FLOOD03947

• County: Weld
• Community: Milliken
• Stream Name: Local Drainage
• Basin: South Platte
• Title: Floodplain Information Report
• Date: 10/1/1982
• Prepared For: Milliken
• Prepared By: Simons Li & Associates Inc.
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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VII. ECONOMIC ANALYSIS
AneconQll\lc analysts to further ev8lUllt.. th..propo....d dtee"..tlve im-
provement" to alleviate flooding along the Milliken etudy r..ach.." is based on
the ~n..tlt-coat ratio of each alternative and net beneflte.
The ooat of each alternative is based on estimates presented 1'1 the pre-
vioue chapter. The benefit. are the average annual flood damage reductions
derh,..d feo..the ...iternat!"" improvements and_re found J:>aaedon damaqe
discharge CUrves estahlished for each ~ach In Chapter V. The average annual
flood d.amage re<luetion of $deh reach'.. alternatives is virtually the eaw'l as
tbeaveraqeannual flood da.....,., for that r..ach dnc.. <tr..in..ge 1mprov&ments
were ba....d on aCCOfWdatinq the 100-year discharge. Alt,u'native 1 for each
d:raln..ge"'..Y.thenonstructur..laltern..tlv".oonsidersnOilnprov.......ntstothe
e~i"ting dr~inage systems. The oosts associated ~ith these me~suraa ara
generally not oonsidared in an aconomic analysi" &nd ~ill not be considered
forthi"..tudy.
Teble 21 presents a s~ry of the economic analysis. It "how" net bene-
fits (difference betw....n average annual floodda!u<J<!l ",..duction" and average
annual improvement co"t) and ben..fit-coat ratio for each alternative of each
reach. The costa and ratios of thosa alternatives involving street paving ara
deceptively high. The Town of Milliken i8 pr....ently oon..id..ring paving the

town's street" independent of the drainage improvements.

1f such is the

C4se,

the cost of these 31ternatlvcs in terms of drein3go ~provement8 will be
gr&atlyreduced.

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