DATE: October 21, 2015
TO: Board of Mayor and Aldermen
FROM: Eric Stuckey, City Administrator
David Parker, City Engineer/CIP Executive
Paul Holzen, Director of Engineering
Jeff Willoughby, Stormwater Coordinator
SUBJECT:
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Consideration of a Professional Services Agreement (COF Contract 2015-0356) with Civil & Environmental Consultants, Inc. for a Feasibility Study for Stream Bank Stabilization at Liberty Hills and Royal Oaks Subdivisions for an amount not to exceed $68,700 (10/29/15 CIC 4-0)
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Purpose
The purpose of this memorandum is a request to move forward with a feasibility study to determine potential ways to address flooding and erosional impacts in the Liberty Hills and Royal Oaks Subdivision along Ralston Creek.
Background
Over the last year the City has received numerous complaints from residents from both the Liberty Hills Subdivision and Royal Oaks Subdivisions regarding flooding and property loss due to stream bank erosional issues along Ralston Creek. The stream originates between Huffines Ridge Drive and I-65
near Centennial High School and flows in a southwesterly direction before entering into the Liberty Hills Subdivision Retention Pond. It also receives flow from an eastern channel along Liberty Pike which is listed as the headwater area for Ralston Creek. After leaving the retention pond through its outlet structure, the stream flows through the Royal Oaks Subdivision, where the previously mentioned flooding and bank failures have occurred.
Financial Impact
$68,700 - ($100,000 under Engineering Services 82540 was budgeted as part of the FY2015-2016 budget). The Board is also considering a contract with CDM Smith in the amount of $68,500 for the Drainage System Evaluation of Jordan Branch. Approval of this contract will require a budget amendment in the amount of $37,200 ($68,500+$68,700-$100,000 = $37,200).
Recommendation
City Staff Recommends approval of COF Contract 2015-0356
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