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Home My WebLink About21-21 Site Plan SITE PLANKOKV Hangars - SE SideTax Parcel 64-5-1A, 64-A-79, 64-5-3AShawnee DistrictFrederick County, VAAPPROVED BY FREDERICK COUNTY ZONING ADMINISTRATORTITLE SHEET 1LOCAL UTILITY SERVICE PROVIDERSWATER AND SEWERFREDERICK WATER315 TASKER ROADSTEPHENS CITY, VA 22655540.868.1061ELECTRIC SERVICESHENANDOAH VALLEY ELECTRIC COOP3463 VALLEY PIKEWINCHESTER, VA 22602540-450-0111TELEPHONE SERVICEVERIZON404 HILLANDALE LANEWINCHESTER, VA 22602540.665.3153CABLE SERVICECOMCAST COMMUNICATIONS195 RAINVILLE ROADWINCHESTER, VA 22602NATURAL GAS SERVICEWASHINGTON GASP. O. BOX 2400WINCHESTER, VA 22604540.869.1111PLAN VALID FOR FIVE YEARS FROM APPROVAL DATEPROJECTLOCATIONSCALE 1" = 2000'DATECALL BEFORE YOU DIGCALL 811 FROM YOU CELL PHONE OR 1-800-552-7001FROM A LAND LINE.SECTION 56-265.17 OF THE CODE OF VA REQUIRESTHAT YOU PROVIDE THREE WORKING DAYS NOTICETO UTILITY OWNERS BEFORE YOU EXCAVATE, DRILLOR BAST.103 HEATH COURTWINCHESTER, VA 22602V 540.686.7373 F 540.301.1100STOWE ENGINEERING, PLCPREPARED BYDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21LAND OWNERWINCHESTER REGIONAL AIRPORT491 AIRPORT ROADWINCHESTER, VA 22602540.662.5786DEVELOPERADSURGO DEVELOPMENT CORP.18915 LINCOLN ROADPURCELLVILLE, VA 20132800.610.9005CONTRACTORTMG CONSTRUCTION CORP18915 LINCOLN ROADPURCELLVILLE, VA 20132800.610.9005ENGINEERSTOWE ENGINEERING, PLC103 HEATH COURTWINCHESTER, VA 22602540.686.7373ISSUE DATE: DECEMBER 15, 2021SITE PLAN #21-21 GENERAL NOTES1.THE CONTRACTOR SHALL FURNISH ALL MATERIAL, LABOR AND EQUIPMENT AND PERFORM ALL WORK, INCLUDING RESTORATION, OF ALL IMPROVEMENTS SHOWN OR IMPLIED ASNECESSARY FOR THE COMPLETED PROJECT READY FOR USE. UNLESS OTHERWISE NOTED, SPECIFICATIONS FOR ALL WORK TO BE IN ACCORDANCE WITH APPLICABLE STANDARDS ANDCONSTRUCTION SPECIFICATIONS INCLUDING BUT NOT LIMITED TO VDOT ROAD AND BRIDGE STANDARDS, VDOT ROAD AND BRIDGE SPECIFICATIONS, AMERICAN WATER WORKSASSOCIATION STANDARDS, AND FREDERICK WATER STANDARDS AND SPECIFICATIONS.2. ALL CONSTRUCTION SHALL COMPLY WITH THE LATEST U.S. DEPARTMENT OF LABOR, OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA), AND VIRGINIA OCCUPATIONALSAFETY & HEALTH (VOSH) RULES AND REGULATIONS.3. THE CONTRACTOR SHALL COMPLY WITH TITLE 59.1, CHAPTER 30 SECTION 406, ET. SEQ. OF THE CODE OF VIRGINIA (OVERHEAD HIGH VOLTAGE LINES SAFETY ACT).4. THE CONTRACTOR SHALL COMPLY WITH TITLE 56, CHAPTER 10.3, SECTION 265, ET. SEQ. OF THE CODE OF VIRGINIA (UNDERGROUND UTILITY DAMAGE PREVENTION ACT).5. ACCESS FOR EMERGENCY, SERVICE, AND UTILITY MAINTENANCE VEHICLES SHALL BE MAINTAINED.6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONSTRUCTION SURVEYING STAKE OUT.7. THE CONTRACTOR WILL PROVIDE THE MATERIALS TESTING FOR THE PROJECT.8. THE ENGINEER HAS ATTEMPTED TO SHOW ALL SUBSURFACE UTILITIES. HOWEVER, SUCH MAY EXIST THAT ARE NOT SHOWN. THE CONTRACTOR SHALL EXERCISE CARE IN THIS WORK SOAS TO AVOID DAMAGE TO ANY UTILITIES. ANY DAMAGE SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. THE CONTRACTOR SHALL NOTIFY MISS UTILITY OF VIRGINIA AT LEAST 72HOURS PRIOR TO EXCAVATING.9. IT IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO LOCATE AND IDENTIFY UTILITY FACILITIES OR ITEMS THAT MAY BE IN CONFLICT WITH THE PROPOSED CONSTRUCTION ACTIVITY.APPROVAL OF THESE PLANS DOES NOT INDEMNIFY THE CONTRACTOR FROM THIS RESPONSIBILITY.10. ACCESS AND UTILITY SERVICES FOR NEIGHBORING PROPERTIES IS TO BE MAINTAINED.11. THE EXISTING PAVEMENT AT ALL PAVEMENT TIE INS SHALL BE SAW CUT TO PROVIDE SMOOTH AND STRAIGHT PAVEMENT EDGES.12. ALL ROADWAY SURFACES OUTSIDE OF THE CONSTRUCTION LIMITS THAT ARE DAMAGED OR DISTURBED BY THE CONTRACTOR SHALL BE RESTORED BY THE CONTRACTOR TO THEIRPRE-CONSTRUCTION CONDITION.13. CONTRACTOR SHALL ENSURE ADEQUATE DRAINAGE IS ACHIEVED AND MAINTAINED ON THE SITE DURING AND AT THE END OF CONSTRUCTION.14. ANY UNUSUAL SUBSURFACE CONDITIONS (E.G., UNSUITABLE SOILS, SPRINGS, SINKHOLES, VOIDS, CAVES, ETC.) ENCOUNTERED DURING THE COURSE OF CONSTRUCTION SHALL BEIMMEDIATELY BROUGHT TO THE ATTENTION OF THE ENGINEER. WORK SHALL CEASE IN THAT VICINITY UNTIL AN ADEQUATE DESIGN CAN BE DETERMINED BY THE ENGINEER.15. ALL FILL AREAS, BORROW MATERIAL, FOOTERS, AND UNDERCUT AREAS SHALL BE INSPECTED AND APPROVED BY A THE GEOTECHNICAL ENGINEER PRIOR TO PLACEMENT OF FILL,AGGREGATE, OR CONCRETE.16. ALL SUBGRADE MATERIAL AND BACKFILL IN THE UTILITY/STORM SEWER TRENCHES, SHALL BE PLACED IN ACCORDANCE WITH THE DETAIL AND NOTES FOR ADS PIPE ON PLAN SHEET 23IN SIX (6) INCH LOOSE LIFTS AND COMPACTED TO 95% OF THEORETICAL MAXIMUM DENSITY AS DETERMINED BY ASTM D-698 STANDARD PROCTOR WITHIN PLUS OR MINUS 3% OFOPTIMUM MOISTURE OVER THE COMPLETE AREA/LENGTH. DENSITY TESTS SHALL BE PERFORMED BY THE SOILS TESTING FIRM.DRAINAGE NOTES1. "H" DIMENSIONS AND TOP ELEVATIONS SHOWN ON THE PLANS ARE MEASURED FROM THE INVERT OUT TO THE TOP OF THE STRUCTURE. "H" DIMENSIONS AND TOP ELEVATIONS AREAPPROXIMATE AND ARE PROVIDED FOR ESTIMATING PURPOSES. ACTUAL DIMENSIONS SHALL BE DETERMINED BY THE CONTRACTOR FROM FIELD CONDITIONS.2. ALL DRAINAGE STRUCTURES SHALL MEET THE REQUIREMENTS OF VDOT ROAD AND BRIDGE STANDARDS AND VDOT SPECIFICATIONS. SEE DETAILS IN THIS PLAN SET.3. ALL STRUCTURES SHALL HAVE VDOT STANDARD INVERT SHAPING IS-1. SEE DETAIL IN THIS PLAN SET.4. ALL STORM DRAINAGE PIPE SHALL BE REINFORCED CONCRETE PIPE CLASS III UNLESS OTHERWISE NOTED.GRADING NOTES1. ALL EXCAVATION IS UNCLASSIFIED.2. ALL BLASTING OPERATIONS SHALL BE PERFORMED IN ACCORDANCE WITH THE FIRE MARSHALL'S REQUIREMENTS. THE CONTRACTOR SHALL PROTECT THE OVERHEAD POWER LINES ANDTOWERS FROM FLY ROCK AND ITS ASSOCIATED DAMAGE.3. IF KARST FEATURES SUCH AS CAVES, DISAPPEARING STREAMS, OR LARGE SPRINGS ARE ENCOUNTERED DURING THE PROJECT, CONTACT WIL ONDORFF OF VA DCR (540-394-2552) TODOCUMENT AND MINIMIZE ADVERSE IMPACTS.WATER & SEWER NOTES1. THE PUBLIC WATER AND SEWER LINES ARE OWNED AND OPERATED BY FREDERICK WATER. ALL CONSTRUCTION, CONNECTIONS AND ACTIVITIES PERTAINING TO THE WATER AND SEWERLINES SHALL CONFORM TO THE REQUIREMENTS PRESCRIBED IN THE FREDERICK WATER STANDARDS AND SPECIFICATIONS WHICH CAN BE FOUND AThttps://www.frederickwater.com/sites/default/files/2021-02-16_final_standards_and_specifications.pdf2. MANHOLE RIMS, VALVE BOXES, ETC. SHALL BE ADJUSTED TO MATCH THE SURROUNDING FINISHED GRADE.3. THE CONTRACTOR SHALL COORDINATE WATER AND SEWER CONSTRUCTION WITH FREDERICK WATER.4. LOCATION MARKER REQUIREMENTS - WATER LINE LOCATION MARKERS SHALL BE SCOTCHMARK MID-RANGE MARKERS (WHEEL) PART NUMBER 1257 OR APPROVED EQUAL. SEWER LINE LOCATORMARKERS SHALL BE SCOTCHMARK MID-RANGE MARKERS (WHEEL) PART NUMBER 1258 OR APPROVED EQUAL.SURVEY NOTES1. THIS DESIGN IS BASED ON TOPOGRAPHIC AND PROPERTY SURVEY DATA PROVIDED BY GREENWAY ENGINEERING, Inc., WINCHESTER, VA.2. TOPOGRAPHIC INFORMATION SHOWN HEREON IS BASED ON AN ACTUAL FIELD SURVEY. BOUNDARY INFORMATION IS BASED INFORMATION PROVIDED BY DELTA AIRPORT CONSULTANTS,HARRISBURG, PA.3. ANY UNDERGROUND UTILITIES SHOWN HAVE BEEN LOCATED FROM FIELD SURVEY INFORMATION AND EXISTING DRAWINGS. THE SURVEYOR MAKES NO GUARANTEES THAT THEUNDERGROUND UTILITIES SHOWN COMPRISE ALL SUCH UTILITIES IN THE AREA, EITHER IN SERVICE OR ABANDONED. THE SURVEYOR FURTHER DOES NOT WARRANT THAT THEUNDERGROUND UTILITIES SHOWN ARE IN