as soon as practicable. If you have any questions concerning the above, please let me know. RBC/rf xc: Mr. J. B. Diamond Mr. S. A. Melnikoff Mr. R. W. Watkins Sincerely, William H. Bushman Trans. Resident Engineer 6 � �' e - �'-41 Y-� By: Robert B. Childress Trans. Permits & Subdivision Specialist Supervisor TRANSPORTATION FOR THE 21 ST CENTURY OELAA \\ AIRPORT CONSULTANTS, ` \ , engineers - planners n INC. Richmond Charlotte February 10, 1995 ' Mr. Evan Wyatt Frederick County Planning Dept. 9 Court Square Winchester, Virginia 22601 RE: Site Plan Comments Corporate Hangar Site Preparation Winchester Regional Airport Winchester, Virginia Non-AIP Delta Project No. VA 9439 Dear Mr. Wyatt: For your review and use please find enclosed a copy of the site plan comments received to date for the above referenced project. Requests for site plan comments were sent to the following: 1. Director of Engineering - No Response 2. Building Official - No Response 3. VDOT - Response Per Telephone Conversation 4. Frederick County Sanitation Authority - Comments Attached 5. Fire Marshall - Comments Attached If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerely, ael D. Kane, P. E. MDK: kgp Enclosure cc: Granville Amos, Executive Director wo/encl. VA 9439 C036 7333 Whitepine Road Telephone (804) 275-8301 Richmond, VA 23237 Fax (804) 275-8371 OELOA • AIRPORT CONSULTANTS, INC. engineers - planners December 7, 1994 Mr. Granville Amos Executive Director Winchester Regional Airport 491 Airport Road Winchester, Virginia 22602 RE: Site Plan Application Corporate Hangar Site Development Winchester Regional Airport Winchester, Virginia Delta Project No. VA 9439 Dear Mr. Amos: Charlotte For your review and use please find enclosed a site plan application to be submitted to the Frederick County Planning Department. Please contact Mr. Evan Wyatt regarding any fees associated with this site plan application. The site plan application should be executed and forwarded to the Frederick County Planning Department at your earliest convenience. If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerely, Michael D. Kane, P. E. MDK: kgp Enclosure cc: Evan Wyatt, Frederick County Planning Dept. w/encl. VA 9439 C018 7333 Whitepine Road Telephone (804) 275-8301 Richmond, VA 23237 Fax (804) 275-8371 0 • OEL TA c� AIMPOMT CONSULTANTS, INC, engineers - planners Richmond Charlotte November 23, 1994 CN� Mr. Evan Wyatt ikv \:-Frederick County Planning Dept. 9 Court Square Winchester, Virginia 22601 RE: Corporate Hangar Site Plan Winchester Regional Airport Winchester, Virginia Delta Project No. VA 9439 Dear Mr. Wyatt: Delta has forwarded preliminary plans for your review to determine which sheets will be required for the twenty-five (25) copies required. The twenty-five (25) copies and presentation slide will be forwarded to your office no later than December 1, 1994. In addition, the airport will complete the site plan application and send the request for site plan comments to the appropriate agencies. If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerely, Michael D. Kane, P. E. MDK: kgp VA 9439 C016 7333 Whitepine Road Telephone (804) 275-8301 Richmond. VA. 23237 Fax (804) 275-8371 Richmond Novem OEL TA A /R;7OR T CONSULTANTS, engineers - planners 23, 1994 Mr. Granville Amos Executive Director Winchester Regional Airport 491 Airport Road Winchester, Virginia 22602 Dear Mr. Amos: lic .`L �, REc �s4 rn DfpT 0" 1 RE: Review Plans Corporate Hangar Site Development Winchester Regional Airport Winchester, Virginia Delta Project No. VA 9439 For your review and comments please find enclosed a preliminary set of site plans for the corporate hangar site development. The review plans will be coordinated with the Frederick County Planning Department via their site plan approval process. As such a meeting has been scheduled with the Planning Commission (December 7, 1994) and with the County Board of Supervisors (December 14, 1994). During the review process our office will coordinate with L. F. Franklin to obtain a price for completing the work noted on the enclosed site plan. This work will be incorporated into the current contract with L. F. Franklin as a supplemental agreement. Final project plans will be forwarded under separate cover upon completion of the review and site plan approval process. If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerel Michael D. e, P. E. MDK: kgp Enclosures cc: Evan Wyatt, Frederick County Planning Dept. w/encl. Steve McNeely, VDOA w/encl. Joe Delia, FAA/WADO w/encl. Ken Bonner, Bonner Metropolitan Architectural Group w/encl. VA 9439 C015 7333 Whitcpine Road Tcicphone (804) 275-8301 Richmond, VA. 23237 Fax (804) 275-8371 DEL& • AIRPORT CONSULTANTS, INC. engineers - planners Richmond Charlotte November 21, 1994 Mr. Evan Wyatt Frederick County Planning Dept. 9 Court Square Winchester, Virginia 22601 RE: Site Plan Documentation Relocate Parallel Taxiway A Winchester Regional Airport Winchester, Virginia AIP Project No. 3-51-0059-10/11 Delta Project No. VA 9302 & VA 9439 Dear Mr. Wyatt: As per our recent telephone conversation please find enclosed the following items which should complete the site plan approval process. 1. As per site plan comments from the following: a. Frederick County Inspections Department b. Commonwealth of Virginia, Department of Transportation C. Federal Aviation Administration d. City of Winchester e. Frederick Winchester Health Department f. County of Frederick Fire Marshall g. Lord Fairfax Soil and Water Conservation District 2. Please find enclosed sheets 1, 3A, 3 and 9 through 22 for the project plans. In a related matter Delta is requesting an opportunity to address the Planning Commission (December 7, 1994) and the Board of Supervisors (December 14, 1994) for the new airport hangar site referenced in your November 21, 1994 letter. Copies of the proposed site plan will be forwarded under a separate cover prior to the scheduled meetings. 7333 Whitepine Road Richmond, VA 23237 Telephone (804) 275-8301 Fax (804)275-8371 Mr. Evan Wyatt November 21, 1994 Page Two If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerely, Michael D. Kane, P. E. MDK: kgp Enclosures cc: Granville Amos, Executive Director wo/encl. VA 9302 C 191 DgLa Airport Consultants 7333 Whitepine Road Richmond, Virginia 23237 TRANSMITTAL Phone: (804) 275-8301 FAX: (804) 275-8371 TO: Evan Wyatt PROJ. NO. VA 9439 DATE: 11 28 94 REF: WE TRANSMIT: [x] HEREWITH ( ] UNDER SEPARATE COVER 262 (A r,��l ��i4 +) (U.S. MAIL, i, BUS, MESSENGER) NO. COPIES 25 of each sheet DESCRIPTION Sheets 2 3 and 4 Winchester Regional Airport VA 9439 [ ] For your information & file [ ] No exceptions taken [ ] For your review and comments [ ] Make corrections as noted [ ] For your use [ ] Revise and resubmit [ ] For approval [ ] Rejected, resubmit [ x] As requested by you [ ] Corrected drawings for file required Remarks: CC to: By: Michael D. Kane P.E. COUNTY of FREDERICK Department of Planning and Development 703/665-5651 FAX TRANSMITTAL PAGE FAX 703/678-0682 DATE: June 21, 1995 TRANSMITTAL TIME: PLEASE DELIVER PAGE(S) IMMEDIATELY TO: NAME: John C. Longnaker, P.E. COMPANY: Delta Airport Consutants, Inc. CITY, STATE: Richmond, Virginia FAX NUMBER: 804_275_8371 RE: Winchester Regional Airport Site Plan TOTAL NUNTBER OF PAGES INCLUDING THIS COVER PAGE: MESSAGE: John: This is a copy of the County Engineer's comments. Although he has given preliminary approval, he needs you to address comment number 2 ASAP. The Fire Marshal has not completed his review of your revisions. I will work with him, as his review is the final piece to the puzzle. I will call you soon to advise you of what I will need. FROM: Evan A. Wyatt TITLE: Planner II FREDERICK COUNTY PLANNING DEPARTIIENT PHONE: (703) 665-5651 FAX NUMBER: (703) 678-0682 107 North Kent Street P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604 0 0 I COUNTY of FREDERICK Department of Planning and Development 703/665-5651 FAX TRANSMITTAL PAGE FAX 703/678-0682 DATE: 4/26/95 TRANSMITTAL TIME: PLEASE DELIVER PAGE(S) IlWYIEDIATELY TO: NAME: __IOHN_ C - LONGNAKER , P.E. COMPANY: DELTA AIRPORT CONSULTANTS, INC. CITY, STATE: RICHMOND, VIRGINIA FAX NUMBER: 804-275-8371 RE: WINCHESTER REGIONAL AIRPORT SITE TOTAL NUMBER OF PAGES INCLUDING THIS COVER PAGE: 3 MESSAGE: FROM: EVAN A. WYATT TITLE: PLANNER II FREDERICK COUNTY PLANNING DEPARTMENT PHONE: (703) 665-5651 FAX NUMBER: (703) 678-0682 107 North Kent Street P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604 Y• . C `G O L COUNTY of FREDERICK w Department of Planning and Development 703/665-5651 i»a FAX 703/678-0682 April 26, 1995 Delta Airport Consultants, Inc. Attn: John C. Longnaker, P.E. 7333 Whitepine Road Richmond, Virginia 23237 RE: Winchester Regional Airport Site Development Plan Dear Mr. Longnaker: The purpose of this letter is to advise you of the current status of the above referenced plan. As you know, Frederick County requires a site plan to be reviewed and approved for all new developments prior to the issuance of a building permit. Mr. Michael Kane, formerly of your firm, completed the majority of the site plan requirements; however, there are still some outstanding issues that need to be resolved to finalize this process. Frederick County created a site plan file for this project on December 19, 1994. Since that time, our department received the site plan review fee on February 9, 1995, a status letter from your firm dated February 10, 1995, and one copy of the site plan for review. I conducted my review of the site plan on February 10, 1995 and provided your firm with my comments that same day. Your firm provided me with five copies of the site plan that addressed the majority of those comments on February 27, 1995. Since that submittal, I had not