Description: A Rooftop Runoff Management System means a system of collection and stabilization practices (drip line stabilization, guttering, collection boxes, etc.) to prevent rainfall runoff from agricultural rooftops from causing erosion where vegetative practices are insufficient to address erosion concerns and protect water quality.
Rooftop Runoff Managment Policy
Requirements for Erosion and Nutrient Management Measures
General Policies for Commission Cost Share Programs
Maintenance Period: 10 years
Additional Spot Check Requirements: None
BMP Units: Each
Cost Information: Average cost (75% or 90%). Refer to ACSP Average Cost Lists for details.
CS2 Project Description examples
Expected Results:
Soil saved
Acres affected - (treated area)
Reference Materials:
NC-ACSP-11 Signature Page
Map with BMP location, fields, and roads
For 90% Cost share, please upload the NC-CSPs-1E form.
| CS2 Common Components | Units |
|---|---|
| FILTER CLOTH - Geotextile fabric | SqYd |
| GRADING - Medium, <=6in avg | Acre |
| GRADING - Minimum, <=1/4 acre | Acre |
| EROSION CONTROL MATTING - TEMP, 12 MONTHS or less LONGEVITY |
SqYd |
| EROSION CONTROL MATTING - TEMP, 18-36 MONTHS LONGEVITY | SqYd |
| EROSION CONTROL MATTING - TEMP, < 400 SQ FT, STRAW -12 MONTHS OR LESS LONGEVITY | SqFt |
| PIPE - CORRUGATED METAL, galvanized and bituminous coated with paved invert, various gauges and sizes- includes excavation and backfill | LinFt |
| PIPE - Perf drain w/ 2'X2' GRAVEL FILTER, INCLUDES EXCAVATION/BACKFILL OF 2'X3' PER LF | LinFt |
| PIPE - Polyvinyl Chloride 6" (does not include excavation) | Each |
| PIPE FITTING - Corrugated Polyethylene 6" | Each |
| STONE - gravel | Ton |
| STONE - riprap | Ton |
| VEGETATION ‐ bag lime, seed and fertilizer | Acre |
| VEGETATION - seedbed prep | Acre |
| GUTTERS-assembled alum/vinyl 5" | LinFt |
| GUTTERS-assembled alum/vinyl 6" | LinFt |
| GUTTERS-downspouts | LinFt |
| GUTTERS-seamless alum 5" | LinFt |
| GUTTERS-seamless alum 6" | LinFt |
JAA:
NRCS - 558 - Roof Runoff Structure
NRCS Supporting Standards: None
Refer to the SWCC JAA Application Requirements for details.