The highway carried by the Long-Allen bridge terminates near Mount Shasta.
The LongAllen Bridge is a truss bridge in Shreveport, Louisiana, named for Louisiana governors Huey Long and Oscar K. Allen. 
 Opened in 1933, it carries U.S. Route 80 across the Red River. 
U.S. Route80 (US80) is an eastwest United States Numbered Highway, much of which was once part of the early auto trail known as the Dixie Overland Highway. 
 The highway's eastern terminus is in Tybee Island, Georgia, at the intersection of Butler Avenue, Inlet Avenue, and Tybrisa Street, near the Atlantic Ocean. 
