Floodplain Development Permits

A floodplain development permit is required for all development in the floodplain.

Floodplain development permits:

  • must be obtained from the Transportation Department, Water Resource Specialist, before the start of construction,
  • applications should include the following information as applicable:
    • Development plan stamped by a Colorado Registered Professional including items listed in Section 4-407 of the Boulder County Floodplain Regulations
    • Location map (2000’ scale U.S.G.S. topo)
    • Valley cross-section at site
    • Construction and material specifications
    • Description of extent to which water course will be altered
    • Floodway analysis (if required)
    • Title report for Floodway Permit
    • Engineering report addressing those standards set forth in Section 4-407 of the Boulder County Floodplain Regulations.

Floodplain Development Permit Application

Floodplain Management provides more information on floodplain regulations, drainage, flood preparations, maps and requirements. To check to see if your property is within a regulatory floodplain go to Boulder County e-mapping (searchable property information).


Contact

Boulder County Transportation
303-441-3900

floodplainadmin@bouldercounty.org
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