received anything else from your firm. Last week, I contacted you to discuss the outstanding issues associated with the site plan. During that conversation, you indicated that Delta Airport Consultants, Inc. was in the process of redesigning the site plan to remove some of the parking spaces and to insure that the parking lot was no closer than 5 feet from the property line. We also discussed the potential for allowing construction to commence prior to the receipt of final site plan approval from the Virginia Department of Transportation (VDOT). VDOT has agreed to this concept, provided that no work is conducted on their right-of-way unless the standard permits are acquired from their office, and that it is understood that the Winchester Regional Airport is proceeding at their own risk in the event that future VDOT comments require redesign of this project. VDOT has also asked Frederick County to not issue an occupancy permit for this facility until their concerns are addressed. Frederick County will honor that request. I took the liberty of contacting all review agencies to determine the status of this site plan. At this time, the Frederick County Sanitation Authority and the Frederick County Building Official have approved the site plan. The Fire Marshal has not completed a review of the revised t07 North Kent Street P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604 0 Page -2- Longnaker Letter April 26, 1995 drawings that reflect his comments. The County Engineer never received site plan drawings for comment. I provided that County Engineer with two copies of the site plans that I received on February 27, 1995 and completed a request for site plan review comments. I have advised the County Engineer that site plan redesign may be occurring and that you will contact him to inform him if lie should review the plans received February 27, 1995. You may contact either Mr. Ed Strawsnyder or Mr. Joe Wilder to discuss this issue at (703) 665-5643. If new site plans are being designed for this project, you will need to insure that all review agencies receive the changes and do not have any concerns with them. I believe that it would be prudent to plan for both hangers at this time and indicate them as being constructed in two phases. This will require you to determine the required parking for build -out and will require you to design for these facilities at this time; however, it will allow the Winchester Regional Airport to obtain building permits for each hanger without having to resubmit a revised site plan in the future. Hopefully, this information will allow you to determine the most efficient method to resolve the outstanding issues associated with this project. Please contact me if you have any questions regarding this letter or if I may be of further assistance. Sincerely, Evan A. Wyatt Planner II cc: Granville Amos, Winchester Regional Airport Manager Ken Bonner, Bonner Metropolitan Architectural Group Robert B. Childress, VDOT H.E. Strawsnyder, County Engineer • • COUNTY of FREDERICK Department of Planning and Development 703/665-5651 FAX TRANSMITTAL PAGE FAX 703/678-0682 DATE: FEBRUARY 10, 1995 TRANSMITTAL TIME: PLEASE DELIVER PAGE(S) IMMEDIATELY TO: NAME: MICHAEL D. KANE, P.E. COMPANY: DELTA AIRPORT CONSULTANTS, INC. CITY, STATE: RICHMOND, VIRGINIA FAX NUMBER: (804) 275-8371 RE: WINCHESTER REGIONAL AIRPORT CORPORATE HANGER TOTAL NUMBER OF PAGES INCLUDING THIS COVER PAGE: -4- MESSAGE: MIRE: THE ORIGINAL INFORMATION WILL BE MAILED TODAY. PLEASE CONTACT ME IF YOU HAVE ANY QUESTIONS. HAVE A GOOD WEEKEND! FROM: EVAN A. WYATT TITLE: PLANNER II FREDERICK COUNTY PLANNING DEPARTMENT PHONE: (703) 665-5651 FAX NUMBER: (703) 678-0682 107 North Kent Street P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604 COUNTY of FREDERICK Department of Planning and Development 703/665-5651 FAX 703/678-0682 February 10, 1995 Delta Airport Consultants, Inc. Attn: Mr. Michael D. Kane, P.E. 7333 Whitepine Road Richmond, Virginia 23237 RE: Preliminary Review of Winchester Regional Airport Corporate Hanger Site Plan Dear Mike: I have had an opportunity to review the above referenced plan. Please revise your plan to reflect the following comments: 1) Please provide your Registered Professional Engineer's Certificate with the appropriate signature. (Sheet 1 of 13) 2) Please provide the Use and Zoning of the property on the south side of Airport Road (Lantz Construction Company Office, zoned M-1). (Sheet 3 of 13) 3) Please provide the parcel information for the Winchester Regional Airport (WRA) that we discussed during our telephone conversation of February 9. 1995. 4) Please include a note under the Site Development Summary that states the total acreage for the WRA. I believe this number is 93.34 acres. (Sheet 4 of 13) 5) Please revise the building restriction line distance for the side property lines to read 50 feet. (Sheet 4 of 13) 6) Please provide the height for the proposed corporate hanger/office building. (Sheet 4 of 13) 7) Please provide the location and dimension for any proposed sign that will be used for the new facility. 8) Please provide the location, description, and details for any proposed outdoor lighting fixtures, outdoor storage areas, or outdoor trash receptacles. 9) Are easements necessary for the water and sewer extensions into the new facility? 10) The parking space calculations need to be revised to indicate that 23 spaces are required for the office use, and 20 spaces for the hanger based on the owners estimate. The total of 43 parking spaces requires two disabled spaces. (Sheet 4 of 13) 11) The dimensions for the parking spaces and aisle widths needs to be revised. The proposed 90 degree parking requires a minimum aisle width of 22 feet, and the parking spaces need to be 180 square feet. (Sheet 11 of 13) 107 North Kent Street P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604 Page -2- Kane Letter February 10, 1995 12) The dimension of the disabled parking spaces is adequate; however, the design does not conform to the ADA requirements. This can be accomplished by providing a striped access aisle as indicated on the enclosed information. Please ensure that appropriate ramping and signage (4 to 7 feet in height) is provided as well. (Sheet 1 1 of 13) 13) The relocation of the entrance to this facility may present a parking lot setback problem. The Frederick County Zoning Ordinance requires all parking lots to be a minimum of 5 feet from all property lines and road right-of-ways. Mr. Robert B. Childress, of the VDOT, contacted me this morning to discuss this. Your revised design appears to encroach onto the Airport Road right-of-way. Please ensure that your final design meets the parking lot setback requirement. Please provide me with copies of all review agency comments, and five copies of the final site plan that adequately address all review agency comments. Once I have received this information, I will recommend final approval of this site plan. Please contact me if I may answer any questions regarding this letter. Sincerely, +V--- &)311. Evan A. Wyatt Planner II EA W enclosure cc: Robert B. Childress, VDOT swam a-ow..�.,..i....w--i AA4.5.3 Carpet. Much more needs to be done in developing both quantitative and qualitative criteria for carpeting (Le., problems associated with texture and weave need to be studied). However, certain functional characteristics are well established. When both carpet and padding are used, it is desirable to have mtnl- mum movement (preferably none) between the floor and the pad and the pad and the carpet which would allow the carpet to hump or warp. In heavily trafficked areas, a thick. soft (plush) pad or cushion, particularly in combination with long carpet pile, crakes it difficult for individuals in wheelchairs and those with other ambulatory disabdiucs to get about. Firm carpeting can be achieved through proper selection and combination of pad and carpet, sometimes with the elirninaUon of the pad or cushion, and with proper installation. CarpeUng designed with a weave that causes a zig-zap effect when wheeled across is strongly dLscouraged A4.6 Parking and Passenger Loading Zones. A4.6.3 Parading Spaces. The increasing use of vans with side -mounted LIfts or ramps by persons with disabilities has necessitated some revisions in spec(Jla tons for parking spaces and acUacent access aisles. The typical acces- sible parking space (s 96 in (2440 mm) wide with an adjacent 60 in (1525 MmJ access aisle. However, this aisle does not permit LVU or ramps to be deployed and still Leave room for a person using a wheelchatr or other mobQUy aid to exit the lift platform or ramp. In tests conducted with actual lift/van/wheeichatr eornbtnations, (under a Board -sponsored Accessible Parking and 1.oadtrV Zones PrIect) researchers found that a space and aisle total- ing almost 204 to (5180 mrW wide uxis needed to deploy a 10 and exit �. The 'van accessible" park*V spade requtred by these guidelines provides a 96 in (2440 mrrJ wide space with a 96 h (2440 mmtl adjacent access aisle which UJust wide enough to maneuver and exitfrom a side mounted lift. if a 96 in (2440 mm) access aisle is placed between two spaces. two 'van accessible' spaces are created. Alternatively, (f'the wide access aisle is provided at the end of a row (an area often uruLsed). U may be possible to provide the wide access aisle without additkaxil space (see Fig. A5(dt1). 0 A sign is needed to alert Ivan users to the pres- ence of the wider aisle. but the space is not bnterided to be restricted only to vans. 