North 83rd Street Flood Recovery - Permanent Construction

North 83rd Street over the Little Thompson River was destroyed during the 2013 flood event. Temporary culverts and a road were built post-flood. These structures will be replaced with a new bridge in 2016. Boulder County is working with FEMA on the project. 

The project will construct a new 250' long by 38' wide bridge that will withstand a 100-year flood event. The previous bridge that was washed out was 64' long by 28' wide and was rated to withstand a 10-year flood event. The county has been working with FEMA to ensure reimbursement for a majority of the project's final cost.   


Construction of the new bridge over the Little Thompson is ongoing, but the road/bridge is open to the public. The traveling public may still experience short delays if equipment is in the roadway. 
  • Project Contact - Andrew Barth, Transportation Public Information Officer, 303-441-1032 or email

Previous Meetings & Materials:

Project Contacts:

If you'd like to comment on this project or ask a question, use the online comment form or email or call either of the contacts below.

North 83rd Street Flood Damages and Temporary Repairs

North 83rd Street Post Flood

Temporary culvert and roadway constructed post flood (below)

North 83rd Street Post Flood