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041-95 Timber Ridge Administration Building - Gainesboro - Backfile
S( 'VjC)"lIT'y �P(L%CY- c-,gl t2 -7 \N, Wr 6 - 4r4 - 121� _x\1 7 74 z f "p, 4 TZ v 9�< Aki' 4- N .41 V_ + M C2_ FRO -7 je V'*y t. �! I p r : OvTf _�r_-e_T 15- X C 0�*—V A7f7. V,f -, 4 q > U 1 cam �- F <, M -Z ex-rc,9-Y �?FA-Va Q07 wct,, r,-;%wAT, e7T 'rYfV� F,' hs, or_tl� m 46L4n -eq �o eA. V, I ��- I e,2 ne 4 To De. tArs 20 AL4 en 4, 0404iC'0 PVC, )TIVO L--)A-Tv-r* TO Ile, .loo I ____.vo L Z? rVA . Ire tjo I rl 1 � 1 t j*24 t 4, A'J N- 71 46. �3 �ZmriL, A i, f-A M f "OP F P-0 V I v IF-- �A - C, ke-c-r-s-41; vj�. 0 lit, i, 4, -AD P1 I It'J t, l-VCO - ic-rkowt 54j, i r4zT&,., Fi!.Vrorta, T I Ke*w— k+1-4-11 tl3c)_ I t� V P_y 1-k y p P,4ktj 003 P_-*iAw-TWco t,Awc. . OT4eiPL 41 f 14 4C� CIS Z'o -�- h L, WE'-- ! t I- -Z c), r�rt-1 en-P f-P-4f--tAC-t-4'T V� 0 1Ct"r.-r'4 L WINNER No. 4 - 'o 0) c Z3 U) (D O C) > E U) 0 c > c 0 >I -0--d CTJ L_ 0 _x c: .2 E 0 E P u. THESE DRAWINGS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAW OF THE U S AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF THE ARCHITECT REVISIONS NO. DATE BY issu DATE V, i ,� q - li - "'T �; - DRAWN BY K Ll CHECKED BY SCALE SHEET TITLE FENAL JOB NUMBER SHEET NUMBER c•1 1 ml i\0 ...... ..... . ......... / � 1 z '` �•.' yJr t' / r ^� J j aF �Yl _". 1- __ /` , t At + ~Y { r V t 1 � 'It r'I Of } Av- _� �` �`h `\ �ti�J �� L �` � `• ✓'� . , ^ V1''`�t-1, L---'ri``f�,~�r' t/�.,�wt..•-...+..,•.l..w..�A,..�.�.�',�.-' � ���- /� -•--'".` --- ::p40 r Q 76 --INIti \ j 400 A• f u.— -_ / do J ,yo A i6 r \ rC ICY ` � �° �; f � f '� � .----- ! O gyp...,,,,,_ f•� � ;- � �,� � t, � t - 1,\ ors ! "."�Ix` L'r r N O -4 f N s ` \ VA k- 10, to sv 4-11 1 .Y T17.A �.XI STD ►`�-> t � . - - . `} >L7 WOOO 4,A4 jL<1r INI� A-rr-- C,, ',i y-6,k-TIGr-1 t U Q7 � c U) a) U U E co p�j z t.. 0 O •� 4L Z t0 Z7 �' O N C cz �. rn W OO � W -0 d c Q THESE DRAWINGS ARE PROTECTED UNDER THE COMMON COPIRIGHT LAW OF THE U S . AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF -THE ARCHITECT REVISIONS NO. DATE BY ISSUE DATE L DRAWN BY . 1L-U i�2 CHECKED BY SCALE SHEET TITLE JOB NUMBER SHEET NUMBER CO2 , r" CONCRETE ARCH CLASS '6" Carefully Compacted Select Backfill I- 6' STONE AGGREGATE s~ CONCRETE AGGR AG ATE CONCRETE CRADLE CLASS -A- Carefully Compacted Seleet Backfill Carefuiiy Compacted Select Backfill �24- --T— 4 " L-6" STONE AGGRAGATE illy Compacted Backfill rin) (typical) CONCRETE CONCRETE ENCASEMENT REPAVE TO 1-1 /2 TIMES ORIGINAL THICKNESS SAW CUT TO BE MADE AT TIME OF REPLACEMENT (ty P) 18" W 16" 8" I B ACKF ILL M ATt AS REQ'D BY VDOT PERMIT (Full Depth Crushed Stone typical) 6" VDOT PAVEMENT REPLACEMENT TRENCH & BEDDING DETAILS - W&S- I 8. S" VDOT TYPE 1, -NO 21 OR 21 B AGGREGATE BASE 2" MIN SM-2A BITUMINOUS CONCRETE SURFACE WELL -COMPACTED SUBGRADE TYPICAL PAIRKING PAVEMENT SECTION NO SCALE FIN. GRADE VARIES -SEE PLAN f c 3500 psi CONC. WALK 4" CRUSHED f 1 I "6~ X 6" W1.4 X W1.4 W.W.F. STONE BASE t TYPICAL CONCRETE SIDEWALK SSECTION NO SCALE' I 2" MIN. V.D.O.T. SM-2A BITUMINOUS CONCRETE SURFACE 3' 3' 20' 1 3' 1 3• II IN. MIF4. I . I 1" asp COMPACTED SUB RkD 9" MIN. V.D.O.T. NO. OR .TYPICAL ACCESS ROAD - SEC11ON 3 EL 1 \ BONE BG f'G N Ho 3 Z 2 D c01TUr q r w o0 �Z!r / �� TU�A� w v I N' In J 2 42. �.