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Home My WebLink About20191484 Ver 1_Buffer question - B-4788 (Pitt Co)_20200923 Carpenter,Kristi From:Dilday, Jason L Sent:Monday, September 23, 2019 10:28 AM To:Ward, Garcy Subject:Buffer question - B-4788 (Pitt Co) Attachments:Page from B-4788_Permit Drawings_20190917.pdf Garcy, I am working on a permit application for the replacement of Bridge 171 over Johnson Mill Run on SR 1418, Pitt County. Could you take a look at the attached drawing and tell me if this is allowable? The SMP has he following explanation for the design: Stormwater runoff from the proposed bridge will flow to two traffic bearing grated inlets at the downgrade end of the bridge and will be diffused with a riprap pad at the proposed pipe outlets inside proposed ditches. The proposed bridge deck runoff is discharged as far away from the stream and at the lowest velocities as practicable. Note that the storm drainage outlets are located inside buffer zone 2. It was not practicable to outlet this bridge runoff outside of buffer zone 2 due to site constraints (driveways in the southwest and southeast quadrants). This outlet discharge, however, would be considered diffuse flow as the quantity of flow is very low (0.2-0.3 cfs) with outlet velocities from the rip-rap pads less than 0.5 ft/s (see sheet 2 of 2). This would allow for more pollutant removal than the existing condition, as the existing bridge discharged the runoff directly into Johnsons Mill Run through deck drains. Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. 1 DETAIL 1 DETAIL 2 DETAIL 3 DETAIL 4 PROJECT REFERENCE NO. SHEET NO. RIP-RAP AT EMBANKMENT SPECIAL LATERAL'V'DITCH SPECIAL LATERAL BASE DITCH SPECIAL LATERAL'V'DITCH 17BP.2.R.92 04 (Nor ro Scole) I Not to Scale) (Not to Scale) (Nor to Scale) ° tamin. RMI SHEET NO. � KI ALLOWABLE IMPACTS ZONE 1 r Na Ditch I ,of Fill Fill ROADWAY DESIGN HYDRAULICS Grade 15/ Narur ___L o.:\e, Fill Gound ) TD 3'\wyes Slop. rural 3• slope ENGINEER ENGINEER Ground 3.) D tk�ye Slope { F Ground :) D \\\\\\\\ Lid Min.D= 1.0 Ft. d \\\\\\\\ ALLOWABLE IMPACTS ZONE 2 B= 2.0 H. Geareana Xs.xxxxx Min.D= 1.0 Ft. Min.D= 1.0 Ft. Type of Liner= Close'I'Rip-Rap Max.d= 1.0 H. Type of Liner= Class'B'Rip-Rap FROM -L-STA.13+38 TO STA.13+86 LT FROM -L-STA.11+00 TO STA.12+75 LT FROM -L-STA.12+75 TO STA.13+64 LT FROM -DRV-STA.10+26 TO STA.10+50 LT FROM -L-STA.13+15 TO STA.13+48 RT FROM -L-STA.11+50 TO STA.12+75 RT FROM -L-STA.12+75 TO STA.13+31 RT FROM -DRV-STA.10+23 TO STA.10+50 RT FROM -L-STA.14+09 TO STA.14+42 LT FROM -L-STA.14+20 TO STA.15+50 LT FROM -L-STA.14+00 TO STA.14+50 RT FROM -L-STA.13+67 TO STA.14+25 RT FROM -L-STA.14+50 TO STA.15+25 RT DOCUMENT NOT CONSIDERED FINAL BEGIN STATE PROJECT 17BP.2.R.92 N �UNLESS�� G$ENGINEERS 4 ALL SIGNERCOMPLETED -L- POT Sta.10+65.00 SITE I AD g� ENGINEERS 706 RALEIGH,NC 27603 CORP.HILLSBOROUGH ST.STE.200 IIXOI O O R 2�_ LNSE NO.:C-0275 CE BUFFER IMPACTS YARDLEY LAMONT MORNING ANDRES CASTILLO HELAREZ DB 2996 PG 08 DB 3302 PG 856 MB 22 PG 197 -L- PC Ste.13+27.52 RIP-RAP AT - EMBANKMENT SEE iI''IP IRI-RAP END STATE PROJECT 17BP.2.R.92 GEOTEXTILE RIP-RAP AT -L- POT Sta. 16+61.00 e EST.60 SY EMBANKMENT L 1 SPEC.LAT.BASE / CLASSE'I'RIP-RAP DITCH r / EST.20 TONS SEE DETAIL 3 I CLASS II RIP-RAP GEOTEXTILE / STRUCTURE PAY ITEM r-� Esr.ao SY -L- PT $to.15+44.75 CLASS'B'RIP-RAP SHED / 4y L t EST.2 TONS I r 1 I _ GEOTEXTILE • / I EST.7 SY u,u, J O1 15"RCP-IV `' ��/ ? AP. 4 /• 1 ISFO /J / /, MARY HARRISNAFKINSON HEIRS -L- POT Ste.12+2829 = 7 SPEC.LAT.'V' -DRY- POT Ste.10+00.00 i — �e DITCH � 1 Q� A.o „. SEE DETAIL PERMIT DRAWING IVY DO NOT DISTURB I m�e /,`5 SHEET 2 OF 5 III I I CONC.PAD /; V £3 0 €3 G3 £3 II I J P� \ I I /� / \ to ► _ ^1� _ C 1 Q I • SPEC.LAT.'V' t Q 1 < �/ /i, t* / EEETAIL21 iE��— 44 ---C C iiii /AT-1 "r=//./// r ., a' / 1�•� C C + >( R C 4 s :�j��ar.��r�t�r 9^ orr\�♦//_r _ `'c'�rriiT!•l�'t� �� + _ IS'RCP _ C C REMOVE , ® ® v..'�r1 P_ r � RED O �{�� RETAIN IB RCF -I__ R 'EMOV /I `� GREU TL-0 \� \ F _- _ F TF7/ Mr1111111-11.11.— ' 'r L 'FDP .. _t 911P `�/f!N - IN FDPS --- _ 2'FDPS _ - - —- -_ ` ---AillEM FDPS `FiA� _• � • ...,> �' - -- -_ - r _— - t BEGIN SBG 40 TB2GI �V f // / / // r `- /5+00 r o ' m ^I m o 13+19.61 i y / k � � END SBG ! // / _L- I N 25'TYP. �+ sc 13+33.22 �` r / i I / I Jl N l6'03'07,9"y� I r N /�J'S�55.�"� END I +33.BL-3 Al r+ P / i // j r m m m g 25 TYP. W N SR 1418(STATOR HOUSE Rbl 20 857 ` 73 07'05A"E BEy+94 47 13+14.63 / // •p r 1` o k N ITN,rB2Gl �l � / / / _�/ t:�!�� )ro j F -V EFZS-w-_- c-�., I ��. -/ F -`1I FDPS / fBPS- FDPS „ A --- ---- • o c F b Fc �-- :q -- \ -- -_ , 7"—,=1 w-_ /��alw , ---� C_ �.,i 81 _ �, ' iF -� c-F wF �r4. ,� r O GREU TO-- 15 �1� F - r �e.�F T4 a > . rye.i.i6,1, 4.4 � �,�e •�i2 T . I - --�CEFIOVE 100'TAPER 100'TAPER C C 'air ,&n !_� _ _ .;a-,-,Ill mim �9 >�m r•t `ay7Y /`JS ----— --- I F X XQ--Xf - 3 0X $PEC.LAT.'V' te X 0X X _ �T� 15"RCP-IV ,,,,O , er. "�Lc4�64 � SPICSM�INTI* ,'date _ _--6_C�--- eMio - XE} ES X t V. -• X — St i� ♦�f9�i��..♦ '•s 9� _—— ____ DITCH \ p lII // // ! t. NF//// PUE SEE DETAIL 2 DRV- PC Sta.10+23OD � \� /// /7 44 /�4* _/ %/�\ / / // - 1 RIDGE SPEC.LAT.BASE SPEC.LAT.N' FL /1��y,u t DITCH DITCH I UE AG \ 1r7 / SEE DETAIL 3 SEE DETAIL 2 I 03* V \ l'i.8. A) \ .. . .. .. - - .. .. .. .- .. / UV .. , BARNHICOMOANNRACTING \�i P, \ P E UE PUE •UE PUE PUE 1 • DB 3414 PG 487 ^ .. ,,,,, ' Fir. i2 •• 44 4,,, /m / ��I v �" woods \ G • SPEC.LAT.'V' SPEC.LAT.'V' \ 14 j' __ i o DITCH DITCH \v/ _ I SEE DETAIL 4 SEE DETAIL 4 1 ! CLASS B'RIP-RAP CLASS B'RIP-RAP m EST.10 TONS EST.5 TONS CLASS'B'RIP-RAP GEOTEXTILE GEOTEXTILE EST.2 TONS EST.25 SY EST.15 SY GEOTEXTILE EST.7 SY __, -DRV- PRO Ste.10+68.31 SPEC.LAT.BASE DITCH / SEE DETAIL 3 .FD -DRV- POC Ste.lI+OO.OD BEGIN APPROACH SLAB END APPROACH ''LAB . END CONSTRUCTION -L- STA 13+2393 RIP-RAP AT -L- STA 14+33.0. EMBANKMENT -L- -DRY yt�- SEE DETAIL 1 y PI Ste 14+36,14 PI Ste 10+4680 PI Ste 11+15.09 �7 EST.20 TONS BEGIN BRIDGE CLASS'I'RIP-RAP END BRIDGE A= 0'49'47.P(RT I A= 43'16'17.6"(LT I A= 75'52'55.5"(RT I 1� L STA 13+3453 EST. TL STA 14+223T D = 0 22'55J" D = 95'29'34.7" D = 95'29'34.7 fo -DRV- PT Ste.11+4778 • RIP-RAP AT JEFFREY TEFL I E R LENS CONS CO INC \ LORI BROWN HARRIS DB 2019 PG 565 L = 2/723' L = 45.3/' L = 79.46' f„ EMBANKMENT T = 108.62' T = 23.80' T = 46.78' 1 SEE II'RIP-RAP DB 3054 PG 711 R = 15,000.00' R = 60.00' R = 60.00' (1 GEOTEXTILEEST.35 5 SE = NC SE = NC SE = NC DRV POT Sta.11+69.75 EST.75 SY J