Major Activity

New Lane, Open Early Frontage Road Activities Concrete Batch Plant Operations In Progress - Miscellaneous Work Continuous Lane Closures Upcoming Work

Over the course of construction there will be major activities that will impact the region. As those activities are scheduled, we will keep the community updated.

New Travel Lane Open on US 183 General Purpose Lanes

Just in time for back-to-school travel in fall 2024, the Central Texas Regional Mobility Authority (Mobility Authority) delivered the early opening of an additional non-tolled travel lane in both directions on the 183 North Mobility Project corridor between State Highway 45 North and Loop 1 (MoPac). This accomplishment brings the total number of non-tolled lanes to four in each direction, up from three previously and means smoother, more reliable travel for drivers as construction continues. While final lane placement will ultimately shift with full project completion in 2026, the increase in the number of non-tolled lanes on US 183 is a permanent condition.

VIDEO: New Lane, Open Early

Read the press release on the new lane on the Mobility Authority's website here.

Frontage Road Activities

Crews have been coordinating utility relocations, sidewalk reconstruction and related business driveway reconstructions along the corridor. All existing sidewalks along the frontage roads are being updated to be ADA compliant and crews will be adding sidewalks where none exist between SH 45/RM 620 and Loop 360. The utility relocations have been implemented first. Crews are done with 60 percent of sidewalk construction and 70 percent of driveway reconstruction work as of the beginning of 2025. For more information about our plan to improve the bike and pedestrian facilities along the project corridor go here.

Concrete Batch Plant Operations

The Mobility Authority conducted initial outreach to businesses near Pecan Park Boulevard and FM 620 regarding the installation and startup of a temporary concrete batch plant in 2022. Concrete from the plant is used to pave new lanes for the 183 North Mobility Project. The plant will run as long as road paving is in progress on 183 North. The project’s outreach team met with area businesses, making them aware of potential sound, dust and light issues at night and how the construction team has and will continue to mitigate those impacts.

In Progress - Miscellaneous Work

Crews have completed or are working to complete several milestones already, including, but not limited to:

Interior widening – Crews have completed the entirety of this work. This includes widening between both directions of US 183 from RM-620 to just north of MoPac.
Outside widening – Portions of outside widening along SB MoPac have also been completed between US 183 and FM-2222
Outside widening bridges – Work on outside widening bridges between Pond Springs and Great Hills Trail on both NB and SB directions of US 183 was ongoing throughout 2024, with our first new bridge widening having been poured in December 2024.
Retaining Walls – Construction of over 30 retaining walls between US 183 highway and frontage roads was ongoing throughout 2024. Six of these walls have been completed, and new roadway is being built on top of them.
Drainage – Miles of underground drainage pipe and hundreds of inlets have been installed along the frontage roads of US 183, facilitating the outside widening construction and future handling of stormwater, once the new roadway is complete.

Continuous Lane Closures

For daily lane closures, see our Travel Alerts map. All closures are subject to change based on weather and other factors.

Northbound US 183 Frontage Road:

Left lane north of Loop 360
Left turn lane south of Great Hills Trail
Left lane from Great Hills Trail to Braker Ln.
Left lane north of Braker Ln. entrance ramp
Left turn lane south of Balcones Woods
Left lane from Balcones Woods to Duval exit ramp
Left turn lane south of Duval
Left lane from Duval to Oak Knoll exit ramp
Left lane from Duval entrance ramp to Oak Knoll
Left lane from Oak Knoll to the entrance ramp
Left lane from Pond Springs to Anderson Mill exit ramp
Left lane from Anderson Mill to Lake Creek exit ramp

Southbound US 183 Frontage Road:

Left lane south of Lake Creek to Anderson Mill Rd.
Left lane from Fathom Cir. to Pond Springs
Left lane from Spicewood Springs to Oak Knoll
Left lane from Oak Knoll to the Duval exit ramp
Left lane from Oak Knoll entrance ramp to Duval
Left lane from Duval to Balcones Woods
Left lane from Balcones Woods to Braker exit ramp
Left turn lane from Braker exit ramp to Braker Ln.
Right lane from Braker to Great Hills Trail
Left lane south of Loop 360

Northbound MoPac Frontage Road:

Left lane north of Steck Ave.

Southbound MoPac Frontage Road:

Left lane north of Steck Ave.
Right lane from Steck Ave. to Westchester
Left lane south of Westchester
Left lane from Spicewood Springs to the entrance ramp

Upcoming Work

In 2025, crews are targeting several major activities, including, but not limited to:

Completion of 11 outside widening bridges between Pond Springs Rd. and Great Hills Trail
Construction of roughly 13 miles of outside widenings on NB and SB US 183 between Lake Creek Pkwy. and MoPac
Completion of the direct connector structure between the new express lanes on US 183 and the existing express lanes on MoPac

Stay informed by signing up for our Travel Alerts through the link below and following us on Twitter @183North.