Vegetative Filtering System Maintenance Guidelines
Diaphragm: inspect annually, remove sediment as needed, replace when voids filled
Side slopes: inspect for erosion rills and gullies, seed/sod bare areas as needed
Inflow forebay: inspect annually for sediment buildup, remove excessive sediment
Sand/soil bed: periodically inspect and correct eroded areas
Bed surface: roto-till or cultivate the top of the bed as needed to ensure filtration
Notes:
The general maintenance elements on the next two slides are applicable to all of the four vegetative practice design variations. Inspections are an integral part of any maintenance program. These four vegetative filtering practice variations should be inspected on a semi-annual basis for the first year, and after major storm events. After the first year, annual inspections should be sufficient.