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TO: Mayor Richard C. Irvin
FROM: Kurt Muth, P.E., Engineering Coordinator
DATE: March 25, 2019
SUBJECT:
A resolution to award the Breckenridge Drive Sanitary Sewer Improvement project to Brandt Excavating, Inc., 385 E. Hoover St., Morris, IL 60450 located in Ward 8.
PURPOSE:
To install a 10" relief sanitary sewer along Breckenridge Drive between Inverness Drive and Waterbury Court that will add capacity to the sanitary sewer system where there are capacity issues that have led to basement back-ups during significant rain events.
BACKGROUND:
The City of Aurora has confirmation that 10 sewer backups have occurred near the intersection of Inverness Drive and Clarendon Lane in the Oakhurst Subdivision. The backups occurred as a result of the severe storm events that occurred on October 14th, 2017 and in April 2013. As a result, the City of Aurora engineering division evaluated this basin of sanitary sewers by means of flow metering, sewer televising and manhole inspection. This investigation found that a unit of the Oakhurst subdivision, which was one of the last areas in town that had the sanitary sewer constructed with clay pipe, is experiencing large volumes of inflow and infiltration (I&I) during rain events. The clay sanitary sewer mains in this unit were lined with a cured in place pipe liner in early 2018 but the resulting reduction of I&I was not significant enough to confidently eliminate future back-ups because I&I is still entering the system via the clay services in that unit. This unit of the subdivision is upstream of the area where the basement back-ups occur. Flow metering has confirmed excess flow during severe rain events has compromised the capacity of the sewer on Breckenridge Drive which led to the sewer back-ups. This proposed 10" relief sewer will separate the excess flows from the area that has basement back-ups and route the flows to a downstream sewer with a larger capacity.
DISCUSSION:
Four bids were received, opened, and read aloud on March 13, 2019. The bid tabulation can be seen in the attached Exhibit C. The lowest responsible bid in the amount of $204,999.70 was submitted by Brandt Excavating, Inc. The sanitary sewer improvements will be funded with account 510-4063-511-73-14 (IB018) which has a 2019 budget amount of $3,000,000. Also included as Exhibits B & D are the advertisement for bid and Brandt Excavating, Inc.'s submitted bid.
This project was subject to the Local Preference Ordinance however no local contractor submitted.
IMPACT STATEMENT:
There will be a temporary closure to thru traffic of Breckenridge Drive between Inverness Drive and Waterbury Drive during the duration of the project. The contractor will maintain access to the driveways in the section of Breckenridge Drive during the duration of the project. Sanitary service will not be interrupted during the project.
RECOMMENDATIONS:
I request the proposed resolution be adopted.
cc: Buildings, Grounds and Infrastructure Committee
CITY OF AURORA, ILLINOIS
RESOLUTION NO. _________
DATE OF PASSAGE ________________
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A Resolution to Award the contract for the Breckenridge Drive Sanitary Sewer Improvement project to Brandt Excavating, Inc., 385 E. Hoover St., Morris, IL 60450 in the amount of two hundred four thousand, nine hundred ninety-nine dollars and seventy cents ($204,999.70).
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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 Breckenridge Drive sanitary sewer will add capacity to the sanitary sewer system where there are capacity issues that have led to basement back-ups during significant rain events;
WHEREAS, Brandt Excavating, Inc., submitted the lowest responsible bid out of 4 bids received, opened and read aloud on March 13, 2019;
WHEREAS, the sanitary sewer improvements have been funded in the 2019 budget within account 510-4063-511-73-14 ($3,000,000, 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 Brandt Excavating, Inc., 385 E. Hoover St., Morris, IL 60450 in the amount of two hundred four thousand, nine hundred ninety-nine dollars and seventy cents ($204,999.70).