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HomeMy WebLinkAboutWPO202000021 Plan - Revision Erosion Control Plan 2020-03-31NORTH STATE SOUTH GRID NAD-83 930 g40 e W .,o 0 S 89'41'13" E 209.61' e �O a ono � N 4`1 w p�0 1 10!)111 ,�pnA 1060 1'0 10 10g0 10p0 .�o gg0 gj0 gg0 gg0 1p00 1010 10 1pg0 1130 1p50 60 N0 1pj0 p 1p� Ogp 1 �0 �1 N-a) 0 1160 0 0 o 1170 0 1i0 0 NOTES: 1.) SURVEY PREPARED FOR: DAVID C. WEYHER AND USA C. WHITE 2.) HORIZONTAL DATUM: NAD-83 VIRGINIA SOUTH ZONE 3.) VERTICAL DATUM: NAVD-88 4.) UNLESS OTHERWISE NOTED TOPOGRAPHIC SURVEY SHOWN HEREON WAS COMPILIED BY VIRGINIA RESORCE AND PROVIDED BY ROUDABUSH AND GALE ASSOCIATES, INC. 5.) NO UNDERGROUND INVESTIGATION OF UTILITIES WAS PERFORMED. THE CONTRACTOR SHALL DETERMINE THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK. THE CONTRACTOR AGREES TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT BE OCCASIONED BY HIS OR HER FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL UNDERGROUND UTILITIES. 6.) THE STREAM BUFFER SHOWN HEREON SHALL BE MANAGED IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PROTECTION ORDINANCE. 7.) SITE LIES WITHIN FLOOD ZONE "X"; NOT A F.E.M.A. DEFINED 100-YEAR FLOOD PLAIN. 8.) PROPERTY MAY BE SUBJECT TO ADDITIONAL RESTRICTIONS OF RECORD. 9.) ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSTALLED IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL PERMITS, IMPLEMENTATION, AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL MEASURES SHOWN HEREON, 10.) DRAINAGE ANALYSIS PROVIDED BY ALAN G. FRANKLIN, PROJECT BUNDORAN LOT 2B DATED 3/27/2020 AND ATTACHED HERETO. SEE SHEET 4.00 11.) LIMITS OF DISTURBANCE SHOWN HEREON = 0.92 ACRES. �O 90 0 0 0 0 �o 56�92¢" o 0 �jSS9, o �000 `Ol �1 0 0 1160 1170 1180 GENERAL CONSTRUCTION NOTES: 1.) PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY170 EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS o PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES - OCCUR THE REQUIREMENTS OF THE PERMIT SHALL GOVERN.- 2). ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF �o VDOT UNLESS OTHERWISE NOTED. 3.) EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION o0 CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. �� oo' ,moo 4.) ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. 5.) THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL:VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED. 6.) PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 7.) ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. 8.) UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE - CLASS III. 9.) ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). e1��1i► . • �•\ I \ \ o \ � i \ aoijk� PLAN 1 " = 30' TERVAL = 2' 0 w TMP 08600-00-00-04800 DAVID C. WEYHER AND LISA C. WHITE D.B. 5262, PG. 208 D.B. 3486, PG. 87, 97 (PLAT) 31.545 ACRES �o eo .,o .° N 8 SOT a �o 930 920 O�G F oFC' 2 1 �o 910 900 - EAST DETAIL SUNRISE - SETSET SCALE: 1" = 40' TREE SCHEDULE TREE NO. SIZE TYPE 484 22" TULIP POPLAR 485 19" TULIP POPLAR 486 17" TULIP POPLAR 487 14" TULIP POPLAR 488 20" TULIP POPLAR 489 27" TULIP POPLAR 490 13" TULIP POPLAR 491 30" TULIP POPLAR 492 21" TULIP POPLAR 493 12" TULIP POPLAR 494 13" TULIP POPLAR 495 11" TULIP POPLAR 496 24" TULIP POPLAR 497 18" OAK 498 28" OAK 499 8" OAK 500 9" HICKORY 501 35" RED OAK 502 28" RED OAK 503 8" HICKORY 504 28" TULIP POPLAR 505 27" TULIP POPLAR 506 16" TULIP POPLAR 507 29" TULIP POPLAR 508 11" HICKORY 509 19" MAPLE 510 11" MAPLE 511 8" MAPLE 512 8" MAPLE 513 9" HICKORY 514 9" GUM 515 20" TULIP POPLAR 516 17" TULIP POPLAR 517 25" MAPLE 518 9" HICKORY 519 9" GUM 520 18" TULIP POPLAR 521 11" GUM 522 15" MAPLE 523 18" MAPLE 524 12" HICKORY TREE NO. SIZE TYPE 525 17" TULIP POPLAR 526 13" MAPLE 527 15" RED OAK 528 26" WHITE OAK 529 16" MAPLE 530 15" MAPLE 531 17" TULIP POPLAR 532 15" MAPLE 533 20" MAPLE 534 10" TULIP POPLAR 538 18" HICKORY 539 8" HICKORY 540 9" HICKORY 541 18" HICKORY 542 21" OAK 543 15" GUM 544 21" TULIP POPLAR 545 18" TULIP POPLAR 546 36" RED OAK 547 27" TULIP POPLAR 548 8" TULIP POPLAR 549 8" TULIP POPLAR 550 9" HICKORY 551 21" MAPLE 552 12" TULIP POPLAR 553 18" TULIP POPLAR 554 14" TULIP POPLAR 555 8" HICKORY 556 8" MAPLE 557 23" HICKORY 558 10" HICKORY 559 8" HICKORY 560 14" OAK 561 28" TULIP POPLAR 562 24" HICKORY 563 10" MAPLE 564 17" MAPLE 565 9" HICKORY 566 18" TULIP POPLAR 567 13" TULIP POPLAR 568 13" TULIP POPLAR 569 12" TULIP POPLAR I k' III 502 485 /488 / 486 487j _48 491 6508 \�d� ' 503 �4 / � 5m- . i / 2 5i020 499 494 518 4 1 522 496 530 , 1529 5 512 -- 498 \" ` 531 528 24 516 14 / — �-_ _— 525 60 5 "jj " �/ 539 52 \ 556� ! / 55 55 5 5 538 555 562 4 \ \ OME SITE / 56 566 / 542 \ i / \ AREA \ \ 56 544 \ \ \ \ \ 554 ... S68 546 ; 64 53 / / Nril$ / 551 547 C 30,000 S.F. \ \/ 552( 54 —BUILDING SITE R \ IN, TREE LOCATIO __� -7`\�`—\ \ SCALE: 1 = 50 00 CONTOUR INTERVAL = 2' w � 864o . 830 \ • \ goo • \ \ S 753 . 