Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to modify (Mod #1) an existing professional engineering agreement with CHA Consulting, Inc. for the Moler Street Overflow Interceptor Sewer project, CIP 650763-100000. This project will develop, design, and provide engineering services during construction for the City’s Moler Street Overflow Intercepting Sewer and Moler Street Storm Sewer Relocation Project. The overflow interceptor sewer will convey Moler street regulator combined sewer overflows and the south side interceptor sewer wet weather flows directly into the OARS tunnel thru Shaft 3. The storm sewer will be relocated north to provide a discharge location for future inflow redirection in the Moler and Markison tributary areas.
Major scope changes include disconnecting the Moler Street Storm sewer from the Moler Street regulator main storm overflow channel. The Moler Street storm sewer will be redirected north with a new discharge to the Scioto River west of Gates Street. Additional modifications to the Moler Street regulator chamber are required. The disconnection/redirection of Moler Street storm sewer provides future inflow redirection to mitigate Water- In-Basement (WIB) occurrences within the Moler Street combined sewer area and northern portion of the Markison Avenue combined sewer area. Modifications to Moler Street regulator chamber allow capture of its combined sewer overflow and direct conveyance into OARS Shaft 3 using existing storm sewer overflow pipes.
Services will include: field activities to obtain design data, development of a design report, prepare detailed plans and specifications, easements, permits, bid documents, public outreach & coordination activities and provide engineering services during construction. Planning Area: South Side (63)
1.1 Amount of additional funds to be expended: $1,102,239.19
Original Contract $1,751,584.61
Modification #1 $1,102,239.19
Contract Total $1,...
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