20190591 Ver 1_B5980_HYD_SMPv2 08_20190222_20190507 (2)

k Ilh�t'EIVi North Carolina Department of Transportation k
�li)1'l Highway Stormwater Program
STORMWATER MANAGEMENT PLAN^^
(Version 2.08; RelePApril rl FOR NCDOT PROJECTS
WBS Element: 47617.1.1 TIP No.: B-5980 County(ies): Nash Page 1 of 1
General Project Information
WBS Element:
47617.1.1 TIP Number: B-5980 Project Type: Other Date: 2/22/2019
NCDOT Contact:
Jake Green, PE, PLS
Contractor / Desi ner:
Dennis Hoyle, PE, PLS / AECOM
Address:
509 Ward Blvd.
PO Box 3165
Wilson, NC 27895
Address:
701 Coroporate Center Dr.
Suite 475
Raleigh, NC 27607
Phone:
252-640-6420
Phone:
919-854-7748
Email:
'c reen ncdot. oy
Email:
Dennis. Ho
le aecom.com
City/Town:
Rocky Mount, NC
Count kes :
Nash
River Basin(s):
Tar -Pamlico
ICAMA County?
I No
Wetlands within Project Limits?
No
Project Description
Project Length (lin. miles or feet):
0.69 Surrounding Land Use: lCommercial, residential, and agricultural mix
Proposed Project
Existing Site
Project Built -Upon Area ac.
9.4 ac.
8.1 ac.
Typical Cross Section Description:
Two lane roadway with 12' lanes and paved shoulders. Diamond interchange of 1-95 and
NC 4 utilizing two round -a -bouts.
Two lane roadway with 12' lanes and grassed shoulders. Existing trumpet interchange
of 1-95 and NC 4.
Annual Avg Daily Traffic (veh/hr/day):
Design/Future: 39,700 Year: 2040
Existing: 27,500 Year: 2017
General Project Narrative:
(Description of Minimization of Water
Quality Impacts)
The North Carolina Department of Transportation (NCDOT) proposes to replace Bridge No. 630203 over I-95 and make improvements to the 1-95 and NC 4 interchange (exit
145). The project is located north of Rocky Mount in Nash County (see Figure 1). The proposed action is listed in the NCDOT 2018-2027 State Transportation Improvement
Program (STIP) as project number B-5980, and is included in the Upper Coastal Plain Rural Planning Organization's (RPO) Draft STI P5 Project list. The project is described as
"interchange improvement to remove tight radius ramp to accommodate trucks due to CCX [intermodal terminal] project."
The design will replace the existing trumpet interchange at 1-95 and NC 4 with a new diamond interchange. No improvements will be made to 1-95.
Existing drainage patterns are maintained utilizing grassed channels wherever possible throughout project. Only one site of jurisdictional stream and buffer impact due to a
proposed rip rap outlet pad. Only one site of wetland impacts due to pavement removal.
Waterbody Information
Surface Water Body 1 : UT to Giles Branch
NCDWR Stream Index No.:
28-78-4
NCDWR Surface Water Classification for Water Body
Primary Classification:
Class C
Supplemental Classification:
Nutrient Sensitive Waters (NSW)
Other Stream Classification:
None
Impairments:
None
Aquatic T&E Species?
No Comments:
NRTR Stream ID:
SB
Buffer Rules in Effect: Tar -Pamlico
Project Includes Bridge Spanning Water Body?
No
Deck Drains Discharge Over Buffer? N/A
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
General Project Narrative)
(If yes, provide justification in the General Project Narrative)