Ranch-to-Market Road 620 runs 23.2 miles from SH 71 in Bee Cave, Travis County to I-35 in Round Rock, Williamson County. The road has major intersections with SH 71, RM 2222, US 183, FM 734, SH 45 North, and I-35.

RM 620 provides primary access to the southern Lake Travis area of Travis County and the southernmost tip of Williamson County. Through most of its length, RM 620 functions as both a local thoroughfare and commuter highway. In many cases, it is the sole access to subdivisions, businesses and schools. It is also the primary access route to Lake Travis area recreation amenities.

Proposed Improvements

  • RM 620 Feasibility Study from US 71 West to US 183
  • RM 620/RM 2222 Bypass Project
  • RM 620 South from SH 71 to Hudson Bend Road
  • Reconstruct RM 620 from east of Wyoming Springs Drive to Deep Wood Drive from a four-lane roadway to a six-lane divided roadway with median and turn lanes.
  • Repave and restripe RM 620 from west of Cornerwood Drive to east of Wyoming Springs Drive from a four-lane to a six-lane divided roadway.
  • Perform operational improvements from north of Lohmans Crossing to Ladera Boulevard.
  • Install a traffic signal at Steiner Ranch Boulevard.
  • Add auxiliary lane to northbound RM 620 from Steiner Ranch Boulevard to the future connector road to RM 2222.
  • Construct railroad grade separation structure on RM 620 from Deep Wood Drive to I-35.  

For more information on the proposed improvements select a specific road section on the map above.


TxDOT Public Engagement Officer
P.O. Box 15426
Austin, TX 78761-5426
(512) 832-7107