Civil engineer guide to fighting positions, shelters, obstacles

AFH 10-222 Volume 14 1 August 2008 88
4.5. Prefabricated Obstacles. The remainder of this chapter focuses on those
obstacles that are usually prefabricated and moved into place as needed, and
those obstacles that are not usually considered expedient due to the time and
materials needed for construction.
4.5.1. Chain Link Fencing. Chain link fencing can be used to form a continuous
obstacle around a site. Although they are considered obstacles to pedestrian
traffic, fences are not very effective unless reinforced using cables or
other methods to prevent them from being easily breached. This can be accomplished
with cable at least ¾-inch in diameter. The cable is strung at 30
inches and 35 inches above the ground (Figure 4.15). Fences can also be
used in conjunction with other security measures such as berms, earth-filled
containers, surveillance cameras, motion detectors, etc. Once constructed,
they should be inspected frequently to detect evidence of breaches and to
ensure any maintenance needed is identified. For additional details on designing
security fencing, reference MIL-HDBK-1013/10, Design Guidelines for
Security Fencing, Gates, Barriers, and Guard Facilities (will be republished
as UFC 4-022-03). If it is determined that fence construction should be accomplished
via local contract, the specifications in UFGS-32 31 00.00 10,
UFGS-32 31 13.00 20, and UFGS-32 31 13.00 40 can be used in developing
the contract Performance Work Statement (PWS). This document, along with
any other UFGS documents, can be downloaded from the Whole Building
Design Guide (WBDG) website at http://www.wbdg.org.
Figure 4.15. Fence Reinforced With Cable.