Barbed wire supports shall be twelve-gage pressed steel or malleable
iron set 45° (inward or outward) from posts. Supports shall withstand
250 pounds downward pull at end without failure.
Tension wire, seven-gauge core wire, galvanized, with tensile strength
of 75,000 psi. Hog ring ties twelve-and-one-half-gauge wire shall
be used to tie fabric to tension wire.
Stretcher bar, 3/16 inches by 2/4 inches steel bar or equivalent
fiberglass rod. Length shall be two inches less than full height of
fabric sheer fabric meets terminal posts.
A latch shall be a forked type capable of retaining a gate in a closed
position and have provisions for a padlock. A latch shall permit operation
from either side of the gate.
Install four-foot high fence around stormwater basins. Six-foot high
fence with barbed wire shall be installed at pump station sites or
as otherwise directed.
Place terminal post at each fence termination and change in horizontal,
or vertical direction of 30° or more. Space line posts at equidistant
spaces minimum eight feet, 10 feet maximum on centers.
Drill holes in firm, undisturbed or compacted soil. Holes shall have
diameter four times greater than outside dimension of post and depth
approximately six inches deeper than bottom of post forty-two-inch
minimum depth). Excavate deeper as required for adequate support in
soft or loose soils and for posts with heavy lateral loads.
Place concrete around posts in a continuous pour. Top of concrete
shall be one inch to two inches above surrounding grade and sloped
to direct water away from posts. Maintain position of post (vertically
and horizontally) during placement operations.
Install horizontal brace at midheight for fences six feet and higher
on each side of terminal posts. Install diagonal truss rods, at same
posts, adjusting to ensure posts remain plumb.
Attach fence fabric so that fabric remains in tension after pulling
force is released. Allow two inches clear space between finished ground
and bottom selvage.
Attach fabric to bracing, rails and line posts with wire ties ±
15 inches on center. Attach fabric to tension wire, if any, with hog
ties at 24 inches on center.
Barbed wire. Uniformly space strands of barbed wire on the support
arms. Each strand shall be pulled taut and securely fastened by clips
or in slots of each support.
Swinging gates. Set posts in concrete and attach fabric. Locate and
place gate stops so that drop rod fully engages. Attach hardware by
means which will prevent unauthorized removal. Adjust hardware for
smooth operation of gate leaves.