Old St. Vrain Road & Bridge Flood Recovery Project

Old St. Vrain Road & Bridge Flood Recovery Project


  • Bridge destroyed on Old South St. Vrain Road during September 2013 flood


The new bridge is open!

The construction project consisted of the creation of a 180-foot long steel truss bridge with a concrete and asphalt bridge deck. The bridge that washed away during the September 2013 flood event was a 73-foot long concrete structure that was built in 1960. The new bridge is rated to withstand future 100-year flood events. The bridge/road project cost approximately $2.26 million to construct and is eligible for federal reimbursement. JUB Engineers assisted with project design and construction consultation and SEMA Construction, Inc. completed the work

During the September 2013 flood event, Old St. Vrain Road was damaged and the bridge over South St. Vrain Creek was completely destroyed.

Construction began on the new bridge in September 2017. The road reopened in May 2018.

Plan Sets:

Previous Meetings:

March 16, 2016 – Presentation of preliminary plans (30% design phase) for the new bridge and roadway repairs. The engineering team will use the feedback gathered to refine the designs.

Project Contacts:

  • Andrew Barth – Public Works Communications – 303-441-1032 or email
  • Kristine Obendorf – Project Engineer – 303-682-6774 or email

Contact Us

Public Works Department (formerly Transportation)

Submit a request


2525 13th Street
Boulder, CO 80304

Map & Directions

Hours: 8 a.m. - 4:30 p.m. M-F

Mailing Address

P.O. Box 471
Boulder, CO 80306