Update: TxDOT says this closure is now delayed till next Monday, February 16.

Original post: The I-35 northbound frontage road north of Riverside Drive is closing Monday. The closure includes the eastern sidewalk on the bridge.

TxDOT put out this video showing the detour. (I added some text at the start.)

“This traffic pattern will remain in place through 2029, weather permitting,” TxDOT says.