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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SECTIONFIVE

funding Options

Figure 5.1
Compllr-ison of ProjN:red Funding to Low. 'lediulIl. and Full~ Funded Options

560.000.000

..,

550.000.000 .
540 000 000'" .
.. /'
530.000,000
$20.000.000
510,000,000
50

Low

Medium

Fully Funded Current _
Projected
Through 2008

Please note thai the C\VCB be lines that performing site spccific (11,-1\:11) mapping w'irhin
some counties should take precedence onr count~ywidc connrsion mapping in )on- priority
counties. This is true specifically when comparing areas where- new growth and development is
occurring to counties with low populations and 10\\/ population growth that may also face 1mI,'
flood hazard risk.

The funding levels listed above were analyzed using the unit costs provided in Appendix 0 and a
log nonnal distribution to ddenninc the 80% confidence interval for planning: purposes. As this
distribution was applied to the total yearly estimates for all of the tasks listed above. all
references in this document to cost estimates per year or tor the entire 5.year program are based
upon this 80~''O confidence imerval (to account fi)r uncertalllty in the unit cost estimates for
mapping and hydrologic.lhydraulic investigations). The pro-lonna's prcst'nted in Appendix A
can be referenced for more specific information.

5.2 PRO-FORMA

Once the funding levels ah\we were defined, cost estimates \vere generated for years 2004-2008
for specilic project activities through the use of a "pro-fonnau. A pro-fomm is defined as a
financial projection of expected costs and revenues for a business for a given financial period.
The pro-fonnas below lisl project cakgories and project activities by .year. For each projeet
activity a low, medium, and fully funded cost is estimated based upon the definitions provided
above. These project activities are then totaled tor each project category, which arc then
summed to detcnnine the tatallo\\'. medium. and fully funded cost estmlate for each year.

A probability distribution is then applied to these yearly. totals to determine the 15%.65%.80%,
and 95% confidence inter,als. as mentioned in the section abtwe. This probably distribution was
applied 10 the computed cost estimates mainly to address some of the uncertainly inherent in a
large-scale planning effort. where cost estimates from a small sample of data are applied to a
large number of individual projects. The 80% confidence interval is used i()[ planning estimates

Colorado Busint'~~ Ca~(' Plan - .\larch 2(JO~

5-3