�. W in / O W / rY J 1 m � � V J � � W J Q 3 .a W z C,P01Z17= ci1S�16'45"W 1�)0.0)7 1� 20°0Z33" W 131.35" / / r' / f p-e �D`a� fl ISM I !� • 4o - ! �(�1VD1►�1C� N l CHORD= C107°019'35"W 2�T.4s GHOR = 90&J°2 '25"W 241.1z y05043 OA0 1Z(o.744 ACMES T A (7. *- A - I.S ZOFIE c-A 12 B. 5(.3, F7Cam. G 3 5 NEW NOSE z � L. KO E T T A LYNCH 6 0,0 �{ 70HE R-A. U'iE AGKIGULTURAL PRoPERTI""" 60U N DA IC� VLAN SCALE: I" : 300' _ HOZI H �\ 9C4 L E I"= 300' / ti / :V / D I`105.- (A O 1, �y GEOKGE B W141TACICE / CO D. B. 175, PG. 735 208E. K-A d7E RE51C7ENTIAL ZL o �Mi E-P /3 E oG R'q 8• p B'9 a G T TO / \ US '��� E ME r ¢cA/ FOR VICINITY MAC' ARV GEHEIZAL HOTEq . SEE IiHEET Z OF 7 ®E 4j,NLTH op I ee, Vol KENNETH L BONNER CERTIFICATE NO. 05214 I/1 gr�IeD 1lKC����E c 0) ._ C U U •> i U cc U Cn Cv Z ~ C11 p .— m 0 '- > Z "N ~ C LL �v Z. co 10 _U C 0 CM LA 0 Q v `— •� '_p U U I } N CC 0 ' C U •� W X � 8 N �E �- CO -s Ed cN THESE DRAWINGS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAW OF THE U.S., AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF THE ARCHITECT. REVISIONS NO. DATE BY I n ` AMNIA.! 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'�- L'�' ,. r. 1♦,,j .c aa;,�.:, ,r 47 ',c�, •\ s♦ i �•. 7 r •„",i i shy- r. ,4 t Y' �*. � { � t � i - 1�"' ,, \ .. ••.'v. \..♦ � �., x �-"- w,: r� .�� - � -. .. y+ ..�,-* !�"T'� s�'": t j *mot .,,.r"`,r.. %.. #'^t , k „ , , r L , , r t` '.'�w •, 1, t,.i ", t ¢ gg , a•, r x» .AA x. I-. f , VL i 3 i 1. - '"`__"", ""^"'""""' -_ - - o- ,( j+; .?�.• � F" s7 �.: -�' _ ,'f�'; •�° men. ' d � '?iA� `�y 4f tr"'n''r�k' �,' "� � i''' . %� ',e -` � �. la) ` E co c/) +... i ...+,,,,J d iL3 _ .0 Q.. p rVI q coo E-+ `� , /0 �O �,•! • W X L >Cc c3� ' c # LL, w J 0 THESE DRAMfiGiS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAIN OF THE U S, AND MAY NOT BE USED N A14Y MANNER WHATSOEVER WITHOUT THE EXPRESSED -WRITTEN PERMISS;ON- OF THE ARCHITECT REVISIONS NO DATE: BY ISSUE DATE 41, - DRAWN BY CHECKED BY, SCALE T-- SHEET TiTL ,a 5 JOB NUMBER �._ .._...,...�. _._._ SHEET NUMBER i 4 TIMBER RIDGE SCHOOL EROSIONI & SEDIMENT NARRATIVE 14 August 1995 PROJECT DESCRIPTION This project consists of grading approximately 1.4 acres of a 126.244 acre site fo)r construction of an administration and professional service building. The project is located near Rt. 522 at Reynolds Store,. in Gainesboro District., Frederick County, Virginia. EXISTING SITE CONDITIONS The site is wooded Band is adjacent to other facilities of the school complex. ADJACENT PROPERTY The site is surrounded by other land of the Timber Ridge facility. SOILS The soil is Gainesboro - Lehew Complex (18-C) with 7 to 15% slopes. The surface ]layer is reddish brown channery loam, 8 inches thick. The subsoiR to da depth of about 26 inches, is reddish brown channery salt loam and very channery silty clay loam, The substratum, to a depth of 32 inches, is reddish brown extremely channery silty clay loam. Shale bedrock is a depth of 32 inches. Typically, the surface layer of the Lehew soil is reddish