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TO: Mayor Richard C. Irvin
FROM: John Hoffmann, P.E., Engineering Coordinator
DATE: July 24, 2023
SUBJECT:
A resolution to award the White Eagle Force Main Improvements located in Ward 8 to H. Linden & Sons Sewer and Water, Inc. in the bid amount of $453,600.00.
PURPOSE:
To install an 8-inch force main to add redundance and reliability to the White Eagle Lift Station.
BACKGROUND:
Sanitary sewers utilize gravity flow to convey wastewater to wastewater treatment plants. Factors such as ground surface topography, soil conditions, constructability and cost effectiveness sometimes lead to the construction of a lift station in which flows are pumped through force mains to a higher elevation where they can then gravity flow to the wastewater treatment plant.
In 2022 and 2023, Fehr Graham designed plans and specifications for the new force main.
The new 8-inch force main will serve as the primary force main for the White Eagle Lift Station. Should issues arise in the future on the new force main, the force main flows will be diverted to the existing 6-inch force main. This redundancy is needed as the consequence of failure of the existing force main would result in numerous basement backups. In the current force main configuration, should a force main failure occur, any temporary bypass pumping would utilize at-grade piping. The bypass pumping would require 2 at-grade road crossings and 7 at-grade driveway crossings requiring temporary pipe ramps until the force main was repaired. This project would alleviate the need for at-grade bypass pumping pipe should a force main failure occur.
As of 2019, the White Eagle Lift Station pumps to the existing 6-inch force main approximately 4.5 hours per day.
DISCUSSION:
Two bids were received, opened, and read aloud on July 12, 2023. The bid tabulation can be seen in the attached Exhibit B. The lowest responsible bid in the amount of $453,600.00 was submitted by H. Linden & Sons Sewer and Water, Inc. The force main improvements ($453,600.00) will be funded with account 510-4063-511-73.14 (IB018) which has sufficient funds to cover the project. Also included as Exhibits C, D & E are the Advertisement for Bid, H. Linden Submitted Bid and Addendum No. 1.
This project was subject to the Local Preference Ordinance, however no local contractors submitted.
IMPACT STATEMENT:
Lane closures can be expected throughout the duration of the project on Palmer Drive and White Eagle Drive. Temporary road closures may be periodically needed and will be kept to a minimum. Impacts to traffic and local residents will be kept to a minimum.
RECOMMENDATIONS:
I request the proposed resolution be adopted.
cc: Infrastructure and Technology Committee
CITY OF AURORA, ILLINOIS
RESOLUTION NO. _________
DATE OF PASSAGE ________________
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A Resolution to Award the contract for the White Eagle Force Main Improvements located in Ward 8 to H. Linden & Sons Sewer and Water, Inc. in the amount of $453,600.00.
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WHEREAS, the City of Aurora has a population of more than 25,000 persons and is, therefore, a home rule unit under subsection (a) of Section 6 of Article VII of the Illinois Constitution of 1970; and
WHEREAS, subject to said Section, a home rule unit may exercise any power and perform any function pertaining to its government and affairs for the protection of the public health, safety, morals, and welfare; and
WHEREAS, the force main improvements at White Eagle Lift Station will provide needed force main redundancy, and
WHEREAS, H. Linden & Sons Sewer and Water, Inc. submitted the lowest responsible bid out of 2 bids received, opened, and read aloud on July 12, 2023, and
WHEREAS, the force main improvements ($453,600.00) have been funded in the 2023 budget within account 510-4063-511-73.14 (IB018);
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Aurora, Illinois, as follows: that the Director of Purchasing is hereby authorized to execute a contract with H. Linden & Sons Sewer and Water, Inc. in the amount of $453,600.00.