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HomeMy WebLinkAbout20170151 Ver 1_B-4960_PERMIT PACKAGE_2017 01 23_20170201H1�;h�v��V North Carolina Department of Transportation \ St�r�i�water � ,,,, .,.t.� Highway StormwaYer Program �'i STORMWATER MANAGEMENT PLAN (Version 2.07; Released October 2016) FOR NCDOT PROJECTS WBS Element: 40153.1.1 TIP No.: B-4960 County(ies): Guilford Page 1 of 2 General Project Information WBS Element: 40153.1.1 TIP Number: B-4960 Project T pe: New Location Date: 2016 11 08 NCDOT Contact: Chris Smitherman, Div. 7 Design Construction Engineer Contractor / Designer: AECOM Charles Smith, PE Address: 1584 Yanceyville Street Address: 701 Corporate Center Drive Greensboro, NC 27415-4996 Suite 475 Raleigh, NC 27612 Phone: 336-487-0075 Phone: 919-854-6240 Email: csmitherman a(�ncdot.qov Email: charles.smith2(a�aecom.com CitylTown: Whitsett, NC County(ies): Guilford River Basin(s): Cape Fear CAMA County? No Wetlands within Project Limits? Yes Project Description Pro'ect Len th lin. miles or feet : 4105 FT Surroundin Land Use: Roadway (I-40), Woods, Utility Easement, Existing State Road (Judge Adams) Proposed Project Existing Site Project Built-Upon Area (ac.) 1.3 ac. 0.1 ac. Typical Cross Section Description: Konica Drive extension: Two 9FT lanes with 9FT shoulders. Stone surtace. Roadside A dirt road / utility easement is approximately where Konica Drive extension will be ditches. placed. Bridge superstructure and interior bents will be removed. A"T" turnaround will be placed The existing bridge is timber with mass concrete interior and end bents. A gravel lane on the south side of the bridge. accesses the bridge from the north and south. Annual Avg Daily Traffic (veh/hrlday): Desi n/Future: 2500 Year: 2035 Existin : 800 Year: 2013 General Project Narrative: The project consists of removing Bridge 214 superstructure and interior bents over Little Alamance Creek / Lake Mackintosh. The bridge will not be replaced. The existing (Description of Minimization of Water mass concrete end bents will remain. Konica Drive (SR 3224) will be extended to access properties otherwise cut off by the bridge removal. Konica Drive extension consists of Quality Impacts) grading, a culver extension, cross pipes, ditching, and a storm sewer segment. Runoff from the roadway runs across grass shoulders, and is collected in ditches, most of which are grass lined. Runoff that finds its way to storm sewer inlets is first conveyed through grass lined ditches. This promotes infiltration and filtration. The steepness