Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to enter into a professional engineering services agreement with Ribway Engineering Group, Inc. for the Dublin Road Water Plant (DRWP) Misc. Improvements - Basin Clarifier Rehab. Project, in an amount up to $556,700.00, for Division of Water CIP No. 690278-100005, Contract No. 2199.
The overall project consists of engineering design and construction of improvements to the clarifier and flocculation equipment at the Dublin Road Water Plant. The existing clarifier mechanisms and flocculator drives at the plant are experiencing functionality issues, have been rehabilitated numerous times, and are now reaching the end of their useful life.
Ribway Engineering Group will provide services for a study and condition assessment (Phase 1), detailed design (Phase 2), and engineering services during construction (Phase 3).
Phase 1 (current), study and condition assessment, will evaluate the various existing clarifier drive mechanisms, corner sweep mechanisms, clarifier rake arms, and miscellaneous piping, supports, and other clarifier appurtenances in order to determine the improvements that are needed and to assess whether equipment should be repaired or replaced. The phase will conclude with a Basis of Design Technical Memorandum indicating what repair and replacement work is to be performed during construction. Phase 1 is estimated to be complete by March 2019.
FUTURE MODIFICATION(S): Future contract modifications for Phase 2 and Phase 3 were identified in the Request for Proposals (RFP).
Phase 2, detailed design work, shall be based on the Basis of Design Technical Memorandum and conclude with the delivery of the bid documents and assistance during bidding. Phase 2 is estimated to be completed March 2020.
Phase 3, engineering services during construction, will involve reviewing submittals, responding to RFIs, preparing RFPs, and other services. Construction Adminis...
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