brown channery fine sandy loam about 9 inches thick. The subsoil, to a depth of abbout 26 inches is reddish brown very channery and extremely f]laggy fine sandy loam. The substratum, to a depth of 35 inches, is reddish brown extremely flaggy fine sandy loam. Hard sandstocne bedrock is at a depth of 35 inches. Included with these soils in mapping are intermingled areas of Berks and Dekallb soils. The included soils make up 25% of the map unit. Permeability is moderately rapid in the Gainesboro soil and rapid in the Lehew soil. The available water capacity is very low in both soils. ]Runoff is medium to rapid. The erosion hazard is sever. The shrank -swell potential in the subsoil is low. Most areas of these soils are used as woodland. Some areas are used for pasture. A ,few areas are used for hay and culti- vated crops. These soils are mod(erately well suited to cultivated crops. Erosion is a seveire hazard if cultivated crops are grown. Controlling erosi(on is a major management concern. The soils are droughty during dry periods. Using conservation tillage, growing cover drops, including grasses and legumes in the cropping system, and crop residue management help to improve soil tilth and t(o increase organic matter content in the surface layer, to reduce crusting, to increase water infiltration, and to control erosion. Depth to bedrock and slope are the main limitations to use of these soils for community development.. On the Lehew soil., permeability is also a limitation for septic tank absorption fields. If this soils isl used as a site for septic tank absorp- tion fields, in places the effluent can seep to the surface downslope. EROSION AND SEDIMENT CONTROL MEASURES All vegetative and structural erosion and sedkment control practices shall be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Harndbook. STRUCTURAL PRACTICES 1. Temporary Stone Construction Entrance - 3.02 A temporary construction entrance shall be installed as noted on plan. 2. Silt Fence - 3.05 Silt fence shall be installed at the beginning of construction in areas shown on the plan and shall be inspected after each rainfall and maintained. VEGETATIVE PRACTICES 1. Topsoil Stockpile - topsoil shall be stripped and stockpiled as directed by the construction manager. 2. Topsoil stockpiR e, steep slopes and areas not receiving crushed stone or under buildings shall be reseeded and mulched immediately upon completion of grading. If, due to season or weather conditions, the permanent seeding cannot be accomp- lished, a temporary, rapid germinating mixture shall be applied. 3. If problems are experienced in establishing vegetation in certain areas such as drainage ditches, jute mesh or similar degradable protection shhall be applied, MANAGEMENT STRATEGIES 1. All E & S structures shall be in place prior to start of land disturbing actiivities in the area they serve. 2. Construction wi'.11 be sequenced so that grading operations can begin and end as quickly as possible. 3. Sediment barrieirs shall be installed prior to land disturbing activities. 4. Temporary seediing and mulching or other stabilization will follow immediately after grading. 