Major Activity

Construction Progress Report Ongoing Closures

The 183 North Mobility Project is nearing completion. We've already reached several key milestones in the project, such as adding a fourth non-tolled general purpose lane in the northbound and southbound directions of US 183 in areas where there had previously only been three lanes, completed in August 2024. In addition, early 2026 saw the phased opening of the 183 Express Lanes both northbound and southbound, including the connection between the new express lanes and MoPac through a direct-connector (DC) structure and the collector-distributor road that exits from the DC and serves as a signal bypass along the southbound MoPac frontage roads.

But there is still some work to be done as we put the finishing touches on the 183 North Mobility Project over the remaining months of 2026.

Read more below (this schedule and the activity details are subject to change based on weather or other logistical factors):

Frontage Roads and Roadside Features:Conventional work along the frontage roads, including grading, landscaping, and sound wall construction, will continue over spring 2026.
Next Generation Grinding Operations: Final next-generation concrete surface grinding operations are scheduled to take place throughout the spring along all US 183 mainlanes. In order to keep the traveling public moving during peak-traffic periods, this work will require multiple nighttime lane closures, beginning at 8 p.m. (schedule subject to change) including triple lane closures at times to allow six grinding machines to operate efficiently. Though we do our best to minimize construction noise wherever feasible, these grinding activities are expected to be noisy, but will be transient in nature to any one specific area. Crews will work to move out of each segment as quickly and safely as possible. Several activities will occur concurrently, including installation of final pavement markings. Once complete, the final surface will provide clean pavement with clear lane delineation.
MoPac Milling and Paving Operations: As a part of the final phase of construction of the 183 North Mobility Project, crews will be performing roadway surface milling and paving along northbound and southbound MoPac between RM 2222 and the US 183 interchange. To accomplish this work and avoid impacts to the traveling public as much as is feasible, crews will be working through nightly lane closures involving multiple lanes at a time, that are scheduled to begin at 8 p.m. and will take place Sunday through Thursday nights (5 weekly night shifts), expected to continue through the month of May (schedule subject to change).
Asphalt Work: Asphalt paving on MoPac and the US 183 frontage roads is planned to begin in late spring 2026 . These activities represent the final major operations and are expected to last several months.
Sidewalk Work: Sidewalk construction continues along MoPac, as well as in select areas along US 183 with crews working as quickly as possible to make the network of sidewalks along the US 183 frontage roads connected and ADA-compliant.

Quarterly Construction Progress Report

Q1 2026

The 183 North Mobility Project team puts together a comprehensive breakdown of our Quarterly Construction Progress Report.* We are pleased to share the details with you:

Quarterly construction progress report for Q1 2026.

Ongoing Closures

Northbound

US 183 Frontage Road Closures:

Left lane north of Loop 360 closed to the U-Turn. The northbound to southbound U-Turn is also closed.
Left turn lane south of Great Hills Trl. Both left turn lanes open up past the U-turn.
Left lane from Great Hills Trl. to Braker Ln.
Left turn lane south of Balcones Woods Dr. The northbound to southbound U-Turn is also closed.
Left lane from Balcones Woods Dr. to Duval Rd. exit ramp.
Left turn lane south of Duval Rd.
Right Lane from Duval Rd. to Oak Knoll Dr. exit ramp.
Right lane from Duval Rd. to Oak Knoll Dr. exit ramp.
Left lane from Oak Knoll Dr. Exit ramp to on ramp just south of Oak Knoll Dr.
Left lane from Duval Rd. entrance ramp to Oak Knoll Dr.
Left turn lanes both leading into U-Turn at Oak Knoll U-turn closed. The northbound to southbound U-Turn is also closed.
Left lane from Oak Knoll Dr. to the next entrance ramp.
Left lane from Pond Springs Rd. to Anderson Mill Rd. exit ramp.
Left lane from Anderson Mill to Lake Creek exit ramp.
Left lane from just south of Lake Creek Pkwy. to the U-Turn.
Left Lane from Pecan Park Blvd. to eastbound RM 620.

MoPac Frontage Road Closures:

Left lane north of Steck Ave.

Southbound

US 183 Frontage Road Closures:

Left lane from RM 620 to Pecan Park Blvd. The U-Turn at Pecan Park Blvd. is also closed
Left lane just south of Pecan Park Blvd. to Lake Creek Pkwy. exit ramp.
Left lane south of Lake Creek Pkwy. to Anderson Mill Rd.
Left lane from Fathom Cir. to Pond Springs Rd.
Left lane from Spicewood Springs Rd. to Oak Knoll Dr. The southbound to northbound U-Turn at Oak Knoll Dr. is also closed.
Left lane from Oak Knoll Dr. to the Duval Rd. exit ramp.
Left lane from Duval Rd. to Balcones Woods Dr. The southbound to northbound U-Turn at Balcones Woods Dr. is also closed.
Left lane from Balcones Woods Dr. to the Braker Ln. exit ramp
Left turn lane from the Braker Ln. exit ramp to Braker Ln.
Right lane from the Braker Ln. on ramp to Great Hills Trl.
Left lane south of Loop 360