The lane closure is necessary for the Harbor Bridge Project, officials said. Credit: KIII Author: KIII Staff Updated: 3:01 PM CDT June 15, 2021 Officials with the Harbor Bridge Project said all southbound lanes on I37 near the Crosstown Expressway interchange will be closed overnight Thursday, June 17 from 9 p.m. until 6 a.m. on Friday June 18. Drivers headed southbound toward downtown and North Beach will be detoured onto southbound Crosstown Expressway (286) and can make a U-Turn at the Tarleton exit. TRAFFIC ADVISORY June 15, 2021 Upcoming Harbor Bridge Project freeway closure to affect all southbound IH 37 mainlanes near the IH 37 and SH 286 (Crosstown Expressway) interchange