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TO: Mayor John Laesch and City Council
FROM: Kurt Muth, P.E., Assistant Director of Public Works
DATE: January 12, 2026
SUBJECT:
A Resolution approving an Intergovernmental Agreement between the City of Aurora and Illinois Department of Transportation for partial reimbursement of the S. Broadway Ave Sewer Separation - Hazel Ave to North Ave project.
PURPOSE:
The City designed, bid, approved and constructed new storm sewers on S. Broadway Avenue (IL Rte 25) between Hazel Avenue and North Avenue in 2025 removing stormwater from the combined sewer system ahead of the street overlay of S. Broadway Avenue to be completed by IDOT's contractor in spring 2026.
BACKGROUND:
New storm sewers were installed to remove surface drainage flows from the combined sewer system. The construction project with Performance, Construction and Engineering was approved by City Council as resolution R25-077 on March 11, 2025. There will be a future phase II project likely in 2026 extending this storm sewer along several adjacent east-west streets in City of Aurora R.O.W. This project has helped to satisfy the requirements associated with the City's Long Term Control Plan and the City's Illinois Environmental Protection Agency Combined Sewer System Overflow Permit.
DISCUSSION:
IDOT has a defined storm sewer reimbursement policy detailed in section 5-5.02(d) of their Bureau of Design and Environmental manual. "Exhibit A" includes the initial reimbursement request from the City and the resulting Letter of Intent issued by IDOT acknowledged by the City. The Letter of Intent accepts the City's request for reimbursement proposal amount of $725,736 which is approximately 31.2% of the storm sewer cost. The reimbursement percentage is calculated based on a formula detailed in the manual which accounts for the percentage of IDOT R.O.W. drained by the proposed storm sewer. A phase II for this storm sewer will include several laterals serving City of Aurora R.O.W.
The IGA attached as...
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