From
Stephanie Griffin
Title
Professional Engineering Services Contract with Halff Associates, Inc. for the design and construction management of the Johnson Creek Channel Wall and Floor Repairs in the amount of $140,105.00 plus a 5% contingency of $7,005.00, for a total projected cost of $147,110
Presenter
Gabe Johnson, Director of Public Works and Stephanie Griffin, Stormwater Utility Manager/Floodplain Administrator
Recommended Action
Approve
Analysis
September and October 2018 flood events. The design capacity of the overflow channel was exceeded and the wall failed when the floodwaters overtopped it. The channel flood has multiple locations that experienced significant erosion.
Chapter 252, Section 22 of the Local Government Code allows for the exemption to competitive bidding when the expenditure is for Professional Services such as engineering services. Halff Associates, Inc was selected as the most qualified professional due to their familiarity with similar projects and their past record of performance on City projects.
Halff has provided a proposal to design the necessary repairs for the channel wall and channel floor. The scope of work includes the following tasks:
• Task A: Field Survey
• Task B: Data Collection and Project Planning
• Task C: Preliminary Design (30%)
• Task D: Preliminary Design (70%)
• Task E: Final Design (95-100%)
• Task F: Bidding Services
• Task G: Construction Phase Services
Financial Consideration
Funding for a Professional Engineering Services Contract with Halff Associates, Inc. for the design and construction management of the Johnson Creek Channel Wall and Floor Repairs in the amount of $140,105.00 plus a 5% contingency of $7,005.00, for a total projected cost of $147,110, is available is the Storm Drainage Capital Projects Fund (401592) WO #02004903 (Johnson Creek Channel Repairs)