of the project terrain is the main factor that precludes using filter strips, and precludes ditches from meeting water quality swale criteria. The storm sewer near buffers and wetlands is discharged to a preformed scour hole. Storm sewer was minimized on the project in favor of ditches. Cross pipes outlet to riprap pads to prevent erosion. Several measures such as a drop junction box, oversized culvert extension pipe, and riprap dissipator basin are used to reduce energy of the large culvert extension near -L- 28+OORT. The fill slope is 2:1 over the culvert extension to minimize stream impacts. Waterbody Information Surface Water Body (1): Little Alamance Creek / Lake Mackintosh NCDWR Stream Index No.: 16-19-3-(4.5) NCDWR Surface Water Classification for Water Body Primary Classification: Water Supply IV (WS-IV) CA Supplemental Classification: Nutrient Sensitive Waters (NSW) Other Stream Classification: None Impairments: mercury (Hg) Aquatic T&E Species? No Comments: NRTR Stream ID: Little Alamance Creek Buffer Rules in Effect: Jordan Lake Project Includes Bridge Spanning Water Body? No Deck Drains Discharge Over Buffer? No Dissipator Pads Provided in Buffer? N/A Deck Drains Discharge Over Water Body? N/A (If yes, provide justification in the General Project Narrative) (If yes, describe in the General Project Narrative; if no, justify in the (If yes, provide justification in the General Project Narrative) General Project Narrative) HigYlwdy North Carolina Department of Transportation Stormwater /�` „�,,,, Highway Stormwater Program �./� '�`� STORMWATER MANAGEMENT PLAN (Version 2.07; Released October 2016) FOR NCDOT PROJECTS WBS Element: TIP No.: B-4960 County(ies): Guilford Page 2 of 2 Preformed Scour Holes and Energy Dissipators Station & Coordinates Drainage Pipe/Structure BMP Sheet (Road and Non Road Surface Energy Dissipator Area Conveyance Dimensions Q10 V10 Associated w/ No. Pro'ects Water Bod Type Riprap T pe ac Structure (in) (cfs) (fps) Buffer Rules? 5 -L-26+65RT (1)Little PSH Class I 2.2 Pipe 24 8.0 1.2 Yes Alamance 5 -L-27+70RT (1)Little Riprap Energy Class I 141.0 Culvert 72 130.0 2.9 No Alamance Dissipator Basin Additional Comments PSH is used to promote diffuse flow prior to runoff entering wetlands and Jordan buffers. PSH added as requested by NCDOT staff at combined field inspection meeting. 