Motorists on northbound MoPac will see a new traffic pattern before Thanksgiving, the Central Texas Regional Mobility Authority said Thursday.

During the overnight hours of Nov. 21, crews will shift the two northbound lanes of MoPac to go over the new express lane underpass just north of the Enfield Road exit. CTRMA said the work will allow crews to finish work on the third northbound lane.

As of Nov. 21, work to restore the third northbound lane is set for the weekend of Dec. 2-5. CTRMA said the work will involve reducing northbound MoPac to one lane between Lady Bird Lake/Town Lake and Enfield Road.