Construction on northbound I-35 from Grand Avenue Parkway to SH 45 is now underway.

The changes will reverse the northbound I-35 entrance and exit ramps at the SH 45 intersection to alleviate traffic congestion, according to an Aug. 4 Texas Department of Transportation news release. The project kicked off Aug. 2.

“I-35 at SH 45 North is a key intersection that connects the surrounding communities of Cedar Park, Pflugerville and Round Rock to Austin,” TxDOT Austin District Engineer Tucker Ferguson said in the release. “Reversing the entrance and exit ramps will improve safety and mobility for motorists on both the northbound mainlanes and the frontage road.”

Additional improvements include extended entrance and exit lanes, new lighting installation and roadway improvements at the intersection of Piccadilly Drive and the I-35 frontage road, per the release.

The project's cost is estimated at $8.2 million, with funding provided by the Capital Area Metropolitan Planning Organization and TxDOT. The project anticipates a mid-2021 completion, according to project documents.