Spiro Tunnel Rehabilitation
TUNNEL REHABILITATION Harrison Western rehabilitated the Spiro Tunnel portal and 5,400 LF of tunnel. The portal entrance was widened during excavation to make room for a historical display cataloging the tunnel’s unique Park City history. HW removed the failed existing support structures throughout the tunnel and replaced them with steel sets, resin and grouted bolts, […]
Rio Grande Reservoir Inlet/Outlet Tunnel
TUNNEL REHABILITATION Harrison Western rehabilitated this 100-year-old water tunnel, which sits at 10,000 feet elevation. The tunnel is 14′ wide, 12′ tall, and 400′ long. Work included pattern bolting, shotcrete, and pressure grouting. HW also drove a new 80’ long bypass tunnel, which was also bolted and reinforced with steel and shotcrete. Other Projects ALL […]
Laramie-Poudre Tunnel Rehabilitation
Tunnel Rehabilitation Harrison Western rehabilitated almost half of this two-mile, trans-mountain irrigation water tunnel that was originally built in 1910. HW removed degraded steel and timber sets and filled dangerous overhead cavities with structural foam. After a major scaling operation, HW reinforced the tunnel with new steel sets, pattern rock bolting, shotcrete, and pressure grouting. […]
