Parks Highway MP 237 Riley Creek Bridge Replacement
Gateway to Denali Park, Alaska
Start Date: September 2014
End Date: September 2016
Hamilton Construction Alaska Co. partnered with the Alaska Department of Transportation and Public Facilities on their first heavy civil CM/GC project. The Parks Highway MP 237 Riley Creek Bridge Replacement CM/GC project was a highway improvement and bridge replacement project. Our team replaced a structurally deficient structure over Riley Creek with a new two-span deck bulb-tee girder bridge.
In addition to the new 230-foot bridge over Riley Creek, our team realigned the Parks Highway to upgrade a substandard curve and minimize traffic impacts during construction. We also added a left turn pocket to the Parks Highway at the Park Road and a right turn pocket was added for southbound traffic to further reduce delays and improve safety for motorists. Our team widened the bridge to accommodate left turn access to the Park Road and increased the shoulders for pedestrian and bicycle traffic. Minor realignment of the adjacent pedestrian and bicycle path also improved travel for pedestrians and cyclists.
During the planning process, our team developed creative staging strategies to keep traffic moving during the busy summer season. To reduce overall impacts, we worked closely with the owner, Federal Highway Administration and the National Park Service on traffic management and scheduling throughout the entirety of the project. Collaboration during the preconstruction phase helped identify risks and required permits – a huge contributing factor to the project completing a full season ahead of schedule.