VIEW MAPS & PROVIDE FEEDBACK
Use the links below to view the draft maps and to provide input or ask questions:
- View the Draft Maps – You can comment directly from the map site by using the “Comment” button located below the “Find address or place” search field (Data updated April 6, 2017)
- Proposed Regulatory Flood Risk Zones – Read about the data visible on the draft web map portal (link above) and learn how these maps related to the proposed revisions to the Floodplain Overlay zoning district
- Online Comment Form – Submitted forms are sent directly to the county project team
- Local Adoption of Map & Code Amendments
- Public Meeting Resources
- Project Newsletter – Issue #4 – January 2017
- Project Newsletter – Issue #3 – Fall 2016
- Project Newsletter – Issue #2 – July 2016
ABOUT THE DRAFT MAPS
The data available online via our draft map web portal is available to allow the public to be aware of and provide input on the floodplain mapping project from the beginning. Draft map data has been updated as of April 6, 2017 and remains subject to regular changes until it is approved as the new effective mapping. Concerns or questions about these changes should be addressed to the Floodplain Management Team (contact info at the bottom of this page).
The 2013 flood event caused widespread damage and changes along waterways throughout the county and other areas of the state. In response, the State of Colorado is taking steps towards bolstering long-term planning and resiliency efforts by funding the Colorado Hazard Mapping Program (CHAMP) that will update local hazard information including regulatory floodplain maps for the most affected waterways.
Boulder County is supporting this initiative because accurate floodplain maps provide detailed information for property owners on their own flood risks and enable proactive measures to protect people and property before the next significant flood event.
Work on the new floodplain maps has begun. Draft maps for the St. Vrain watershed and Phase 1 of the CHAMP study were submitted to the county in the fall of 2016. Waterways in this watersheds include:
- Cabin Creek
- North – South – Middle St. Vrain Creek(s)
- St. Vrain Creek
- Boulder Creek
- North Boulder Creek
- Middle Boulder Creek
- South Boulder Creek
- Dry Creek #2
- Two Mile Canyon Creek
- Coal Creek
- Rock Creek
- New Dry Creek Ditch
- Upper Four Mile Canyon Creek
Other area waterway floodplain maps will be released in the summer of 2017 as part of the CHAMP Phase II study. The floodplain mapping will be recommended for local adoption as it is reviewed and approved by the county. This will allow the county to base floodplain regulations on the best available data. Later, upon final FEMA approval and adoption, the floodplain mapping will become effective for both regulatory and flood insurance purposes. Read more about these components of the floodplain remapping process on the Floodplain Mapping and Code Amendments page and the National Flood Insurance (NFIP) page.
To educate and engage residents, Boulder County will provide information and updates throughout the state’s process via this website and a variety of other platforms. Use the links on the right side of this page to learn more about this effort.