The Boulder County Land Use Code regulates development in unincorporated Boulder County, and Article 4-400 of the Code contains regulations specific to the Floodplain Overlay Zoning District. Boulder County adopted comprehensive text amendments to the floodplain regulations in 2016. In June 2017, the county adopted the first of two phases of comprehensive zoning map amendments to the Floodplain Overlay Zoning District based on new floodplain mapping developed in conjunction with the State of Colorado Hazard Mapping Program (CHAMP). Effective August 2018, the county adopted comprehensive zoning map amendments to the Floodplain Overlay Zoning District based on the second phase of new floodplain mapping developed in conjunction with the State of Colorado. This webpage provides details on the nature and scope of the changes.
What is happening in 2018?
Updates to the Boulder County Floodplain Overlay Zoning District have been adopted for waterways throughout unincorporated Boulder County that were most affected by the 2013 flood. These maps include revised or new regulatory flood risk zones and help to identify risk for property owners and enable proactive measure to protect people and property. More background on the goals for this new mapping can be found on the Land Use Docket webpage.
Draft floodplain maps from Phase II of the Colorado Hazard Mapping Program (CHAMP) study went through detailed reviews and public outreach before being taken to the Board of County Commissioners (BOCC) for local adoption as best available information in a regulatory update to the Floodplain Overlay District. View a list of impacted reaches.
Public Hearing Process and Information
The local adoption of CHAMP draft floodplain mapping has been completed. Details about future outreach will be available on the Floodplain Remapping Project home page. Check back regularly for updates or register your email on the project listserv to be notified of updates.
Public outreach was conducted from January to July 2018 and input provided by community members during this time helped to refine the Phase II draft mapping. Comments submitted by the public was reviewed by the CHAMP team and responses were provided to technical questions/concerns. These public comments and responses will be available on the Land Use docket webpage via the Staff Report for docket Z-17-0002.