Nightly closures of all northbound MoPac lanes will begin Tuesday as crews work to restore the third lane.

The Central Texas Regional Mobility Authority said the closures will start at 8 p.m. and last until 5:30 a.m. each night until the work is complete. The initial plan was for crews to work the weekend of Dec. 3-4 and restore the lane, but the work was moved up with the threat of cooler weather and rain. Work is expected to take at least four nights, and weather conditions overnight could warrant additional closures the week of Dec. 5 to complete the work.

Northbound motorists will be detoured off MoPac at the Enfield Road exit and pass through the Enfield Road intersection before re-entering MoPac. The Cesar Chavez and Sixth Street to northbound MoPac will also be closed and motorists diverted to the Enfield Road onramp. Police will be managing traffic at the Enfield Road signal to keep traffic moving.

The third northbound lane on MoPac has been closed since February 2016 when traffic was realigned to construct the express lane underpass. The goal of the work is to have the third northbound lane reopened before the Trail of Lights begins Dec. 10.

CTRMA is encouraging motorists to avoid northbound MoPac and take alternate routes, as the work is expected to cause “significant travel delays.”

GO HERE for more information about the MoPac Express Project.