1.3 BMP C103 - High Visibility Fence
Restrict clearing to approved limits.
Prevent disturbance of sensitive areas, their buffers, and other areas required to be left undisturbed.
Limit construction traffic to designated construction entrances or roads.
Protect areas where marking with survey tape or flagging may not provide adequate protection.
To establish clearing limits, plastic, fabric, or metal fence may be used:
At the boundary of sensitive areas, their buffers, and other areas required to be left uncleared.
As necessary to control vehicle access to and on the site.
1.3.3 Design and Installation Specifications
High visibility plastic fence shall be composed of a high-density polyethylene material and shall be at least four feet in height. Posts for the fencing shall be steel or wood and placed every 6 feet on center (maximum) or as needed to ensure rigidity. The fencing shall be fastened to the post every six inches with a polyethylene tie. On long continuous lengths of fencing, a tension wire or rope shall be used as a top stringer to prevent sagging between posts. The fence color shall be high visibility orange. The fence tensile strength shall be 360 lbs./ft. using the ASTM D4595 testing method.
If appropriate, install fabric silt fence in accordance with BMP C233 - Silt Fence to act as high visibility fence. Silt fence shall be at least 3 feet high and must be highly visible to meet the requirement of this BMP.
Design and install metal fences according to the manufacturer's specifications.
Metal fences shall be at least 3 feet high and must be highly visible.
Do not wire or staple fences to trees.
If the fence has been damaged or its visibility reduced, it shall be repaired or replaced immediately and visibility restored.