Restoration work will be conducted along the St. Vrain Creek located south of SH-66 between Union Road and N. 63rd Street. This section near the old “Breach 2” from the 2013 floods is known as Reach 3 Phase 2 or Phase II.
Phase 2 will create a resilient stream ecosystem and improve aquatic and riparian habitat, while protecting infrastructure by providing flood resiliency. Zak Dirt, with subcontractor Western States Reclamation, will be performing the work.
Outreach to ditch stakeholders started in December 2018. Boulder County bid out the design project in March 2019, and the design team started work in June 2019. The design team includes Otak, Ecos, Michael Baker International, Wright Water Engineers, and King Surveyors.
Funding is provided by the U.S. Department of Housing and Urban Development’s Community Development Block Grant Disaster Recovery Program (HUD CDBG-DR) administered by the Colorado Department of Local Affairs and the Boulder County Collaborative.
Phase I construction was completed in May 2018.
The project includes engineering design, permitting, and construction of the following restoration components:
- A low-maintenance bypass structure that will divert decreed water rights and sustainably direct high-energy flows and sediment away from the headgates, provide fish passage, tie into previous work, and improve ecological services in the project area.
- Modifications to the remnant Baker and Weese ditch that will protect adjacent infrastructure repaired since the 2013 flood.