3'23 \ " \ E 484.49'\ \ 820 - o \ 8-10 - - - G� \' 110 4ccSygNN 0 0 0 � �� \• s (pR�ss �04/ �NF 00 /J' F'� 800 \ \ 60S gTFJ MFNT o \ • \ 00 o \ � °° o ao o o C'. � Il Q 890 0 Z90 8i0 8513 e�oe°;�e $a° ° RFSF 780 \ \ 770 LEGEND: \ \ SBL = SETBACK LINE 790 \ D.B. = DEED BOOK Soo PG. = PAGE 810 WL = PROPOSED WATER LINE 820 F.F.E. = FINISH FLOOR ELEVATION 830 7900 630 = EXISTING CONTOURS ELEVATION 840 oro��oIs ��1 g4 F63-01 = PROPOSED CONTOUR �'o 0 630.0 _ PROPOSED SPOT ELEVATION +/ @ = DRAIN SPOUT CURVE TABLE RLO =ROOF LEADER OUTFACE NO. DELTA RADIUS ARC TANGENT CH. BEARING ICHORD = TREE TO BE REMOVED C1 62'12'00" 187.48' 203.52' 113,09' S 29'51'48" E 193.68' C2 5853'44" 494.95' 508.77' 279.44' S 31'30'58" E 486.67' KIRK HQUGHES a ASSOCIATES LAND SURVEYORS AND PLANNERS 220 EAST HIGH STREET CHARLOTTESVILLE, VA. 22902 (804) 296-6942 �sm z O W LL I Q c\1 w U_ 0 w Q C� z 0 W J mJ � W J W Q U) FILE NO.: 2020-011 DWG. NO.: TUNDORAN FARMILOT_62\2020011-01.DWG Ar 'TH OF P o� r� C-) G. V. "KIRK" HUGHES 9 LIC. NO. 1458 l�ND S UR0�04 DATE: JANUARY 14, 2020 REVISED: MARCH 31, 2020 SCALE: HORIZONTAL 1" =100' CONTOUR INTERVAL = 5' SHEET TITLE: SITE PLAN SHEET NO.: 1.00 O .,rye"•" ry':.�'+� �..�•..+., ` � \ \ / .. 8 k / —J / 9 P J � O V \ 8 / 0 f� D / r O v O O .O , \ O o / / 1 0 n: S / G Q P _ •r I \ _ — / o 0 / 0 4 5' O e \ I i I / ':`'1:x' •t / o J un;'tY I R 70' •fi;5'S:iSe:.ie •.:: / 8 0 N �•' R- eG — •en Cry O 7 4 � o •5' \ c. a:•. / - I I / 0 / •'•:lien 0 i 0 •o 0' O Q :.k.n j R - 8 3'N V ' � r• / Q S 0 i I QL 9 •O 0 • O- A �^ GV' I � _ I _ \ q•ty;y p O 3 6• \ S ryk:7t •s O \ I O a 0 i W 1 I I 0 o 0 x Q G 0 1 s "J N 0' o — d O , � 1 1 \ I 0 , 0 n 0 k`��r't.•, 0 yt:s `:!`;ire;*•?•`•`•'•v O u G r 0 _ iry,ry:. •y \ i ,tiu'iex 1 \ O j S 1 \ J I � e� I J / � / I s I � •� V •ate s. 4 0 O.. I 0 `b• 1 C � 1 O 0 - 6 0 > _5 o Q 'S• .r I I I I I— I 5 ^ 0• col I 1 / I \ \ I `•'n ,vui I I I 1 — C J�u , i 1 1 I O ° I I I I I 7 9 s .x •s:ti,e d' �J ti I i \ 0 6 I 'Y !/ F I 1 \o \ r 0 I � I / 1 794 • � O O o� 860 860 E - �_ -9.91 0 � � � I� 840 g2 = 1.72% CURVE LEN = 50.00 840 � � � +50.00 N � o � K = 4.30 � � � 00 °, ,,° ao r � r° E - 0.73 � � 1 = - 4.00 � a`no rn °o cD °o II 0 � 4 ago � � � + � 820 % o+ II � II + � N II 820 g2 = -10.7 II w II � w II m CURVE LEN 20.00 Q v w r w w � w � w - Ul 800 � 800 > > > -4.00% -------- � 10.74 � 3.25� 7.42% 4.70% 9.9 780 ----- 780 �� �— ------- 0 0 � TYPICAL DRIVEWAY CROSS SECTIONS 0 0 NOT TO SCALE VP � rn o cv STA = 13+21.36 `� � FILL SECTION � CUT SECTION 760 VPI STA = 10+82. VPI STA = 12+14.98 VP EL - 792.00 - II � �12c.�c���`'92 t3l 760 Q QJg1 _ II =-10.74%��_� VPI EL = 787.00 g1 = 4.70% Q � �wTRAVELWAY = -9.91%AT 6BELOW STREAM911.72% CUVE7LEN20.00 � � � CURVE LEN = 20. 0 g2 - 4.70% o 2% EXISTING � o � CURVE LEN = 50:0 K 7.35 w w — — _ — — — � GRADE 740 = — E 0.07 M� NV UT = 778,7 � E = 0.19 EXISTING GRADE I � 720 a 720 I / � 6" - #57 GRAVEL 2" TYPE SM-9.5A '?i'�•ry�M�l �"�if�f��'k��A �`,Mri,'Q!i'f��% 700 � III�`I`•��`.