Harbor Bridge construction causing closures on IH-37 Friday night Continuing work on the new Harbor Bridge will cause some lane closures overnight on Friday evening and early Saturday morning. By: Site Administrator and last updated 2021-06-03 13:49:05-04 CORPUS CHRISTI, Texas â Ongoing work on the new Harbor Bridge will cause some lane closures overnight on Friday. Starting Friday at 9 p.m., crews will shut down all IH-37 main lanes near the intersection with the Crosstown Expressway. Drivers will have to exit at Port Avenue and take the frontage road until the new Stillman Avenue on-ramp. People coming from downtown will need to follow the detour signs to the same ramp. The closures will last until 6 a.m. Saturday.