The replacement for the William Henry Moore Bridge has been delayed until Fall of 2019, ac- cording to the Alaska Department of Transportation (AKDOT).
to that of a dam, according to Landau. Utilizing roller compacted concrete, the new bridge will allow the river to pass through the base of the bridge, while still providing the stability for cars to pass over.
The bridge, which has been contracted out to Hamilton Construction LLC., was originally sup- posed to be complete on Aug. 31, 2018.
Once construction is complete on the new bridge, the roller compacted concrete bridge will have a much longer lifespan than the current bridge, which was built in 1976.
Currently, bridge construction has stopped for the season with only certain parts completed, according to Aurah Landau, public information officer with AKDOT.
The current bridge was built in a specific way to deal with the seismic activity that comes from the fault line in the gorge.
Construction of the bridge initially started in May of 2017, with plans to complete controlled blasting, embankment construction for the wayside parking lot and bridge viewing area, 75’ multi- plate pipe arch installation and initial concrete fill in 2017 and the finalization of the embankment and parking lot to be done 2018.
The current bridge, which is at approximately milepost 9.5 on the Klondike Highway needs replaced as it’s too narrow to meet the current highway standard. In addition, the sizes of trucks making the trip in and out of Skagway have increased since the bridge was constructed. Due to this, passing trucks on the route put more stress on the bridge than was expected when it was built.
As of right now, the initial piping and concrete have been laid down for the bridge replacement, according to Landau. When construction begins next summer, the plan is to have that portion paved
The new bridge will be around 150 feet to the west of the current bridge and will slightly change the path that people use while driving in and out of Skagway. The bridge will be a wedge in the gorge and match the height of the current bridge.
Though the old bridge will no longer be used for vehicle traffic after the construction of the new one is complete, it will still be open for pedestrian traffic and used as a spot for visitors to view part of Alaska’s history, Landau said.