THE EXACT LOCATION INDICATED ALTHOUGH HE DOES CERTIFY THAT THEY ARE LOCATED AS ACCURATELY AS POSSIBLE FROM INFORMATIONAVAILABLE.SIGN NOTES1. THERE IS NOT A PERMANENT SIGN PROPOSED WITH THIS PROJECT. BUILDING MOUNTED SIGNS AND INTERNAL DIRECTION SIGNS WILL BE UTILIZED.OUTDOOR LIGHTING NOTES1. OUTDOOR LIGHTING WILL BE INSTALLED IN ACCORDANCE WITH FREDERICK COUNTY REQUIREMENTS AND THESE PLANS. ADDITIONAL DETAILS ARE PROVIDED ON SHEET 25 OF THIS PLANSET.STORMWATER MANAGEMENT NOTES1. THIS PROJECT INCREASES THE IMPERVIOUS AREA OF THE SITE. STORMWATER QUALITY WILL BE MITIGATED THROUGH THE PURCHASE OF NUTRIENT CREDITS FROM A DEQ APPROVEDSOURCE. STORMWATER QUANTITY WILL BE MANAGED WITH ONSITE SYSTEMS.LANDSCAPE NOTES1. THIS PROJECT IS WITHIN THE AIRSIDE OF THE WINCHESTER REGIONAL AIRPORT AND IS SUBJECT TO TERMS OF CONDITIONS OF GRANTS FROM THE FEDERAL AVIATION ADMINISTRATION.AS SUCH, LANDSCAPING IS NOT BEING PROVIDED IN ORDER TO SATISFY FAA REQUIREMENTS.INSPECTIONS NOTES1. BUILDING CONSTRUCTION WILL BE IBC TYPE 2b2. USE IS S1 - GROUP III (AIRCRAFT STORAGE ONLY)3. CONDOMINIUMS LESS THAN 12,000 SF WILL BE SEPERATED BY A 2 HR FIRE WALL4. THERE WILL BE NO HAZARDOUS OPERATIONS OR RESIDENTIAL USES.5. PER NFPA 409 8.8.1.1 THESE HANGERS MUST COMPLY WITH STANDARD HEIGHT AND AREA REQUIREMENTS AND WOULD NOT BE REQUIRED TO BE SPRINKLED GENERAL NOTES 2LEGENDEXISTING FEATURESPROPOSED FEATURESINDEX COUNTOURCOUNTOURWATER METERWATER LINESANITAERY MANHOLESANITAR PIPEFENCEGAS LINEOVERHEAD UTILITIESPOLETREETREE LINEGRAVELPAVEMENTEPROPOSED INDEX CONTOURPROPOSED CONTOURWATER LINEWATER METERSANITARY MANHOLESANITARY PIPESANITARY LATERALPAVEMENTLIMITS OF CONSTRUCTIONSX8700860DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21WINCHESTER REGIONAL AIRPORT NOTESGENERAL:1.THE PROJECT WAS ISSUED AN ENVIRONMENTAL CATEGORICAL EXCLUSION BY THE FEDERAL AVIATION ADMINISTRATION (FAA) ON MARCH 19, 2021.1. 2. THE PROJECT IS SUBJECT TO THE CONDITIONS OF FAA AIRSPACE STUDIES 2021-AEA-1577-NRA AND 2021-AEA-1597-NRA.2. THE CONTRACTOR SHALL COMPLY WITH THE REQUIREMENTS OF THE WINCHESTER REGIONAL AIRPORT AUTHORITY MINIMUM STANDARDS AND RULES AND REGULATIONS, AND ALL LOCAL, STATE, ANDFEDERAL LAWS AND/OR ORDINANCES THAT GOVERN AIRPORT OPERATIONS.3. A PRE-CONSTRUCTION MEETING WITH THE AIRPORT AUTHORITY IS REQUIRED PRIOR TO COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY.4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING (INCLUDING PAYMENT OF FEES) FOR ALL BONDS, PERMITS, LICENSES, ETC. REQUIRED BY LOCAL, STATE, AND FEDERAL AGENCIES.SECURITY:1. THE CONTRACTOR IS RESPONSIBLE FOR ENSURING THAT ALL OF ITS EMPLOYEES AND SUBCONTRACTOR EMPLOYEES ONLY USE AUTHORIZED ACCESS POINT(S). EMPLOYEES SHALL VERIFY THAT THE ACCESSPOINT(S) IS SECURE IMMEDIATELY AFTER USE. GATES THAT FAIL TO SECURE MUST BE IMMEDIATELY REPORTED TO THE AIRPORT AUTHORITY.2. THE CONTRACTOR SHALL ONLY USE HAUL ROUTE(S) DESIGNATED BY THE AIRPORT AUTHORITY.3. THE AIRPORT PERIMETER FENCE SHALL BE MAINTAINED ON A CONTINUOUS BASIS WITH ANY TEMPORARY OPENING BEING OBSERVED BY THE CONTRACTOR'S DESIGNATED EMPLOYEE. IF ORDERED BY THEAIRPORT AUTHORITY, THE CONTRACTOR MAY BE REQUIRED TO PROVIDE GATE GUARDS. ALL TEMPORARY OPENINGS AND CONSTRUCTION GATES SHALL BE SECURED AND LOCKED AT THE COMPLETION OFWORK EACH DAY.4. ALL CONTRACTOR VEHICLES OPERATING INSIDE THE SECURITY FENCE SHALL BE CLEARLY LABELED WITH THE CONTRACTOR'S COMPANY NAME VISIBLE FROM 200 FEET. THE COMPANY NAME SHALL BELABELED ON BOTH SIDES OF THE VEHICLE.OPERATIONS AND PHASING:1. THE CONTRACTOR SHALL MARK AND LIGHT AREAS UNDER CONSTRUCTION IN A MANNER ACCEPTABLE BY THE AIRPORT AUTHORITY. AIRCRAFT AND PUBLIC SAFETY AND ACCESS SHALL NOT BECOMPROMISED, AND PROPER SEPARATION SHALL BE MAINTAINED AT ALL TIMES. REFERENCE IS DIRECTED TO FAA ADVISORY CIRCULAR 150/5370-2, "OPERATIONAL SAFETY ON AIRPORT DURINGCONSTRUCTION". EQUIPMENT AND VEHICLES SHALL BE MARKED WITH YELLOW FLASHING DOME TYPE LIGHTS OR 3' X 3' ORANGE AND WHITE CHECKER FLAGS. YELLOW FLASHING DOME TYPE LIGHTS AREREQUIRED FOR NIGHTTIME OPERATIONS (IF AUTHORIZED).2. ALL CONTRACTOR PERSONNEL SHALL ARRIVE AT THE PROJECT IN COMPANY VEHICLES. ONLY AUTHORIZED VEHICLES WILL BE ALLOWED INSIDE THE AIRPORT SECURITY FENCE. AT THE END OF EACHWORKDAY, THE CONTRACTOR SHALL POSITION ALL EQUIPMENT, TOOLS, MATERIAL, ETC. IN THE APPROVED CONTRACTOR'S STAGING AREA UNLESS OTHERWISE REQUESTED BY THE CONTRACTOR ANDAPPROVED BY THE AIRPORT AUTHORITY.3. THE CONTRACTOR SHALL BE REQUIRED TO PROVIDE AND PLACE CLOSED MARKERS AND AVIATION BARRICADES TO DENOTE PROJECT BOUNDARIES. MULTIPLE RELOCATIONS OF THE CLOSED MARKERSSHALL BE CONSIDERED INCIDENTAL TO THE PROJECT. THE LOCATION OF THE CLOSED MARKERS AND BARRICADES SHALL BE ESTABLISHED IN ACCORDANCE TO GUIDANCE FROM THE AIRPORT AUTHORITY.4. NO EQUIPMENT OR PERSONNEL SHALL ENTER A TAXIWAY SAFETY AREA, RUNWAY, OR OTHER AREA OUTSIDE THE PROJECT LIMITS UNLESS PRIOR APPROVAL IS OBTAINED FROM THE AIRPORT AUTHORITY.5. THE CONTRACTOR MAY BE REQUESTED TO MONITOR THE COMMON TRAFFIC ADVISORY FREQUENCY (122.7) WHILE WORK IS IN PROGRESS.6. UPON NOTIFICATION FROM THE AIRPORT AUTHORITY OR OFFICIAL PUBLIC SAFETY REPRESENTATIVE, THE CONTRACTOR SHALL IMMEDIATELY CLEAR THE PROJECT SITE IN THE EVENT OF AN AIRCRAFTEMERGENCY. SURROUNDING PROPERTIES, ROADS, AND LAND USESSURROUNDING PROPERTIES OWNERS, ZONING & ROADS 3DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21Andrew KotlowskiundevelopedZoning: M1Daggett Enterprises, llcCommercialZoning: M1J E Oberman, LLCCommercialZoning: M1Andrew KotlowskiundevelopedZoning: M1Andrew KotlowskiundevelopedZoning: M1Winchester Regional Airport AuthAirport opsZoning: RAWinchester Regional Airport AuthAirport opsZoning: RAWinchester Regional Airport AuthAirport opsZoning: RAProposedHangars PROPERTY BOUNDARY 4DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21Note: A metes and bounds description of the overall property is not available. The property is anassembly of individual land purchases made over an extended period.Property boundary and map provided by Delta Airport Consultants, Harrisburg, PAPROPERTY BOUNDARYPROPERTY BOUNDARYPROJECT LOCATION337.7 ACRES AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE PROPERTY BOUNDARY &CHAIN LINK SECURITY FENCEEX. WATER MAINEX. SAN. SEWER FMEX. PAVED PARKING AREAEX. PAVED INTERNAL ROADEX. SECURITY GATETO ROUTE 522TO ROUTE 50/17BRLBRLBRLEX. DUCT BANKEX. WATER MAINin v i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 EX. WATER AND SEWEREASEMENT INST # 160003241EXISTING STORMWATER MNGT PONDEXISTING CONDITIONSDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/215 AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE EXISTING PAVEMENTTO BE DEMOLISHEDEXISTING PAVEMENT TO BEDEMOLISHED OR MILLED ASREQUIRED. SEE SHEET 10EX. AIRFIELD LIGHTS (TYP) - FIXTURE TOBE RELOCATED TO THE FRONT OFHANGAR 1 AT A SIMILAR HEIGHT ANDORIENTATION. SEE ELECTRICAL PLANEX. AIRFIELD LIGHTS (TYP) - FIXTURE TOBE RELOCATED TO THE FRONT OFHANGAR 2 AT A SIMILAR HEIGHT ANDORIENTATION. SEE ELECTRICAL PLANin v i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 EXISTING STORMWATER MNGT PONDDEMOLITION PLANDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/216 AB1.3%1.2%1.1% 1.0% 1.7% 1.6% 1.5% 1.3% 1.1% 0.9% 2.0%LOCLOCLOCLOCLOCLOCLOCLOCLOCLOC202134353637385455596061303363AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE