East Highland Sanitary Sewer Replacement
Naperville's Water and Wastewater Utility is replacing aging sanitary sewers in the East Highlands area. This project is a necessary infrastructure upgrade to improve drainage and system reliability, helping to prevent future sanitary sewer backups.
Phase I (2026): Includes sanitary sewer replacement on East Hillside Road (between Melody Lane and Willow Road), Melody Lane, Maple Lane, Golden Larch Court and Willow Road (between East Hillside Road and Golden Larch Court). This phase focuses on upgrading aging clay pipe and installing a new lift station to improve drainage and system reliability.
Phases II and III (Anticipated 2027–2028): Includes sanitary sewer replacement on East Hillside Road (between Willow Road and Thornwood Drive), Sunset Drive, Thornwood Drive, Pine Court, Diane Lane, Santa Maria Drive and Willow Road (between Golden Larch Court and Santa Maria Drive). These future phases will continue the system-wide upgrade to ensure long-term utility service.
- Project Location
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Phase I Project Location: East Hillside Road, Melody Lane, Willow Road, Maple Lane and Golden Larch Court.
- Scope of Work
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This project includes replacing approximately 3,500 linear feet of older clay sewer pipe installed in the 1960s with new PVC 8-inch pipe. The existing sewer has reached the end of its useful life and has insufficient slope, which slows drainage. The new pipe will improve how wastewater flows through the system. Construction at the Golden Larch Court cul-de-sac includes a new lift station. This update is a standard improvement to maintain proper flow and system capacity for the area.
- Schedule and Progress
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(Updated May 14, 2026) Construction started on May 14, 2026.
Crews will generally work from Monday through Friday, 7 a.m. to 5 p.m. On occasion, it may be necessary for work to extend beyond these hours or occur on Saturdays.
- Traffic and Access
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Residents should expect temporary delays when navigating through the area. While intermittent lane and intersection closures are expected during active construction, streets will be accessible by the end of each workday.
- Impacts & Restoration
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The installation of the new sanitary sewer occurs primarily under the roadway pavement. However, sanitary service connections may require temporary, localized excavation in driveways or yards.
- Driveways: If a trench across a driveway is required for a service connection, the contractor will fill the area with stone for accessibility. Driveway disruptions for these connections are expected to be limited to a maximum of four hours.
- Restoration: All disturbed areas, including lawns and driveways, will be restored as close as possible to their original condition after construction is complete.
- Utility Service
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Sanitary sewer service is expected to remain in operation throughout the project. In the event of a planned temporary disruption (e.g., when individual service lines are transferred to the new sewer) residents will be notified at least 48 hours in advance via a door hanger. These individual service transfers will be limited to a single shutdown lasting approximately one hour.