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HomeMy WebLinkAbout20190211 Ver 1_U-5875_SMP_20181203_20190215Hi�hWay North Carolina Department of Transportation StOCCY1W�tei' Highway Stormwater Program ,'�_� STORMWATER MANAGEMENT PLAN -- (Version 2.08; Released April 2018) FOR NCDOT PROJECTS WBS Element: 44677.1.1 TIP No.: U-5875 County(ies): PITT Page 1 of 3 General Project Information WBS Element: 44677.1.1 TIP Number: U-5875 Pro'ect T pe: Roadwa Widenin Date: 11/27/2018 NCDOT Contact: Bett Ann Caldwell, PE Contractor I Desi ner: And Howell, PE Address: 1037 W.H. Smith Blvd Address: SEPI Engineering & Construction PO Box 1587 1025 Wade Avenue Greenville, NC 27835 Ralei h, NC 27605 Phone: 252-439-2808 Phone: 919-747-5389 Email: bacaldwell ncdot. ov Email: ahowell se ien ineerin .com Cit ITown: Greenville Count ies : Pitt River Basin s: Tar-Pamlico CAMA Count ? No Wetlands within Project Limits? Yes Pro'ect Descri tion Pro'ect Len th lin. miles or feet : 2.411 miles Surroundin Land Use: Agricultural fields w/ residential development; limited forested areas adjacent to streams Pro osed Pro'ect Existin Site Pro'ect Built-Upon Area ac. 33.5 ac. 19.9 ac. Typical Cross Section Description: The proposed cross section is 4- 12 foot lanes with 5 foot bike lane, curb and gutter 3- 12 foot lanes with varying paved shoulder. The existing road has a shoulder section section, and grassed shoulder seperated by a raised grass median. The shoulder point to with roadway ditches. shoulder point width is 105 feet Annual Avg Daily Traffic (veh/hr/day): Desi n/Future: 35100 Year: 2040 Existin : 23517 Year: 2020 General Project Narrative: The purpose U-5875 is to widen and upgrade SR 1203 (Allen Road) from SR 1467 (Stantonsburg Road) to US 13 (Dickinson Avenue) to a four-lane divided facility with a raised (Description of Minimization of Water median and curb and gutter in Greenville. The project replaces 3 existing crossings to Reinforced Concrete Box Culverts. There is no direct discharge to surface waters or buffer Quality Impacts) zones. The ultimate receiving water source is Green Mill Run. Existing land use in the vicinity consists primarily of agricultural fields with scattered rural residences. Opportunities for swale treatment exist primarily on the east side of Allen Road as the west side of Allen Road has more existing development. W here practical, full treatment via swales has been provided. Where not practical, constraints to treatment are described in detail in the "Additional Comments" section of the Swales section of the Stromwater Management Plan. Waterbod Information Surface Water Bod 1: Green Mill Run NCDWR Stream Index No.: 28-96 NCDWR Surface Water Classification for Water Body Prima Classification: Class C Su lemental Classification: Nutrient Sensitive Waters NSW Other Stream Classification: Im airments: 303d listed for Benthos Severe Nar, AL, FW Aquatic T&E Species? Comments: NRTR Stream ID: Green Mills Run Buffer Rules in Effect: Tar-Pamlico Pro'ect Includes Brid e Spannin Water Bod ? No Deck Drains Dischar e Over Buffer? N/A Dissipator Pads Provided in Buffer? N/A Deck Drains Dischar e Over Water Bod ? 