Explanation
1. BACKGROUND
This ordinance authorizes the Director of Public Utilities to enter into a contract modification to start detailed engineering design services with ms consultants, inc. for the Fourth Water Plant Transmission Main project, CIP #690502-100001, in an amount up to $18,739,250.02.
This contract is for engineering consulting services for the design of water transmission mains that will be constructed in conjunction with the construction of the City’s future Fourth Water Plant on Home Road. The transmission mains will extend from the Home Road water plant located at 5992 Home Road, Delaware, OH 43015, to strategic connection points in the City’s existing water distribution system, specifically the Cleveland/Henderson pressure district. One transmission main is to be constructed by 12/31/2028, with the completion of the second main by 12/31/2030.
The majority of the transmission main will be located outside the City of Columbus. The portion within the City of Columbus will be located within the Hayden Run Planning Area (30) and the Far Northwest Planning Area (31).
The initial contract work, Phase 1, was for preliminary design services for the project. Modification #1 was to add preliminary engineering services for the new Scioto River/Griggs Reservoir crossing(s) into the Cleveland/Henderson pressure districts and associated transmission main alignment(s) to connect the Home Road Water Plant transmission mains. Modification #2 funded the performance of limited detailed design services that included Survey, Base Mapping, and Geotechnical work to keep the project on schedule. This modification is needed for the consultant to finish detailed design.
There is one additional contract modification planned. The final planned contract modification will be for Phase 3, engineering services during construction.
1.1. Updated Timeline
The duration of Phase 1 - Preliminary Design Services was projected to last for 18 months. It began in ...
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