Side streets are in your future.
All northbound main lanes on I-37 at the interchange with state Highway 286 (Crosstown Expressway) will be closed on Wednesday, April 21, according to a statement Wednesday from Flatiron/Dragados, the chief contractor on the bridge project.
Also closed on that day will be the direct connector from northbound Highway 286 to northbound I-37.
The closures will be from 9 p.m. to 6 a.m. on April 22.
Flatiron/Dragados said the closures are needed to allow crews to construct new interchange bridges as part of the Harbor Bridge Replacement Project, which is now in its 56th month.
Motorists heading north on I-37 towards Calallen will be detoured at the Port Avenue exit ramp and remain on the Martin Luther King Drive frontage road. They will be able to reenter northbound I-37 at Up River Road.