The Williams Drive bridge will also be impassable during the closures, which will run from 9 p.m.-10 a.m. both Friday and Saturday night, according to a TxDOT press release.
This construction is part of the ongoing process to bring a diverging diamond intersection, or DDI, to the Williams Drive bridge over I-35. The new DDI is expected to open in late 2023.
The main lanes of I-35 will be closed from Lakeway Drive to Hwy. 29. Northbound through traffic will be detoured onto the frontage road using the Williams Drive exit and will re-enter the highway north of Northwest Boulevard. Similarly, southbound traffic will detour at Williams Drive and re-enter using the Hwy. 29 ramp.
Traffic going east on Williams Drive will be detoured to the southbound I-35 frontage road where they will make a U-turn at Hwy. 29. Similarly, westbound traffic on Williams Drive will use the northbound I-35 frontage road and make a left turn at Lakeway Drive.
This is the third time TxDOT has closed this portion of I-35 and the Williams Drive bridge in 2023. The first round of closures came in January, when crews demolished and removed a portion of the bridge. Earlier in March, the roads were closed to set beams for the reconstructed bridge.