TxDOT Cuts Ribbon on New Williamson County Roundabout


With the ceremonial snip of the scissors and music provided by the Round Rock High School band, the Texas Department of Transportation, Williamson County, and the City of Round Rock have marked the completion of the RM 620 Roundabout project from I-35 to Deep Wood Drive.

“Many of us remember the days of traveling down RM 620 and getting stuck at the railroad behind a train or a line of cars in traffic,” said TxDOT Austin District Engineer, “and we now have bridges over the tracks to keep traffic moving smoothly and more safely and an innovative roundabout at Chisholm Trail to move traffic more efficiently.”

This $27.4 million project added overpasses at Chisholm Trail and Lake Creek Drive and widened lanes. The traditional intersection at RM 620 and Chisolm Trail was replaced with a roundabout that was constructed underneath the overpass and around existing railroad tracks. Additionally, new frontage roads were constructed along with bicycle and pedestrian accommodations along RM 620.

“Roundabouts lead to more than a 90% reduction in fatalities, 76% reduction in injuries, 35% reduction in all crashes, and further, the slower speeds make it safer for pedestrians,” Williamson County Commissioner Terry Cook said. “The day has come to celebrate the beauty of this project, what it brings to a major transportation route in Round Rock, the sheer elegance of its design and the most welcome efficiency of its function.”

“With schools, clinics and retail shops all within a short distance, this project improves day-to-day travel and commute times for users,” added Williamson County Commissioner Valerie Covey. “Projects like this are crucial to accommodate the inevitable future growth and development in our region.”

“I’m very proud that we’ve completed a challenging project that’s been a long time in the making,” said Round Rock City Councilwoman Hilda Montgomery, “We’re happy to deliver this project and create much more effective and safer mobility for the citizens of Round Rock.”

“I’m proud to represent such local talents that can visualize a big solution and bring it forward,” added Round Rock City Councilman Frank Ortega. “Thanks to all the other agencies that made this a success and my special thank you to the City of Round Rock.”

“This project improves safety in the corridor significantly,” said Gary Hudder, transportation director for the City of Round Rock. “A great thanks to our city council for the vision, for the continued commitment and support. Thanks to Williamson County and thanks to TxDOT. It’s been a great opportunity to work together and bring this project to the community.”

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