'Universal" Plarktng Space Design. An alterna- tive to the provision of a percentage of spaces with a wide aisle, and the associated need to inctude additional stgrk4w, is the use of what has been called the `universal' parking space design. (finder tits design. iU accessible spaces are 132 hi (3350 mrN wile with a 60 in (1525 mrN access aisle (see Fig. A5(b)). One to acce"ble routs M w 8 8�nolzn 0 0� I 96 ndn 6 rwn 96 flan 96 mIn 340. 16n 24" 24" 252 min 14" (a) Van Accessible Space at End Row ......................0./.,.U............ ... p......... o p o O d/ o �/� a ° o S o AA o ° 0 0 o WA ° o ° o a h32ffi" 80 nMn Iminl 132 min I 132 rnJn ITInl I.)ww h{»I law � 11M 324 nMn u» (b) Universal Parking Space Design Fig. A5 Parking Space Alternatives '. dF • *XChAi�P� Alzo�'`� Qau.�- v�..� You v/ N deve_cc.:.eT- 2 Na :e a_*:c add_~ess C- cw�.er 3 . Nye and add.: ess of develcce_ add= ess , and phcae nee_- c f des'_g::er S MFEi cf sz:,-veycr, enc=.-ee=, c- a =;-4 tee _ LZ =!amCre^a= ' and data c r�v A. =5 C C- all. ccmd=-t_cn5 "TdCe d CI: �—e s- a5 a -?s _ Cf a C:Znd_�_Cr-a r C - _ _ T use �e_�'- r ccr.� __oral zacrc Zee_ Ra=..�? ed e t=e apcl b siat-tre -e and dz=.-a Y N T ° • =cce �_c.. =a^ (sca_= L • scel_ cf s__a p' z+^ (ac` of S; ta QUse a=_d zc.__-c cf adjei::_.^_g y N be ,-da_-_es for all Icu and ca=ca s eace cf all i cts iMi m c1uded t :e p? ar. SMCVr + TI = e lccat_cr, and d.L=ersier.s cz all recu_-ed s e tr, acks - ..-_ ad va_ d areas S &+CCl- Lccat_cr. of all buildings, s`ing, --c--1 r es , and uses ° ="'e prc_ccsed use of eact bu; dand s zact",=e / 20. a-r. ` Tte lccaticn — and t--ne cf all c-Nelling units — 21. GroLrd L iccr area and tet--1 ficor area of all - buildincs w=" r kR calculaticns fer ccar ercial and i::dus;.ria? zani.^.c dist.r_cts =e r_ic;:t of all buildings a_,:d stz--,ict•.:-es — — sHE�i T =- lcca`icr. and dimensier. cf all sic-,.-.s (9 '3.3*)- � Lcrs/Usas/7--u.i---= =s & 5 cc_= as ( c_ . c `) `r ii Cn. and -z=-,_e e=`cutccc=.s crace azers 26. -cca -_cn z^ a= ea c cc=cr. - cue_^, sPac_ 2? Lccau_cn ar.c cescr: — - = c28 c� rec=eat_,=ac_---_esLCca `cr. cs�e�ais zr^c Pees `- ways rCCa-_Cr. C= Cu..�CC= t=as' reC2C:acl2s y and cl azr et =n c ns:.= = _ t :e 5: to _Ccat4 cm c- ex_sc-;-.c - a.-^_d e , wed sweets cn z.^c Dins--.0 r.s, tc,,=.cz=; es, w-i cam, PaveCe_^_�, a=d 3 r sacs" �L _Cc_C. and c._-er_s_crs C`_ e_^-te_^ acas f=::= - T� 1..r=-C V I- f `rs Tb 6E Appk 4tD y V dat---- Ut- ties y N TO SC Affto-.D by FC6A ...es , i.-.c_uc?: c sewer a.^_c gate= -� t e size C- 1-; -es, =airs, and lame z s _ccaC�cn a-.c «:"._ cf al? ease=ens, , c . _c amd � S "* 5 _.� ;ace ease=en is - LCcat�cr. anc _ a i ages , f __ __ by ��- s , - - �- rec_ssa=-: tc=ee = ` e ccd,a Ib of "prereoveD Sy Fl far MACS HOO-- v N — 0 CalcI:. aticrs cesc_ ibirc the re�:_rec r.�.:.; e: of / Parcinc and lczci..:, s.aaces SIwCT •� Lccat cand A. all oar —ns arc lcacinc sPzces , cr_vef.:ays , Pamk' ng aisles, a �he= fea- -=_s tc be used SHED- 11 a-d c,yens cr, a- all handicapped spaces S4Err 1 RAM P I N E D ISAsLZb 4- -7 v N -c au= L;.es s-ae? s? cues, «ccd_'=d.S, as ar_d c:e=:7__ :rr e_•: ___ few `as I!.2 . Lcc_ t_cr. c= s a=rs a.rc �—a=.,.ace ways rands`a74-C Z ryes e= ci z tc ce t sa_ Wit. :raw ._ra. G'_=a_.:_ec C.L''�S z.'.` C==ss SZC v�vi-s C.i===filas N -�/ — O s �c ^wzta= rz.^acecer. _ _=.^. w _ c�= C�_C::' _s c 'e usac t-es, and exa==ies cz prc-r_s:cr_s �c =e c.s ad - - i COUNTY of FREDERICK Deparunent of Planning and Development 703 / 665-5651 Fax 703 / 678-0682 MEMORANDUM TO: Frederick County Planning Commission FROM: Evan A. Wyatt, Planner II I RE: Proposed Maintenance Hanger/Office Space At The Winchester Regional Airport DATE: November 28, 1994 Mr. Michael D. Kane, Delta Airport Consultants P.E., has requested an opportunity to present a site plan during the December 7, 1994 Planning Commission meeting regarding the above referenced improvements. The Winchester Regional Airport Authority plans to develop a new hanger that will provide two stories of office space, as well as an area that will be utilized for the maintenance of aircraft. Additional parking areas will be provided for the proposed facility. Enclosed is a copy of the proposed site plan for your review. Staff has asked Mr. Kane to present this plan formally to the Planning Commission and Board of Supervisors. This will allow each body to comment on this proposal and permit staff to ensure that these comments are adequately addressed by the applicant prior to final site plan approval. Staff asks that the Planning Commission provide administrative approval authority for the proposed site plan once all comments have been adequately addressed. 9 North Loudoun Strrct P.O. Box 601 Winchester, VA 22601 Winchester, VA 22604, VELA 0 AMAYORT CONSULTANTS, INC. engineers - planners Richmond Charlotte November 21, 1994 Mr. Evan Wyatt Frederick County Planning Dept. 9 Court Square Winchester, Virginia 22601 RE: Site Plan Documentation Relocate Parallel Taxiway A Winchester Regional Airport Winchester, Virginia AIP Project No. 3-51-0059-10/11 Delta Project No. VA 9302 & VA 9439 Dear Mr. Wyatt: As per our recent telephone conversation please find enclosed the following items which should complete the site plan approval process. 1. As per site plan comments from the following: a. Frederick County Inspections Department b. Commonwealth of Virginia, Department of Transportation C. Federal Aviation Administration d. City of Winchester e. Frederick Winchester Health Department f. County of Frederick Fire Marshall g. Lord Fairfax Soil and Water Conservation District 2. Please find enclosed sheets 1, 3A, 3 and 9 through 22 for the project plans. In a related matter Delta is requesting an opportunity to address the Planning Commission (December 7, 1994) and the Board of Supervisors (December 14, 1994) for the new airport hangar site referenced in your November 21, 1994 letter. Copies of the proposed site plan will be forwarded under a separate cover prior to the scheduled meetings. 7333 Whitepine Road Telephone (804) 275-8301 Richmond, VA 23237 Fax (804) 275-8371 Mr. Evan Wyatt November 21, 1994 Page Two If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerely, Michael D. Kane, P. E. MDK: kgp Enclosures cc: Granville Amos, Executive Director wo/encl. VA 9302 C 191 • C EL TA - - A MPOR T CONSUL TA NTH, /NC, engineers - planners Richmond r= '� Charlotte November 23, 1994 Mr. Evan Wyatt Frederick County Planning Dept. 9 Court Square Winchester, Virginia 22601 RE: Corporate Hangar Site Plan Winchester Regional Airport Winchester, Virginia Delta Project No. VA 9439 Dear Mr. Wyatt: Delta has forwarded preliminary plans for your review to determine which sheets will be required for the twenty-five (25) copies required. The twenty-five (25) copies and presentation slide will be forwarded to your office no later than December 1, 1994. In addition, the airport will complete the site plan application and send the request for site plan comments to the appropriate agencies. If you should have any questions concerning this matter, please do not hesitate to contact our office. Sincerely, Michael D. Kane, P. E. MDK: kgp VA 9439 C016 7333 Whitepine Road Telephone (804) 275-8301 Richmond, VA. 23237 Fax (804) 275-8371 MOO fr� 4 G�ry A COMMONWEALTH of VIRGINIA DEPARTMENT OF TRANSPORTATION 14031 OLD VALLEY PIKE DAVID R. GEHR P.O. BOX 278 WILLIAM H. BUSHMAN, P.E. COMMISSIONER EDINBURG, 22824-0278 RESIDENT ENGINEER TELE(703)984-5600 May 3, 1995 FAX (703) 984-5607 Mr. John. C. Longnaker, P.E. C/O Delta Airport Consultants, Inc. 733 Whitepine Road Richmond, VA 23237 Dear Mr. Longnaker: Ref: Winchester Regional Airport Delta Job Number VA9439 Route 645 Frederick County This is to acknowledge receipt of your revised site plan dated April 17, 1995 for the referenced project. It appears all of our previous review comments have been addressed. Therefore, the plan is approved with the understanding all work within the Route 645 right- of-way will be completed in accordance with these plans and VDOT's current Road & Bridge Standards and Specifications. The appropriate land use permits may now be applied for to cover work within the Route 645 right-of-way. Said permits are issued by this office and will require a processing fee and surety bond coverage. Permits of this nature may take approximately thirty days to process and issue once satisfactory application has been made. Therefore, I would suggest application be made as soon as practicable. If you have any questions concerning the above, please let me know. RBC/rf xc: Mr. J. B. Diamond Mr. S. A. Melnikoff Mr. R. W. Watkins Sincerely, William H. Bushman Trans. Resident Engineer By: Robert B. Childress Trans. Permits & Subdivision Specialist Supervisor `a��67 TRANSPORTATION FOR THE 21 ST CENTURY Cl O COMMONWEALTH of VIRGINIA DEPARTMENT OF TRANSPORTATION P. O. BOX 278 DAVID R. GEHR EDINBURG, 22824 WILLIAM H. BUSHMAN, P.E. COMMISSIONER RESIDENT ENGINEER TELE17031984-5600 June 12, 1995 FAX (703) 984-5607 Mr. Ken Brammer Ref: Winchester Regional Airport Authority C/O Delta Airport Consultants, Inc. Route 645/728 Relocation Project 7333 White Pine Road Frederick County Richmond, VA 23237 Dear Ken: As discussed this morning, I am enclosing for your use copies of our latest correspondence to Mr. Mark H. Flynn and Mr. L. Allen Ebert concerning the referenced project. If you have any questions or if we can be of further assistance to you in completing this project, please let me know. Sincerely, William H. Bushman Trans. Resident Engineer 6�' /� - Ry- Robert B. Childress Trans. Permits & Subdivision Specialist Supervisor RBC/rf Enclosures xc: Mr. S. A. Melnikoff Mr. R. W. Watkins, Attn: Mr. Evan Wyatt TRANSPORTATION FOR THE 21 ST CENTURY • �,c14,ii � lbw/ C 7' COMMONWEALTH of VIRGINIA DEPARTMENT OF TRANSPORTATION 14031 OLD VALLEY PIKE DP.O. BOX 278 WILLIAM H. BUSHMAN, P.E. COMMISSIONER GEHR onnMlSSIONER EDINBURG, 22824-0278 RESIDENT ENGINEER � TELE(703)984.5600 February 13, 1995 FAX (703) 