15 ‎(2)‎

• Board Meeting Date: 11/18/2007
• Description: CF Section - Changes to Existing Non-Reimbursable Projects - City of Florence - Oak Creek Reservoir Feasibility Study
• Board Meetings - Doc Type: Memo

STATE OF COLORADO
Colorado Water Conservation Board
Department of Natural Resources
1313 Sherman Street, Room 721
Denver, Colorado 80203
Phone: [phone]
Fax: [phone]
wuu-. c~vcb. state. co. us
TO: Colorado Water Conservation Board Members
FROM: Kirk Russell, PE
Mike Serlet, PE, Chief
Water Supply Planning & Finance Section
DATE: November 6, 2007
SUBJECT: Agenda Item 15, November 14-15, 2007 Board Meeting
Water Supply Planning & Finance Section
Changes to Existing Non-Reimbursable Projects
City of Florence -Oak Creek Reservoir Feasibility Study
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Bill Ritter, Jr.
Governor
Harris D. Sherman
DNR Executive Director
Dan McAuliffe
Acting CWCB Director
Introduction
The City of Florence has requested that the CWCB consider a change to the scope of work described
in Florence's Non-Reimbursable Project Investment application, identified as the Oak Creek
Reservoir Feasibility. The Project was appropriated in Senate Bill OS-084 Section 15 for $167,000
and was intended to assist the City with the cost of a flood control feasibility study performed by the
U.S. Army Corps of Engineers (COE). The results from a geotechnical investigation at the reservoir
site indicate that a reservoir is not feasible. The City is requesting consideration by the CWCB to
allow the City to continue to utilize CWCB funding for a feasibility study for flood control in the
absence of a reservoir alternative.
Background
In 2004, the City of Florence entered into a contract with the COE to prepare a Feasibility Study of
flood control improvements on Oak Creek. This COE/City contract requires the City to provide a
cost share of 50% of the study cost (approximately $448,000). The study is needed due to the severe
flooding from Oak Creek, which is tributary to the Arkansas River within the City limits. The Oak
Creek floodplain inundates several properties in the City requiring many landowners in west
Florence to maintain flood insurance.
In August, 2004, the Town requested and received approval of a $167,000 Non-Reimbursable
Project Investment Grant from the CWCB to help offset the cost of the COE Feasibility Study
(SBOS-084). In addition, this grant was to add an evaluation of a water supply storage component to
the COE's flood control dam alternative. The CWCB contribution to the Feasibility Study cost is
20%. The City's portion of the cost is 30% and the COE is contributing 50%.
Water Supply Protection • Flood Protection • Stream & Lake Protection • Water Supply Planning & Finance
Water Conservation & Drought Planning • Intrastate Water Management & Development