BRLBRLBRLEX DOWNSTREAM PIPE TO BECLEANED OF ALL SILT AND DEBRIS.CG-2 CURBING TOBE PLACED IN EACHPARKING SPACEREPLACE INLET.SEE PROFILESHT 19 FOR INFO.60.0'30.5'20.95'152.73'13.26' in v i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 EXISTING STORMWATER MNGT PONDHATCH DENOTESAIRSIDE PAVEMENTSOLID PATTERN DENOTESLAND SIDE PAVEMENTEX. STORMWATER MNGT OUTFALLREMOVE 24" ES-1 END SECTIONINSTALL OUTFALL RISER. SEEDETAILS SHEETS 20 & 2110'18'45°16'20'22'Two-way Access AisleParkingBuilding Access Drivefor handicapped drop off HANGAR BUILDINGSITE PLANDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21NOTES1. AREAS OF EXITING PAVEMENT SHALL BE REMOVED FROMTHE AREA OF THE NEW PAVEMENT SECTION. ANY VOIDSRESULTING FROM THIS REMOVAL SHALL BE BACKFILLEDWITH VDOT AGGREGATE NO 21-A.2. JOINTS WHERE NEW PAVEMENT ABUTS EXISTING PAVEMENTSHALL BE SAW CUT TO PROVIDE A SMOOTH STRAIGHT EDGE.A 10' WIDE STRIP OF THE EXISTING PAVEMENT ADJACENT TOTHE JOINT SHALL BE MILLED TO A DEPTH EQUAL TO THETHICKNESS OF THE SURFACE COURSE, AND THE NEWSURFACE COURSE SHALL EXTEND THROUGH THIS MILLEDAREA.1.5" SM-9.5A2.5"BM-25A12" VDOT 21ACOMPACTED SUBGRADELAND SIDE FLEXIBLE ASPHALTPAVEMENT SECTIONAIR SIDE FLEXIBLE ASPHALT PAVEMENTSECTION7PARKING DETAILS01020ACCESSIBILITY NOTE1. Accessibility to individual hangars is provided inside the hangar. Vehicles will enter the hangar from the rearaccess to discharge or pick up handicapped passengers. NEW ELECT TRANSFORMERCONTRACTOR TO PROVIDECONC BASE. SEE DETAIL2 - 2" DIRICT BURYCONDUIT FOR COMM2 - 4" DIRECT BURYCONDUIT FOR ELECTRICALNEW ELEC TRANSFORMER.CONTRACTOR TO PROVIDE CONC BASE. SEE DETAILPROP GAS LINEPROP GAS LINEPROP GAS LINE6 GAS METERS5 GAS METERS2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HH2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HHAB1.3%1.2%1.1%1.0% 1.7% 1.6% 1.5% 1.3% 1.1% 0.9% 2.0%202134353637385455596061303363AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE EX DUCT BANK TO BELOWERED. SEE PROFILEEX DUCT BANK TO BELOWERED. SEE PROFILEEX. PULL BOXESTO BE LOWERED.SEE DETAIL SHT 9.EX. PULL BOXES TOBE LOWERED. SEEDETAIL SHT 9.EX. PULL BOXES TOBE LOWERED. SEEDETAIL SHT 9.EXISTING UNDERGROUND DUCT BANKTO BE LOWERED·EXISTING UNDERGROUND DUCT BANK ANDPULL BOXES ARE TO BE LOWERED TOPROVIDE NO LESS THAN 3 FT OF COVERFROM THE PROPOSED GROUND LINE.CONTRACTOR TO COORDINATE THIS WORKWITH THE UTILITY OWNERS, THEWINCHESTER REGIONAL AIRPORT ANDVERIZON.·SOME PORTIONS OF THE EXISTING DUCTBACK MAY BE ENCASED IN CONCRETE, AND AREPLACEMENT CONDUIT MAY BE REQUIRED.EX. GRADEPROPOSED GRADE3 FT MINVERIZON FIBER OPTIC CONDUITS EMPTY CONDUITS AIRPORT ELECTRIC CONDUIT AIRPORT ELECTRIC CONDUITS PROVIDE 4" OF ROCKDUST ON ALL SIDESOF CONDUITS (TYP)1.5' MIN (TYP)36" MIN COVERFINISHED GRADENOTE, ALL CONDUITS ARE 2" PVC. VIEWLOOKING NORTHPLACE METALLIC WARNINGTAPE OVER CONDUITSDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21DRY UTILITY PLAN05010004080 UNDERGROUND ELECTRIC & GAS SERVICE NOTES1. FOR CONDUITS BETWEEN THE TRANSFORMER AND THE BUILDING SEE THEELECTRICAL PLAN.2. TWO 4" SCHED 80 CONDUITS SHALL BE INSTALLED BY THE CONTRACTOR BETWEENTHE EXISTING SVEC TRANSFORMER AND THE PROPOSED TRANSFORMER WITHSWEEPING BENDS AND WITH 3 FT OF COVER. SVEC WILL INSTALL THECONDUCTORS.3. ALL CONDUITS SHALL HAVE MULE TAPE INSTALLED BY THE CONTRACTOR.4. THE 9' x 9' TRANSFORMER PAD SHALL BE PROVIDED BY THE CONTRACTOR. SEEDETAIL.5. THE CONTRACTOR SHALL INSTALL THE CONC PAD UNDER THE PROPOSED GASMETERS.6. THE CONTRACTOR SHALL OBTAIN ANY PERMITS REQUIRED FOR THIS WORK.8024CONDUIT BACKFILL DETAILNOTE: ALL CONDUIT LOWERING WORK IS TO BE PERFORMED UNDER THE DIRECTION OF THEUTILITY OWNER LOWER ALL CONDUITS INDUCT BANK AS REQUIRED TOMEET LOWERED GRADES ANDPROVIDE REQUIRED COVER.PROVIDE 4" A4 CONC APRON8.5' X 4.5' FLUSH WITH FINISHEDGRADE AND PULL BOX TOPS.EX. PULL BOX TOPS ANDCONC APRON (TBR)LOWERED PULL BOX TOPSAND NEW CONC APRONLOWERED 2" CONDUITSEXISTING 2" CONDUITSVERIZON FIBER OPTIC CONDUITSEMPTY CONDUITSAIRPORT ELECTRIC CONDUITAIRPORT ELECTRIC CONDUITSNOTE, ALL CONDUITS ARE 2" PVC. VIEWLOOKING NORTHPROVIDE 6" OF 21A AGG. OVERCOMPACTED BACKFILL.SITE & DRY UTILITY DETAILSDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/219DUCT BANK LOWERING SECTIONNOTE: ALL CONDUIT LOWERING WORK IS TO BE PERFORMED UNDER THE DIRECTION OF THE UTILITY OWNER024 NEW ELECT TRANSFORMERCONTRACTOR TO PROVIDECONC BASE. SEE DETAIL2 - 2" DIRICT BURYCONDUIT FOR COMM2 - 4" DIRECT BURYCONDUIT FOR ELECTRICALNEW ELEC TRANSFORMER.CONTRACTOR TO PROVIDE CONC BASE. SEE DETAILPROP GAS LINEPROP GAS LINEPROP GAS LINE6 GAS METERS5 GAS METERS2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HH2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HH1.3%1.2%1.1% 1.0% 1.7% 1.6% 1.5% 1.3% 1.1% 0.9% 2.0%LOCLOCLOCLOCLOCLOCLOCLOCLOCLOC202134353637385455596061303363AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE BRLBRLBRLNOTE: CONTOUR LINES AND SPOT ELEVATIONS REPRESENT THE FINISHED SURFACEin v i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 EXISTING STORMWATER MNGT PONDDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21GRADING PLAN 10 2 - 4" DIRECT BURYCONDUIT FOR ELECTRICALNEW ELEC TRANSFORMER.CONTRACTOR TO PROVIDE CONC BASE. SEE DETAILPROP GAS LINEPROP GAS LINEPROP GAS LINE6 GAS METERS5 GAS METERS2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HH2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HHABe-One SEWER PUMP REQD. MODEL DH071TOP =705.5INV. IN =701.08INV. OUT = 701.55BOTTOM = 698.08SEE DETAILS THIS SHEET.CONTRACTOR TO PROVIDE ELECTRIC SERVICE. MOUNTCONTROL PANEL TO BUILDING.WORK BY CONTRACTOR·DUAL 1-1/4" FORCE LATERAL (200 PSI)·COPPER TUBE SIZE POLYETHYLENETUBING·USE STAINLESS INSERTS WITH BRASSCOMPRESSION FITTINGS.·PROVIDE REDUNDANT CHECK VALVEBETWEEN PUMP AND FW EASEMENT·PROVIDE O-IL-WATER SEPARATORe-One SEWER PUMP REQD. MODEL DH071TOP =702.5INV. IN =698.83INV. OUT = 699.30BOTTOM = 695.83SEE DETAILS THIS SHEET.CONTRACTOR TO PROVIDE ELECTRIC SERVICE. MOUNTCONTROL PANEL TO BUILDING.WORK BY CONTRACTOR·DUAL 1-1/4" FORCE LATERAL (200 PSI)·COPPER TUBE SIZE POLYETHYLENETUBING·USE STAINLESS INSERTS WITH BRASSCOMPRESSION FITTINGS.·PROVIDE REDUNDANT CHECK VALVEBETWEEN PUMP AND FW EASEMENT·PROVIDE OIL-WATER SEPERATORAIRPORT ROADBRLBRLWORK BY FREDERICK WATER·TAP EXISTING 6" PVC FORCE MAIN·UP TO 10' OF 2" 200 PSI PE TUBING·INSTLL 2" BALL VALVE AND 2" STUBinv in - 691.50 24" RCP EXISTING STORMWATER MNGT PONDWORK BY FREDERICK WATER·TAP EXISTING 6" PVC FORCE MAIN·UP TO 10' OF 2" 200 PSI PE TUBING·INSTLL 2" BALL VALVE AND 2" STUBEX WATER AND SEWER EASEMENTINST # 160003241SANITARY SEWER PLAN WASTEWATER FLOW CALCULATIONSDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/2111 SANITARY SEWER PLANDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/2112NOTE:PUMP STATION IS PRIVATE ANDNOT OWNED OR MAINTAINED BYFREDERICK WATER. NEW ELECT TRANSFORMERCONTRACTOR TO PROVIDECONC BASE. SEE DETAIL2 - 2" DIRICT BURYCONDUIT FOR COMM2 - 4" DIRECT BURYCONDUIT FOR ELECTRICALNEW ELEC TRANSFORMER.CONTRACTOR TO PROVIDE CONC BASE. SEE DETAILPROP GAS LINEPROP GAS LINEPROP GAS LINE6 GAS METERS5 GAS METERS2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HH2 - 2" DIRICT BURYCONDUIT FOR COMMTO EX HHAB·FIRE HYDRANT ASSEMBLY·6" GATE VALVE·8" X 6" REDUCER·8" DIP CL 52 PIPE·BOLLARDS AS DIRECTED BY