Traffic approaching the plaza from the San Antonio Street bridge will be detoured along North Market Avenue, East Mill Street and North Seguin Avenue to return to the plaza.
Motorists traveling toward the bridge from the plaza will be detoured along Comal Avenue, Tolle Street and Gilbert Avenue to reach East San Antonio Street.
The closures are scheduled to last from 8 a.m.-4 p.m. daily to allow crews to maneuver equipment and materials.
For additional information, contact NBU at 830-608-8831 or visit the NBU road closures website.