984.5607 Mr. Mark H. Flynn, Counsel Ref: Route 645/728 Relocation Project C/O Winchester Regional Airport Frederick County 491 Airport Road Winchester, VA 22602 Dear Mr. Flynn: I am writing in response to your letter of December 16, 1994 concerning the referenced project. While the deed of exchange between the Winchester Regional Airport Authority and VDOT you have provided is workable, it poses some problems. It will require approval by the Attorney General's Office and a resolution by the Commonwealth Transportation Board authorizing the Commissioner to sign the deed. In addition, the Department does not grant general warranty deeds. A simple method of handling this transaction would be for the Airport Authority to go ahead and give us a deed of dedication. This would be done with the understanding from us in writing that we would convey back the old section of right-of-way as soon as the abandonment process is complete. An immediate benefit of handling the transaction as previously mentioned would be the addition and abandonment process with the County could proceed without delay. If you have any questions or would like to discuss this matter in more detail, please give me a call. Sincerely, William H. Bushman Trans. Resident Engineer Q—Z /� ZJX&' —___. By: Robert B. Childress / Trans. Permits & Subdivision Uv6U Specialist Supervisor Y% RBC/rf xc: Mr. R. S. Ryder, Mr. R. W. Watkins Attn: Mr. Evan Wyatt 4 DAVID R. GEHR COMMISSIONER r a Ix TO 7O COMMONWEALTH of VIR QINIA Mr. L. Allen Ebert, L.S. 35 West Boscawen Street Winchester, VA 22601 Dear Allen: DEPARTMENT OF TRANSPORTATION 14031 OLD VALLEY PIKE P.O. BOX278 WILLIAM H. BUSHMAN, P.E. EDINBURG, 22824-0278 RESIDENT ENGINEER TELE(703)984.5600 February 14, 1995 FAX (703) 984-5607 Ref: Winchester Regional Airport Authority Routes 645 & 728 Frederick County In recent discussions with the County Planning Staff it was agreed upon the entire section of Route 728 affected by the Airport's relocation project should be abandoned. In our earlier discussions the portion across the front of the North Frederick Realty property was proposed to be discontinued. Since then a request from the North Frederick Realty owners to abandon this section has been received. In order to proceed with the abandonment process I'll need you to revised the enclosed plat. Thank you for your cooperation in this matter. If you have any questions, please let me know. Sincerely, William H. Bushman Trans. Resident Engineer By: Robert B. Childress Trans. Permits & Subdivision Specialist Supervisor RBC/rf Enclosure xc-. Mr. Steve A. Melnikoff Mr. Robert W. Watkins Attn: Mr. Evan Wyatt r4o) 4 DAVID R. GEHR COMMISSIONER �yt�� , •))(i 311' �l t,�CJ I'/ (gal f T.�•+l. COMMONWEALTH of V1RQ1N1A'- -t�•i DEPARTMENT OF TRANSPORTATION 14031 OLD VALLEY PIKE rr P.O. BOX 278 �W1Qf4rA�H\BUSHMAN, P.E. EDINBURG, 22824-0278 RESIDENT ENGINEER TELE(703)984.5600 FAX (703)984.5607 March 22, 1995 Mr. John Longacre, Project Manager Ref: Winchester Regional Airport C/O Delta Airport Consultants, Inc. Delta Job No. VA9439 7333 Whitepine Road Route 645 Richmond, VA 23237 Frederick County Dear Mr. Longacre: As requested, we have reviewed the above referenced project's site plan dated February 1, 1995. Our comments may be found on the enclosed plans marked in red and as follows: 1. The proposed entrance design will need to be modified to provide a minimum 30' width, 36' tapers and 12' pavement offset. 2. The typical entrance section will need to be revised as noted to include a minimum pavement design of 8" of 21-B aggregate, 3" Type BM-2, and 1.5" Type SM-2A asphalt concrete. 3. The southeast corner of the parking lot will need to be adjusted as necessary to avoid encroaching on the Route 645 right-of-way. Also, you should be aware Frederick County Zoning Ordinance requires a 5' separation between the road right-of-way line and parking lot curb. 4. The existing underdrain under the entrance to be removed will need to be removed and combination drain under Route 645 extended adequately to drain. 5. A minimum 20' drainage easement will need to be provided to enclose Structure D-107 and 15" pipe to Structure D-106. 6. A profile of the proposed watermain crossing within the Route 645 right-of-way will be required which details length, depth, encasement pipe, size, type, etc. Also the crossing should be relocated westward as necessary to avoid cutting the Cesna Drive pavement for the water line tap. TRANSPORTATION FOR THE 21 ST CENTURY • • Mr. John Longacre Winchester Regional Airport March 22, 1995 Page 2 7. Sight distance, reference, and speed limit will need to be incorporated into the plan. 8. Other miscellaneous items as marked will need to be addressed. Please revise and resubmit six (6) copies for final approval. Should any changes be deemed necessary, please design them to meet or exceed the above recommendations. If you have any questions, please let me know. Sincerely, William H. Bushman Trans. Resident Engineer 611 z za&�� By: Robert B. Childress Trans. Permits & Subdivision Specialist Supervisor RBC/rf Enclosure xc: Mr. J. B. Diamond Mr. S. A. Melnikoff Mr. R. W. Watkins Mr. John Whitacre 0 e`C d DAVID R. GEHR COMMISSIONER I COMMONWEALTH of VIRGINIA DEPARTMENT OF TRANSPORTATION 14031 OLD VALLEY PIKE P.O. BOX 278 EDINBURG,22824-0278 March 3, 1995 Mr. Michael D. Kane, P.E. C/O Delta Airport Consultants, Inc. 7333 Whitepine Road Richmond, VA 23237 Dear Mr. Kane: WILLIAM H. BUSHMAN, P.E. RESIDENT ENGINEER TELE(703)984.5600 FAX (703)984.5607 Ref: Winchester Regional Airport Route 645 Frederick County We have received your site plan dated February 1, 1995 for the referenced project. We have forwarded the plan to our District Office in Staunton for review. Once we have received any comments we will forward same to you. A review of this nature takes approximately sixty days. In the meantime if you should have any questions, please let me know. RBC/rf xc: Mr. S. A. Melnikoff Mr, R. W. Watkins Sincerely, William H. Bushman Trans. Resident Engineer By: Robert B. Childress Trans. Permits & Subdivision Specialist Supervisor TRANSP^RTAT!0N FOR THE 2? ST CENTURY FROM FREDERICK CO. SANITRTIO" AUTHORITY FredeNck County Saiiiltatlor tttorlty Poet Offloe Box ate WINCHESTER, VIRGINIA 22604 Phone 665-5690 TO .l1f�T� /��/�'l��% 70,V SGe T/ �33 �� I�.YilF�i�f• ��> 04.17,1995 1�45 P. 1 (LIE UTY ®7 1T�3Ana� 7�1T`U 1Qa DATL ATTLNTION R9, /,01Vr111 5 7f L` /^ /it' lei;' > WE ARE SENDING YOU 1�2'Attached O Under separate cover via the following Items: O Shop drawings ❑ Copy of letter ❑ Prints 12- Plans ❑ Samples ❑ Specifications ❑ Change order ❑ COPIES DATE NO. DESCRIPTION T of/ Post•It'" brand fax transmittal memo 7n r of pogo* P FromCo. r to. T !'RAr opt. one r Fax 0 7 �% t�� Fax THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use > ❑ As requested ❑ Approved as submitted P' Approved as noted ❑ Returned for corrections O For review and comment 0 0 FOR BIDS DUE ❑ Resubmit coplos for approval ❑ Submit copies for distribution O Return corrected prints 19 O PRINTS RETURNED AFTER LOAN TO US REMARKS --;� NL/ H 'V/ W— / / %r",// C�h�it'.F lT S (/v GF /,r,F e e2 COPY TO--. 11 enclosures are not as noted, kindly notify us of once. ol SIGNED: <' Frederick County Sanitation Cority Post Office Box 618 WINCHESTER, VIRGINIA 22604 Phone 665-5690 f EG'D J AN 12 IT To ZzcG79 /19,Pe r97_ �'��' SG L T/,�iTS_ / 7 3 33 0/0iT� Aa S'4E�- " e 4' ed g2g17 LEFT A OF V[MbOZEDUMU TE� D YS J. OB NO ATTENTION RE: _ p C O > WE ARE SENDING YOU (�ttached ❑ Under separate cover via the following items: ❑ Shop drawings ❑ Prints P9-flans ❑ Samples E3-Specifications ❑ Copy of letter ❑ Change order ❑ COPIES DATE NO. DESCRIPTION THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use > ❑ As requested ❑ For review and comment ❑ Approved as submitted ❑ Approved as noted L3ZReturned for corrections ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints ❑ FORBIDSDUE ,p 19 ❑ PRINTS RETURNED AFTER LOAN TO US / REMARKS / f 'Fy141V 3 /_�� 5 4 4_141 14-V s � P•s� �s �.av s�'�cs COPY SIGNE If enclosures are not as noted, kindly notify us at once me TO: FROM: DATE: ✓141-11/ -9 1 9 f SUBJECT: wx�C,0QeST/`R r� u REC'D J AN 3 p 1995 Frederick County Sanitation Authority Post Office Box 618 Winchester, Virginia 22604 Telephone: (703) 665-5690 a -T-a �w ST,fL � Ta �� ST9GG Rt- PFa T'•/ L /A/t= • f�5.4 T; dw�l `" TAN -- 4 " c'ONNFCT/oN ftF" i l i v PV4 ?-fi1 " IfF. ✓✓rF % g'v L7�✓a f _ s�k rirt �� fA -ro 0.,4 KBE 7;6- ` 7 v iG fC7 REQUEST FOR SITE PLAN COMMENTS Frederick County Inspections Department Attn: Building Official P.O. Box 601 Winchester, Virginia 22601 (703) 665-5650 The Frederick County Inspections Department is located at 9 North Loudoun St., 2nd Floor of the Hammon Building in Winchester, if you prefer to hand deliver this review. Applicant's name, address and phone number: [•linchester Regional Airport Authority 491 Airport Road. T-linchester. Virginia 22602 703-662--5786 Name of development and/or description of the request: Hangar Airport Location: [•linchester Regional Airport 491 Airport Road (State Route 645) Inspection Department Comments: Building shall comply with Virginia Uniform Statewide Building Code and Section 311, Use Group S (Storage) of the BOCA National Building Code/1993. Other codes that apply are title 24 Code of Federal Regulation, Part 36 Nondiscrimination on the Basis ot Disability by Public Accommodations and in Commercial Facilities. (NOTE: Section 705.2 for fire separation distance between proposed hanger and tuture hanger Check Section 904 Fire Suppression System or install proper fire separation) Code Administrator Signature & Date: (NOTICE TO INSPECTIONS DEPT.