5. Areas which are not to be disturbed will be clearly marked by flags, signs, etc, PERMANENT STABILIZATION All areas disturbers by construction shall be stabilized with permanent seeding immediately following finish grading. Seeding shall be done with Kentucky 31 Tall Fescue according to Std. & Spec. 3.32, PERMANENT SEEDING, of the handbook. MAINTENANCE 1. The silt fence barrier will be checked regularly for undermining or deterioration of the fabric. Sediment shall be removed when the level of sediment deposition reaches half way to the top of the barrier. 2. The seeded areas will be checked regularly to ensure that a good stand is maintained. Areas should be fertilized and reseeded and remulched as needed. 3. The project manager shall be responsible for mainten- ance and inspection of the E & S structures. 4. The land owner shall be responsible for maintenance and inspection of E & S structures left in place after completion of construction. 1992 STONE CONSTR UCTION ENTRANCE EXISTING GROUND 70' MI N. A FILTER CLOTH— 6' SIN. i A I SIDE ELEVATION 12, MIN.' VDOT RI COURSE AGGREGATE • MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION TiELNfUKLC(1 LUNUKL 1 L WAIN �,I"W t 70' MIN B NASHRACK I (DPTiONAL) ~� POSITIVE DRAINAGE B TO SEDIMENT TRAPPING DEVICE PLAN VIEW 12' ON. SECTION A -A EXISTING PAVEMENT 3' r 5:1 MOUNTABLE BERM (OPTIONAL) 7 LO' MIN. EXISTING PAVEMENT 10, MIN I-- SECTION B-B Source: Adapted from 1983 Maryland Standards for Soil Erosion and Sediment Control, and Va. DSWC 1. Set posts and excavate a 4"A" trench upslope along the line of posts. 3. Attach the filter fabric to the wore fence and extend -t n to `_he trench. i 2. Staple wire fencing to the Dos is . 3.02 Plate 3.02-1 4. SackfiII and compact the excavated soil. Extension of fabric and wire into the trench. Filter Fabric '41 re Lr 7 CONSTRUCTION OF A SILT FENCE Source: Adapted from Installation of Straw and Fabric )late 1.06c Filter Barriers for Sediment Control, Sherwood and 1,'yant I I AK 18E 47 Mr�P NO. �TIT,LE KE , SYMBOL TEMPORARY GRAVEL ( wl c I COMSIRUCYIGe (aTRAMCE C E _nt-H , II SILI iL 1.06 STORM DZAIv 1.08 It1LET a+lorrlon IP 115 ' TEMPORARY DIYERSIOn DI" 0.0 L 1 25 j TOVOA.:Al SEOIMEMT TRAP ST DRAI'IAGE DIVIDES LI"ITS OF CLEARING��� AND GRADING dj XENNE111 V 5UNN6R GEOMFWATE NQ., 0) RRRRR�RaRR� C C0 4) >r 07 � O U U � > >_ E O U U Z L >-- Z O O CL •� 0 \ 'i7 Z Z C OC ILL. ry O a C Z cry tK1 }. � 0 O c CD GC x � p M %. N. C .V W x o —%3 mV E W c Q I-- ti _J d N THESE DRAWINGS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAW OF THE U.S.. AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF THE ARCHITECT REVISIONS NO. 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".:`^ ,.�._ _�. __ ' 2�1 rA 11 ay) `7 I' I lam- � �; � \� i�• _____._,,, t' , t r- >r-D .� =K.- G.0 rq �a r.AJ G t � s, v, r4 £TP+4- `,.`f • �•� .W./ - I - i,► G� P:tzC -A,9-7 r:PF k FP-l\lA-TM -4y�71--M W-) �. T .__ -✓.' t�c ^ 1 i Io �%Ry �^�yQ t +�rJ Lam%{b'f,4co tAt< 7 kf twla � � .. _• ` .'�, � __ "�{ ��� �� t :�.. �/ o r� R- �y aR-�,1 Tf CaW�- 5 �� r-�s�- �c� r�l F�i�c...