The Captain William Moore Bridge is a unique and somewhat eerie structure located near Skagway, close to the border of British Columbia. Built in 1976, this steel bridge is known not just for its design but also for the unusual geological conditions surrounding it.
What makes this bridge particularly fascinating is that it spans a deep earthquake fault line. To prevent damage during seismic activity, engineers from the Alaska Department of Transportation designed it in a way that allows flexibility. The bridge is anchored at only one end, enabling it to move safely during earthquakes without breaking apart—an innovative solution for such a risky location.
Although relatively short—around 110 feet for the main suspended section and about 300 feet in total length—the bridge can feel quite unsettling to cross. Its structure, combined with the knowledge of the active fault line beneath, gives it a reputation as one of the more “creepy” bridges in the world.
Despite its intimidating nature, the Captain William Moore Bridge is also considered an important engineering achievement and a point of interest for travelers. Visitors exploring Alaska often find it a worthwhile stop, especially those interested in unique infrastructure and the challenges of building in extreme environments.