FW INSPECTOR1" WATER SERVICE LINESLEEVE MIN 20' WITHIN FWEASEMENT, 18" ABOVE FORCEMAIN OR PER FW INSPECTOR'SREQUIREMENTS.WORK BY FREDERICK WATER·TAP EXISTING 12" DIP WATER MAIN·INSTALL 1" SERVICE LINE TO METER BOX·INSTALL 34" WATER METERAIRPORT ROADTAILSPIN CIRCLE BRLBRLBRL·FIRE HYDRANT ASSEMBLY·6" GATE VALVE·8" X 6" REDUCER·8" DIP CL 52 PIPE·BOLLARDS AS DIRECTEDBY FW INSPECTOREXISTING STORMWORK BY FREDERICK WATER·TAP EXISTING 12" DIP WATER MAIN·INSTALL 1" SERVICE LINE TO METER BOX·INSTALL 34" WATER METER1" WATER SERVICE LINESLEEVE MIN 20' WITHIN FWEASEMENT, 18" ABOVE FORCEMAIN OR PER FW INSPECTOR'SREQUIREMENTS.FREDERICK WATER TO WET TAP EXISTING 12"DI WATER MAIN8" GATE VALVEFREDERICK WATER TO WET TAP EXISTING 12"DI WATER MAIN8" GATE VALVEPROP 20' FREDERICKWATER EASEMENTPROP 20' FREDERICKWATER EASEMENTFIRE HYDRANT ASSEMBLY, 1-6" GV, 1-8X6 REDUCER 0+57+50 0+00 +50 1+006756806856906957007057107156756806856906957007057107150+00 WET TAP TO EXISTING 12" DIP MAIN BY FW 8 "D I PADJ WATER MAIN TOPROVIDE 18" OF VERTICALCLEARANCE WITH EXUTILITIES4' MIN COVERSEWER SHALL BE UNDERWATER BY 18". IF THIS ISNOT PRACTICAL,CONTRACTOR SHALLREPORT FINDINGS TO THEENGINEER FORDEVELOPMENT OF ASOLUTION.WATER SERVICE PLAN WATER DEMAND CALCULATIONSDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21WATER LINE PROFILE - BUILDING 2 FIRE HYDRANT13 FIRE HYDRANT ASSEMBLY, 1-6" GV, 1-8X6 REDUCER 0+57+50 0+00 +50 1+006756806856906957007057107156756806856906957007057107150+00 WET TAP TO EXISTING 12" DIP MAIN BY FW 8 "D IPADJ WATER MAIN TOPROVIDE 18" OF VERTICALCLEARANCE WITH EXUTILITIES4' MIN COVERSEWER SHALL BE UNDERWATER BY 18". IF THIS ISNOT PRACTICAL,CONTRACTOR SHALLREPORT FINDINGS TO THEENGINEER FORDEVELOPMENT OF ASOLUTION.+502+00WATER SERVICE PLANDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21WATER LINE PROFILE - BLDG 2 FIRE HYDRANT13A EROSION & SEDIMENT CONTROL NARRATIVE Erosion and Sediment Control NarrativeProject DescriptionThis project consists of constructing aircraft hangar buildings and supporting site features. 1.9 acres of land will be disturbed with theconstruction of this project.Date of ConstructionConstruction is planned to begin the 4th quarter of 2021 and end in the 2nd quarter of 2022.Existing Site ConditionsThe site currently has a paved parking lot and a paved area for airplane parking.Adjacent PropertyThe project is located at the Winchester Regional Airportt. It is north of Airport Road, and is only adjacent to airport operations.Offsite AreasThere are no planned off-site borrow or disposal areas associated with this project.SoilsFor the project area, generalized soils data contained on the USDA Natural Resource Conservation Service's Web Soil Survey shows the projectarea wih 99.9% Blairton silt loam with 2-7% slopes, and 0.1% Clearbrook channery silt loam with 2 to 7 percent slopes.GeologyNo rock outcrops or karst features were observed.Critical Erosion AreasAreas where concentrated stormwater is discharging will be critical.Erosion and Sediment Control MeasuresUnless otherwise indicated, all vegetative and structural erosion and sediment control practices shall be constructed and maintained according tominimum standards and specifications of the Virginia Erosion and Sediment Control Handbook. The minimum standards of the handbook shall beadhered to unless otherwise waived or approved by a variance.CONSTRUCTION NARRATIVEThe work shall generally be carried out in the following sequence:PHASE 11. Hold pre-construction meeting on-site with the inspector. The Winchester inspector shall have 48 hours notice to schedule an on-sitepre-construction inspection following the issuance of a land disturbance permit. The certified responsible land disturber must attend thepre-construction meeting2. Install the construction entrance. Temporary Construction Entrance (3.02) installed at the entrance to the site to minimize mud carried ontothe roadway.3. Clearing and grubbing for sediment control and sediment trapping devices only. Silt Fence Barrier (3.05) is to be installed down-slope of workareas and around the on-site stockpile area to filter sediment-laden runoff from sheet flow as indicated on the plans.4. Construct and/or place sediment trapping and sediment control devices. The CRAFS corrugated retention and filtration system shall beconstructed first and shall retain the runoff from the site to allow sediment to settle out before runoff leaves the site.PHASE 21. Clear and grub the remainder of the site. Topsoil that is to be used in the final grading of grassed areas shall be stripped and stockpiled on sitefor later use. The excess topsoil shall be removed and disposed of by the contractor. All stockpiles shall be stabilized with seeding andsurrounded with silt fence.2. Rough grade the site.3. Storm drain structures and pipe shall be installed. Inlet protection (3.07) shall be installed as shown on the plans around inlets to filtersediment-laden runoff. The area shall be stabilized upon completion of grading.5. Final grading.6. Top Soiling (3.30) and Surface Roughening (3.29) shall be applied to all areas that will be seeded.7. Permanent Seeding (3.32) shall be applied as soon as the grading operations are completed.8. Remove erosion and sediment control measures within 30 days from when they are no longer needed and with approval of the inspector.Vegetative PracticesTemporary seeding (3.31) soil stabilization shall be applied to denuded areas within seven days after the final grading is complete on any portionof the site. Temporary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade but will remain dormantfor longer than 30 days, but less than one year. Permanent stabilization shall be applied to areas that are to be left dormant for more than oneyear.Stockpile areas shall be surrounded with silt fence and protected by mulch and/or temporary seeding immediately after grading.Diversion dike and temporary sediment trap embankments shall be compacted by machine, seeded and mulched (hay mulch or straw) fortemporary and/or permanent vegetative cover immediately after construction.Vegetative stabilization shall be uniform, mature enough to survive, and adequate to inhibit erosion. Any areas not meeting these requirementsshall be reseeded.Management PracticesConstruction will be carried out so that grading operations can begin and end as quickly as possible.Sediment trapping measures will be installed as the first step in grading. These measures will be seeded and mulched immediately followinginstallation.Temporary seeding or other stabilization will follow immediately after grading. Areas which are not to be disturbed will be clearly marked by flags,signs, etc. The job superintendent shall be responsible for the installation and maintenance of all erosion and sediment control practices.Maintenance of these measures throughout the project is critical to the effectiveness of the program. Devices listed herein are considered to beminimum erosion and sediment controls. Addition E&S measures may be necessary due to contractor phasing or other unforeseen conditions. It isthe contractor's responsibility to provide measures in addition to those shown in order to control erosion and contain sediment on the site. Allmeasures shall be installed in accordance with the Virginia Erosion and Sediment Control