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 2019?
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 measures to protect people and property. More background on the goals for this new mapping can be found on the Land Use Docket webpage.
Boulder County anticipates that FEMA will produce Preliminary Flood Insurance Rate Maps (Preliminary FIRMs) around mid-2019. After these maps are received, county, state, and federal staff will begin local outreach to share the updated mapping with the community.
Public Outreach Process and Information
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.