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) E�Ii�Yl�v �y North Carolina Department of Transportation StorjllwHtel' Highway Stormwater Program �� STORMWATER MANAGEMENT PLAN — (Version 2.08; Released April 2018) FOR NCDOT PROJECTS WBS Element: 44677.1.1 TIP No.: U-5875 Count ies : Pitt Pa e 2 of 3 Additional Waterbod Information Surface Water Bod 2: North Fork Green Mill Run NCDWR Stream Index No.: 28-96 NCDWR Surface Water Classification for Water Body Primar Classification: Class C Supplemental Classification: Nutrient Sensitive Waters NSW Other Stream Classification: Impairments: 303d listed for Benthos Severe Nar, AL, FW A uatic T&E S ecies? Comments: NRTR Stream ID: Stream SE Buffer Rules in Effect: Tar-Pamlico Pro'ect Includes Brid e Spannin Water Bod ? No Deck Drains Dischar e Over Buffer? N/A Dissi ator Pads Provided in Buffer? N/A Deck Drains Dischar e Over Water Bod ? 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) Surface Water Bod 3: Unnamed Tributa to Green Mill Run NCDWR Stream Index No.: 28-96 NCDWR Surface Water Classification for Water Body Prima Classification: Class C Su lemental Classification: Nutrient Sensitive Waters NSW Other Stream Classification: Im airments: 303d listed for Benthos Severe Nar, AL, FW Aquatic T8E Species? Comments: NRTR Stream ID: Stream SA Buffer Rules in Effect: Tar-Pamlico Pro'ect Includes Brid e Spannin Water Bod ? No Deck Drains Dischar e Over Buffer? N/A Dissipator Pads Provided in Buffer? N/A Deck Drains Dischar e Over Water Bod ? 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) Surface Water Bod 4: NCDWR Stream Index No.: NCDWR Surface Water Classification for Water Body Primar Classification: Supplemental Classification: Other Stream Classification: Impairments: 303d listed for Benthos Severe Nar, AL, FW A uatic T&E S ecies? Comments: NRTR Stream ID: Buffer Rules in Effect: Pro'ect Includes Brid e S annin Water Bod ? Deck Drains Dischar e Over Buffer? Dissi ator Pads Provided in Buffer? Deck Drains Dischar e Over Water Bod ? (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) Surface Water Body 5: NCDWR Stream Index No.: NCDWR Surface Water Classification for Water Body Prima Classification: Su lemental Classification: Other Stream Classification: Im airments: Aquatic T8E Species? Comments: NRTR Stream ID: Buffer Rules in Effect: Pro'ect Includes Brid e Spannin Water Bod ? Deck Drains Dischar e Over Buffer? Dissipator Pads Provided in Buffer? Deck Drains Dischar e Over Water Bod ? (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) Hl hwa North Carolina Department of Transportation �Stormwater �j , „�„�., Highway Stormwater Program STORMWATER MANAGEMENT PLAN - (Version 2.08; Released April 2078) FOR NCDOT PROJECTS WBS Element: 44677.1.1 TIP No.: U-5875 County(ies): PITT Page 3 of 3 Swales Station & Coordinates Surface Base Front Back Drainage Recommended Actual Longitudinal Rock BMP Sheet (Road and Non Road Water Width Slope Slope Area Treatm't Length Length Slope Q2 V2 Q70 V10 Checks Associated w/ No. Projects) Body (ft) (H:1) (H:1) (ac) (ft) (ft) (%) (cfs) (fps) (cfs) (fps) Used Buffer Rules? 