-�"t� �•�, g ©� 5 � � . — \ , 7g -� �r� -s S �- � ` _., r._. V ., ) t-- l ► t 1 A j" T�-4 i 'S ` ' t 7" T"�' I -,tj \``' '' �•Ft tt?A W 'f i T2 1 tit? x ► `;- Vr� ° C 417,� T Aff"RDWI, t, _. 1II--- -ZC3I 4,f� (Q �r �; fin! �� '%�►.� , t- 0) C 0� a, C U) C) O U U > L E a� c� O m a. � L ? C _O .� aj :3 O �- U . C Q N � z O O Z o D N ON O c0 •m� L X m} ,. Q C THESE DRAVViNGS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAW OF THE U S_ AND MAY NOT BE USED iN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF THE ARCHITECT REVISIONS NO. DATE BY ISSUE DATE V,, ! ci t.I DRAWN BY CHECKED BY SCALE s �3 �cf--•-- SHEET TITLE ,�A qo ' E•INA SITE PLAN JOB NUMBER SHEET NUMBER c a a/n ' .� •. ':.• .. i . �. ;:1 T.1 JtgK-., v,i nY,n {C .Ft.. t �` - - - -. .' ., � -,. ,a.. .W;6 '. � .�- � "' �:'•;' ;4 _ .. $*wM+. ,-.,..r ,, �Y ., w�.c1E..risi +�, �..w ..., .-._�k�'si.. .,.. - .. _. -, _ .._..,. -- ._ _. ... _.,. _ �.�;:^,.>,.d•, Rl 7o e pwro ft2,F- pNoz ajP2 Y All-1 • � % `�'4p-fT. ,ice oof > 0 5 A42pp'-�,,Jg 1-,4 N -� 11 -0 Ix' Al "v- 000, "XI ���, 101' 66 4e At 417 001, io e�l, 'c 41 Ile I " 100, 71, I - � r" i � \� �x ' I i �.,��, 1 I �� � '� � —1 `�� / �J\ / \'r' t . 't (/� y \ �`'� �• a 1 , ``— ' � \ � � • - � � v n O �o It *k \A N.- -1-TA vi 'A i emu✓ � _, p /Cy�p O90 \ / W DTI �h , / ? �2 fz I I Ir- pc w I TPA t4 �AIQ r-LT i A Ll A-, filcTTT7 X -T] vwx iIJ zf-, �&.ti-Tl FP — L-T, WOOO 4,.A4 ri pr-- co 0 r4 C) 0 in W' >� 0 03 c LZ J tl S` THESE DRAWINGS ARE PROTECTED' UNDER THE COMMON COPYRIGHT LAW OF THE U S AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF TSE ARCHITECT REVISIONS NO, DATE BY 4 -11� I ISSUE DATE �ill7 41 'Z f I DRAWN BY V-LI P2 CHECKED BY SCALE Ar SHEET TITLE JOB NUMBER SHEET NUMBER C@2 1 14 m Carefully Compacted Select Backfill O .D. 8" 24" STONE AGGREGATE = 4- CONCRETE AR09 CONCRETE AGGR AG ATE Carefully Compacted Select Backfill O.D. 8" 24" 't_1~ti 4"(min) CONCRETE (typical) CONCRETE CRADLE CLASS -A- irefully Compacted Select i okf ll Carefully Compacted Select Backfill I- 4- OD OD. 8" 8" eI / / j 4 2' , I / �� ..... 6" 01 .. a 1 W%C. AGGR AG ATE CONCRETE CLASS -13' CONCRETE ENCASEMENT REPAVE TO 1-1 /2 TIMES ORIGINAL THICKNESS SAW CUT TO BE MADE AT TIME OF REPLACEMENT (typ) ,8- W 18- OD l , B ACKF ILL M AT'L AS REO'D BY VDOT PERMIT (Full Depth Crushed Stone typical) 6" VDOT PAYEMENT REPLACEMENT TRENCH & BEDDING DETAILS WAS- t 8. 5- VDOT TYPE 1, -NO 21 OR 218 AGGREGATE BASE 2' MIN SM-2A BITUMINOUS CONCRETE SURFACE WEIR. -COMPACTED SUBGRADE TYPICAL PAIRKING PAVEMENT SECTION NO SCALE FIN. GRADE VARIES -SEE PLAN f c 3500 psi CONC. WALK 4" CRUSHED f N `--6" X 6" W1.4 X W1.4 W.W.F. STONE BASE t TYPICAL CONCRETE SIDEWALK SSECTION NO SCALE: ` 2" MIN. V.D.O.T. SM-2A BITUMINOUS CONCRETE SURFACE 3' 3' 20' 3' 3' IMIN.1 I IMIN.1 MIN.1 _v O ? v z IAJ � j Q � w N w / �40 L W / Qj Nm m / 44) 4e / 3 ro / 0 �03 e 14. --- Ai �, J Q' 3 - -- � A-C>M rn CH01ZD= S 07° 04)'' 35"'W �\ / 2�2.45• CNOtzD= Gila° 1645 W qo5°43'2? 5 200OZ'333 W 6:4 D k10 ZvNE W 6. 6 IV I G 50 4 N 'Pq USE ,q PG 3Z2KvCI D q4- /SBA10, RA / _ w G \\ 2709 2, qGt�,r U� ` c I26.744 ACi769 TAB( 1.17. *- Co- A - [a ZONE .. 1z-A D t3. 5(, 3, P G. Co 3 5 GiGALE '. 1 300' / m�0 n om 1905 4 �o O 1� \\ BLp6 0V) GEOKGE 15 W141TACKE 131. 