Road Bond
Williamson County, Texas


Williamson County Road Bond News

TxDOT Opens FM 3406 Bridge - Monday, June 25, 2018

On Monday, June 25, at 5 a.m., crews opened the newly reconstructed FM 3406 (Old Settlers Blvd.) bridge over I-35 in Round Rock to east and westbound traffic, two months ahead of schedule. The bridge has been upgraded to include two through lanes and a dedicated left-turn lane in each direction.

The project also includes the addition of two new U-turn bridges. To open the U-turn bridges, frontage roads will need to be raised and reconfigured. Please be aware of temporary lane reductions on the north and southbound I-35 frontage roads at FM 3406, so crews can safely perform this work. This work will be completed over the next several weeks, weather permitting.

Night Time Lane Closures on Eastbound RM 620 - Monday, June 25, 2018

Williamson County’s contractor, Cox Commercial Construction, is scheduled to close the eastbound lanes on RM 620 from Wyoming Springs to Deep Wood between the hours of 8 p.m. and 5 a.m. on Sunday night, June 24, Monday night, June 25, and Tuesday night, June 26. The contractor will be milling or placing hot mix during the single lane closures. Work is weather permitting. Police Officers will be on hand to manage any unexpected traffic issues. We apologize for any inconvenience this causes our residents. 

Temporary Lane Closures on O'Connor Drive North of RM 620 - Tuesday, May 22, 2018

The County’s contractor, Cox Commercial, has begun to perform preliminary work for the median revisions on O’Connor Drive near RM 620.  Work requiring temporary lane closures of the inside lanes between 9 a.m. to 4 p.m. are scheduled to begin May 29.  The project should last approximately 16 days. We apologize for any inconvenience this causes our residents. For more information on this project, click here. 

Williamson County Proposed Corridor Studies - Friday, June 2, 2017

Williamson County is studying corridors to enhance mobility in the County. Information on the corridor projects and open houses can be found at