24" pipe is over the size permitted for use with a PSH. However, 18" pipe would sufficient to carry the flow and validate the use of a PSH. 24" was used due to the upstream pipe being 24". ' Refer to the NCDOT Best Management Practices Toolbox (2014), NCDOT Standards, the Federal Highway Administration (FHWA) Hydraulic Engineering Circular No. 14 (HEC-14), Third Edition, Hydraulic Design of Energy Dissipators for Culverts and Channels (July 2006), as applicable, for design guidance and criteria. See Sheet lA For Index of Sheets SPP Simet 9R F�r Conventl�nnl Svmh�l�s � � ����� �� ����� �������� 1LJl� �Y ��1L��� �� 1LJI1�L�� V'V' ���� G UILFORD CO U1�1 T�' LOCATI011I: SR 3224 (K0IVICA DRIVE) A111D SR 3058 (JUDGE ADAMS RD) AT LITTLE ALAMA11lCE CREEK �� PERMIT DRAWING SHEET 1 OF 10 TYPE OF WORK: GRADI11lG AND GRAVEL EXTENSI0111 OF SR 3224, REMOVAL OF BRIDGE #214 011t SR 3058 WETLAI�D A1�D S URFACE WATER IMPA C TS PERMI T sTAz� i sTwTE PRo�E�T REFEAex�e No No i SH�ETs BRIDGE REMOVAL ii ii —L— STA. 40 + 10.91 ir B Iw°N _ �NO Io M � � ,o` _ , CAlll !`/'IAICTDI 1!^TI!'lAl � h O M K N + —Yl— Sta. 10+47.70 DOCUMENT NOT CONSIDERED FINAL CI,EARING ON THIS PROJECT WII,L BE PERFORMED UNLE55 ALL SIGNATURES COMPLETED TO THE LIMITS ESTABLISHED BY NCDOT METHOD 77. GRAPHIC SCALES DESIGN DATA PROJECT LENGTH PrePared in the office of: FIYDRAULICS ENGINEER NC FIRM LICENSE No. F-0342 � r0lCorpora�e Center Drive.Suite 975 ADT 2013 = 800 � M Raie�gn, Nc z�6o� 40 20 0 40 $� ADT 2035 = 2,500 �9i9� a�s4-62o0 -�9i9� as4-6z59cax� �� o� �ou�p�y �� K= 13% 2012 STANDARD SPEClFICAT/ONS LE1V HILL, P.E. �p � o PLANS D= 80% LENGTH ROADWAY TIP PROJECT B-4960 = 0.554 MILES rao�Ecz sxcrxEEx _ P�. � a 4� 20 Q 40 $0 - SfGNATURE: w�i T— 4°/a * LENGTH BRIDGE TIP PROJECT B-4960 = 0.000 MILES RIGHT OF WAY DATE: ROADWAY DESIGN ENGINEER D � V= 40 MPH NOVEMBER 2016 �URA FISHER,P.E. �,� a PROFILE HORIZONTAL * o o TOTAL LENGTH OF TIP PROJECT B-4960 = 0.554 MILES rnorEcz Dss.cN euciuEsx ��� ��� � ) (TTST 1 /o + DUAL 3 /a) p oQ � l0 5 0 l0 2p FUNC. CLASS = LOCAL LETTING DATE: ��—'���� REGIONAL TIER �Y 2017 CHRIS SMITHERMAA;RE. PROfECT ENGINEER PROFILE (VERTICAL) xcoor coxracr r.s. S7GNAT[IRE: � 0 � � � — DETAIL 1 LATERAL 'V' DITCH � Not to scale� b Nar�rnl �— � Fill Groond '�:7 p��` 1 iFt 51ope a M n. D=7 Ff. Moa d=1 Ft. 6=5 Ft. � — DETAIL 5 LATERAL 'V' DITCH ( Not ro Scale) Nat�ral � �— Fill G.00�d 3� � g�? �"��. sioPa D Min. D=1 Ft. 6=5 Ft. FROM -L- STA.25+SOLT TO STA.27+OOLT DETAIL b TOE PROTECTION (Norta s�aie� `te� F�o Nat�ral � .L�� °�S�OQe Ground b F� i '1 �_a d=1 Ft 6=5 Ft `-�Geotex�ile Type of Liner= Class B Rip-Rap FROM -L- STA.I2+SOLT TO STA.15+20LT FROM -L- STA.27+72RT TO STA.28+61RT FROM -L- $TA15+20LT TO STAI7+OOLT � FROM -L- STA.23+OORT TO STA.25+OORT FROM -L- $TA22+50LT TO STA.24+85LT FROM -L- STA.3I+SSLT TO STA.33+SOLT DETAIL 7 STANDARD BASE DITCH � Not+o s�aie� Nal�ral Nolvrol Gro�nd �':� n��� Ground d � Geotexrde— g Min.D=2 Ft. � Mas. d=2 Pt. "When B is < 6.0' B=2 Fi. � nl Type of Uner= Class I Rip-Rap � � oo' � o' �� ,00" � -- � j � ,, � , -', .. ��� /� � � � � �RAP���� s���� � . ��� � � f� - . . 