Alaska’s Pretty Rocks Landslide to receive CMGC facelift from Granite Construction
The Pretty Rocks Landslide intersects Denali Park Road near its midpoint at Mile 45.4, rendering the remaining 47 miles of roadway impassable for the past two tourist seasons. Geological monitoring data indicates that the debris flow’s rate of movement has increased dramatically in recent years, at times moving up to 12 inches per day. Current maintenance efforts are no longer sustainable in the face of the continued and accelerating movement.
The Polychrome Area Improvements project scope includes construction of an approximately 475-foot-long single-span steel truss bridge, which will span the active Pretty Rocks Landslide. Supporting the bridge and improving ground conditions is a combination of earthwork, micropiles, rock anchors, precast concrete abutments, and thermosiphons (which are employed to maintain existing permafrost in a frozen state).
"Our specialized team is enthusiastic to partner with FHWA and its designer to produce a constructible design," said Granite Project Executive, Todd Keller. "Minimizing our impact on park operations and preserving the natural beauty of the site is of utmost priority while constructing this challenging project.”
“Logistics play a prominent role in the construction of this project, with materials handling, worker camp establishment, park restrictions on travel times, and the remote location all contributing to the complexity of the work,” said Granite VP of Regional Operations, Derek Betts. “We look forward to working with the Western Federal Lands Highway Division of the FHWA and the National Parks Service to re-establish access to Denali Park's popular visitor destinations and facilities.”
Granite is America’s Infrastructure Company™. Incorporated since 1922, Granite (NYSE:GVA) is one of the largest diversified construction and construction materials companies in
View source version on businesswire.com: https://www.businesswire.com/news/home/20230215005052/en/
Erin Kuhlman 831-768-4111
Wenjun Xu - 831-761-7861