|Length||0.180 mi (0.290 km)|
Final official length in 2006
|South end||0.18 miles south of SR 651|
|North end||SR 651|
SR 657 was established on July 1, 1976, as part of the 1976 renumbering of Nevada's state highway system. It previously comprised a significant portion of Keystone Avenue, with a routing that extended from the road's SPUI interchange with Interstate 80 north to North McCarran Boulevard (SR 651). The route may have extended as far south as California Avenue at one time.
By 2001, SR 657 had been truncated to the northernmost 0.18 miles (0.29 km) near McCarran Boulevard. This short segment was removed from the state highway system by January 2008.