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CI DB 2�85 BU PGIN75 ON ez � � � � �� � � „ N� � � _ �STIN�' � � �i L � � � -. �H -- Z L a. vti � y � � ...� �� - � .:_:. i\ ' . . . _ ', � � .. , � � �a rarR� : � ,�, ,, = --�� i � � � �-•� � � �� , � � � -, : _ - � � _ _ �_ � �� � e ` - � � , / - Yl- JUDGE ADA/v1S ROR , - � � . _ __ `1e s x�s,�N e2 z, N,_ �.�8' 3.6" V✓ -� � yf , - - � eiw —� , - - ... �-,._� . / ' � ---- - . �. ��, �" � - -- �iP _ � ��— � —_ R"r� -r � _ l z� - .-. -.- � � � - � - ' - LAKE MALIM WF 54'S � � � ^-;LIt - K IE If- �' . � . . � � � ) � � � � �� � � I � '" � \ � � � � � \ �,�r� ROCK CREEK INVESTMENTS LLC � �'° firf � � , .,�n ,—.-y :�.—� DB 6412 PG 2747 � �� .�% .p. �. �- �� � � � �, Ul lfl �� W � - - __ - _- � 6l GUILFORD COUNTY \ � DB 385i PG 1213 PB 100 PG 77-79 \ EIF CITY OF BURLINGTON DB 2853 PG 175 -Yl- JUD�E ADAMS ROAD Pl Sta 11t58.74 Pl Sta 14t05.97 Pl Sta 14+76.62 Pl Sta 17+09.00 Pl Sta 19+90.0/ 0= ll° 50' 47.0" �LTJ �_ l5° 37' 23.0" �LTJ �= 8° 5/' 27.8" (RTJ �_/7' 32' 24.5" �RT) �_/` /5' 43.6" (RTl D= 3° 44' 4/.4" D- l6° 22' 12.8" D= l9° 05' S4.9" D= l5° 54' S5.8" D= 0° 59' 16.3" L= 3/6.34' L 95.44' L= 46.38' L= 110.2/' L= 127.76' T= 158.74' T 48.02' T= 23.24' T= 55.54' T= 63.88' R= 1.530.00' = 350.00' R= 300.00' / R= 360.00' R= 5.800.00' PROJECT REFERENCE NO. SHEET NO. B-4960 07 RNJ SHEET NO. P E RM I T D RAW I N G `� ROADWAY DESIGN HYDRAULICS ` ENGINEER ENGINEER SHEET 8 OF 10 �oo- o- �oo- GRAPHIC SCALE o� .�. ..� A_�'OM ,a �o�oo��a a �� tisa��o���a �u��.E < t9i9�059 6200e� t919�854-6259[Fnx� 5 DOCUMENT NOT CONSIDERED FINAL UNLESS ALL SIGNATURES COMPLETED E11tD CONSTR UCTI011t -YI- Sta. l6 + 87.92 / � N � / / � G�1ILFORD COUNTY �DB 385i PG i213 9B 100 PG 77-79 � ti� � ati / / REMOVE BRIDGE SUPERSTRUCTURE �� CIT,IY OF BIJRLINGTON AND INTERIOR BENTS. END BENTS �g Zg53 PG 175 TO REMAIN. NO BRIDGE APPROA'CH °' EXCAVATION REQUIRED. �� I .. � ; � � ROCK CREEK INVESTMENTS LLC � � � � DB 6880 PG 148 . �� � osN � r � � �� � I� ', . � t," ' � , �ti,y� ; •,�`-�y, � , .� , �.- I P , � . �.:� � � � � . Ff- ` , �! E �� - - . _ � � �. , � : � - , _ _ ._ �� . {, �' / � � � � -_ . -- --� . � �� E�zaws RR,k _- . � ; � �=_ �E—� � . �� ., . � ! �L � `" �� �— I� i i � S Z�-' —_ — � — ,- _ �--�_ - _ °' _ _- 1 I _ _ ` � - - ' -'3�- 8� `_-` - .