Carrollton Ionwave #ENG2026-05 Addendum 1

Engineering Consulting Services for Dam Improvements in Carrollton, TX

The City of Carrollton Engineering Department is seeking qualified engineering consultants to design and implement improvements for the Woodlake Lake (Colonial House Lake) Dam and the Josey Ranch Lake Dam in Carrollton, TX. - Government Buyer: - City of Carrollton Engineering Department - Scope of Services: - Professional engineering services for dam improvements - Design and final layout of roller-compacted concrete (RCC)-covered spillways - Bathymetric survey of the lakes - Design of RCC surfaces, transitions, and erosion protection - Confirmation of spillway flood capacity - Preparation of construction drawings, technical notes, and cost estimates - Coordination with regulatory agencies, including compliance with TCEQ dam safety standards - Engineering support during construction - Unique/Notable Requirements: - Strict Statement of Qualifications (SOQ) formatting (maximum 10 pages, appendix for resumes) - Mandatory electronic submission via IonWave system - Adherence to non-contact and non-discrimination policies - Evaluation based on qualifications, with possible interviews - No specific OEMs or vendors are named, as this is a request for professional engineering services - Place of Performance: - City Hall, 1945 E. Jackson Road, Carrollton, TX 75006 (primary government facility)

Description

The City of Carrollton Engineering Department is seeking Statements of Qualifications (SOQ) from engineering consultants for the design and implementation of improvements to the Woodlake Lake (Colonial House Lake) Dam and the Josey Ranch Lake Dam. The project involves enhancements to the existing spillway structures to improve their capacity to safely convey stormwater flows and protect the dam embankments, potentially using roller-compacted concrete (RCC) and structural modifications in compliance with TCEQ dam safety standards. The selected consultant will provide professional services including final layout and elevation development, bathymetric survey, RCC design, flood capacity confirmation, erosion protection design, construction drawings, cost estimates, coordination with regulatory agencies, and engineering support during construction. Firms will be evaluated based on their SOQ responses and may be interviewed before final selection.

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