SW6220601_Stormwater Narrative_20220629

KEN BRIGHT ASSOCIATES, PLLC
Consulting Engineers
MAGNOLIA RIDGE SUBDIVISION - NARRATIVE
River Basin: Cape Fear
Stream Index: 18-23-29-1
Stream Name: McLeod Creek
Classification: C
Watershed: NA
Total Project Area: 52.55 Ac
BUA = 22.76 % Low Density Project
Wetlands: There are wetlands on site that will not be disturbed. Attached is the wetlands
report by Hall Owen and Associates.
Site Existing Conditions: The site has a single-family home, some old barns and the rest is
wooded.
Soils: As per the attached soils map, more than 85% of the soils are LaB (Lakeland Sand).
Stormwater Management: This is a Phase 2 project. Since this is a low -density project, the
stormwater will be treated with dispersed flow and vegetated swales along the roads.
Two dry ponds have been designed for volume control to reduce flow to downstream storm
drainage.
The proposed roads will have 20' asphalt and ditches with a 4:1 side slope. There will be 5
cross pipes under the roads. This project proposed grading the road only. The wetlands on site
that are not going to be impacted by this project.
Each lot will be served with a private onsite sewer system. Attached is the soils report
prepared by the soil scientist.
Pipes under lot driveways will be installed only if needed when the lots are developed.
All swales will have Bermuda Grass or equal and the velocities are less than 4 fps.
P.O Box 553
2305 Carthage Street
Sanford, NC 27330
Phone: [phone]
e-mail: [e-mail]