PRESENTER: Presenter
Scott McClelland, Assistant Transportation and Capital Improvements Director
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SUBJECT: Title
Discuss and consider approval of a contract with Dalrymple Gravel & Contracting Company for the construction of the Landa Lake Dam & Spillway Improvements and authorization for the City Manager to execute change orders up to the construction contingency amount.
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DEPARTMENT: Transportation and Capital Improvements
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COUNCIL DISTRICTS IMPACTED: 3
BACKGROUND INFORMATION:
The New Braunfels Economic Development Corporation (NBEDC) has worked to develop a list of capital projects to support through engineering and design and/or construction funding since the summer of 2022. The NBEDC voted unanimously to approve funding the final design of the Landa Lake Dam project at its March 9, 2023, meeting. Freese and Nichols, Inc. (FNI) was selected as the design consultant.
Repairing the dam will improve the global stability of the structure to meet the TCEQ dam safety regulations. The construction of the improvements will add a concrete toe to the existing dam and address erosion in the overflow channel to improve the stability and maintenance of the channel.
The NBEDC unanimously approved $1,000,000 for the construction of the proposed improvements and other construction phase expenses at its April 18, 2024, meeting.
The City issued a competitive sealed proposal for construction on July 30, 2024, and received four proposals on September 10, 2024. The project team selected Dalrymple Gravel and Contracting as the best value, with a total cost of $712,500. Staff recommends including a 10% owner contingency for a total construction cost of $783,750.
ISSUE:
The Landa Lake Dam does not meet the TCEQ dam safety regulations. The proposed improvements will improve the dam’s stability to meet these regulations.
STRATEGIC PLAN REFERENCE:
☐Economic Mobility ☐Enhanced Connectivity ☐Community Identity
☐Organizational Excellence ☒Community Well-Being ☐N/A
The proposed improvements to the Landa Lake Dam & Spillway will add to the Community’s Well-Being by ensuring longevity and improving the stability of the dam itself, keeping Landa Park safe by decreasing the likelihood of a dam failure.
FISCAL IMPACT:
The NBEDC has approved $1,000,000 for construction phase expenses. Therefore, there are adequate funds for this project expenditure.
Recommendation
RECOMMENDATION:
Approval of a contract with Dalrymple Gravel & Contracting for the construction of the Landa Lake Dam & Spillway Improvements and authorization for the City Manager to execute change orders and additional expenditures up to the construction contingency amount.