Gregory Canyon Creek Flood Mitigation
Flood Mitigation Plan
The city's Flood Mitigation Plan for Gregory Canyon Creek includes habitat improvements, culvert and channel improvements, a pedestrian bridge at Pennsylvania Avenue, sediment traps, roadway improvements and other features. The Flood Mitigation Plan was accepted by City Council in December 2015 and is available via the links on the right side of this page. Capital improvements funds were allocated in 2018 for the design of culvert and channel improvements from Arapahoe Ave. to Pennsylvania Ave.
Latest News and Updates
The City of Boulder is moving forward with the design of flood mitigation improvements for Gregory Canyon Creek between Arapahoe Ave. and Pennsylvania Ave. The city has partnered with the Mile High Flood District (formerly known as the Urban Drainage and Flood Control District), and selected Jacobs Engineering for the preliminary design of channel and culvert improvements.
In order to perform the preliminary design, surveying work was conducted in the summer of 2019. Additional field and geotechnical (soils) investigations are being conducted in the summer and fall of 2019 which will cause some temporary impacts to on-street parking and traffic. Residents in the area will also see paint markings for underground utilities and may encounter members of the design team gathering information. We have contacted property owners along the creek corridor to request Right-of Entry for areas where the city does not have easements - thank you to everyone who has helped us with this important work! Once the surveying and field investigation work is complete, we will start setting-up meetings with property owners along the creek to discuss design preferences.
As part of the flood mitigation project, the city has purchased the property at 712 Pleasant and is planning to deconstruct the structure in the fall/winter of 2019.