SUBJECT:
Title
A Resolution of the Town Council of the Town of Erie Approving a Construction Contract with Territory Unlimited, Inc. for the Erie Commons Irrigation Pond Improvements
Body
DEPARTMENT: Public Works
Department
PRESENTER(S): Todd Fessenden, Utilities Director
Zachary Ahinga, Civil Engineer
First Name Last Name, Title
FISCAL SUMMARY:
Cost as Recommended: $353,909
Balance Available: $354,000 (pending 3rd Supplemental Budget
approval)
Budget Line Item Number: 500-75-110-605000-100440
New Appropriation Required: No
POLICY ISSUES:
None.
STAFF RECOMMENDATION:
Recommendation
Approve the Resolution authorizing the construction contract with Territory Unlimited, Inc.
End
SUMMARY AND BACKGROUND OF SUBJECT MATTER:
The Erie Commons Irrigation Pond (Pond) and pumping facility is used to store and deliver irrigation water to meet the Town's irrigation water obligations. The Pond is located east of the Erie Commons subdivision and adjacent to Coal Creek. The Pond has a history of needing embankment repairs which included:
* September 2013 Flooding - Severely damaged the north and south banks which were repaired in 2013.
* Spring 2017 - Repairs performed to install soil riprap across the entire north bank of the Pond and grouted boulders adjacent to an existing sheet pile cut off wall where the Pond is designed to overtop.
* Fall 2023 - Further north bank erosion observed due to high Coal Creek flows and over-flowing of the Pond due to storm events.
* In early 2024 - Repairs included replacement of failing grouted boulders and extending the grouted boulder protection to the northeast side of the Pond.
In May 2023, staff retained infrastructure consultant RESPEC to evaluate prior Pond bank erosion and protection failures; and prepare construction plans and specifications to construct a remediation plan that will ensure the Pond's long-term operational reliability...
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