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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SECTIINTWO

Program Vision

that year. The program for carrying out individual studies assigns engineering and cartographic
resources to the counties selected in the prioritization process. In 2003 the CWCB selected two
engineering consultant teams with flood map production experience to perform individual map
updates during the first two fiscal years of the Map Modernization Program. Evaluation of those
contracts will take place in late 2004 and the State's Purchasing Division may require re-
advertisement and selection of engineering consultants for studies beyond those two years. The
CWCB is currently performing map updates in Douglas and Boulder Counties based on local
Geographic Information System (GIS) data. Similarly, the UDFCD has performed a study in the
City and County of Broomfield utilizing local GIS data and is currently completing studies in the
City and County of Denver and in Douglas County utilizing local data. These studies are being
produced as countywide Digital Flood Insurance Rate Maps according to FEMA's guidelines
and specifications, and are all being performed in the vertical datum of NA VD 88, horizontal
datum ofNAD 83, and Universe Transverse Mercator (UTM) coordinates. It is the CWCB's and
UDFCD's intention to perform all studies in this datum and projection so that future efforts to
distribute and use the data will be as seamless as possible. It is acknowledged, however, that
local data may dictate the use of alternate horizontal or vertical datum, and those issues will be
addressed as they arise.

The CWCB will evaluate Colorado's map maintenance and flood hazard update needs on a
yearly basis to ensure that the flood hazard data produced remains as accurate as possible given
available funding and other resources. Below is the annual program schedule for achieving the
aforementioned objectives. The schedule assumes an estimated starting month of June. Actual
implementation of that annual schedule in any particular year will vary based on the approval of
FEMA funding to the State. This schedule will be fluid. While planning will begin each June,
scoping, contracting, and actual mapping will be "initiated" on the date that FEMA Map
Modernization funding is allocated to the State. A Gantt chart is included below in Figure 2.1 to
visually depict how the bullets listed below correspond to the CWCB's fiscal year (July 1st -
June 30th).

. June through August - Perform Initial Coordination Meetings in all counties anticipated
for study in the next FY.

. September through November - Compute cost estimates for counties that had an Initial
Coordination Meeting for the next FY and submit cost estimates to FEMA.

. December - Reevaluate statewide needs based upon the results of Initial Coordination
Meetings, annual needs assessment, and feedback from FEMA.

. January through March - Update scoping tool(s), prioritization parameters,
prioritization list, and Business Case Plan based upon findings from Initial Coordination
Meetings and needs assessment. Revise cost estimating tool(s) for studies based upon
any new or revised unit cost data. Prepare to use revised tools and information for
developing a map revision plan for the next year.

. March - Receive funding notification from FEMA and select areas (counties) for flood
mapping studies for the current Federal Fiscal Year (FY).

. April through May - Conduct Scoping Meetings for each selected county for the current
FY and finalize Scopes of Work.

Colorado Business Case Plan - March 2004

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