Ramps to Mockingbird Lane on the Dallas North Tollway are closed.
The northbound exit ramp and the southbound entrance ramp will remain closed until February 15.
The southbound entrance ramp closed Monday and the northbound exit ramp will close Wednesday.
The closures are part of the Mockingbird Lane construction project.
Work on the entrance and exit ramps is expected to be complete February 15, but could be delayed by weather conditions.