Handbook. After achieving adequate stabilization, thetemporary E&S controls will be cleaned up and removed.Permanent StabilizationAll areas disturbed by construction shall be stabilized with permanent seeding immediately following finish grading. Seeding shall be done withKentucky 31 Tall Fescue according to Std. & Spec. 3.32, PERMANENT SEEDING, of the handbook. Mulch (straw or fiber) will be installed over fillslopes which have been brought to final grade and have been seeded to protect the slopes from hill and gully erosion and to allow the seed togerminate properly will be used on relatively flat areas. In all seeding operations, seed, fertilizer, and lime will be applied before mulching.STORMWATER MANAGEMENTThis project increases the impervious area of the site. Stormwater quantity from Hangars 1 and 2 is being collected through a storm sewer systemand routed to an existing stormwater management pond. Based on information from the Airport manager and Delta Airport Consultants, thisstorm water management pond was constructed to manage storm water from this portion of the airport property. Storm water quantity will beachieved through the purchase of nutrient credits from a DEQ approved source.MAINTENANCEIn general, all erosion and sediment control measures will be checked daily and after each rainfall event. The following items are to be checked:1. The gravel construction entrance shall be checked regularly for sediment buildup which will prevent drainage. If the gravel is clogged bysediment, it shall be removed and cleaned or replaced.2. The inlet protection shall be checked, cleaned of silt, and where needed repaired.3. The seeded areas will be checked regularly to ensure that a good stand is maintained. Areas should be fertilized and reseeded as needed.4. The contractor shall be responsible for keeping all roads and travel ways, both public and private, clean of all dust and mud at all times.5. All downstream properties and waterways shall be provided adequate protection from erosion and sediment deposition.SEEDING SCHEDULE1. All permanent seeding shall be in accordance with section 3.32 of the VESCH.2. On non-rock surfaces, spread topsoil at a minimum depth of four inches.3. Incorporate pulverized agricultural lime into the soil at a rate of 92 lbs. per 1000 sq. ft. (2 tons per acre).4. Fertilize with 10-10-10 fertilizer at a rate of 23 lbs. per 1000 sq. ft. (1000 lbs. per acre).5. Seed all areas with a seed mix consisting of 67% Kentucky 31 Tall Fescue and 33% Red Top Clover.6. Mulch all seeded areas with straw mulch applied at a rate of 3,500 lbs. per acre anchored with cutback or emulsified asphalt applied at a rateof 200 gallons per acre.DUST CONTROL1. Temporary seeding shall be applied to all disturbed areas subject to little or no construction traffic.2. All haul roads and other heavy traffic routes shall be sprinkled with water until the surface is wet. This process shall be repeated as needed tocontrol dust.MINIMUM CONSTRUCTION EROSION & SEDIMENT CONTROL STANDARDS9VAC25-840-40. Minimum standards.A VESCP must be consistent with the following criteria, techniques and methods:1. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of thesite. Temporary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade but will remain dormant forlonger than 14 days. Permanent stabilization shall be applied to areas that are to be left dormant for more than one year.2. During construction of the project, soil stock piles and borrow areas shall be stabilized or protected with sediment trapping measures. Theapplicant is responsible for the temporary protection and permanent stabilization of all soil stockpiles on site as well as borrow areas and soilintentionally transported from the project site.3. A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not beconsidered established until a ground cover is achieved that is uniform, mature enough to survive and will inhibit erosion.4. Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first stepin any land-disturbing activity and shall be made functional before upslope land disturbance takes place.5. Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation.6. Sediment traps and sediment basins shall be designed and constructed based upon the total drainage area to be served by the trap or basin.a. The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area and the trap shall only control drainageareas less than three acres.b. Surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres shall be controlled by asediment basin. The minimum storage capacity of a sediment basin shall be 134 cubic yards per acre of drainage area. The outfall system shall, at aminimum, maintain the structural integrity of the basin during a 25-year storm of 24-hour duration. Runoff coefficients used in runoff calculationsshall correspond to a bare earth condition or those conditions expected to exist while the sediment basin is utilized.7. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that are found to be eroding excessivelywithin one year of permanent stabilization shall be provided with additional slope stabilizing measures until the problem is corrected.8. Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume or slopedrain structure.9. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided.10. All storm sewer inlets that are made operable during construction shall be protected so that sediment-laden water cannot enter the conveyancesystem without first being filtered or otherwise treated to remove sediment.11. Before newly constructed stormwater conveyance channels or pipes are made operational, adequate outlet protection and any requiredtemporary or permanent channel lining shall be installed in both the conveyance channel and receiving channel.12. When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, control sediment transport and stabilizethe work area to the greatest extent possible during construction. Nonerodible material shall be used for the construction of causeways andcofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials.13. When a live watercourse must be crossed by construction vehicles more than twice in any six-month period, a temporary vehicular streamcrossing constructed of nonerodible material shall be provided.14. All applicable federal, state and local requirements pertaining to working in or crossing live watercourses shall be met.15. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed.16. Underground utility lines shall be installed in accordance with the following standards in addition to other applicable criteria:a. No more than 500 linear feet of trench may be opened at one time.b. Excavated material shall be placed on the uphill side of trenches.c. Effluent from dewatering operations shall be filtered or passed through an approved sediment trapping device, or both, and discharged in amanner that does not adversely affect flowing streams or off-site property.d. Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization.e. Restabilization shall be accomplished in accordance with this chapter.f. Applicable safety requirements shall be complied with.17. Where construction vehicle access routes intersect paved or public roads, provisions shall be made to minimize the transport of sediment byvehicular tracking onto the paved surface. Where sediment is transported onto a paved or public road surface, the road surface shall be cleanedthoroughly at the end of each day. Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment controldisposal area. Street washing shall be allowed only after sediment is removed in this manner. This provision shall apply to individual development lotsas well as to larger land-disturbing activities.18. All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after the temporarymeasures are no longer needed, unless otherwise authorized by the VESCP authority. Trapped sediment and the disturbed soil areas resulting fromthe disposition of temporary measures shall be permanently stabilized to prevent further erosion and sedimentation.19. Properties and waterways downstream from development sites shall be protected from sediment deposition, erosion and damage due toincreases in volume, velocity and peak flow rate of stormwater runoff for the stated frequency storm of 24-hour duration in accordance with thefollowing standards and criteria. Stream restoration and relocation projects that incorporate natural channel design concepts are not man-madechannels and shall be exempt from any flow rate capacity and velocity requirements for natural or man-made channels:a. Concentrated stormwater runoff leaving a development site shall be discharged directly into an adequate natural or man-made receivingchannel, pipe or storm sewer system. For those sites where runoff is discharged into a pipe or pipe system, downstream stability analyses at theoutfall of the pipe or pipe system shall be performed.b. Adequacy of all channels and pipes shall be verified in the following manner:(1) The applicant shall demonstrate that the total drainage area to the point of analysis within the channel is one hundred times greater thanthe contributing drainage area of the project in question; or(2)(a) Natural channels shall be analyzed by the use of a two-year storm to verify that stormwater will not overtop channel banks nor causeerosion of channel bed or banks.(a)All previously constructed man-made channels shall be analyzed by the use of a ten-year storm to verify that stormwater will not overtopits banks and by the use of a two-year storm to demonstrate that stormwater will not cause erosion of channel bed or banks; and(b) Pipes and storm sewer systems shall be analyzed by the use of a ten-year storm to verify that stormwater will be contained within thepipe or system.c. If existing natural receiving channels or previously constructed man-made channels or pipes are not adequate, the applicant shall:(1) Improve the channels to a condition where a ten-year storm will not overtop the banks and a two-year storm will not cause erosion tochannel the bed or banks; or(2) Improve the pipe or pipe system to a condition where the ten-year storm is contained within the appurtenances;(3) Develop a site design that will not cause the pre-development peak runoff rate from a two- year storm to increase when runoff outfallsinto a natural channel or will not cause the pre- development peak runoff rate from a ten-year storm to increase when runoff outfalls into a man-made channel; or provide a combination of channel improvement, stormwater detention or other measures which is satisfactory to the VESCPauthority to prevent downstream erosion.d. The applicant shall provide evidence of permission to make the improvements.e. All hydrologic analyses shall be based on the existing watershed characteristics and the ultimate development condition of the subject project.f. If the applicant chooses an option that includes stormwater detention, he shall obtain approval from the VESCP of a plan for maintenance of thedetention facilities. The plan shall set forth the maintenance requirements of the facility and the person responsible for performing themaintenance.g. Outfall from a detention facility shall be discharged to a receiving channel, and energy dissipators shall be placed at the outfall of all detentionfacilities as necessary to provide a stabilized transition from the facility to the receiving channel.h. All on-site channels must be verified to be adequate.i. Increased volumes of sheet flows that may cause erosion or sedimentation on adjacent property shall be diverted to a stable outlet, adequatechannel, pipe or pipe system, or to a detention facility.j. In applying these stormwater management criteria, individual lots or parcels in a residential, commercial or industrial development shall not beconsidered to be separate development projects. Instead, the development, as a whole, shall be considered to be a single development project.Hydrologic parameters that reflect the ultimate development condition shall be used in all engineering calculations.k. All measures used to protect properties and waterways shall be employed in a manner which minimizes impacts on the physical, chemical andbiological integrity of rivers, streams and other waters of the state.Any plan approved prior to July 1, 2014, that provides for stormwater management that addresses any flow rate capacity and velocity requirementsfor natural or man-made channels shall satisfy the flow rate capacity and velocity requirements for natural or man-made channels if the practicesare designed to (i) detain the water quality volume and to release it over 48 hours; (ii) detain and release over a 24-hour period the expected rainfallresulting from the one year, 24- hour storm; and (iii) reduce the allowable peak flow rate resulting from the 1.5, 2, and 10-year, 24-hour storms to alevel that is less than or equal to the peak flow rate from the site assuming it was in a good forested condition, achieved through multiplication ofthe forested peak flow rate by a reduction factor that is equal to the runoff volume from the site when it was in a good forested condition divided bythe runoff volume from the site in its proposed condition, and shall be exempt from any flow rate capacity and velocity requirements for natural orman-made channels as defined in any regulations promulgated pursuant to § 62.1-44.15:54 or 62.1- 44.15:65 of the Act.l. For plans approved on and after July 1, 2014, the flow rate capacity and velocity requirements of § 62.1-44.15:52 A of the Act and thissubsection shall be satisfied by compliance with water quantity requirements in the Stormwater Management Act (§62.1-44.15:24 et seq. of theCode of Virginia) and attendant regulations, unless such land-disturbing activities are in accordance with 9VAC25-870-48 of the Virginia StormwaterManagement Program (VSMP) Permit Regulations.m. Compliance with the water quantity minimum standards set out in 9VAC25-870-66 of the Virginia Stormwater Management Program (VSMP)Permit Regulations shall be deemed to satisfy the requirements of Minimum Standard 19.DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/2114 AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE BRLBRLBRLXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X X X X XXXXXXXXXXXXXXXXXXXXXX X XX 8" FILTREXX SILTSOXXPERIMETER CONTROL8" FILTREXX SILTSOXXPERIMETER CONTROLCESFSFSFIPX XIP FILTREXX SILTSOXXINLET PROTECTION3B9B3B9B0.24 AC0.24 AC0.24 AC0.24 AC0.24 AC0.24 AC0.24 AC0.05 AC0.05 AC0.05 AC0.05 AC0.11 ACDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21EROSION & SEDIMENT CONTROL PHASE 1E&S LEGENDCEConstruction EntranceSFFiltrexx Perimeter ControlCDRock Check DamSFSilt Fence IPInlet Protection (SF OR Filtrexx)TOTop SoilingTSTemporary SeedingPSPermanent Seeding15SOILS INDEX3B Blairton silt loam9B Clearbrook channery silt loam LOCLOCLOCLOCLOCLOCLOCLOCLOCLOCAIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE BRLBRLBRLXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X X X X XXXXXXXXXXXXXXXXXXXXXX X XX 8" FILTREXX SILTSOXXPERIMETER CONTROL8" FILTREXX SILTSOXXPERIMETER CONTROLCESFSFSFIPX XIP FILTREXX SILTSOXXINLET PROTECTIONTOTSPSFILTREXX SILTSOXXINLET PROTECTIONFILTREXX SILTSOXXINLET PROTECTIONFILTREXX SILTSOXXINLET PROTECTIONFILTREXX SILTSOXXINLET PROTECTIONFILTREXX SILTSOXXINLET PROTECTIONIPIPIPIPIPX X IPX X X X X X X X X XIPX XIPX XIPXXIPXXIPXX 3B9B3B9B0.24 AC0.24 AC0.24 AC0.24 AC0.24 AC0.24 AC0.24 AC0.05 AC0.05 AC0.05 AC0.05 AC0.11 ACDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21EROSION & SEDIMENT CONTROL PHASE 2E&S LEGENDCEConstruction EntranceSFFiltrexx Perimeter ControlCDRock Check DamSFSilt Fence IPInlet Protection (SF OR Filtrexx)TOTop SoilingTSTemporary SeedingPSPermanent Seeding16 EROSION & SEDIMENT CONTROL DETAILSDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/2117 STORM SEWER PROFILES1"=50'(H) 1"=5'(V)CROSSING NOTES: DATE: SCALE: CHECKED BY: SHEET OF 25KOKV Hangars - SE SideWinchester Regional AirportTAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39ASHAWNEE DISTRICTFREDERICK COUNTY, VIRGINIATSS 1225.0103 Heath CourtWinchester, VA 22602(540) 686-7373fax (540) 301-1100TSS AS SHOWN August 30, 2021 PROJECT NUMBER: DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe 9/3/21 +50 0+00 +50 1+00 +50 2+00 +50 3+00 680 685 690 695 700 705 710 715 720 725 680 685 690 695 700 705 710 715 720 725 +50 0+00 +50 1+00 +50 2+00 +50 3+00 +50 4+00 +50 5+00 +50 680 685 690 695 700 705 710 715 720 725 680 685 690 695 700 705 710 715 720 725 +50 0+00 +50 1+00 +50 2+00 680 685 690 695 700 705 710 715 720 725 AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRC L E in v i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 EXISTING STORMWATER MNGT PONDAREA: Pre-B1DA=4.67 Ac.CN=73Tc=10.2 Min.AREA: Pst-B2DA=3.88 Ac.CN=79Tc=13.6 Min.Tc pathTc pathAIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCL E in v i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 EXISTING STORMWATER MNGT PONDAREA: Pre-B1DA=4.67 Ac.CN=73Tc=10.2 Min.AREA: Pst-B2DA=4.48 Ac.CN=73Tc=13.6 Min.Tc pathTc pathDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21DRAINAGE AREA MAP EXISTING DRAINAGE AREASPROPOSED DRAINAGE AREAS18 inv in - 691.50inv out - 691.27 24" RCPEST WSE = 690.5 inv i n - 6 9 1 . 5 0 in v o u t - 6 9 1 . 2 7 24" RCP E S T W S E = 6 9 0 . 5 DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21STORMWATER QUALITY COMPUTATIONSExisting Impervious AreaNew Impervious Area0200400020040020Site Area8.541 AcresImprovement Factor0.8 UsedI.F.0.8 site >1 Acres0.9 site <=1 AcreUnitDescriptionQ-Pre-Developed6.01cfsThe peak flow rate of runoff from the site in the pre-development conditionRV-Pre-Developed0.389Ac.Ft.The volume of runoff from the site in the pre-development conditionQ-Developed9.96cfsThe allowable peak flow rate of runoff from the developed siteRV-Developed0.614Ac.Ft.The volume of runoff from the site in the developed conditionQ-Forest0cfsThe peak flow rate of runoff from the site in a forested conditionRV-Forest0Ac.Ft.The volume of runoff from the site in a forested conditionQ Allowable Developed3.05cfs=IF*(Qpre*Rv-Pre)/Rv-DevQ Allowable Forest0.00cfs=(Qforest * RV-Forest)/RV-DevQ Allowable3.05cfsQ Post2.92cfsALLOWABLE DISCHARRGE DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21STORMWATER QUANTITY COMPUTATIONS STORM WATER NARRATIVE:DRAINAGE AREATHIS PROJECT INVOLVES THEREDEVELOPMENT OF EXISTING PAVEDAIRCRAFT PARKING AREAS WITHCONSTRUCTION OF 11 AIRCRAFTHANGARS.LIMITS OF STUDYTHE EXISTING 24" RCP DISCHARGE FROMTHE EXISTING STORM WATERMANAGEMENT BASIN SERVES AS THELIMITS OF THE STUDY. THE EXISTINGSTORM WATER MANAGEMENT BASINWILL DETAIN THE INCREASE IN RUNOFFRESULTING FROM THIS PROJECT SUCHTHAT THERE IS NO INCREASE IN THERUNOFF RATE BEYOND THIS POINT.OVERALL RUNOFF ANALYSIS (QUANTITY)THIS PROJECT DRAINS TO AN EXISTINGSTORMWATER MANAGEMENT PONDTHAT WAS DESIGNED BY DELTA AIRPORTCONSULTANTS AND BUILT WITH THERELOCATION OF AIRPORT ROAD. THESWM POND WAS DESIGNED IN 2003USING THE PREVIOUS STORMWATERMANAGEMENT REGULATIONS. THECURRENT PROJECT PROVIDES FORCHANNEL PROTECTION UNDER THECURRENT REGULATIONS FOR THEINCREASE IN IMPERVIOUS AREARESULTING FROM THIS PROJECT. THISSWM PLAN ALSO LIMITS THE 10 -YEARPOST DEVELOPMENT RUNOFF FROMTHIS PROJECT TO THE ORIGINAL DESIGN10-YEAR PRE-DEVELOPMENTDISCHARGE. THE DRAINAGE DIVIDESAND PROPOSED POND DESIGN FROMTHE AIRPORT ROAD RELOCATION PLANSWERE USED WITH TR-20 TO COMPUTETHE PREDEVELOPMENT 1 YEAR STORMAND ALLOWABLE 10 YEAR DISCHARGE.THIS PROJECT'S POST DEVELOPMENTDISCHARGES INCLUDE THE NEWIMPERVIOUS AREA SHOWN ON THIS PLANAND ANY EXISTING IMPERVIOUS AREASWITHIN THE DRAINAGE AREAS. THEALLOWABLE DISCHARGE RATES FOR THE1 & 10 YEAR STORMS WILL BECONTROLLED BY ADDING A RISERSTRUCTURE WITH AN ORIFICE OPENINGTO THE EXISTING OUTLET PIPE.IT IS OUR OPINION WE HAVE METALLOWABLE DISCHARGE FROM THISPROJECT AND HAVE DEMONSTRATEDTHERE WILL BE NO ADVERSE EFFECTSON THE EXISTING DRAINAGEINFRASTRUCTURE.QUALITY ANALYSISQUALITY HAS BEEN MET THROUGH THEPURCHASE OF NUTRIENT CREDITS.COMPUTATIONS CAN BE FOUND ONASSOCIATED SHEETS.21STORM SEWER COMPUTATIONSINLET COMPUTATIONSHYDRAULIC GRADE LINE COMPUTATIONSINLETSAG INLETS ONLYGRATE INLETS ONLYNUMBER TYPE LENGTH (FT) DRAINAGE AREA (AC) C CA sum CA Tc, Time to Inlet (MIN) I (IN/HR) Q, INCR (CFS) Qb, CARRYOVER (CFS) QT, GUTTER FLOW(CFS) S, GUTTER SLOPE (FT/FT) Sx, CROSS SLOPE (FT/FT) T, SPREAD W (FT) W/T Sw (FT/FT) Sw/Sx Eo a=12W(Sw-Sx)+Local Depression S'w=a/(12W) Se=Sx+S'w(Eo), (FT/FT) COMPUTED LENGTH Lt,(FT) L, SPECIFIED LENGTH (FT) L/Lt E Qi, INTERCEPTED (CFS) Qb,CARRYOVER (CFS) d (FT) h (FT) d/h T, SPREAD @ SAG (FT) EFFECTIVE PERIMETER d (FT)20CLEAN OUT0.00 0.50 0.00 0.00 0.00 6.52 0.00 0.0021Nyloplast Round 15''0.23 0.75 0.18 0.18 5.00 6.521.140.002.470.28830DI-70.00 0.00 0.00 0.00 0.00 6.52 0.00 0.002.75 0.00031MH-2-4DIA0.00 0.85 0.00 0.00 5.00 6.52 0.00 0.0032Nyloplast Round 15''0.11 0.85 0.09 0.09 5.00 6.52 0.60 0.002.465 0.18733Nyloplast Round 12''0.130.85 0.11 0.11 5.00 6.52 0.71 0.002.070.23634Nyloplast Round 12''0.11 0.85 0.09 0.09 5.00 6.52 0.59 0.002.07 0.20835Nyloplast Round 12''0.10 0.85 0.09 0.09 5.00 6.52 0.56 0.002.07 0.20036Nyloplast Round 12''0.11 0.85 0.09 0.09 5.00 6.52 0.61 0.002.07 0.21437Nyloplast Round 12''0.14 0.85 0.12 0.12 5.00 6.52 0.79 0.002.07 0.25338Nyloplast Round 15''0.08 0.85 0.07 0.07 5.00 6.52 0.47 0.002.470.15939Nyloplast Round 12''0.08 0.85 0.07 0.07 5.00 6.52 0.47 0.002.07 0.17940Nyloplast Round 12''0.08 0.85 0.07 0.07 5.00 6.52 0.47 0.002.07 0.17941Nyloplast Round 12''0.10 0.85 0.08 0.08 5.00 6.52 0.54 0.002.07 0.19742Nyloplast Round 12''0.09 0.85 0.08 0.08 5.00 6.52 0.52 0.002.07 0.19243Nyloplast Round 12''0.07 0.85 0.06 0.06 5.00 6.52 0.38 0.002.07 0.156From ToDA CCAInlet Time Peak TimeIntensityQ10InvertsLengthSlopeDiaCapVel Flow Time(Acres)Factor Inc. 0.6944565(mim) (mim) (in/hr) (cfs)US DS(ft) (ft/ft) (in) (cfs) (fps) (min)43420.07 