Creation of an undisturbed area or strip of natural vegetation or an established suitable planting that will provide a living filter to reduce soil erosion and stormwater velocities.
Buffer zones are used along streams, wetlands and other bodies of water that need protection from erosion and sedimentation. Vegetative buffer zones can be used to protect natural swales and can be incorporated into the natural landscaping of an area.
Do not use critical area buffer zones as sediment treatment areas. Do not disturb critical area buffers.
1.2.3 Design and Installation Specifications
Preserve natural vegetation or plantings in clumps, blocks, or strips as this is generally the easiest and most successful method. However, single specimen trees and plants should also be preserved.
Leave all unstable slopes in their natural, undisturbed state.
Mark clearing limits and keep all equipment and construction debris out of the natural areas. Steel construction fencing is the most effective method of protecting sensitive areas and buffers. Alternatively, wire-backed silt fence on steel posts is marginally effective. Flagging alone is not allowed.
Keep all excavations and material storage areas outside the dripline of trees and shrubs.
Do not push debris or extra soil into the buffer zone area because it will cause damage from burying and smothering.
Vegetative buffer zones for streams, lakes or other waterways shall be established by the City or other state or federal permits or approvals.
Inspect the area frequently to make sure fencing remains in place and the area remains undisturbed. Fix or replace damaged fencing immediately.