Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to execute a planned contract modification (#6) for professional engineering services with DLZ Ohio, Inc. in connection with the Olentangy-Scioto Interceptor Sewer (OSIS) Augmentation and Relief Sewer (OARS) (Engineering & Design) from the Henry Street Regulator to the Jackson Pike Wastewater Treatment Plant.
This modification is for 2013 and will provide for engineering services during construction of OARS, including shop drawing review, responding to requests for information, interpretation of contract documents, review of construction details, preparation of change orders, claim review, start-up assistance, preparation of record drawings and other services required during construction.
The proposed modification amount is $3,530,216.05 which includes a 10% contingency amount that will be utilized to fund any needed and approved changes in the work. Two (2) additional future modifications are anticipated at this time for engineering services during construction. A summary of the design contract, legislation and ordinance dates and funding amounts is as follows:
The original contract for DLZ Ohio, Inc. was for the design of Phase 1 of the OSIS Augmentation and Relief Sewer (OARS). The work included the design of a 15,000 foot long large diameter conduit via open-cut methods and other facilities and appurtenances to convey Combined Sewer flows from the vicinity of the Whittier Street Storm Standby Tanks south to the vicinity of the Jackson Pike Wastewater Treatment Plant.
This modification provides engineering services for the construction of Phase 1 and Phase 2 of the OARS project, including general services, technical interpretation of contract documents, shop drawing review, commissioning and record plan drawing preparation. The modification also includes engineering fees for Berliner Park Sanitary Pump Station Design, OSIS Manhole Improvements, and continued...
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