• — — 8" - VDOT 21A —� I —I I—III—� 700 �III=1 � — —III—III—III—ly GRAVEL BASE COMPACTED SUBGRADE �LI � � ln � M � N N I� c° Cfl N 95% STD. PROCTOR � � �ri 8+50 9+00 9+50 10+00 10+50 11 +00 11 +50 12+00 12+50 13+00 13+50 14+00 14+50 KIRK HUGHES ASSOCIATES LAND SURVEYORS AND PLANNERS 818 220 EAST HIGH STREET CHARLOTTESVILLE, VA. 22902 - 816 (804) 296-694200 sal ZLl Z O U J zt UL S NG w m J AIT Q U_ V ) CIO J Q w IIVFIELD U) z w J m� w QLo FILE NO.: 2020-011 DWG. NO.: 16UNDORAN FARMILOT 62\2020011-01.DWG NORTH STATE SOUTH GRID VPI EE NAD-83 DATE: JANUARY 14, 2020 REVISED: MARCH 31, 2020 SCALE: HORIZONTAL: 1"=20' VERTICAL:1" = 20' CONTOUR INTERVAL = 2' SHEET TITLE: PLAN ANDGo PRLri OFILE SHEET NO.: 2.00 LOD��COD F� I / 0q too 820 818 816 � � z p/ R/ / 9 .i 4 \ 8 1 812 O / / S / / / / G 0 / / P 8 i S - / / 8 .90 yea S.c� 786 S " 1992 3.05 CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. i r Gj FLOW -I IIIII 4" 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. BACKFILL AND COMPACT THE FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. II J� FLOW EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-1 0 S < U \ i O O i O - O � 7 '`'dtiT'�`•'e1*.. � O t 1 I -P CD \ \ O \ I i 0 C IJ i \ R 7 1 i o I J d \ R 8 3' N 7 \ C.rI cn ° Q et O t f \i n � a n \ � 1-10 ns o'( (;a; -0 0; S/ /SZ 0 RE -SERVED DRA IAIFIELD TREES OUTSIDE OF\ �\ \ \ THE LIMITS OF DISTU \\ ARERBANC \\ I v TO BE PRESERVED 1992 3.13 TEMPORARY SEDIMENT TRAP ORIGINAL VARIABLE GROUND I ELEV. B FA 67 CU. YD./ACRE + - N VARIABLE N � 67 CU.. YD./ACRE 4' (EXCAVATED) FILTER CLOTH ORIGINAL GROUND D ELEV. *SEE PLATE 3.13-1 COARSE AGGREGATE}{ CLASS I RIPRAP CROSS SECTION OF, OUTLET CLASS I RIPRAP �� LENGTH (IN FEET) _ �" �14'� (IX DRAINAGE AREA (IN AC.) L DIVERSION DIKE ' COARSE AGGREGATE* EXCAVATED 1 / FILTER CLOTH AREA "COARSE AGGREGATE SHALL BE VDOT OR #3, #357 #5 OUTLET (PERSPECTIVE VIEW) Source: Va. DSWC Plate 3.13-2 LEGEND: SBL = SETBACK LINE D.B. = DEED BOOK CE = 3.02 CONSTRUCTION ENTRANCE E&S = EROSION AND SEDIMENT PG. = PAGE x 630 = PROPOSED ELEVATIONS IRF = IRON ROD FOUND SF = 3.05 SILT FENCE 630 = EXISTING ELEVATIONS F.F.E. = FINISH FLOOR ELEVATION CIP = 3.08 CULVERT INLET PROTECTION LOD = LIMITS OF DISTURBANCE ST = 3.13 SEDITMENT TRAP 1992 3.13 MINIMUM TOP WID TH (W) REQUIRED FOR SEDIMENT TRAP EMBANKMENTS ACCORDING TO HEIGHT OF I EMBANKMENT (FEET) H HO W 1.5 0.5 2.0 1.0 2.0 2.0 2.5 1.5 3.0 2.0 2.5 2.5 ni 3.5 2.5 H O H 4.0 3.0 3.0 3.0 4.5 3.5 5.0 4.0 4.0 4.5 EXCAVATED AREA � �• I1-" MAX. DEPTH = 4' ��� ORIGINAL GROUND ELEV. Source: Va. DSWC Plate 3.13-1 TEMPORARY DIVERSION DIKE Compacted Soil 16' min. -Flow loll-.L� - 4.5' min. ►I Source: Va. DSWC Plate 3.09-1 1992 3.36 TYPICAL TREATMENT - z SOIL STABILIZATION MATTING SLOPE INSTALLATION 9- FILL SLOPE SECTION- SOIL STABILIZATION MATS SHOULD O SLOPE SURFACE BE INSTALLED VERTICALLY 5• J:`= Q DOWNSLOPE FOR BEST RESULTS. SHALL BE SMOOTH �� p i AND FREE OF � Q ROCKS, LUMPS OF DIRT, GRASS AND �j 9 i STICKS. MAT SHALL BE PLACED FLAT ON SURFACE FOR PROPER SOIL CONTACT. AD Q 0'Ne, Q - � Q Q DIRT SHALL BE TAMPERED PRIOR r TO LAYING TOP - LAP ( ER I TOE BERM MAINTAIN SLOPE ANGLE TRENCH INTO BERM AND PROGRESS DOWNSLOPE TOP OF SLOPE LINING SLOPE LINING CUT SLOPE (WET SLOPE) ::,;.- (DRY SLOPE) TREATMENT - 2 POLYPROPELYENE 2' NON -WOVEN (NEEDLE PUNCHED) TREATMENT - 2 GEOTEXTILE FILTER �1 TFR S V �GF<EERi CLOTH (BEHIND A8 (PQ TREATMENT - 2) pF W.2 SOIL �� BOTTOM OF FILL SLOPE y BOTTOM OF CUT SLOPE BOTTOM OF CUT SLOPE 4' OR SHOULDER BREAK POINT Source: VDOT Road and Bridge Standards Plate 3.36-5 1992 3.02 STONE CONSTRUCTION ENTRANCE 70' MIN. EXISTING A 3. PAVEMENT r 5:1 FILTER CLOTH 6 MIN. A MOUNTABLE BERM (OPTIONAL) SIDE ELEVATION EXISTING GROUND 70' MIN. B WASHRACK 10' MIN. (OPTIONAL) 10' MIN. 12' MIN, I+-- EXISTING PAVEMENT 7- VDDT 61 I POSITIVE DRAINAGE 10' MIN. COURSE AGGREGATE B TO SEDIMENT I TRAPPING DEVICE MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS PLAN VIEW OPERATION 12' MIN. Zr MIN. = 3° MIN. FILTER CLOTH SECTION A -A h REINFORCED CONCRETE DRAIN SPACE SECTION B-B Source: Adapted from 1983 Maryland Standards for Soil Plate 3.02-1 Erosion and Sediment Control, and Va. DSWC z O U J ULcc C\1 w Z m m CU F- �N rr' F- U) 0 0 J Q w Q z Q w LU Q U) HSG E3 MAMAG AREA 1� CD. 7-- _J ��✓ �- `ono fay �// �/ /l l TC y1�� �/ f / / J f �/f J�..✓ '� J114A f Fc z/r, ✓ j j / /// //i ///�/, �f i / /// � -SHA LOWCO\NCE"TED) {/ 000 _ 900 ' r �- __ �_ / / F F - J j � J/) �, ? � � � � � \ � .�� � --� i---- -BUILDING '`� � �- � °� 1 � � 1� `��' � � 4 J// � _ � � / 1 '� 1 � / � 1 J�� \ .,.y ✓ . �� ---__ SITE ' 1 �.� -- �95'. 8%a �� '�• �� \\ HSG A / SCALE:1" = 200' HSG A BUILDINGITF � 1 SOILS DIVIDE, TYP 1 '� _ �., � f 1 �, � � <,� V ~ PROPOSED 1 4;?,CULVE�RT l HSG Ei `- - .N, �� r �^ )t Watershed ID: 48" Culvert Drainage Area. 42.00 Acres c-factor: 0.27 (see worksheet) tc: 19.21 runs. (see worksheet) Q(2)t 34.48 cfs 01 45.95 efs Q(100): 61.16 Time of Concentration Worksheet 6 Source- Seelye Chart as modified in VDOT Drainage Manual (Fig. 5-1.1 on Page 1-13E) Aotes: ! Length of overland flow sh eys <= 200 It ?; Calculate a separate Tc for each ground cover condition e,'ong the flowpath 200.00 Enter Length of Strip (ft) Sample "C" values: : .. 