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BMP C103: High Visibility Plastic or Metal Fence
Purpose Fencing is intended to: (1) restrict clearing to approved limits; (2) prevent
disturbance of sensitive areas, their buffers, and other areas required to be
left undisturbed; (3) limit construction traffic to designated construction
entrances or roads; and, (4) protect areas where marking with survey tape
may not provide adequate protection.
Conditions of Use To establish clearing limits, plastic 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.
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.
Metal fences shall be designed and installed according to the
manufacturer's specifications.
Metal fences shall be at least 3 feet high and must be highly visible.
Fences shall not be wired or stapled to trees.
Maintenance
Standards
If the fence has been damaged or visibility reduced, it shall be
repaired or replaced immediately and visibility restored.