0.85 0.06 0.06 5.00 5.00 6.52 0.38 698.61 698.35 50.76 0.0050122.53 2.32 0.3742 410.09 0.85 0.08 0.14 5.00 5.37 6.41 0.89 698.35 698.05 60.00 0.0050122.53 2.94 0.344140 0.10 0.85 0.08 0.22 5.00 5.71 6.311.41698.05 697.79 52.00 0.0050122.53 3.31 0.2640 39 0.08 0.85 0.07 0.29 5.00 5.97 6.24 1.84 697.79 697.53 52.00 0.0050122.53 3.51 0.2539 38 0.08 0.85 0.07 0.37 5.00 6.21 6.17 2.26 697.53 697.26 52.00 0.0050122.53 3.64 0.2438 31 0.08 0.85 0.07 0.44 5.00 6.45 6.10 2.67 697.26 696.00 34.94 0.0362126.77 8.12 0.0737 36 0.14 0.85 0.12 0.12 5.00 5.00 6.52 0.79 701.05 700.79 52.00 0.0050122.53 2.84 0.3036 35 0.11 0.85 0.09 0.22 5.00 5.30 6.43 1.38 700.79 700.53 52.00 0.0050122.53 3.29 0.2635 34 0.10 0.85 0.09 0.30 5.00 5.57 6.35 1.91 700.53 700.26 52.00 0.0050122.53 3.54 0.2434 33 0.11 0.85 0.09 0.39 5.00 5.81 6.28 2.45 700.26 699.74 52.00 0.0100123.56 4.89 0.1833 32 0.13 0.85 0.11 0.50 5.00 5.99 6.23 3.11 699.74 697.70 204.73 0.0100123.56 5.11 0.6732 31 0.11 0.85 0.09 0.59 5.00 6.66 6.04 3.57 697.70 696.00 45.90 0.0370126.85 8.81 0.0931 30 0.00 0.85 0.00 1.03 5.00 6.74 6.01 6.19 695.50 695.07 27.35 0.0157 18 13.17 7.34 0.062120 0.23 0.75 0.18 0.18 5.00 5.00 6.521.14702.59 700.47 211.60 0.0100 6 0.69#VALUE!0.00Junction LossElevInletUSOutletDoQoLo SfoHfVoHoQiViQiViVi^2/2gHiAngleHdeltaHt1.3Ht0.5HtFinal HWaterRimStationInlet WSEin cfsftft/ftftftftftftftft ftSurfaceElev30Starting Elevation696.57704.3931696.57186.1927.350.00350.10 7.340.210.420.681.310.00 0.650.75697.32703.50323.578.8131.461.210.42600.68382.678.12 21.701.020.36350.3632697.32123.5745.90 0.01000.468.810.300.140.140.59 0.760.380.84698.16702.47333.11 5.1115.920.410.14350.1433698.70123.11 204.730.00761.565.110.100.130.00 0.230.300.151.71700.41 703.69342.454.8911.990.370.130 0.0034700.74 122.4552.000.00470.254.890.090.070.000.160.210.100.35 701.09703.68351.913.546.750.190.070 0.0035701.26 121.9152.000.00290.153.54 0.050.060.000.110.140.07 0.22701.48703.68361.383.294.550.17 0.0600.0036701.53 121.3852.000.00150.08 3.290.040.040.000.090.11 0.060.13701.66703.80370.792.84 2.240.130.0400.0037701.79120.7952.00 0.00050.032.840.030.000.000.03 0.040.020.05701.83704.05-38697.32122.67 34.940.00560.208.120.260.070.10 0.430.560.280.48697.80 702.30392.26 3.648.230.210.07500.1039698.26122.2652.000.00400.213.640.050.070.000.120.150.080.29 698.55702.05401.843.516.460.190.070 0.0040698.55 121.8452.000.00270.143.51 0.050.060.000.110.140.070.21698.76701.79411.413.314.650.17 0.0600.0041698.79 121.4152.000.00160.08 3.310.040.050.000.090.120.06 0.14698.93701.32420.892.942.63 0.130.0500.0042699.05120.8960.00 0.00060.042.940.030.030.000.060.08 0.040.08699.13701.35430.382.32 0.890.080.0300.0043699.35120.38 50.760.00010.012.320.020.000.000.02 0.030.010.02699.37701.61- DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21STORMWATER QUANTITY COMPUTATIONS 22 DATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/21STORMWATER DETAILS 23 AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE AAA6" WIDE YELLOW STRIPE AT EDGE OF PVMT.SEE NOTE THIS SHEET.8" WTRPROP FIRE HYDRANT12" WATER12" WATEREX FIRE HYDRANT24' FIRE ACCESS ROADAPROP FIRE HYDRANT8" WTRAAAAAAAAAAAALIFE SAFETY PLANDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/2104080NOPARKINGFIRE LANENOPARKINGFIRE LANENOPARKINGFIRE LANENOPARKINGFIRE LANE24NOTE1. BUILDING CONSTRUCTION WILL BE IBC TYPE 2b2. USE IS S1 - GROUP III (AIRCRAFT STORAGE ONLY)3. CONDOMINIUMS LESS THAN 12,000 SF WILL BE SEPERATED BY A 2 HR FIRE WALL4. THERE WILL BE NO HAZARDOUS OPERATIONS OR RESIDENTIAL USES.5.PER NFPA 409 8.8.1.1 THESE HANGERS MUST COMPLY WITH STANDARD HEIGHT AND AREAREQUIREMENTS AND WOULD NOT BE REQUIRED TO BE SPRINKLED AIRPORT ROADWINCHESTER REGIONAL AIRPORTTAILSPIN CIRCLE 0 . 0 0 . 1 0 . 1 0 . 2 0 . 3 0 . 1 0 . 2 0 . 5 0 . 8 0 . 9 0 . 1 0 . 3 0 . 5 1 . 0 1 . 7 2 . 8 2 . 3 0 . 1 0 . 3 0 . 5 0 . 9 1 . 8 4 . 2 7 . 4 5 . 2 1 . 7 0 . 1 0 . 3 0 . 6 0 . 9 1 . 4 2 . 8 6 . 8 1 2 . 5 8 . 6 0 . 2 0 . 3 0 . 6 1 . 1 1 . 7 2 . 3 2 . 7 4 . 3 7 . 2 0 . 1 0 . 2 0 . 3 0 . 6 1 . 2 2 . 2 4 . 2 4 . 4 2 . 5 1 . 7 0 . 1 0 . 2 0 . 3 0 . 6 1 . 0 1 . 8 4 . 5 9 . 3 8 . 7 3 . 0 0 . 1 0 . 2 0 . 4 0 . 7 1 . 1 1 . 6 2 . 6 5 . 3 1 0 . 1 9 . 3 0 . 1 0 . 2 0 . 4 0 . 7 1 . 3 2 . 2 3 . 1 2 . 6 2 . 7 3 . 8 0 . 1 0 . 2 0 . 4 0 . 7 1 . 2 2 . 6 5 . 6 6 . 9 3 . 4 1 . 4 0 . 1 0 . 2 0 . 4 0 . 7 1 . 1 1 . 9 4 . 4 9 . 8 1 1 . 5 4 . 4 0 . 1 0 . 2 0 . 4 0 . 8 1 . 3 1 . 9 2 . 3 3 . 4 6 . 4 7 . 1 0 . 1 0 . 2 0 . 4 0 . 8 1 . 5 2 . 8 4 . 3 3 . 0 1 . 9 0 . 1 0 . 2 0 . 4 0 . 7 1 . 2 2 . 7 6 . 5 9 . 5 5 . 1 0 . 1 0 . 2 0 . 4 0 . 8 1 . 2 1 . 8 3 . 7 8 . 3 1 1 . 7 0 . 1 0 . 2 0 . 4 0 . 9 1 . 5 2 . 4 2 . 6 2 . 6 3 . 8 0 . 1 0 . 2 0 . 4 0 . 7 1 . 5 3 . 4 6 . 0 4 . 4 2 . 0 0 . 1 0 . 2 0 . 4 0 . 6 1 . 0 2 . 4 6 . 3 1 1 . 9 7 . 9 0 . 1 0 . 2 0 . 4 0 . 7 1 . 0 1 . 4 2 . 6 5 . 6 9 . 5 0 . 1 0 . 2 0 . 4 0 . 9 1 . 5 2 . 1 1 . 9 1 . 7 2 . 1 0 . 0 0 . 1 0 . 3 0 . 8 1 . 6 3 . 6 5 . 3 3 . 1 1 . 3 0 . 0 0 . 1 0 . 2 0 . 4 1 . 0 2 . 9 7 . 6 1 1 . 2 5 . 6 0 . 1 0 . 2 0 . 4 1 . 2 3 . 1 7 . 3 1 0 . 6 0 . 2 0 . 3 0 . 7 1 . 4 2 . 6 0 . 2 0 . 3 0 . 5 0 . 1 0 . 0 0 . 1 0 . 1 0 . 1 0 . 1 0 . 2 0 . 2 0 . 3 0 . 2 0 . 1 0 . 2 0 . 4 0 . 5 0 . 6 0 . 5 0 . 1 0 . 2 0 . 4 0 . 8 1 . 2 1 . 7 1 . 2 0 . 5 0 . 1 0 . 2 0 . 4 0 . 8 1 . 5 3 . 1 4 . 7 2 . 7 0 . 9 0 . 1 0 . 2 0 . 5 0 . 8 1 . 3 2 . 7 6 . 7 1 0 . 6 5 . 8 0 . 1 0 . 3 0 . 5 0 . 9 1 . 3 1 . 9 3 . 6 7 . 6 1 1 . 2 0 . 1 0 . 1 0 . 3 0 . 5 1 . 0 1 . 8 2 . 9 3 . 0 2 . 6 3 . 2 0 . 1 0 . 1 0 . 3 0 . 5 0 . 9 1 . 7 4 . 1 7 . 3 5 . 5 2 . 3 0.1 0.1 0 . 3 0 . 5 0 . 9 1 . 4 2 . 7 6 . 6 1 2 . 4 8 . 9 0.1 0.1 0.3 0.5 1 . 0 1 . 5 2 . 2 2 . 8 4 . 6 7 . 6 0.1 0.1 0.3 0.5 1.0 1. 9 3 . 6 4 . 6 2 . 8 2 . 0 0.1 0.1 0.3 0.5 0.9 1.5 3.7 8. 2 9 . 3 3 . 9 0.1 0.1 0.3 0.6 0.9 1.4 2.2 4.6 9.6 10 . 9 0.1 0.1 0.3 0.6 1.1 1.8 2.7 2.4 2.6 4.00.1 0.2 0.3 0.6 1.0 2.1 4.6 6.4 3.4 1.50.1 0.1 0.3 0.6 0.9 1.5 3.6 8.5 11.8 5.30.0 0.1 0.1 0.3 0.7 1.1 1.6 2.1 3.5 6.6 8.90.0 0.1 0.3 0.6 1.2 2.4 3.7 2.9 2.1 2.30.4 0.9 2.2 5.6 8.6 4.8 1.51.1 3.2 8.1 12.32.0 4.1 OUTDOOR LIGHTING PLANDATE:SCALE:CHECKED BY:SHEET OF 25KOKV Hangars - SE Side Winchester Regional Airport TAX MAP # 64-5-1A, 64-A-79, 64-5-3A, 64 A 39A SHAWNEE DISTRICT FREDERICK COUNTY, VIRGINIATSS1225.0103 Heath Court Winchester, VA 22602 (540) 686-7373 fax (540) 301-1100TSSAS SHOWNAugust 30, 2021PROJECT NUMBER:DRAWN BY:STOWE ENGINEERING, PLCTimothy S. Stowe9/3/2104080OUTDOOR LIGHTING NOTES1. ALL OUTDOOR LIGHTING FIXTURES SHALL BE DESIGNED, SHIELDED, AIMED, LOCATED AND MAINTAINEDTO SHIELD ADJACENT PROPERTIES AND TO NOT PRODUCE GLARE ONTO ADJACENT PROPERTIES ORROAD RIGHTS-OF-WAY. PARKING LOT FIXTURES AND LIGHT FIXTURES ON BUILDINGS SHALL BE SET TOFULL-CUTOFF FIXTURES COMPLYING WITH ZONING ORDINANCE SECTIONS 165-201.07(B)(5) & (6).2. LIGHT FIXTURES, INCLUDING MOUNTING BASE, SHALL NOT BE MORE THAN 25 FEET IN HEIGHT ABOVEFINISHED GRADE.3. LIGHT FIXTURES SHALL BE PLACED OUTSIDE OF PAVED AREAS WHERE POSSIBLE. WHERE LIGHTFXTURES ARE TO BE PLACED IN PAVED AREAS THEY SHALL BE PROTECTED WITH BOLLARDS ON FOURSIDES. SEE BOLLARD DETAIL THIS SHEET.4. ALL LIGHTING SHALL BE ORIENTED SO NOT TO PRODUCE DIRECT GLARE OR EXCESSIVE ILLUMINATIONONTO STREETS IN A MANNER THAT MAY DISTRACT OR INTERFERE WITH THE VISION OF DRIVERS.25Luminaire ScheduleSymbolQtyLabel11WPLEDFC80 - Cool - RAB02588MOCalculation SummaryLabelCalcTypeUnitsAvgMaxMinCalcPts_1IlluminanceFc2.2712.50.0