35 (Z 0 A SZ¢o \ 1� :SZe-j /� c v D. B. 175, PG. 738 NEW N O E - Vq gv / \ \T'L�N / N� ZONE: K-A USE ' KESIDEHTIAL L. KOyET7 A LYNC- K E 69 /oB \,, `A� D B. 276, PG.S�1 70HE iZ-A, U`7E: AGKICULTUQAL 20N�BM/Ti E\\ R 38 B G PROPS IZT� 60U A VA Zq �a pplP v FLAN X °X / �5� �� `'/Y 4s �rE MSC F r ¢c y SCALE: I"' 300 S�Z - F09 VICINITY MAC' AHP GEHEIZAL NOTES SEE SHEET Z OF 7 Ty?_ - I� COMPACTED SUBGRA.DE 9" MIN. V.D.O.T. TYPE 1, N0. 21 OR 21 B AGGREGATE TYPICAL ACCESS ROAD - SECTION (NO SCALE) �< .L G� $ x 0 KENNETH t_ BONNER "r CERTIFICATE NO. 09274 i c, .D m c O U . c > E U 0 U U) z ~ co p O76'c Q Q_ Z > n N .1 N� c U Uj O Z �M 0 c (O p Q ��\3 - m &- 4 C ,, .0 W x H ?- Lt7 L -5 E � d RI Q THESE DRAWINGS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAW OF THE U.S.. AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF THE ARCHITECT, REVISIONS NO. DATE BY 1 IZ 4-q5o �►JN1tJlo �A'% 14-161 ISSUE DATE DRAWN BY� CHECKED BY SCALE SHEET TITLE r�A, JOB NUMBER SHEET NUMBER rtwsiw�rm v J w � 1€5 Qa � r' O PV , w" 9^'s .F�,e '! d �, iy/31r`•, {,.. '7. „�'°_� -:* w �!..{si%`-. i > i.,'; / \<,, I R\ �e \Q' W•i ! . 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R t - i � "R" k ''.e.. : •G'h •s•,»' � "ss , i ` ! r i i 1 r •� \ 1� am»P-wa.\ •` l - I e '"� g t''�' 7°s•`d'• e�..Jr. ..j.?v-� •-'�E.. °:.1' .s. i,.' 1.,�.��ww' �A"' �� .X 1� _ _ ► � _ ,.+ i ' f ° 1� C �r� ,,..�, � j� \ t,. �., [� • � V. {��'! („� !.� t i 6 i y�ar.,...,._. �..... _ r....-__.r. .. _.,..j �__,....:-....-•- � � t 'T � � �-1���•,y�. . +6+ �y i a fs A , .r •' r. I!,,,af T,y3'. , t t - ..._. f ,.,....,.y._...._ i •� 5r!r a, 1 ,f' '•', y - i j`"� _ �., `4 p �, t `' ' .,y - J '�- A t' �� ~r— *�✓i"' l ��? {•• i7 _ +�' e J'� r f, i A.e'c r THESE DRAWikG$ ARE PROTEC r. AV ` cv � �., ,. •� :.:. _ .a �` � +. - `rt r Fj THE COPYRIGHT ';.A -, .► �/ q �' ►� UNr�E E COMMON C tGH7 W Al, �.._ _.____.___ S AY NO? OtUSE iN OF THE ` ^• , - ` 1 " ;!7 I 1, �I 1 �� : :'' r rr 1 '' iJ� ' i �w�;; Ste' ANY MANNER WHA�'WER WI'fi•iOU i. • e ��\ ��'•. . ! a ''�, i t - THE EXPRFSSED WRITTEN PE'PMISSION \ (}% THE ARCHITECT - t.�`7� � t,�� f.• �-.�, � �,. '�, ., � � r,,�? �/-,.�` f� i.: , �'. •''.�`° .A ..ter' �� / '.f4w ��'"�+,i j+�• PJ Cam. —.,..�„� ��J�i l° � la¢�"=. �JR��N �►..i1 r,� �I��'fa� i�' p} �jt 1.� 1�.�►t�1�:• �Q�••t�'� r ak. f a. r • .. { �.. " Via' r� :. ; • Ems,. ,,,� ,; ,.. r. j.�' -•? y�,, . y • :ice �+i . # '.,,i j �,7�,. '`.. �" T' , e l`1 i\f S-•.w+c.�.i`� i •"�A Y "+ .a i%' . ,. '"?"Fw ! ;:t.+y /' '''�`� .•.., `.w ,�{.. F ;;u , t' • i �. _ yr R.. -c REVISIONS NO 1 DATE i �',r i�J�iE' V,l1TE , DRAWN 8Y CHECKED BY . SCALE SHEET. i`tTl:� .i'�E3 NUt�48EFi SHr"_E"" NUMBER _ TIMBER RIDGE SCHOOL EROSION & SEDIMENT NARRATIVE 14 August 1995 PROJECT DESCRIPTION This project consists of grading approximately 1.4 acres of a 126.244 acre site for construction of an administration and professional service building. The project is located near. Rt. 522 at Reynolds Store in Gainesboro District, Frederick County, Virginia. EXISTING SITE. CONDITIONS The site is wooded and is adjacent to other facilities of the school complex. ADJACENT PROPERTY The site is surrounded