Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to execute a planned contract modification (#5) 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 will be for 2012 and 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. This modification will also complete the design of the improvements necessary for Berliner Park related to the project. Future annual modifications are expected to keep controls and cost in down during construction.
The proposed modification amount is $2,695,892.72 which includes a 10% contingency amount that will be utilized to fund any needed and approved changes in the work. Three (3) 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.
Future modifications are anticipated at this time for engineering services during construction. A summary of the design contract, legislation and ordinance date...
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