C150050 contract docs

• Contract/PO #: C150050
• Contractor Name: Mesa County Board of County Commissioners
• Contract Type: Grant
• Loan Projects - Doc Type: Contract Documents

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reach-by-reach basis.
e. A summary of preliminary data obta.ined from COUNTY, LOCAL
SPONSORS, and others.
£ Acknowledgment of preliminary storm drainage criteria, data, and other
information obtained from COLTNTY, LOCAL SPONSORS, U.S. Aimy
Corps of Engineers, U.S. Geological Survey, Natural Resources
Conservation Service Colorado Department of Natural Resources
(CWCB, State Engineer and others), Colorado Department of
Transportation, Colorado Water Quality Control Division, BUREC,
Canal operators, utility companies, railroads, and others.
g. Summary of findings.
h. Pertinent charts graphs and material utilized.
i. A brief explanaxion of the benefit-cost analysis, including life and interest
rates used. Explain which indirect and/or intangible benefits were
considered and how dollar values were assigned. Also, apart from the
report furnished to COLTNTY, one (1) copy of the cost-benefit calculation.
These calculations shall be in tabular form, clear, legible and identified by
the reach on the stream. The tabulations, as a minimum, shall contain the
amounts of damages and reduction in damages to residences, commerc: �.i
buildings, roads, schools, utilities, and other development classifications
as appropriate, and will also identify the amounts allocated to tangible and
intangible d and for the damages to the contents of structures. A
brief written explanation of the calculations may be required by
COLTNTY if they are not self-explanatory.
j. A list and discussion of problem azeas as disclosed by hydrological and
hvdraulic calculations for each flood retum frequency.
k. A summary of costs associated with the best alternate plans by reaches
and divided into 1) drainage improvement costs; 2) street crossing costs;
3) utility relocations; 4) right-of-way costs; 5) contingency costs; and 6)
present worth of maintenance and other annual costs. Include
representative present day unit costs and percentage of contingencies
utilized.
l. A brief explanation of the soil and rationale for recommendations relative
to special needs, if any, for trea.hnent of channel side slopes, channel base,