by other land of the Timber Ridge facility. SOILS The soil is Gainesboro - Mehew Complex (18-C) with 7 to 15% slopes. The surface layer :is reddish brown channery loam, 8 inches thick. The subsoil to d�a depth of about 26 inches, is reddish brown channery silt loiam and very channery silty clay loam. The substratum, to a depith of 32 inches, is reddish brown extremely channery silty clay 'loam. Shale bedrock is a depth of 32 inches. Typically, the surface layer of the Lehew soil is reddish brown channery fine sandy loam about 9 inches thick. The subsoil, to a depth of about 216 inches is reddish brown very channery and extremely flaggy :fine sandy loam. The substratum, to a depth of 35 inches, is reddish brown extremely flaggy fine sandy loam. Hard sandstone bedrock is at a depth of 35 inches. Included with these soils in mapping are intermingled areas of Berks and Dekalb soils. The included soils make up 25% of the map unit. Permeability is moderately rapid in the Gainesboro soil and rapid in the Lehew soil. The available water capacity is very low in both soils. Runoff is medium to rapid. The erosion hazard is sever. The shrink -swell potential in the subsoil is low. Most areas of these soils are used as woodland. Some areas are used for pasture. A few areas are used for hay and culti- vated crops. These soils are moderatel,.y well suited to cultivated crops. Erosion is a severe hazaard if cultivated crops are grown. Controlling erosion is .a major management concern. The soils are droughty during dry periods. Using conservation tillage, growing cover crops, including grasses and legumes in the cropping system, and crap :residue management help to improve soil tilth and to increase organic matter content in the surface layer, to reduce (,rusting, to increase water infiltration, and to control erosion. Depth to bedrock and slope are the main limitations to use of these soils for community development. On the Lehew soil, permeability is also a limitation for septic tank absorption fields. If this soils is used as a site for septic tank absorp- tion fields, in places the effluent can seep to the surface downslope. EROSION AND SEDIMENT CONTROL MIEASURES All vegetative and struct-ural erosion and sediment control practices shall be constructedi and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook. STRUCTURAL PRACTICES 1. Temporary Stone Construction Entrance - 3.02 A temporary construction entrance shall be installed as noted on plan. 2. Silt Fence - 3.05 Silt fence shall be installed at the beginning of construction in areas shown on the plan and shall be inspected after each rainfall and maintained. VEGETATIVE PRACTICES 1. Topsoil Stockpile - topsoil shall be stripped and stockpiled as directed by the construction manager. 2. Topsoil stockpile, steep slopes and areas not receiving crushed stone or under buildings shall be reseeded and mulched immediately upon completion of grading. If, due to season or weather conditions, the permarnent seeding cannot be accomp- lished, a temporary, rapid germinating mixture shall be applied. 