*PLEASE, RM TO APB ICANT. ) NOTICE TO APPLICANT It is your responsibility to complete this form as accurately as possible in order to assist the agency with their review. Also, please attach a copy of your plans and/or application form. �ZJ -14- COUNTY OF FREDERICK, VIRGINIA FIRE AND RESCUE DEPARTMEN-I 9 N. Loudoun Street, 2nd Flooi Winchester, Virginia 22601 Thomas W. Owens Director June 24, 1995 Delta Airport Consultants 7333 Whitepine Road Richmond, VA 23237 Attn: John Longnaher Dear Mr. Longnaher, Douglas A. Kiracofe Fire Marshal I've completed my review of this revised site plan for Winchester Regional Airport Hanger. All items I previously requested have been addressed and are approved. Thank you for your work and efforts to ensure adequate fire protection on this project. Si erely Douglas A. Kiracofe Fire Marshal DAK/ca CC: Evan Wyatt, Planner. File DIRECTOR - (703) 663-5618 FIRF .1vlARS11AL - (703) 665-6350 FAX - (703) 678-0682 0 0 C, ( COUNTY OF FREDERICK, VIRGINIA FIRE MARSHAL'S OFFICE LAND DEVELOPMENT COMMENTS Control No. 0502952241 Date Received 042795 Date Reviewed 050295 Applicant Name Delta Airport Consultants Address 7333 Whitepine Road Richmond, VA 23237 Project Name Winchester Regional Airport Hangar Phone No. 804-275-8301 Type of Application Site Plan Current Zoning RA lst Due Fire Co. 18 1st Due Rescue Co. 18 Election District Shawnee RECOMMENDATIONS Automatic Sprinkler System X Residential Sprinkler System Automatic Fire Alarm System X Other Emergency Vehicle Access; Adequate X Inadequate Not Identified SEE NOTE #1 Fire Lanes Required; Yes X No Comments Posted fire lanes required at all hydrant locations, Siamese connections, and fire lane on East side of project. Roadway/Aisleway Widths; Adequate Inadequate Special Hazards Noted; Yes X SEE NOTE #1 v Not Identified No Comments Fire grading of exterior walls must be addressed so future hangar can be built with separation distance shown. Buildings without fire rated exterior walls will not be permitted to be constructed this close together. - Continued - J A N— 2 3— 9 5 M O N 1 4: 4 6 W I N C H E S T E R A I R P '2 T P.01 Fax Transmittal Memo.. 672 CVN rA- Odpt. Chwq: `----- _. ' �nczra� Faxrubrot on. • - ; .. Fdx . , �Tal�plwno _ .... -- Commcx; p �. �Do;troy YElm- �covorplavp y C I OV.f SMe _... _..........._._. .. COUNTY OF FREDERIM VIRGINIA FIRE MARSHAL'S OFFICE LAND DEVELOPMENT COMMENTS Control No. 1230941929 Date Received 12309Date Reviewed 01189.5 Applicant Name Winchester Eegional Airport - Address 491 Airport }toad Winchpoter VA 22602 Project Name Airport Ranger Phone No. 703-662-5786 Type of Application Site Plan Current Zoning RA 1st Due Fire Co. 18 1st Due Rescue Co. 18 Election District Shawnee RECOMMENDATIONS Automatic Sprinkler System X Residential Sprinkler System Automatic Fire Alarm System X Other Emergency Vehicle Access; Adequate X Inadequate Not Identified Fire Lanes Required! Yee J(_ No Comments Poster fire lanes reguirgd to all hydrant and fire depG. Siamese cgnnec� ops Roadway/Aisleway Widths; Adequate X_ Inadequate Special Hazards Noted; Yes Comments Not Identified No X - Continued - V W39 il^ 1s Locations] See Notes Inadequate Location; Not Approved 1 This p. an is f,o;r cfradi ng and draxnag2 and lacks some detail for a co Clete ieview. Please show the following; / ,A) Location of exipting hydrants. /17-'?h B)Fire main size goincr to building.. Q} Loeation of siamesg connection for sprinkler system. 2 AccPss for emercfen Yy vehiclgg must be maintained during construction. 3} Burning of construct gn debria Qn $zte Prohibited. C4 _A, ydrant ig required with] n 100' of the !s_prial-,Ig ' pyetem siameag connection. This d.ie�ance is tg bp measured centerline of the street or fire lane._`) All fire lanes must be 22Q' in width. T m 75 hx PLANS DISAPPROVED FIRE MARSNAL, FREDE:RICI< CUI;tvTY Do gRI A. — KiFa-C-Oie Fire Marshal COUNTY of FREDERICK Public Works Department Harvey E. Strawsnyder, Jr., P.E. Director 703/665-5643 Fax: 703/678-0682 June 21, 1995 Mr. John C. Longaker, P.E. Delta Airport Consultants, Inc. 7333 Whitepine Road Richmond, Virginia 23237 RE: Winchester Regional Airport Hangar Facility Frederick County, Virginia Dear Mr. Longaker: We have completed our review of the site plan for the proposed hangar facility and grant our approval of same. However, we recommend that the following comments be considered and incorporated where necessary: 1) Sheet 4 of 14 Site note "A" refers to the removal of an existing spillway and reconstruction of a new rip rap spillway at elevation 706.0. Based on the proposed contours, it appears that a low point, approximately elevation 704.5, will be created in the southwest corner of the new or modified stormwater basin. This condition should be corrected. Otherwise, there will be no need to reconstruct the spillway. 2) Sheet 4 of 14 Provide this office with a copy of the stormwater calculations justifying the design of the modified stormwater basin. Include delineated drainage areas with these calculations. 3) Sheet 10 of 14 Land disturbance permits are required on all projects that disturb more than 10,000 square feet. These permits should be obtained from the Public Works Department prior to commencing any site work. No fee will be required if an approved site plan is submitted with the land disturbance application. This procedure will allow our staff to 107 North Kent Street Winchester, VA 22601 P.O. Box 601 Winchester, VA 22604 9 • Winchester Regional Airport Hangar Facility Page Two June 21, 1995 inspect the erosion and sediment control measures to ensure conformance with the approved site plan. If you should have any questions regarding the above comments, please contact me at 704-665-5643. Sincerely, A cv� �, Harvey . Strawsnyder, Jr., P.E. Directj of Public Works HES:rls cc: Evan A. Wyatt, Planning and Zoning V file VELTA AIRPORT CONSULTANTS, INC. engineers - planners Richmond Charlotte July 10, 1995 Mr. H. Edward Strawsnyder Frederick County Engineering and Inspections Dept. 9 N. Loudoun St., 2nd floor Winchester, VA 22601 RE: Review Comments Corporate Hangar Winchester Regional Airport Winchester, Virginia Non-AIP Delta Project No. VA 9439 Dear Mr. Strawsnyder: In response to your comment letter dated June 21, 1995, we offer the following: 1. The grades have been revised so that the spillway is at the low point. Revised plans were submitted previously. 2. Please find enclosed a drainage area map and a set of drainage calculations for the proposed drainage improvements and detention basin. 3. It is our understanding that the land disturbance permit for this project was added to the permit for the taxiway construction project. If you should have any questions regarding this matter, please do not hesitate to contact our office. Sincerely, FnC. Longnak , P.E. JCL:dtk Enclosure �, 0 cc: Granville Amos, Exec. Dir. Winchester Regional Airport wo/enclosure N Evan Wyatt, Frederick County Planning w/enclosure VA 9439 C059 7333 Whitepine Road Telephone (804) 275-8301 Richmond, VA 23237 Fax (804) 275-8371 A 943'� 1 �c+e oav ►=3G (oZ O (o9g J . 3 <,93 -70o �.2428 7o1 1181 ?0Z `7. 14V 703 �.19Z0 704 �6G� 7o5 5I Ss U1. F /��Z -70'7 )C 9'� -4RE, .4 ) ). 1 4c. FRon C=69 p c//�� 3 1 pYEU_J�:.ort'!GfJi Cii -1`11 fJ1 CJ.y`1 4C P4060 �B.SAC vGLOf-!'. l:' CGl i J.r', '!.i' = O U� C�QOr7 �QAINC..: CiLCJ 12U►.1 (�R rj ROuf,1J6 FopR V,4Rr0US puR.oT:ar_,� T(� f7irjjb C�2,r PE4►. �AS:VJ iLL.6VA7/4dtiJ /0 - YK /G 0 - Yoe TO -70Z.9� —104 2.3 7016.46 ZS --7oz,% -70439 -?oG.4G Z7 7'-)7 °4 ?G4.'�� 7 0 G e+7 Z8 -: ; 7(4.4 8 76eo.4-7 30 Z.9Z -7,;1,�J 70 G AG As A COMPkOH-SE/ u5L r V N STORM SEWER DESIGN L & D 229 COMPUTATIONS ROU i E PROJ. COUNTY DISTRICT DESCRIPTION - -_-FAA►Jranl<_ ",; Ie,=rAkA, r FROM MEN INVERT ELEVATIONS 1 0 mom POINT LIPPER END (Ii UnNUL, UMPA`, L I Nt PROJECT w,< , - --',ZP.c,ICN I NLET STATION atlet outer Surface Elev. 0° � � Sf° % Hf JUNCT I ON LOSS Find Inlet H biter Vo Q i Vi QiVi V.2 Hi Argle H1.3 0o Ht H{ Ht Surface EI Rim Elev. 17 I o(n �O.UO 3•Z 8 O.ZS �o0 S • l o Q.7 -, /�. /o J. I 0• - GG .= 1C.7 1 D ) o 1` `/7%��"?I •°''''1 ?7 �•j(o 70 P 71��1I�( �'� r) �a._ — �.ly I 10° ',.4Z '0),.0?4;; �,4z Cl),.7i�? 70Z,58 -7 ptc/_ -7,�z � �4 13 S '"'�. (� �/� l :G '- � - �.y - G.Z4 0.�? 0'' 1 /(Ay _,� I � �� -• .- - n101 V i 2 V 2 V i 2 FINAL H=Hf t + H 900 K- 0. 70 500 K- 0. 47 200 K= 0. 16 H i -0. 35 H°=0. 25 ° H= K ° ° ° 29 2g � 2g Ht= H°* H i+Ho 80 K • 0.66 40 K = 0. 38 15 K = 0. 10 7n° K = n . E,1 300 K = 0.28 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:59:33 06-28-1995 MODIFIED RATIONAL METHOD ---- Graphical Summary for Specified Storm Duration ---- Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 ********************************************************************** * * * RETURN FREQUENCY: 2 yr Allowable Outflow: 1.00 cfs * 'C' Adjustment: 1.000 Required Storage: 11,418 cu.ft. * * *--------------------------------------------------------------------* * Peak Inflow: 20.03 cfs Inflow .HYD stored: POST2 .HYD ********************************************************************** F L O W c f s Tc= 10.00 minutes I = 4.100 in/hr Area (ac): Q = 20.03 cfs Weighted C: .I. Adjusted C: Required Storage .----------- 11,418 cu.ft. .. 