Senior Director of Infrastructure Bob Daigh presented Williamson County Commissioners with a status update on the county’s road bond program during a June 17 meeting.
Precinct 2
The Hwy. 29 Bypass from RM 1869 to CR 279 in Liberty Hill is nearing completion, Daigh said.
- Timeline: anticipated completion late 2025
- Cost: $14.4 million
- Timeline: anticipated completion summer 2027
- Cost: $52.5 million
Crews are repaving and widening a portion of Sam Bass Road stretching from RM 1431 to Wyoming Springs Drive near Round Rock, according to the county’s website.
- Timeline: anticipated completion fall 2025
- Cost: $34.5 million
- Timeline: anticipated completion summer 2026
- Cost: $20.8 million
- Timeline: anticipated completion late 2026
- Cost: $25.9 million
Through a city of Round Rock partnership, construction is underway on an eastern extension of Old Settlers Boulevard from the intersection of North Red Bud Lane and CR 122 to CR 110, according to Daigh’s presentation.
- Timeline: anticipated completion fall 2025
- Cost: $14.9 million
- Timeline: anticipated completion late 2026
- Cost: $13.1 million
- Timeline: anticipated completion late 2026
- Cost: $20.4 million
- Timeline: anticipated completion summer 2028
- Cost: $64.2 million
No active projects are under construction in Precinct 1, but Daigh said there are “lots” of projects under design.
What they’re saying
“Williamson County is unique in that when we do projects, we partner with our cities,” Precinct 2 Commissioner Cynthia Long said. “I just want to highlight that, and just [give] a shout out and a thanks to the cities.”
Precinct 4 Commissioner Russ Boles, whose precinct has the most active road projects, said a lot of areas currently in Williamson County will one day become part of existing cities.
“It makes sense to have a regional effort,” Boles said. “The fact that we have worked regionally with our partners is going to allow that development to be a success.”
Remember this?
Segment 3 of the East WilCo Highway opened to traffic on June 21, Community Impact previously reported. The project expanded the two-lane RM 3349 and CR 101 roadways into a four-lane divided roadway with bridges over Hwy. 79 and the Union Pacific Railroad.

The bridge over Hwy. 79 is the most expensive project completed in Williamson County to date, Boles said.
Segment 3 was funded through the Williamson County 2019 Road Bond, and the Texas Department of Transportation contributed $95 million toward construction, according to a county news release.