Survey work needed by the Central Texas Regional Mobility Authority continues this week along US 183 in Northwest Austin and will result in overnight lane closures throughout the week.

The work is related to design of the 183 North Mobility Project, according to a Mobility Authority public release.

Each day this week, motorists can expect intermittent lane closures along US 183 northbound in the left lane and left shoulder between Great Hills Trail and Lakeline Mall Drive as work crews arrive and leave job sites.

Main impacted areas include:

  • the left southbound lane of the US 183 frontage road from Anderson Mill Road to Spicewood Springs Road from 9 p.m.-5 a.m. on June 21;

  • on June 21-22 from 9 p.m.-5 a.m., the U-turn lane on the US 183 southbound frontage road at Oak Knoll Drive; the left shoulder of the 183 southbound frontage road at Oak Knoll; the U-turn lane on the US 183 southbound frontage road between Duval Road and Balcones Woods Drive; the southbound right lane of US 183 between Duval and West Braker Lane; and

  • the U-turn lane on the US 183 southbound frontage road at Pecan Park Boulevard on June 21-23 from 9 p.m.-5 a.m.

The 183 North Mobility Project is designed to relieve traffic congestion along 9 miles of US 183 from MoPac to SH 45 N. The project will construct two tolled express lanes running north and south. Also, an added nontolled lane will be constructed in each direction, bringing the total number of nontolled lanes to four in each direction, according to information posted on the Mobility Authority website.

Great Hills Constructors is due to begin the four-year project in early 2022, according to the Mobility Authority. Survey crews also were out along US 183 the first week of June.