Out exploring Chattanooga Tennessee and its historic Walnut Street Bridge over the Tennessee River in the foothills of the Appalachian Mountains. The 2,376 feet Walnut Street Bridge was built in 1890 was the first to connect Chattanooga's downtown with the North Shore. The bridge was closed to motor vehicles in 1978 and sat in disuse and disrepair for nearly a decade. Repairs and structural modifications have been made to turn the bridge into what is now a pedestrian walkway.