0 0 o Q= 1.00 cfs o (Allow.Outflow) 0 0 NOT TO SCALE o o ----------------------- ------------------------ 19.50 minutes 11.14 0.44 0.44 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:59:33 06-28-1995 Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 **** Modified Rational Hydrograph ***** Weighted C = 0.439 Area= 11.140 acres Tc = 10.00 minutes Adjusted C = 0.439 Td= 10.00 min. I= 4.10 in/hr Qp= 20.03 cfs RETURN FREQUENCY: 2 year storm Adj.factor = 1.00 Output file: POST2 .HYD Time Minutes 0.00 7.00 14.00 HYDROGRAPH FOR SPECIFIED DURATION = 10.00 min. For the 2 Year Storm Time increment = 1.00 Minutes Time on left represents time for first Q in each row. --------------------------------------------------------------- 0.00 2.00 4.01 6.01 8.01 10.02 12.02 14.02 16.02 18.03 20.03 18.03 16.02 14.02 12.02 10.02 8.01 6.01 4.01 2.00 0.00 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:59:33 06-28-1995 MODIFIED RATIONAL METHOD ---- Graphical Summary for Specified Storm Duration ---- Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 ********************************************************************** * * RETURN FREQUENCY: 10 yr Allowable Outflow: 1.00 cfs * 'C' Adjustment: 1.000 Required Storage: 15,522 cu.ft. *--------------------------------------------------------------------* * Peak Inflow: 26.87 cfs Inflow .HYD stored: POST10 .HYD ********************************************************************** F L O W c f s Tc= 10.00 minutes I = 5.500 in/hr Area (ac): . Q = 26.87 cfs Weighted C: .�. Adjusted C: Required Storage . .----------- 15,522 cu.ft. .0 0 o Q= 1.00 cfs o (Allow.0utflow) o o NOT TO SCALE o 0 ---------------------- ------------------------ 19.63 minutes 11.14 0.44 0.44 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:59:33 06-28-1995 Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 **** Modified Rational Hydrograph ***** Weighted C = 0.439 Area= 11.140 acres Tc = 10.00 minutes Adjusted C = 0.439 Td= 10.00 min. I= 5.50 in/hr Qp= 26.87 cfs RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: POST10 .HYD Time Minutes 0.00 7.00 14.00 HYDROGRAPH FOR SPECIFIED DURATION = 10.00 min. For the 10 Year Storm Time increment = 1.00 Minutes Time on left represents time for first Q in each row. --------------------------------------------------------------- 0.00 2.69 5.37 8.06 10.75 13.43 16.12 18.81 21.50 24.18 26.87 24.18 21.50 18.81 16.12 13.43 10.75 8.06 5.37 2.69 0.00 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:59:33 06-28-1995 MODIFIED RATIONAL METHOD ---- Graphical Summary for Specified Storm Duration ---- Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 ********************************************************************** * * RETURN FREQUENCY: 100 yr Allowable Outflow: 1.00 cfs * 'C' Adjustment: 1.250 Required Storage: 27,980 cu.ft. * *--------------------------------------------------------------------* * Peak Inflow: 47.63 cfs Inflow .HYD stored: POST100 .HYD ********************************************************************** F L O W c f s Tc= 10.00 minutes I = 7.800 in/hr Area (ac): Q = 47.63 cfs Weighted C: .�. Adjusted C: Required Storage ----------- 27,980 cu.ft. .. •0 0 0 Q= 1.00 cfs 0 (Allow.Outflow) o o NOT TO SCALE o 0 ----------------------- ------------------------ 19.79 minutes 11.14 0.44 0.55 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:59:33 06-28-1995 Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 **** Modified Rational Hydrograph ***** Weighted C = 0.439 Area= 11.140 acres Tc = 10.00 minutes Adjusted C = 0.548 Td= 10.00 min. I= 7.80 in/hr Qp= 47.63 cfs RETURN FREQUENCY: 100 year storm Adj.factor = 1.25 Output file: POST100 .HYD HYDROGRAPH FOR SPECIFIED DURATION = 10.00 min. For the 100 Year Storm Time Time increment = 1.00 Minutes Minutes Time on left represents time for first Q in each row. -------- 0.00 --------------------------------------------------------------- 0.00 4.76 9.53 14.29 19.05 23.82 28.58 7.00 33.34 38.11 42.87 47.63 42.87 38.11 33.34 14.00 28.58 23.82 19.05 14.29 9.53 4.76 0.00 LO-269 ^Project _ Plan Sheet No. Designer VA, ° ;' Rev Date Date Sheet of HYDROLOGICAL DATA: D. AC. — — AHW Controls STATION IOOyr. Flood plain elev Design AHW depth Slay. Structures Slay. freq. TWelev. Shoulder elev -i_ elev. Skew Cover — — — — -- — -- — — -- — - — — — DISCHARGES USED Q _ = CFS Q _ . CFS QManagement�a _ CFS Q _ . CFS Q _ ` CFS RISK ASSESSMENT ADT Detours Available ,Length Overtopping Stage Flood Plain Criteria and Significant Impact V .- ' Inv El. � SO. Inv.El. Orig Gr. Elev. L ■ Ofig.Gr. EIsv. CULVERT TYPE aSIZE Q Q/B HEADWATER COMPUTATIONS CONT HW. ELEV OUTLET VELOCITY End Treat. COMMENTS INLET CONT. OUTLET CONTROL HW/D HW Ke do ho H LSo HW CM Smooth 15 RC. I.5o 0.s 0.9 log Lop, j.zo ` (. 1 Z.� 38 ' 1,Z5 I.Z5 I ZS 4.tT 4.78 7074- 2 3. 4.5Co '-1(4.71 a.98 7050- q. �.o� ' 4g 703.I�. Z.0 Z 50�.ZA .0 1 ' Z3 70� = " -- i.45 I,82 1.0u i.13 1.13 i60 ►,7(0 7rxD,44 - SUMMARY d RECOMMENDATIONS Design F" Exceed. Prob. Elev. Overtop Flood Exceed Prob. Elev. Base Flood 1%Exceed .Prob —_ Elev. _- _�— POND-2 Version: 5.13 SIN: 1220510270 Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 CALCULATED 06-28-1995 11:39:06 DISK FILE: a:\9349 .VOL Planimeter scale: 1 inch = 30 ft. * Elevation Planimeter Area Al+A2+sgr(A1*A2) Volume Volume Sum (ft) (sq.in.) (sq.ft) (sq.ft) (cubic-ft) (cubic-ft) --------------------------------------------------------------------------- 698.62 0.00 0 0 0 0 699.00 0.87 782 782 99 99 700.00 5.24 4,719 7,422 2,474 21573 701.00 6.12 51506 15,322 5,107 71681 702.00 7.14 6,428 17,884 5,961 131642 703.00 8.19 7,373 20,686 6,895 20,537 704.00 9.37 8,430 23,686 7,895 281433 705.00 10.55 9,491 26,866 8,955 37,388 706.00 11.81 10,633 30,170 10,057 471444 707.00 13.07 11,762 33,578 11,193 58,637 2 IA = (sq.rt(Area1) +((Ei-E1)/(E2-E1))*(sq.rt(Area2)-sq.rt(Area1))) where: El, E2 = Closest two elevations with planimeter data Ei = Elevation at which to interpolate area Areal,Area2 = Areas computed for El, E2, respectively IA = Interpolated area for Ei * Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) * (EL2-EL1) * (Areal + Area2 + sq.rt.(Area1*Area2)) where: EL1, EL2 = Lower and upper elevations of the increment Areal,Area2 = Areas computed for EL1, EL2, respectively Volume = Incremental volume between EL1 and EL2 Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: ********************************* Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 ********************************* ***** COMPOSITE OUTFLOW SUMMARY **** Elevation (ft) Q (cfs) Contributing Structures 698.62 0.0 1 699.12 0.9 1 699.62 2.9 1 700.12 5.0 2 700.62 6.3 2 701.12 7.0 2 701.62 7.7 2 702.12 8.3 2 702.62 9.0 2 703.12 9.6 2 703.62 10.2 2 704.12 10.7 2 704.62 11.1 2 705.12 11.6 2 705.62 12.0 2 706.12 16.3 2 +4 706.62 58.2 2 +4 707.00 106.1 2 +4 Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 Outlet Structure File: a:\9439 .STR Planimeter Input File: a:\9439 .VOL Rating Table Output File: a:\9439 .PND Min. Elev.(ft) = 698.62 Max. Elev.(ft) = 707 Incr.(ft) _ .5 Additional elevations (ft) to be included in table: SYSTEM CONNECTIVITY Structure No. Q Table Q Table ---------- --- ------------- CULVERT-CR 1 -> 1 TABLE 2 ? 1 -> 3 WEIR-VR 4 + 3 -> 5 Outflow rating table summary was stored in file: a:\9439 .PND Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 »»» Structure No. 1 ««« (Input Data) CULVERT-CR Circular Culvert (With Inlet Control) E1 elev.(ft)? 698.62 E2 elev.(ft)? 707.001 Diam. (ft)? 1.25 Inv. el.(ft)? 698.62 Slope (ft/ft)? .0068 T1 ratio? T2 ratio? K Coeff.? .0098 M Coeff.? 2 c Coeff.? .0398 Y Coeff.? .67 Form 1 or 2? 1 Slope factor? -.5 Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: ********************************* Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 »»» Structure No. 2 «« << (Input Data) TABLE Input your own rating table. E1 (ft) = 698.62 E2 (ft) = 707.001 Constant (ft) added to each elevation was: Elev. (ft) Q (cfs) ------- ---------- 698.62 0 700.12 5 700.4400000000001 6 701.85 8 703.4 10 705.6 12 708.1 14 Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 »»» Structure No. 4 «« << (Input Data) WEIR-VR Weir - Vertical Rectangular E1 elev.(ft)? 706 E2 elev.(ft)? 707.001 Weir coefficient? 3.1 Weir elev.(ft)? 706 Length (ft)? 30 Contracted/Suppressed (C/S)? S Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: ********************************* Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 ********************************* Outflow Rating Table for Structure #1 CULVERT-CR Circular Culvert (With Inlet Control) ***** INLET CONTROL ASSUMED ***** Elevation (ft) Q (cfs) Computation Messages --------------------------------------------- 698.62 0.0 No headwater 699.12 0.9 Equ.1: HW =.5 do=.361 699.62 2.9 Equ.1: HW =1.0 do=.68 700.12 5.0 Transition: HW =1.5 700.62 6.6 Submerged: HW =2.0 701.12 8.0 Submerged: HW =2.5 701.62 9.1 Submerged: HW =3.0 702.12 10.1 Submerged: HW =3.5 702.62 10.9 Submerged: HW =4.0 703.12 11.8 Submerged: HW =4.5 703.62 12.6 Submerged: HW =5.0 704.12 13.3 Submerged: HW =5.5 704.62 14.0 Submerged: HW =6.0 705.12 14.6 Submerged: HW =6.5 705.62 15.3 Submerged: HW =7.0 706.12 15.9 Submerged: HW =7.5 706.62 16.5 Submerged: HW =8.0 707.00 16.9 Submerged: HW =8.38 Ac=.294 Ac=.682 Used Unsubmerged Equ. Form (1) for elev. less than 700.06 ft Used Submerged Equation for elevations greater than 700.25 ft HW=Headwater (ft) dc=Critical depth (ft) Ac=Area (sq.ft) at do Transition flows interpolated from the following values: E1=700.06 ft; Q1=4.8 cfs; Dc=.89 ft; E2=700.25 ft; Q2=5.49 cfs Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 Outflow Rating Table for Structure #2 TABLE Input your own rating table. Elevation (ft) Q (cfs) Computation Messages --------------------------------------------- 698.62 0.0 699.12 1.7 Interpolated from input table 699.62 3.3 Interpolated from input table 700.12 5.0 700.62 6.3 Interpolated from input table 701.12 7.0 Interpolated from input table 701.62 7.7 Interpolated from input table 702.12 8.3 Interpolated from input table 702.62 9.0 Interpolated from input table 703.12 9.6 Interpolated from input table 703.62 10.2 Interpolated from input table 704.12 10.7 Interpolated from input table 704.62 11.1 Interpolated from input table 705.12 11.6 Interpolated from input table 705.62 12.0 Interpolated from input table 706.12 12.4 Interpolated from input table 706.62 12.8 Interpolated from input table 707.00 13.1 Interpolated from input table Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: ********************************* Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 ********************************* Outflow Rating Table for Structure #4 WEIR-VR Weir - Vertical Rectangular ***** INLET CONTROL ASSUMED ***** Elevation (ft) Q (cfs) Computation Messages 698.62 0.0 E < Inv.El.