|
| |
|
|
When Best Management Practices (BMPs)
are installed and maintained correctly, they can help ensure that sediment
generated from construction activity remains onsite. The following BMPs
are commonly used for individual lot construction:
Construction Entrance
- Use large stone
- Install during clearing phase
- Use to prevent tracking soil onto road
- Maintain throughout construction
Sediment Barriers
- Use to filter sheet flow runoff
- Install during clearing phase
- Use combination barriers when necessary
- Maintain until vegetation is established
- Make sure it is installed correctly by entrenching a portion of
barrier in the ground, so it can trap sediment and intercept runoff
Sediment Cleanup
- At the end of each work day sweep or scrape soil tracked on to roads
- After storm events inspect for off-site sediment movement and repair
-
Remove sediment that penetrated barriers and clean
build-up
Rock Outlet Protection
- Use to dissipate energy from concentrated flows
- Helps prevent eroded channels downstream
-
Use oversized stone appropriate for design velocities
Inlet Protection
- Protect all storm sewer inlets– they are a direct conveyance to
streams and rivers
-
Filter fabric and temporary seeding are standard for
inlet protection
Stockpile Placement and Protection
- Build stockpiles away from critical areas such as streams, drainage
ways, and storm sewer inlets
-
Temporarily seed or mulch then immediately to protect
against erosion
Re-vegetation/Surface Protection
- Ground cover is the most effective way to control sediment runoff,
whether it be temporary or permanent
- Use seed or sod to cover exposed soils after final grade completed
- Use temporary seed, such as annual rye, to stabilize pile until
removed or re-graded
- Seed critical areas such as drainage swales, right-of-way areas,
areas
- Mulching can be used when temporary seeding is not practical and can
be done in any weather situation
|
|
|