3. If problems are experiienced in establishing vegetation in certain areas such as drainage ditches, jute mesh or similar degradable protection shall be applied. MANAGEMENT STRATEGIES 1. All E & S structures shall be in place prior to start of land disturbing activities in the area they serve. 2. Construction will be sequenced so that grading operations can begin and end as quickly as possible. 3. Sediment barriers shaRl be installed prior to land disturbing activities. 4. Temporary seeding and mulching or other stabilization will follow immediately after grading. 5. Areas which are not to be disturbed will be clearly marked by flags, signs, etc. PERMANENT STABILIZATION All areas disturbed by construction shall be stabilized with permanent seeding immediately following finish grading. Seeding small be done with Kentucky 31 Tall Fescue according to Std. & Spec. 3.32, PERMANENT SEEDING, of the handbook. MAINTENANCE 1. The silt fence barrieir will be checked regularly for undermining or deterioration cof the fabric. Sediment shall. be removed when the level of sediiment deposition reaches half way to the top of the barrier. 2. The seeded areas will be checked regularly to ensure that a good stand is maintained. Areas should be fertilized and reseeded and remulched as needed. 3. The project manager shall be responsible for mainten- ance and inspection of the E & S structures. 4. The land owner shall be responsible for maintenance and inspection of E & S structures left in place after completion of construction. 1992 STONE CONSTRUCTION ENTRANCE EXISTING GROUND 10' MIN. FILTER CLOTH— a MIN. i A 1 SIDE ELEVATION 12' MIN, ` VDOT KI COURSE AGGREGATE • MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION 70, MIN. e NASHRACK (OPTIONAL) POSITIVE DRAINAGE B J TO SEDIMENT TRAPPING DEVICE PLAN VIEW 12' INN. 1-- SECTION A -A REIW UXt_LU LUryLXL t L LWAIN JYALL EXISTING PAVEMENT 518�. 5:1 _.. L_ SECTION B--B Source: Adapted from 1983 Maryland Standards for Soil Erosion and Sediment Control, and Va. DSWC 1. Set posts and excavate a 4"x4" trench upslope along the line of posts. 3. Attach the Filter ;abric to the w, re fence and extend ,t nto the trench. 2. Staple wire fencing to the posts. 3.02 Plate 3.02-1 4. Back;il'. and compact the excavated soil. Lxtension of fabric and wire into the trench. Filter Fabric -� i4i re _ 1 - ==�II71_ CONSTRUCTION OF A SILT FENCE Source: Adapted from Installation of Straw and Fabric Plate 1.06c Filter Barriers for Sediment -Control , Sherwood and N'Yant hS IBE NO. TITLE KEY SYMBOL ; j0 .1 TEhvoRART cluVE: I � 1I! CaNSIRUC*ICn [aiRAMLf 01E I� 1.06 S INlE1 PROTI:';on 1P i o0 115 SIOn OI" DD ..►...�.. I 1 `1rj TCIMOA:•17 SEDIMENT TRAP ST w.+i�.:•�. DRAI!IAGE -DIVIDES LIMITS OF CLEARING AND GRADING C m s= O U > L E W N Z F- Z p O CU •C Q tlo Z Q C tL N O � � c Z !2 M ++ (LS :3 =0 Q e .0 QM ' •C a Lo ._ • •V '' W x O n3\& m E -0 -� E v� c>�- CO -� qq*• C* Q °� w d THESE DRAWINGS ARE PROTECTED UNDER THE COMMON COPYRIGHT LAW OF THE U S AND MAY NOT BE USED IN ANY MANNER WHATSOEVER WITHOUT THE EXPRESSED WRITTEN PERMISSION OF THE ARCHITECT REVISIONS NO. DATE BY ISSUE DATE DRAWN BY V-11 CHECKED BY SCALE SHEET TITLE iQ���1 61`�_ �. v 14f-�5-116. T„r r JOB NUMBER SHEET NUMBER C95