West Tangerine Road from I-10 to North Dove Mountain Boulevard in Marana is going to be closed from 6 a.m. Wednesday, March 10, through 6 p.m. Thursday, March 11.
The Union Pacific Railroad is performing crossing repairs during that 36-hour period.
"Use alternate routes," a release said.
Camino de Anza Road at the Hardy / Northern intersection remains closed during construction of a roundabout.
Work began in early February.
A detour sign is posted to direct traffic to Hardy and Camino Coronado.