-_ � ' 3� - &.8"� _N f 07, 35, � _�--_ __`�_� �� S - � - - -- — - � � - _ —_ _�� FI I� � , - - - - - _ � _, .� _ -�-_ �wsTiN� Ri "- �� 3 . .. .� ., k __ � ,':1 � � P .� — — — _ _ ., � � � �— _ _ - - = C " IF V /.� ...__ � u � �� iii iir_� � ��_ H � �I ROCK CREEK INVESTMENTS LLC DB 6880 PG i48 : TY OF BURLINGTON ` CV � DB 2853 PG I75 GUILFORD COUNTY �. �' DB 3851 PG 1213 ,� . �- - PB 100 PG 77-79 � N SITE 3 � � � O O � � � � V h + � � � � � � � � � � � O � 1� � U � � � I � � � 1 BLOGK NO MORE THAN HALF THE WATERWAY WIDTH AT ANY GIVEN TIME WITH COFFERDAMS OR OTHER MEANS OF INTERIOR BENT REMOVAL. �DENOTES TEMPORARY IMPACT$ IN $URFACE WATER I WETLAND PERMIT IMPACT SUMMARY WETLAND IMPACTS SURFACE WATER IMPACTS an Existing Existing Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural Site Station Structure Fillln Fillln in Clearing in SW SW Impacts Impacts Stream No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design (ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft) 1 -L- 27+gORT Culvert Extension & Basin 0.02 < 0.01 135 25 2 -L- 27+OORT Roadway Fill < 0.01 0.04 3 -Y1-15+00 to 16+30 Bridge Removal 0.10 TOTALS*: < 0.01 0.04 0.02 0.11 135 25 0 *Rounded totals are sum of actual impacts NOTES: Bridge removal temporary impacts are for use of cofferdams to remove interior mass concrete bents. zo�a See Sheet lA For Index of Sheets SPP Simet 9R F�r Conventl�nnl Svmh�l�s � � ����� �� ����� �������� 1LJl� �Y ��1L��� �� 1LJI1�L�� V'V' ���� G UILFORD CO U1�1 T�' LOCATI011I: SR 3224 (K0IVICA DRIVE) A111D SR 3058 (JUDGE ADAMS RD) AT LITTLE ALAMA11lCE CREEK �� PERMIT DRAWING SHEET 1 OF 5 TYPE OF WORK: GRADI11lG AND GRAVEL EXTENSI0111 OF SR 3224, REMOVAL OF BRIDGE #214 011t SR 3058 B UFFER IMPA C TS PERMI T sTAz� i sTwTE PRo�E�T REFEAex�e No No i SH�ETs BRIDGE REMOVAL ii ii —L— STA. 40 + 10.91 ir B Iw°N _ �NO Io M � � ,o` _ , CAlll !`/'IAICTDI 1!^TI!'lAl � h O M K N + —Yl— Sta. 10+47.70 DOCUMENT NOT CONSIDERED FINAL CI,EARING ON THIS PROJECT WII,L BE PERFORMED UNLE55 ALL SIGNATURES COMPLETED TO THE LIMITS ESTABLISHED BY NCDOT METHOD 77. GRAPHIC SCALES DESIGN DATA PROJECT LENGTH PrePared in the office of: FIYDRAULICS ENGINEER NC FIRM LICENSE No. F-0342 � r0lCorpora�e Center Drive.Suite 975 ADT 2013 = 800 � M Raie�gn, Nc z�6o� 40 20 0 40 $� ADT 2035 = 2,500 �9i9� a�s4-62o0 -�9i9� as4-6z59cax� �� o� �ou�p�y �� K= 13% 2012 STANDARD SPEClFICAT/ONS LE1V HILL, P.E. �p � o PLANS D= 80% LENGTH ROADWAY TIP PROJECT B-4960 = 0.554 MILES rao�Ecz sxcrxEEx _ P�. � a 4� 20 Q 40 $0 - SfGNATURE: w�i T— 4°/a * LENGTH BRIDGE TIP PROJECT B-4960 = 0.000 MILES RIGHT OF WAY DATE: ROADWAY DESIGN ENGINEER D � V= 40 MPH NOVEMBER 2016 �URA FISHER,P.E. �,� a PROFILE HORIZONTAL * o o TOTAL LENGTH OF TIP PROJECT B-4960 = 0.554 MILES rnorEcz Dss.cN euciuEsx ��� ��� � ) (TTST 1 /o + DUAL 3 /a) p oQ � l0 5 0 l0 2p FUNC. CLASS = LOCAL LETTING DATE: ��—'���� REGIONAL TIER �Y 2017 CHRIS SMITHERMAA;RE. PROfECT ENGINEER PROFILE (VERTICAL) xcoor coxracr r.s. S7GNAT[IRE: O � DETAIL 1 LATERAL 'V' DITCH ( Not to Smle) Nor��ai b F�u Gro�nd �7.7 p •�'1 7"iF+. Slope d Min. D=7 Ft. Mox.d=1 Ft. b=5 Ff. Type of Liner= PSRM FROM -L- STA.I2+SOLT TO STA.15+20LT FROM -L- STA.15+20LT TO STA.I7+OOLT FROM -L- STA.23+OORT TO STA.25+OORT FROM -L- STA.22+SOLT TO STA.24+85LT FROM -L- STA. 31+85LT TO STA.33+SOLT DETAIL 7 $TANDARD BASE DITCH ( Not to Scale) NaNral Nat�ral Gro�nd �?:� 3�� Gro�nd D d. �eo�e.+i�e-' g Min.D=2 ff. � Max. d = 2 Ft. "When B is < 6.0' B=2 Ft. pe of Liner- Class I Rip-Rap FROM -L- STA.29+45RT TO STA.30+SORT EST. 105 TONS CLASS I RIPRAP EST. DDE 140 CY EST.777 SY GEOTEXTILE 30' D� - DB � - _ DETAIL 5 LATERAL 'V' D�TCH ( Nof lo Scale� Nor��oi � � - �- F�u Groond 3�� � .y�� 7"Rt Slope D Min. D=1 Ft. 6=5 Ft. FROM -L- STA.25+SOLT TO STA.27+OOLT DETAIL 9 LATERAL BASE DITCH � Not 5o Scale� Nowral � Fill Ground `3') p n��� 7^��, Slope a g Min. D=1 F}. Max. d=1 Pt. B=2 Ft. 6=5 Ft. Type of Liner= PSRM FROM -L- STA.30+SORT TO STA.33+OORl DETAIL 6 TOE PROTECTION � No� �o s�oie) ��e� �o Not�ral .y��°� S�°pe Ground b , �•-•� �d d=1 Ft. 6=5 Ft. -Geotextile Type of Liner= Closs B Rip-Rap �ROM -L- STA.27+72RT TO STA.28+b1R7 pl..;:;:.:1 �. . � _ � RETAIN \ \�1 N loo' o' ioo' � GRAPHIC SCALE I PROIECT REFERENCE NO. $HEET NO. 8-4960 05 ILW SHEET NO. ROADWAY DESIGN HYDRAULICS ENGINEER ENGINEER �o,.....�A_COM,� o�oo�a����E�=E�o:,F_os<=�re4 IA9� 954-62009� 199 �954 6259iFn%i �5 DOCUMENT NOT CONSIDERED FINAL UNLESS ALL 51GNATURES COMPLETED PERMIT DRAWING SHEET 2 OF 5 O � � REPAIR UNDER SEPARATE O MAINTENANCE EFFORT � CUT DITCH PER TYP. SECT. I RETAIN gETWEEN L 27+OOLT AND 28+SOLT - I� . I-I `.� .iil Fi+ ----- - - -�--i . _ � I-4QB5 ------- �-- --- � -- F T\ I � o �:I_ / �- i _ RETAW � �POWER EASEMENT LATERAL V DITCH �� ��� LATERAL V DI?CH -� �� v 1 637 PG 1469 SEE DETAIL 1 � �� � � I�'4W SEE DETAIL 5 EXTEND��WERT- � I� ,-�� ��, REMOVE HW �� ._ , _ � -;:- - - - - - � - - -�- �- - ; - - - - - < -- _ ___� EXISTING R/W C GRADE TO DRP.IN /�� - � � - � C C I'. _,... � C ROCK CREEK INVESTMENTS LLC - - � � � � - DB 6880 PG 148 INv.676.0 ENo secrioN z�i-s � - � � � � - � � . - . 