4 FROM -Y- STA 21+50 LT (3)Unnamed 3.0 3.0 3.0 1.4 141 300 1.70 % 3.2 1.9 4.1 2.1 No Yes TO -Y- STA 25+00 LT Tributary to 4 FROM -Y- STA 21+g0 RT (3)Unnamed 0.0 3.0 3.0 0.4 39 178 1.30 % 1.1 1.3 1.4 1.4 No Yes TO -Y- STA 24+00 RT Tributary to 4 FROM -Y- STA 21+26 LT (3)Unnamed z 0 3.0 3.0 2.6 255 255 0.50 % 11.4 1.8 14.8 1.9 No Yes TO -L- STA 21+65 RT Tributary to 5 FROM -L- STA 24+23 RT (3)Unnamed z 0 3.0 3.0 1.1 107 122 0.50 % 4.0 1.4 5.3 1.5 No Yes TO -L- STA 26+05 RT Tributary to 5 FROM -L- STA 26+25 RT (3)Unnamed 3.0 3.0 3.0 16.1 1606 695 0.52 % 23.6 1.8 30.9 1.9 No Yes TO -L- STA 33+76 RT Tributary to � FROM -L- STA 53+7g RT (1)Green Mill 3.0 3.0 3.0 9.2 920 922 0.91 % 30.2 2.0 39.6 4.0 Yes Yes TO -L- STA 63+70 RT Run $ FROM -L- STA 63+g0 RT (1)Green Mill 3.0 3.0 3.0 10.7 1067 693 1.38 % 29.1 2.0 38.2 4.0 Yes Yes TO -L- STA 71+61 RT Run 12 FROM -L- STA 121+50 RT (2)North Fork 4.0 3.0 3.0 4.7 474 492 1.20 % 14.2 2.0 18.5 4.0 Yes Yes TO -L- STA 127+10 RT Green Mill 13 FROM -L- STA 128+20 LT (2)North Fork 3.0 3.0 3.0 3.6 356 552 0.30 % 10.9 1.5 14.1 1.6 No Yes TO -L- STA 134+00 LT Green Mill 13 FROM -L- STA 129+00 RT (2)North Fork 0.0 3.0 3.0 2.0 197 200 0.30 % 7.0 1.3 9.1 1.5 No Yes TO -L- STA 131+00 RT Green Mill Additional Comments Recommended length was calculated based on the total drainage area. Where practical, an effort was made to treat the total area on the project through grassed swales. The swale from -L- Sta 26+25 to Sta 33+76 RT is 695 feet long. The recommended swale length is 1606 feet which accounts for 11.07 acres of offsite agricultural drainage coming to the project via an existing swale. The 695 feet swale is sufficient to treat the drainage area minus the 11.07 acres of agricultural land. See Attatchment 1, aerial imagery in the area. The swale from -L- Sta 63+g0 to Sta 71+61 RT is 693 feet long which is not as long as the recommended length. In this area, it is not possible to created a longer swale because of limitations from Parcel 44 at Sta 72+00 RT. Creating a longer swale would require taking a business. N O N > W � �� r PROJECT REFERENCE NO. SHEET NO. ► ;� 1025 Wade Avenue U-5875 5 �' � ' Raleigh, NC 27605 � SHEET NO. , . � Te1:919-789-9977 --- ��3 �'.;+�► �� •' ��� �/ E N G I N E E R I N G 8� Fax:919-789-9591 ROADWAY DESIGN HYDRAULICS , - � �� , � r� � ��� `�O C 0 N S T R U C T I O N License: G2197 ENGINEER ENGINEER � , '.' � �' � 8 , , ,� � � , . � A ?0 �I , �_,�..� INC�l�i]�LE E PLt�N� , � ` ,,(, r � ..� , �Pw1ENi, LLC. DO NOT USE FOR � W ACQUISITION f l��. L r . , , � �' , ' I , I , � .. _ I - , _'r', _ ' , �� + _ ��.-° . :r- ti : .'' - . E � , E� _. r � � . - � �i ! .� . � _ 7, � a - �rr. • , , e ,- , o . n r . � . I � � ���.,,. ".�_� _ .� � ¢ s►/ � " ' -.w" ,,� . . � a � •� r � �� _� . ' " ' � ' �� � � . . , � _ "'^../�' . �� � � - � , . � . :�► - . � t� � � , ' � ' . , � . • . . - ' ' • . � . ~'y��� J , � "'1. . � : � " � , / •" . . , ' �roP: 7g o2 ss � ! ,, , ;, r�t� � s � r' , � �N�° �2•s► 8' HOP DOCUMENT NOT CONSIDERED FINAL , . 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