WSP05425

• File Number: 8101
• Description: Arkansas River Basin Description
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 9/1/1962
• Author: High Plains SCD
• Title: Watershed Work Plan - Limon Watershed Protection Project - Elbert and Lincoln Counties - Colorado
• Water Supply Pro - Doc Type: Report/Study

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A study was made for an alternate program with the diversion of the
flood flows from the three tributary drainages eastward through a
floodway channel into Lake Creek northeast of the Town of Limon.
This investigation indicated that to provide a degree of control
equal to the three proposed floodwater-retarding structures
would require about 75 percent more, Preliminary investigations
also determined that annual watershed yields were not sufficient
to support the incorporation of permanent storage for agricultural,
industrial, municipal, or recreational purposes.

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The main factors influencing the location of the three
reservoir sites were: (1) topographic conditions affecting the
amount of materials required in the dams in relation to the amount
of storage capacity in the reservoir area; and (2) proximity of the
sites to the area benefited.

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All three sites were located so as to obtain maximum reduction
of floodwater runoff from the highest percent of flood-source area
with the least cost.

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The works of improvement planned for installation for floodwater
protection meet the objectives of the sponsoring organizations and
the Soil Conservation Service.

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High standards of hydraulic design were used for an earthfill
structure on each of the vlest, Middle and East drainages to provide
adequate protection to the Town of Limon. the state Highway bridge,
the Rock Island Railroad bridge, agricultural floodplain lands, and
the town's sewer lagoons.

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The project plan conforms to all Federal and State Laws and
regulations and will have no known detrimental effect on any
existing downstream project.

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The High Plains Soil Conservation District will continue its
land treatment program for watershed protection and the realization
of benefits.

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The damage evaluations for present condItions are based on
conditions with the improved culvert and channel capacities which
are now in the process of completion. Damage evaluations for
with project conditions are based upon the improved channel capacities
and the three floodwater-retarding structures.

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