FLOOD04440

• County: Statewide
• Community: All
• Stream Name: All
• Basin: Statewide
• Title: Colorado Flood Map Modernization Business Case Plan - March 2004
• Date: 3/1/2004
• Prepared For: FEMA
• Prepared By: CWCB
• Floodplain - Doc Type: Floodplain Report/Masterplan

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SECTIONTHREE

Program Plan

or site. That early analysis will make the scoping and contracting process with engineering
consultants more efficient, and it will provide accurate information to FEMA regarding
anticipated work for the upcoming fiscal year, greatly enhancing the ability of CWCB and
FEMA to estimate study costs. Additional information that will be distributed to communities
before and at the meeting, as well as examples of some of the tools to be used at these meetings,
are included in Appendix B.

3.1.3 Scoping Meetings

Once individual counties have been identified and agreed upon by CWCB and FEMA (and, as
appropriate, by UDFCD), detailed Scoping Meetings need to be conducted in order to:

. Ensure significant community involvement in the map revision process;

. Acquire and assess the completeness and quality of available data to be used in the
restudy or remapping, including site-specific engineering analyses;

. Determine the need for additional data to ensure final products of high quality and
geographic comprehensiveness;

. Clearly identify the scope of the project so that the needs and concerns of all parties are
addressed and a contract can be completed with the consultant; and

. Estimate the cost of the work that needs to be done.

Scoping Meetings will be conducted within the framework and guidelines on scoping
documented in FEMA's scoping document titled "Guidance for Scoping Flood Mapping
Projects". Scoping Meetings will be conducted in coordination with and with the support of
FEMA Regional personnel to support FEMA's objectives of building and maintaining mutually
beneficial partnerships and expanding and better informing the user community. The CWCB
believes that early and active participation in meetings with the communities impacted by these
map updates will create buy-in at the local level, which will directly result in a mutually
beneficial cooperative relationship. For many years CWCB has wanted an opportunity to
improve such partnerships, particularly with local governments in Colorado. It has been clear
just in conducting Early Implementation Success studies in the City and County of Denver and in
Douglas County, as part of FY' 03 efforts, that the greatly enhanced partnerships with local
officials have paid major dividends in return for the extra effort entailed. Additional
information that will be distributed to communities before and at the meeting, as well as
examples of some ofthe tools to be used at these meetings, are included in Appendix C.

3.1.4 Perform Hydrologic and Hydraulic Studies and Mapping

In accordance with the existing CTP partnership with FEMA, the CWCB is currently undergoing
an effort to update FEMA's paper inventory of FIRMs to DFIRMs. Updating a manual, or
paper, FIRM to a DFIRM provides communities with a more accessible floodplain management
tool than was previously available, and often provides improved flood hazard data for floodplain
management purposes. However, there are instances where funding is limited for the study
scope or where conditions change once the DFIRM is completed. In these instances an adequate
plan for maintenance and updating of planimetric, hydrologic, and hydraulic information (with
adequate funding) must be in place to ensure that underlying planimetric data and the hydrologic

Colorado Business Case Plan - March 2004

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