= 706 699.12 0.0 E < Inv.El.= 706 699.62 0.0 E < Inv.El.= 706 700.12 0.0 E < Inv.El.= 706 700.62 0.0 E < Inv.El.= 706 701.12 0.0 E < Inv.El.= 706 701.62 0.0 E < Inv.El.= 706 702.12 0.0 E < Inv.E1.= 706 702.62 0.0 E < Inv.El.= 706 703.12 0.0 E < Inv.El.= 706 703.62 0.0 E < Inv.El.= 706 704.12 0.0 E < Inv.E1.= 706 704.62 0.0 E < Inv.El.= 706 705.12 0.0 E < Inv.El.= 706 705.62 0.0 E < Inv.El.= 706 706.12 3.9 H =.12 706.62 45.4 H =.62 707.00 93.0 H =1.0 C = 3.1 L (ft) = 30 H (ft) = Table elev. - Invert elev. ( 706 ft ) Q (cfs) = C * L * (H**1.5) -- Suppressed Weir Outlet Structure File: 9439 .STR POND-2 Version: 5.13 S/N: 1220510270 Date Executed: Time Executed: Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 Outflow Rating Table 3 Table 3 = 1 ? 2 Elevation (ft) Q (cfs) Contributing Structures 698.62 0.0 1 699.12 0.9 1 699.62 2.9 1 700.12 5.0 2 700.62 6.3 2 701.12 7.0 2 701.62 7.7 2 702.12 8.3 2 702.62 9.0 2 703.12 9.6 2 703.62 10.2 2 704.12 10.7 2 704.62 11.1 2 705.12 11.6 2 705.62 12.0 2 706.12 12.4 2 706.62 12.8 2 707.00 13.1 2 Outlet Structure File: 9439 .STR POND-2 Version: 5.13 SIN: 1220510270 Date Executed: Time Executed: Corporate Hangar Site Preparation Modified Detention Basin Winchester Regional Airport Delta Project No. VA 9439 Outflow Rating Table 5 Table 5 = 3 + 4 Elevation (ft) Q (cfs) Contributing Structures 698.62 0.0 1 699.12 0.9 1 699.62 2.9 1 700.12 5.0 2 700.62 6.3 2 701.12 7.0 2 701.62 7.7 2 702.12 8.3 2 702.62 9.0 2 703.12 9.6 2 703.62 10.2 2 704.12 10.7 2 704.62 11.1 2 705.12 11.6 2 705.62 12.0 2 706.12 16.3 2 +4 706.62 58.2 2 +4 707.00 106.1 2 +4 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:13:10 06-28-1995 F L O W c f s MODIFIED RATIONAL METHOD ---- Graphical Summary for Specified Storm Duration ---- First peak outflow point assumed to occur at inflow recession leg. Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 ********************************************************************** * RETURN FREQUENCY: 2 yr I Allowable Outflow: 1.00 cfs * 'C' Adjustment: 1.000 Required Storage: 33,839 cu.ft. *--------------------------------------------------------------------* * Peak Inflow: 19.47 cfs Inflow .HYD stored: POST2 .HYD ********************************************************************** Td = 30 minutes /--------- Specified Storm Duration, Td---------/ Tc= 10.00 minutes I = 4.100 in/hr Q = 38.01 cfs .I. Required Storage .-- 33,839 cu.ft. x x•x x x xlx x x x x x x x x x x Return Freq: 2 yr C adj.factor: 1.00 Area (ac): 11.14 Weighted C: 0.83 Adjusted C: 0.83 Td= 30 minutes I = 2.100 in/hr Q = 19.47 cfs x x O x o x o NOT TO SCALE . x o o ----------------------------------------------------- o Q= 1.00 cfs Ix (Allow.Outflow) x Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:13:10 06-28-1995 Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 **** Modified Rational Hydrograph ***** Weighted C = 0.832 Area= 11.140 acres Tc = 10.00 minutes Adjusted C = 0.832 Td= 30.00 min. I= 2.10 in/hr Qp= 19.47 cfs RETURN FREQUENCY: 2 year storm Adj.factor = 1.00 Output file: POST2 .HYD HYDROGRAPH FOR SPECIFIED DURATION = 30.00 min. For the 2 Year Storm Time Time increment = 1.00 Minutes Minutes Time on left represents time for first Q in each row. -------- --------------------------------------------------------------- 0.00 0.00 1.95 3.89 5.84 7.79 9.73 11.68 7.00 13.63 15.57 17.52 19.47 19.47 19.47 19.47 14.00 19.47 19.47 19.47 19.47 19.47 19.47 19.47 21.00 19.47 19.47 19.47 19.47 19.47 19.47 19.47 28.00 19.47 19.47 19.47 17.52 15.57 13.63 11.68 35.00 9.73 7.79 5.84 3.89 1.95 0.00 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:13:10 06-28-1995 F L 0 W c f s MODIFIED RATIONAL METHOD ---- Graphical Summary for Specified Storm Duration ---- First peak outflow point assumed to occur at inflow recession leg. Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 ********************************************************************** * RETURN FREQUENCY: 10 yr I Allowable Outflow: 1.00 cfs * 'C' Adjustment: 1.000 Required Storage: 49,691 cu.ft. *-------------------------- ------------------------------------------* * Peak Inflow: 28.27 cfs Inflow .HYD stored: POST10 .HYD ********************************************************************** Td = 30 minutes %--------- Specified Storm Duration, Td---------/ Tc= 10.00 minutes I = 5.500 in/hr Q = 50.98 cfs Required Storage . -- 49,691 cu.ft. Return Freq: 10 yr C adj.factor: 1.00 Area (ac): 11.14 Weighted C: 0.83 Adjusted C: 0.83 Td= 30 minutes I = 3.050 in/hr Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:13:10 06-28-1995 Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 **** Modified Rational Hydrograph ***** Weighted C = 0.832 Area= 11.140 acres Tc = 10.00 minutes Adjusted C = 0.832 Td= 30.00 min. I= 3.05 in/hr Qp= 28.27 cfs RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: POST10 .HYD HYDROGRAPH FOR SPECIFIED DURATION = 30.00 min. For the 10 Year Storm Time Time increment = 1.00 Minutes Minutes Time on left represents time for first Q in each row. -------- --------------------------------------------------------------- 0.00 0.00 2.83 5.65 8.48 11.31 14.14 16.96 7.00 19.79 22.62 25.45 28.27 28.27 28.27 28.27 14.00 28.27 28.27 28.27 28.27 28.27 28.27 28.27 21.00 28.27 28.27 28.27 28.27 28.27 28.27 28.27 28.00 28.27 28.27 28.27 25.45 22.62 19.79 16.96 35.00 14.14 11.31 8.48 5.65 2.83 0.00 Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:13:10 06-28-1995 F L O W c f s MODIFIED RATIONAL METHOD ---- Graphical Summary for Specified Storm Duration ---- First peak outflow point assumed to occur at inflow recession leg. Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 ********************************************************************** * RETURN FREQUENCY: 100 yr I Allowable Outflow: 1.00 cfs * 'C' Adjustment: 1.250 Required Storage: 87,029 cu.ft. *--------------------------------------------------------------------* * Peak Inflow: 49.02 cfs Inflow .HYD stored: POST100 .HYD ********************************************************************** Td = 30 minutes I Return Freq: 100 yr /--------- Specified Storm Duration, Td---------/ C adj.factor: 1.25 Tc= 10.00 minutes I = 7.800 in/hr Area (ac): 11.14 . Q = 86.89 cfs Weighted C: 0.83 ,I Adjusted C: 1.00 . I . Required Storage . -- 87,029 cu.ft. Td= 30 minutes I = 4.400 in/hr x x x x x x x x x x x x x x x x x x Q= 49.02 cfs x x o Q= 1.00 cfs x o x (Allow.Outflow) x o x o NOT TO SCALE x x o o x -----------------------------------------------------I ------------ 39.80 minutes Quick TR-55 Ver.5.44 S/N:1315460020 Executed: 15:13:10 06-28-1995 Verify Detention Basin Size Corporate Hangar Site Preparation Delta Project No. VA 9439 **** Modified Rational Hydrograph ***** Weighted C = 0.832 Area= 11.140 acres Tc = 10.00 minutes Adjusted C = 1.000 Td= 30.00 min. I= 4.40 in/hr Qp= 49.02 cfs RETURN FREQUENCY: 100 year storm Adj.factor = 1.25 Output file: POST100 .HYD HYDROGRAPH FOR SPECIFIED DURATION = 30.00 min. For the 100 Year Storm Time Time increment = 1.00 Minutes Minutes Time on left represents time for first Q in each row. -------- --------------------------------------------------------------- 0.00 0.00 4.90 9.80 14.70 19.61 24.51 29.41 7.00 34.31 39.21 44.11 49.02 49.02 49.02 49.02 14.00 49.02 49.02 49.02 49.02 49.02 49.02 49.02 21.00 49.02 49.02 49.02 49.02 49.02 49.02 49.02 28.00 49.02 49.02 49.02 44.11 39.21 34.31 29.41 35.00 24.51 19.61 14.70 9.80 4.90 0.00 POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:01 Page 1 Return Freq: 2 years *************************************** * * Corporate Hangar Site Preparation * Modified Detention Basin Design * Winchester Regional Airport * Delta Project No. VA 9439 *************************************** Inflow Hydrograph: a:\POST2 .HYD Rating Table file: a:\9439 .PND ----INITIAL CONDITIONS ---- Elevation = 698.62 ft Outflow = 0.00 cfs Storage = 0 cu-ft GIVEN POND DATA ELEVATION OUTFLOW STORAGE (ft) (cfs) (cu-ft) 698.62 0.0 0 699.12 0.9 210 699.62 2.9 1,154 700.12 5.0 3,145 700.62 6.3 5,647 701.12 7.0 81348 701.62 7.7 11,268 702.12 8.3 14,420 702.62 9.0 17,806 703.12 9.6 21,429 703.62 10.2 25,307 704.12 10.7 29,452 704.62 11.1 331860 705.12 11.6 38,535 705.62 12.0 431488 706.12 16.3 48,728 706.62 58.2 54,250 707.00 ------------------------------ 106.1 58,637 INTERMEDIATE ROUTING COMPUTATIONS 2S/t 2S/t + 0 (cfs) (cfs) 0.0 0.0 7.0 7.9 38.5 41.4 104.8 109.8 188.2 194.5 278.2 285.2 375.5 383.2 480.6 488.9 593.4 602.4 714.2 723.8 843.4 853.6 981.5 992.2 1128.4 1139.5 1284.2 1295.8 1449.3 1461.3 1624.0 1640.3 1808.0 1866.2 1954.2 -------------------------- 2060.3 Time increment (t) = 1.0 min. POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:01 Pond File: a:\9439 .PND Inflow Hydrograph: a:\POST2 .HYD Outflow Hydrograph: a:\OUT2 .HYD INFLOW HYDROGRAPH TIME INFLOW (min) -------- (cfs) --------- 0.0 0.00 1.0 1.95 2.0 3.89 3.0 5.84 4.0 7.79 5.0 9.73 6.0 11.68 7.0 13.63 8.0 15.57 9.0 17.52 10.0 19.47 11.0 19.47 12.0 19.47' 13.0 19.47 14.0 19.471 15.0 19.47 16.0 19.47 17.0 19.47I 18.0 19.47 19.0 19.47, 20.0 19.47 21.0 19.47 22.0 19.47 23.0 19.47 24.0 19.47 25.0 19.47 26.0 19.47 27.0 19.47 28.0 19.47 29.0 19.47 30.0 19.47 31.0 17.52 32.0 15.57 33.0 13.63 34.0 11.68 35.0 9.73 36.0 7.79 37.0 5.84 38.0 3.89 39.0 1.95 40.0 ----------------- 0.00 Page 2 Return Freq: 2 years ROUTING COMPUTATIONS I1+I2 2S/t - O 2S/t + O OUTFLOW ELEVATION (cfs) --------- (cfs) ------------ (cfs) ----------- (cfs) --------- (ft) --------- ----- 0.0 0.0 0.00 698.62 2.0 1.5 2.0 0.22 698.74 5.8 5.7 7.3 0.84 699.08 9.7 12.7 15.4 1.35 699.23 13.6 22.3 26.3 2.00 699.40 17.5 34.2 39.9 2.81 699.60 21.4 49.0 55.6 3.34 699.72 25.3 66.5 74.3 3.91 699.86 29.2 86.5 95.7 4.57 700.02 33.1 109.3 119.6 5.15 700.18 37.0 135.2 146.3 5.56 700.34 38.9 162.2 174.1 5.99 700.50 38.9 188.4 201.1 6.35 700.66 38.9 214.2 227.3 6.55 700.80 38.9 239.7 253.2 6.75 700.94 38.9 264.7 278.6 6.95 701.08 38.9 289.4 303.6 7.13 701.21 38.9 313.7 328.3 7.31 701.34 38.9 337.7 352.6 7.48 701.46 38.9 361.3 376.6 7.65 701.59 38.9 384.7 400.2 7.80 701.70 38.9 407.7 423.6 7.93 701.81 38.9 430.6 446.7 8.06 701.92 38.9 453.1 469.5 8.19 702.03 38.9 475.4 492.1 8.32 702.13 38.9 497.4 514.4 8.46 702.23 38.9 519.2 536.4 8.59 702.33 38.9 540.7 558.1 8.73 702.43 38.9 561.9 579.6 8.86 702.52 38.9 582.9 600.8 8.99 702.61 38.9 603.6 621.8 9.10 702.70 37.0 622.2 640.6 9.19 702.78 33.1 636.8 655.3 9.26 702.84 29.2 647.4 666.0 9.31 702.88 25.3 654.0 672.7 9.35 702.91 21.4 656.7 675.4 9.36 702.92 17.5 655.5 674.2 9.35 702.92 13.6 650.4 669.1 9.33 702.89 9.7 641.6 660.2 9.29 702.86 5.8 629.0 647.4 9.22 702.81 2.0 ------------------------------------------------------ 612.7 630.9 9.14 702.74 POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:01 Page 3 Return Freq: 2 years ****************** SUMMARY OF ROUTING COMPUTATIONS ****************** Pond File: a:\9439 .PND Inflow Hydrograph: a:\POST2 .HYD Outflow Hydrograph: a:\OUT2 .HYD Starting Pond W.S. Elevation = 698.62 ft ***** Summary of Peak Outflow and Peak Elevation ***** Peak Inflow = 19.47 cfs Peak Outflow = 9.36 cfs Peak Elevation = 702.92 ft ***** Summary of Approximate Peak Storage ***** Initial Storage = 0 cu-ft Peak Storage From Storm = 19,985 cu-ft --------------- Total Storage in Pond = 19,985cu-ft POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:03 Page 1 Return Freq: 10 years *************************************** * Corporate Hangar Site Preparation * Modified Detention Basin Design * Winchester Regional Airport * Delta Project No. VA 9439 *************************************** Inflow Hydrograph: a:\POST10 .HYD Rating Table file: a:\9439 .PND ----INITIAL CONDITIONS ---- Elevation = 698.62 ft Outflow = 0.00 cfs Storage = 0 cu-ft GIVEN POND DATA ELEVATION OUTFLOW STORAGE (ft) --------- (cfs) --------- (cu-ft) ---------- 698.62 0.0 0 699.12 0.9 210 699.62 2.9 1,154 700.12 5.0 3,145 700.62 6.3 5,647 701.12 7.0 8,348 701.62 7.7 11,268 702.12 8.3 14,420 702.62 9.0 17,806 703.12 9.6 21,429 703.62 10.2 251307 704.12 10.7 29,452 704.62 11.1 33,860 705.12 11.6 38,535 705.62 12.0 431488 706.12 16.3 48,728 706.62 58.2 54,250 707.00 ------------------------------ 106.1 58,637 INTERMEDIATE ROUTING COMPUTATIONS 2S/t 2S/t + 0 (cfs) ------------ (cfs) ------------- 0.0 0.0 7.0 7.9 38.5 41.4 104.8 109.8 188.2 194.5 278.2 285.2 375.5 383.2 480.6 488.9 593.4 602.4 714.2 723.8 843.4 853.6 981.5 992.2 1128.4 1139.5 1284.2 1295.8 1449.3 1461.3 1624.0 1640.3 1808.0 1866.2 1954.2 -------------------------- 2060.3 Time increment (t) = 1.0 min. POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:03 Pond File: a:\9439 .PND Inflow Hydrograph: a:\POST10 .HYD Outflow Hydrograph: a:\OUT10 .HYD INFLOW HYDROGRAPH TIME INFLOW (min) -------- (cfs) --------- 0.0 0.00 1.0 2.83 2.0 5.65 3.0 8.48 4.0 11.31 5.0 14.14 6.0 16.96 7.0 19.79 8.0 22.62 9.0 25.45 10.0 28.27 11.0 28.27 12.0 28.27 13.0 28.27 14.0 28.27 15.0 28.27 16.0 28.27 17.0 28.27 18.0 28.27 19.0 28.27 20.0 28.27 21.0 28.27 22.0 28.27 23.0 28.27 24.0 28.27 25.0 28.27 26.0 28.27 27.0 28.27 28.0 28.27 29.0 28.27 30.0 28.27 31.0 25.45 32.0 22.62 33.0 19.79 34.0 16.96 35.0 14.14 36.0 11.31 37.0 8.48 38.0 5.65 39.0 2.83 40.0 ----------------- 0.00 Page 2 Return Freq: 10 years ROUTING COMPUTATIONS I1+I2 2S/t - O 2S/t + O OUTFLOW ELEVATION (cfs) --------- (cfs) ------------ (cfs) ----------- (cfs) --------- (ft) --------- ----- 0.0 0.0 0.00 698.62 2.8 2.2 2.8 0.32 698.80 8.5 8.5 10.7 1.06 699.16 14.1 19.1 22.7 1.78 699.34 19.8 33.4 38.9 2.75 699.58 25.5 52.0 58.8 3.44 699.75 31.1 74.7 83.1 4.18 699.92 36.8 101.4 111.5 5.03 700.13 42.4 132.8 143.8 5.52 700.32 48.1 168.7 180.8 6.09 700.54 53.7 209.3 222.4 6.52 700.77 56.5 252.2 265.9 6.85 701.01 56.5 294.4 308.7 7.17 701.24 56.5 336.0 350.9 7.47 701.46 56.5 377.0 392.5 7.75 701.66 56.5 417.6 433.6 7.99 701.86 56.5 457.7 474.1 8.22 702.05 56.5 497.3 514.2 8.46 702.23 56.5 536.5 553.9 8.70 702.41 56.5 575.1 593.0 8.94 702.58 56.5 613.4 631.7 9.14 702.74 56.5 651.2 669.9 9.33 702.90 56.5 688.7 707.8 9.52 703.05 56.5 725.9 745.3 9.70 703.20 56.5 762.7 782.4 9.87 703.35 56.5 799.1 819.2 10.04 703.49 56.5 835.3 855.7 10.21 703.63 56.5 871.1 891.8 10.34 703.76 56.5 906.7 927.7 10.47 703.89 56.5 942.1 963.3 10.60 704.02 56.5 977.2 998.6 10.72 704.14 53.7 1009.3 1030.9 10.81 704.25 48.1 1035.6 1057.4 10.88 704.34 42.4 1056.2 1078.0 10.93 704.41 36.8 1071.0 1092.9 10.97 704.46 31.1 1080.1 1102.1 11.00 704.49 25.5 1083.5 1105.5 11.01 704.50 19.8 1081.3 1103.3 11.00 704.50 14.1 1073.5 1095.4 10.98 704.47 8.5 1060.1 1081.9 10.94 704.42 2.8 ------------------------------------------------------ 1041.1 1062.9 10.89 704.36 POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:03 Page 3 Return Freq: 10 years ****************** SUMMARY OF ROUTING COMPUTATIONS ****************** Pond File: a:\9439 .PND Inflow Hydrograph: a:\POST10 .HYD Outflow Hydrograph: a:\OUT10 .HYD Starting Pond W.S. Elevation = 698.62 ft ***** Summary of Peak Outflow and Peak Elevation ***** Peak Inflow = 28.27 cfs Peak Outflow = 11.01 cfs Peak Elevation = 704.50 ft ***** Summary of Approximate Peak Storage ***** Initial Storage = 0 cu-ft Peak Storage From Storm = 32,842 cu-ft --------------- Total Storage in Pond = 32,842cu-ft POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:05 Page 1 Return Freq: 100 years *************************************** * * * Corporate Hangar Site Preparation * Modified Detention Basin Design * Winchester Regional Airport * Delta Project No. VA 9439 * * *************************************** Inflow Hydrograph: a:\POST100 .HYD Rating Table file: a:\9439 .PND ----INITIAL CONDITIONS ---- Elevation = 698.62 ft Outflow = 0.00 cfs Storage = 0 cu-ft GIVEN POND DATA ELEVATION OUTFLOW STORAGE (ft) --------- (cfs) --------- (cu-ft) ---------- 698.62 0.0 0 699.12 0.9 210 699.62 2.9 1,154 700.12 5.0 3,145 700.62 6.3 5,647 701.12 7.0 8,348 701.62 7.7 11,268 702.12 8.3 14,420 702.62 9.0 17,806 703.12 9.6 21,429 703.62 10.2 25,307 704.12 10.7 29,452 704.62 11.1 33,860 705.12 11.6 38,535 705.62 12.0 43,488 706.12 16.3 48,728 706.62 58.2 541250 707.00 ------------------------------ 106.1 581637 INTERMEDIATE ROUTING COMPUTATIONS 2S/t 2S/t + 0 (cfs) ------------ (cfs) ------------- 0.0 0.0 7.0 7.9 38.5 41.4 104.8 109.8 188.2 194.5 278.2 285.2 375.5 383.2 480.6 488.9 593.4 602.4 714.2 723.8 843.4 853.6 981.5 992.2 1128.4 1139.5 1284.2 1295.8 1449.3 1461.3 1624.0 1640.3 1808.0 1866.2 1954.2 -------------------------- 2060.3 Time increment (t) = 1.0 min. POND-2 Version: 5.13 S/N: 1220510270 EXECUTED: 06-28-1995 15:14:05 Pond File: a:\9439 .PND Inflow Hydrograph: a:\POST100 .HYD Outflow Hydrograph: a:\OUT100 .HYD INFLOW HYDROGRAPH TIME INFLOW (min) -------- (cfs) --------- 0.0 0.00 1.0 4.90 2.0 9.80 3.0 14.70 4.0 19.61 5.0 24.51 6.0 29.41 7.0 34.31 8.0 39.21 9.0 44.11 10.0 49.02 11.0 49.02 12.0 49.02 13.0 49.02 14.0 49.02 15.0 49.02 16.0 49.02 17.0 49.02 18.0 49.02 19.0 49.02 20.0 49.02 21.0 49.02 22.0 49.02 23.0 49.02 24.0 49.02 25.0 49.02 26.0 49.02 27.0 49.02 28.0 49.02 29.0 49.02 30.0 49.02 31.0 44.11 32.0 39.21 33.0 34.31 34.0 29.41 35.0 24.51 36.0 19.61 37.0 14.70 38.0 9.80 39.0 4.90 40.0 ----------------- 0.00 Page 2 Return Freq: 100 years ROUTING COMPUTATIONS I1+I2 2S/t - O 2S/t + O OUTFLOW ELEVATION (cfs) --------- (cfs) ------------ (cfs) ----------- (cfs) --------- (ft) --------- ----- 0.0 0.0 0.00 698.62 4.9 3.8 4.9 0.56 698.93 14.7 15.4 18.5 1.53 699.28 24.5 34.3 39.9 2.81 699.60 34.3 61.1 68.6 3.74 699.82 44.1 95.5 105.3 4.86 700.09 53.9 138.2 149.5 5.61 700.35 63.7 189.2 202.0 6.36 700.66 73.5 249.1 262.8 6.83 701.00 83.3 317.8 332.4 7.34 701.36 93.1 395.2 410.9 7.86 701.75 98.0 476.6 493.2 8.33 702.14 98.0 556.9 574.6 8.83 702.50 98.0 636.5 655.0 9.26 702.84 98.0 715.2 734.5 9.65 703.16 98.0 793.2 813.2 10.01 703.46 98.0 870.6 891.2 10.34 703.76 98.0 947.4 968.6 10.61 704.03 98.0 1023.7 1045.4 10.84 704.30 98.0 1099.7 1121.8 11.05 704.56 98.0 1175.1 1197.7 11.29 704.81 98.0 1250.1 1273.2 11.53 705.05 98.0 1324.7 1348.2 11.73 705.28 98.0 1398.9 1422.8 11.91 705.50 98.0 1471.3 1497.0 12.86 705.72 98.0 1540.1 1569.3 14.60 705.92 98.0 1605.7 1638.2 16.25 706.11 98.0 1647.6 1703.7 28.07 706.26 98.0 1673.9 1745.6 35.84 706.35 98.0 1690.5 1772.0 40.73 706.41 98.0 1701.0 1788.6 43.80 706.45 93.1 1704.4 1794.1 44.83 706.46 83.3 1700.4 1787.7 43.65 706.45 73.5 1691.8 1774.0 41.10 706.42 63.7 1680.1 1755.5 37.67 706.38 53.9 1666.7 1734.1 33.70 706.33 44.1 1652.0 1710.8 29.38 706.28 34.3 1636.6 1686.3 24.85 706.22 24.5 1620.8 1661.1 20.17 706.17 14.7 1603.1 1635.5 16.19 706.11 4.9 ------------------------------------------------------ 1577.0 1608.0 15.53 706.03 POND-2 Version: 5.13 SIN: 1220510270 EXECUTED: 06-28-1995 15:14:05 Page 3 Return Freq: 100 years ****************** SUMMARY OF ROUTING COMPUTATIONS ****************** Pond File: a:\9439 .PND Inflow Hydrograph: a:\POST100 .HYD Outflow Hydrograph: a:\OUT100 .HYD Starting Pond W.S. Elevation = 698.62 ft ***** Summary of Peak Outflow and Peak Elevation ***** Peak Inflow = 49.02 cfs Peak Outflow = 44.83 cfs Peak Elevation = 706.46 ft ***** Summary of Approximate Peak Storage ***** Initial Storage = 0 cu-ft Peak Storage From Storm = 52,488 cu-ft --------------- Total Storage in Pond = 52,488cu-ft