A total of ten special routes of U.S. Route 71 exist.
. . . Special routes of U.S. Route 71 . . .
Bypass 71 is a controlled access highway at Alexandria, Louisiana. Its northern terminus is an interchange with Interstate 49 and U.S. Routes 71 and 165 north of Alexandria. Its southern terminus is at an interchange with Interstate 49 and U.S. Routes 71 and 167 south of Alexandria. Bypass 71 runs a total distance of approximately 6 miles (9.7 km) and is concurrent with I-49 its whole length. It is signed at both the north and south termini as By-Pass US 71.
Business U.S. 71 in Waldron runs approximately 7 miles (11 km) beginning at U.S. 71 2½ miles north of Waldron and ending at U.S. 71 4½ miles south of Waldron. Signed locally as Main Street, it was created in 1971 after U.S. 71 was rerouted around the west side of town.
. . . Special routes of U.S. Route 71 . . .