Officials at Yellowstone National Park are alerting park visitors to expect detours and delays at the Old Faithful interchange. The overpass was closed on July 22nd due to safety concerns for the National Park Service to evaluate the condition of the bridge and traffic was routed around the overpass bridge. At this time, the Old Faithful overpass bridge remains closed as the repair work continues. The closure allows crews full access to the entire deck surface and approach lanes. This work includes deck repairs, new approach slabs, new curbing, girder repairs, railing improvements, and the removal and replacement of deck drains. That means there will be detours and delays while the work is being done. Travelers should consider taking another route if they are not destined for the Old Faithful Geyser Basin. Projected completion of the work is late October, weather permitting.