22.00 Enter Slope (% or 8t100ft) 0.22 Dense grass 0,22 Enter Rational Method'C' %slue 0,28 Average grass 0,36 Poor grass "PEI Result Tc (minutes) 0.48 Bare soil 0.90 Pavement Date: 342712C Designer: AGF c-factor Worksheet I c Shallow Concentrated Flow Time t 1 Source: SCS Velocity Graph as published in Virginia Erosion and G© Sediment Control Handbook. Third Edition (Plate 5-2 on Page V-12) Notes' Alan G. Franklin 1) t4Pat intended for Nell-dafined channels - see channel flow calculation 04 tjafarea separate Tc for each ground cover candtion along the flowpath p Lic.. No. 35326 W Enter Larger of Flow (ft)�4,1 Enter Slope (% a 8/10LM1) Q f2[a2Q 'S 1.87 Result To (minutes) IF UNPAVED 1.42 Result To (minutes) IF PAVED (� j V Channel Flow Time 017vr A L Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig. 1.S.1.2 on Page 1-14) Notes: 1) For small drainage basins. 2) For concrete channels, use 0.2'Tc 9T5.00 Enter Length of Flow (ft) 6206 Enter Height of most remote point along flow path above outlet 4.71 Result Te (minutes) 6.1 Rainfall Intensity (Albemarle County, Virginia) 2 19.2 3.0 10 19.2 4-0 100 19.2 5-4 A.coe.a'able values for duration are between 5 end 60 annutes. Use values oulside this ranae at risk. Culvert Report Hyc rafia Express Extension for Aulodssk& AutoCAD® Civil 3D® by Awwdesk, Inc. Wednesday, ,Apr + 2020 Bundvran Lot 26 42 Inch HDPE: 10•yr Storrn Event Invert Elev Dn (I = 778.00 Calculations Pipe Length (ft) = 40.00 Qmin (cfs) = 45.92 Slope (%) = 5,00 Qmax (of$) = 45.95 Invert Elev Up (ft) = 780.00 Tailwater Elev (ft) = (dc+D)12 Rise (in) = 42.0 Shape = Circular Highlighted Span (in) = 42.0 QtotaI (cis) = 45,92 No, Barrels = 1 Qpipe (cis) = 45.92 n-Value = 0,012 Qovertop (cfs) = 0.00 Culvert Type = Circular Concrete Veloc Dn (ftls) = 5.55 Culvert Entrance = Square edge wlheadwall (C) veloc Up (ftJs) _ 7.66 Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 780.81 HGL Up (ft) = 782.11 Embankment Hw EIeV (ft) = 783.14 Top Elevation (ft) = 786.33 Hw/D (ft) = 0.90 Top Width (ft) = 12.00 Flow Regime = Inlet Control Crest Width (ft) = 50.00 er.!. e, r*- Lo ie R Ir�h MDPF W). S" 5,W '"J,e M. r,,,, M* KIRK HUGHES ASSOCIATES LAND SURVEYORS AND PLANNERS 220 EAST HIGH STREET CHARLOTTESVILLE, VA. 22902 (804) 296-6942 z Q O Q z Z) co FILE NO.: 2020-011 DWG. NO.: 1BUNDORAN FARMILOT_B2\2020011-01.DWG I DATE: JANUARY 14, 2020 I REVISED: MARCH 31, 2020 SCALE: HORIZONTAL 1" = 200' SHEET TITLE: DRAINAGE ANALYSIS SHEET NO.: 4.00