The Texas Department of Transportation will close all southbound main lanes of I-69 Southwest Freeway at I-610 West Loop from Sept. 18 at 9 p.m. until Sept. 21 at 5 a.m., the agency announced in a Sept. 17 news release.

The closure is part of work being performed for the I-610 West Loop/I-69 Southwest Freeway interchange project, with crews working to restripe the I-69 Southwest Freeway mainlanes at I-610 West Loop to shift the moving lanes of traffic, according to the announcement.

Motorists can expect additional delays during construction, including the closure of various connector, entrance and exit ramps. Those closures can be found here.