City of Columbus - File #: 2457-2018

• File #: 2457-2018
• Version: 1
• Type: Ordinance
• Status: Passed
• File created: 9/4/2018
• In control: Public Utilities Committee
• On agenda: 10/1/2018
• Final action: 10/3/2018
• Title: To authorize the Director of Public Utilities to enter into a construction contract with Kokosing Industrial, Inc. for the O’Shaughnessy Dam - 2018 Spillway Erosion Rehabilitation Project, in an amount up to $3,807,600.00; to provide for payment of prevailing wage services to the Department of Public Service in an amount up to $2,000.00; to authorize a transfer and expenditure up to $3,809,600.00 within the Water General Obligation Bonds Fund; for the Division of Water; to authorize an amendment of the 2018 Capital Improvements Budget; and to declare an emergency. ($3,809,600.00)

Date	Ver.	Action By	Action	Result
10/3/2018	1	CITY CLERK	Attest
10/2/2018	1	MAYOR	Signed
10/1/2018	1	COUNCIL PRESIDENT	Signed
10/1/2018	1	Columbus City Council	Approved	Pass

Explanation

1.0 BACKGROUND: This legislation authorizes the Director of Public Utilities to enter into a construction contract with Kokosing Industrial, Inc. for the O’Shaughnessy Dam - 2018 Spillway Erosion Rehabilitation Project, in an amount up to $3,809,600.00, for Division of Water Capital Improvements Project No. 690472-100002, Contract No. 2182.

Funds in the amount of $2,000.00 will also be encumbered with the Department of Public Service for Prevailing Wage services.

This project will provide for repairs to the O'Shaughnessy Dam spillway to correct erosion and other rehabilitation as identified in the 2015 O'Shaughnessy Hydro FERC independent consultant inspection (Project 690251-100000).

Work consists of replacing the existing wood flashboard system with a similar design including nappe vents; repair of leaking vertical construction joints between concrete spillway monoliths; installing grouted stone erosion protection downstream of the dam; installation of a debris boom upstream of the dam, and other such work as may be necessary to complete the contract in accordance with the drawings and specifications.

Community Planning Area: 99 - N/A; the O’Shaughnessy Dam provides service to several central Ohio communities.

2.0 ECONOMIC IMPACT/ADVANTAGES; COMMUNITY OUTREACH; PROJECT DEVELOPMENT; ENVIRONMENTAL FACTORS/ADVANTAGES OF PROJECT:
This project will address improvement needs for long term maintenance and safe operation of O’Shaughnessy Dam. The O’Shaughnessy Dam is part of a system of dams that provides water for the City of Columbus Dublin Road Water Plant, which serves more than 400,000 customers. Management of the City’s reservoirs and dams is crucial for reliability of the water supply, long-term water supply planning, and economic development of the central Ohio area. Completion of this project will implement improvements identified during a Federal Energy Management Assc. (FERC) mandated review of the infrastructure.

There will be no pu...