370.03 � � TOP: 613.45 � A/ R 9' l7' 37 F" F � -_ � 2 I � _ n V � 10' PIEDMONT- NATURRL GA5 ECzSEMENT - - - - - - - c c PDE PDE PDE PDE - - PDE LATERAL V DITCH 15' BEL SOUTH TELECOMMUNICATIONS EASEMENT SEE DETAIL 7 DETAIL 8 RIP-RAPPED ENERGY DISSIPATOR BASIN CLASS I RIPRAP DIM, RIP RAP BASIN # �ft) 0510 A 2.5' B 1.7' C 2.5' D 1.7' E 8.5' F 23.5' G 78.0' ALL DIMENSIONS APPRO%IMATE BASIN # LOCATION (AT OUTLET) 0510 -L- 27+70RT� � "�`i �� c / � PDE--_�,PpE , � J� F u •���P�F J i '�j .. " �E' 'ii "�,_` 1_1� , EST.29 TON� RIP RAP NOT SHOWN / % �N I \ 1%�+ za 4 CULVERT� 2:1r ` APRON _ � F - � -..._ .. \ ry 1:7+ \ �I RIP RAP NOT SHOWN PLAN CUIVfRT � SECTION FROM -L- $TA.27+63RT TO STA.27+77RT EST. 56 TONS CLA55 I RIPRAP EST.DDE 70 CY EST.60 SY GEOTEXTILE 4NRAl 20UND 7N8 I � CLASS I RIP RAP �- �� EST. 50 SY ����� GEOTEXTILE �V � �- EST. 4 TONS -' V ���'� CLASS I RIP RAP ��-V ��._. EST.10 SY - GEOTEXTILE Plpe o ONlef ��e Scou� H �Rip Rap in 1 „o�.now� ro �� INV. 603.0 j,;�'. i�i - �] r ,��u - � - TB 10 w/MH L \E-ROSION INV. 83.5 � y�OPE PI � PSH\ Fy. " DE �'U_.. � B\ 3y � � , �., r4 __ " � ���Y � ��� � � � --'"�E EROSION CONTROL . SKIMMER BASIN. NEGL�GIBLE DISCHARGE �� 1 SITE 1 ROCK CREEK INOVESTMENTS LLC DB 6880 PG 148 DETAIL 12. PREFORMED SCOUR HOLE `NOT TO SCALE PLAN VIEW INSTALL LEVEL AND FLUSH WIIH NATIIRAL GROIIN� A J ��>��<� B= 4.SFT D- 2Ff W- 4Ff SECTION A-A �� PIPE Id = ld"I S�� D E YSPM wFww � . i I caouHo IINER� CUSS B RIPaaP 'F--B�I EST. 11 TONS CLASS I RIPRAP wirn eeorexrue EST. DDE 14 CY MiH.t�ruck EST.18 SY GEOTEXTILE EST.33 SY PSRM aoe � � \ �C aI� R/W MON � � C TB 1B v){Slob LdEX�sj\NG� OI �� � 4o��e�f,ssn,P� , Ui s e s ioeia�i ROCK CREEK INVESTMENTS LLC F snee z� DB 6880 PG 148 O EROSION CONTROL O NEGLIGIBLE DISCHARGE O GRADE TO DRAIN GRADE TO DRAIN R � i � � � � � W �'i i - / � u , c INV. 579.0 � � � ,a�]-uuu � i- Q � �� � - �- INV., , _ (^ = PBE / �' � --E 2' STANDARD BASE / �I DITCH SEE DETAIL 7 � I 2' LATERAL BASE DITCH SEE DETAIL 9 � ZINK IMAGING INC. DB 675i PG i105 PB 95 PG 61 MITIGABLE IMPACTS ZONE 1 � MITIGABLE IMPACT$ ZONE 2 BUFFER IMPACTS SUMMARY IMPACT BUFFER TYPE ALLOWABLE MITIGABLE REPLACEMENT STRUCTURE SIZE / STATION ROAD PARALLEL ZONE 1 ZONE 2 TOTAL ZONE 1 ZONE 2 TOTAL ZONE 1 ZONE 2 SITE NO. TYPE (FROM/TO) CROSSING BRIDGE IMPACT (ftZ) (ft2) (ft2) (ftZ) (ft2) (ft2) (ft2) (ftZ) 1 Roadway Fill & Culvert -L-27+0 / 28+50 X 9129.0 5852.0 14981.0 TOTAL: 0.0 0.0 0.0 9129.0 5852.0 14981.0 Rev. May 2006