Iditarod National Historic Trail - Upper Ingram Creek Bridge Construction

Construction of a 40-foot wooden glulam beam bridge crossing Upper Ingram Creek connecting existing sections of the Iditarod National Historic Trail, located in Turnagain Pass, AK. All materials including foundations, wooden glulam bridge components, tools and equipment were all flown in and also removed using a variety of helicopters sized to meet our specific needs.

During the fall of 2020, pre-cast concrete bridge sills and the wooden glulam beams were flown in via helicopter and placed in the exact bridge location. Decking of the bridge was also completed prior to the onset of winter. The site preparation was previously completed by the US National Forest Service trail crews.

During the summer of 2021, the Alaskan Yellow Cedar handrail materials were flown in and handrail constructed. Backfill and associated trail work was performed by hand, utilizing native materials and capped with imported gravel for the bridge ramps.

This bridge now completes a continuous 8 mile trail loop that can be accessed via two different trailheads along the Seward Highway. This trail is great for hiking, biking, skiing and pack horse. Enjoy!