Public Motorized Trespass and Administrative Activity on Closed Roads in the Upper Swan, Lower Swan, and Noisy Face Geographic Units
256 road closures in the Upper Swan, Lower Swan, and Noisy Face Geographic Units were inspected to determine 1) the effectiveness of closure devices in blocking public motorized trespass, and 2) where administrative use of gated roads is apparent. 52.7% (135) showed evidence of public motorized trespass. An additional 9.8% (25) showed evidence of â€œadministrativeâ€ activity, which may have included unauthorized use of gate keys. 37.5% (96) of the closures effectively blocked public motorized trespass and showed no signs of â€œadministrativeâ€ use. However, 42.7% (41) of these â€œeffectiveâ€ closures had unused detour spaces on one or both sides of the closure device, indicating potential for future failure.