Contractors handling improvements to Loop 1604 in North San Antonio will fully close both westbound and eastbound main lanes of the freeway at Blanco Road from 9 p.m. March 24 to 5 p.m. March 25.

The Texas Department of Transportation said the closure is due to construction at the northbound Blanco Road bridge, which is part of an effort to upgrade the Blanco/Loop 1604 intersection.

According to TxDOT, all westbound traffic will detour to the westbound frontage lanes at the Blanco Road exit ramp east of Blanco and re-enter the freeway using the entrance ramp west of Blanco.

All eastbound traffic will detour to the eastbound frontage lanes at the Blanco Road exit ramp west of Blanco and re-enter the freeway using the entrance ramp east of Blanco.