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C. Estimated Expendituns CASH NON-CASH (In-Kind Match) $ Engineering Legal! Admin Land Acquisition (f,:e simple) Construction Contingency (based upon limited preliminary design prior to acquiring detailed mapping, final design and cost estimating) $ 323,000 $ 134,000 $ 65,000 $2,340,000 $ 351,000 Cost Effectiveness The useful life of the proje<:t is assumed to be 50 years. We ha.ve determined that $1,000 per year is a reasonable estimat,e of annual maintenance. Improvements are designed for the 100- year frequency flood. This area was subjected to a. flood in 1997 that is estimated to have been approximately a 75- to 80-year flood at th,: soutllem end of the City of Sterling. Estimated damage from this flood is in excess of $10 million. The proposed project will be designed to prevent darnage from the IOO-year flood. The estimated dollar value of damage prevented by the project is as follows: 10-year -- ,...- 50-Year 100-Year 25-Yero:.___ -- Damage Before After Before After Before After Before After Direct $768,000 $35,000 $3,790,500 $70,000 $7,700,000 $391,000 $15,938,000 $628,000 Other $153,600 $ 8,750 $ 758,100 $14,000 $1,540,000 $ 78,200 $ 3,187,600 $125,600 - Justification to support the estimate is provided in the attached Section II Feasibility Study and Section V Technical Addendum, Tab A. Approximately 4,482 people will be directly protected by the proposed project. The value of property to be protected by the proposed project is approximately $118,650,000. National Flood Insurance Progranl The proposed project is located in the City of Sterling and Logan County which are participants in the NFIP. Both are in compliance with the NFlP (please ref,:r to Section IV Attachments, Tab 3 for letters of compliance). The project is in a designated FEMA floodplain (reproduced composite of the drawing may be found in the back flap pocket of this submittal). Firm Panel Numbers are: 1I-3