REPORT TO CITY COUNCIL
To:Honorable Mayor and Members of the City Council
From:Jason Simpson, City Manager
Prepared by:Shannon Buckley, Assistant City Manager
Date:March 11, 2025
Subject: Award of a Public Works Construction Agreement to Endresen Development Inc. for the Library Site Retaining Wall for the New City Library (CIP Project #Z20003)
Recommendation
Approve and authorize the City Manager to execute a Public Works Construction Agreement with Endresen Development Inc. in an amount not to exceed $189,000.00 for the construction of the retaining wall for the new City Library Project in such final form as approved by the City Attorney; authorize the City Manager to execute change orders not to exceed the 10% contingency amount of $18,900.00; and authorize the City Clerk to record the Notice of Completion once work is completed.
Background
The City Library site requires a retaining wall to be built to enhance structural support for the building and support hardscape aesthetics along the property line stretch from Main St. to Spring St. The retaining wall is identified as a priority in the grading and site development sequencing and shall be completed prior to the building pad development. With the retaining wall in place during the site grading backfill and soil compaction will be efficiently and cost effective finished.
Also, once the retaining wall is in place the potential for soil erosion and water damage impacting the library's foundation and surrounding areas will be abated.
Discussion
The scope of work for this project includes the following key elements:
•Building the retaining wall from Main St. to Spring St. •Constructing the lower retaining wall with 12" blocks as per the plan. •Constructing the upper retaining wall with 8" blocks as per the plan. •Placing steel reinforcement throughout the footing and block wall •Grouting all cells to ensure stability and durability of the wall.
Library Site Retaining Wall for the New City Library (CIP Project #Z20003).
•Pumping 134 yards of concrete for the footing to provide a solid foundation. •Lowering drainage according to the civil engineering plan to prevent water accumulation and erosion.
•Applying waterproofing on the earthen side of the wall as per the civil engineering plan to protect against water infiltration.
City Staff pursued proposals from three contractors capable of performing the retaining wall construction. Each contractor was briefed on the enter scope of work and performed a thorough site visit to better assess the work requirements. Listed below are the submitted proposals for the retaining wall construction:
Company Amount
Endresen Development Inc. $ 189,000.00
Edmonson Construction Co. $ 199,950.00
Cotter Construction $ 205,500.00
The project is scheduled to commence immediately upon approval and contract execution and is expected to be completed within 45 days to minimize disruption and ensure structural integrity for the following construction effort and before the onset of adverse weather conditions. Approval of this agreement will facilitate the timely and efficient completion of the retaining wall, contributing to the safety and aesthetic appeal of the City Library premises.
Endresen Development Inc. has demonstrated expertise in similar projects, and their proposal aligns with the City's budgetary and quality requirements. At the completion of the retaining wall, the site will be ready to receive the complete site excavation and compaction to establish a building pad.
Fiscal Impact
Funding costs are included in the Fiscal Year 24/25 – 28/29 Capital Improvement Plan (CIP) budget, CIP Project #Z20003.
Attachments
Attachment 1 - Agreement
Exhibit A - Endresen Development Inc. Proposal Dated March 2, 2025