HOUSTON – A traffic nightmare is scheduled to begin on the West Loop at the Southwest Freeway this weekend. Construction closures will start Friday at 9 p.m. and continue through Monday at 5 a.m.All I-610 West Loop northbound and southbound lanes at I-69 Will be closed. northbound traffic will be diverted onto the 610 feeder at Westpark, while southbound traffic will be diverted onto I-69 southbound. You’ll need to u-turn at Chimney Rock and then proceed onto 610 southbound from I-69 northbound. Also know that the connector ramps from the Southwest Freeway to the West Loop will remain open.