SUBJECT:
Title
A Resolution of the Town Council of the Town of Erie Approving a Third Amendment to the Agreement for Professional Services with HDR Engineering, Inc. for Final Design and Construction Services for the Erie Lake Dam Rehabilitation Project
Department
DEPARTMENT: Utilities
Presenter
PRESENTER(S): Bruce Chameroy, Water and Wastewater Division Manager
Weston Ring, Utilities Project Manager
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Time
TIME ESTIMATE: 0 minutes
end
For time estimate: please put 0 for Consent items.
Fiscal
FISCAL SUMMARY:
Cost as Recommended: $279,606.36
Balance Available: $1,000,000
Fund Water Fund
Line Item Number: 500-75-110-605000-257502
New Appropriation Required: Yes - $2,427,035 in 1st Supplemental Rollover
Policy
POLICY ISSUES:
Town Council must approve spending at this amount according to the Purchasing Policy and Town Charter.
Recommendation
STAFF RECOMMENDATION:
The staff recommends approving the amendment to the contract.
Body
SUMMARY/KEY POINTS
• This item is in front of Council because the change amount exceeds the contingency available in this contract.
• Although there is money available currently, we are also asking for approval of the construction contract for this project. Rollover funds are necessary to cover the entirety.
BACKGROUND OF SUBJECT MATTER:
The Colorado Dam Safety, Office of the State Engineer (SEO) performed the annual inspection for Erie Lake Dam on Sept. 26, 2022, and observed pooling water at the downstream toe of the dam, located along the southwest portion of the embankment. SEO instructed the Town to institute a daily monitoring plan and to update data on a shared file with photographs and measurements. On Sept. 27, 2022, the Town cleared vegetation from the wet area and identified the active source of seepage. The Town’s Public Works Director contacted HDR for support on evaluating the seepage issue. HDR was contracted with the Town of Erie to perform a data/records review of pertinent available documentation, perform an onsite dam examination, and deliver a technical memo of findings and recommendations.
Since then, HDR has completed the design and engineering of the Dam Rehabilitation project. HDR is requesting three amendments to their existing contract.
Amendment 3 requests funding for additional services in response to a design review by the CO Dam Safety Bureau. This will include a “riprap sizing and wave runup analysis” which was not included in the original scope. It also requests funding for additional services related to the removal of three trees identified in the design. The deliverables will include a raptor survey and wetland evaluation. Finally, Amendment 3 requests funding for construction services. These services include the construction observation plan and pre-construction meeting, construction oversight, owner’s engineer services, RFI and submittal review and response, first filing plan and support, and project management.
priorities
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attachments
ATTACHMENT(S):
1. Resolution
2. Amendment 3