FLOOD00629

• Designation Number: 475
• County: Clear Creek
• Community: Unincorporated Clear Creek County
• Title: Flood Insurance Rate Map - Clear Creek County, Colorado, Unincorporated Areas and FlR, Clear Creek County, Colorado
• Date: 3/1/1980
• Designation Date: 11/1/1998
• Floodplain - Doc Type: Correspondence

LOCAL REOUEST FOR DESIGNATION

WHEREAS, Clear Creek County, Colorado has requested the Colorado Water
Conservation Board, by letter dated October 13, 1998, to designate and approve the floodplain
information contained in said Flood Insurance Rate Maps dated March 1980 with included
Floodplain Information Report dated November 1998; and

WHEREAS, Clear Creek County is aware that new floodplain information is currently
being produced by the V,S. Army Corps of Engineers, Omaha District, under contract with the
Federal Emergency Management Agency, for certain stream reaches within Clear Creek County;
and

WHEREAS, Clear Creek County has not requested the Colorado Water Conservation
Board to rescind any of the approximate floodplain information contained on said maps dated
March 1980 until such time that new detailed floodplain information supersedes the existing
approximate floodplain information; and

C.R.S AUTHORITY

WHEREAS, Section 37-60-106(1)(c), Colorado Revised Statutes, requires the Colorado
Water Conservation Board to assist in the prevention of floods and flood damages therefrom; and

WHEREAS, Sections 31-23-301 and 30-28-111, Colorado Revised Statutes, provide that
legislative bodies of local jurisdictions may provide zoning regulations for land uses on or along
any storm or floodwater runoff channel or basin only after designation and approval by the
Colorado Water Conservation Board; and

WHEREAS, Section 37-60-106(1)(c), Colorado Revised Statutes, directs the Colorado
Water Conservation Board to designate and approve storm or floodwater runoff channels or basins
and to make such designations available to legislative bodies of local jurisdictions; and

COMPLIANCE WITH CWCR TECHNICAL STANDARDS

WHEREAS, the hydrology information for the approximate floodplains for certain streams
on said maps dated March 1980 have been determined, or can be estimated, using the information
contained within included Floodplain Information Report dated November 1998; and

WHEREAS, a procedure for determining hydrology information in Clear Creek County for
approximate floodplains of streams with drainage areas that fall outside the applicable range of the
methodology presented in the included Floodplain Information Report and for lakes, ponds, local
storm drainage areas, and overflows from irrigation ditches and canals has not been established, and
those floodplain areas may not be designated as approximate floodplain information without a
procedure for estimating 100-year hydrology, and therefore the local government should require

3