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Hartman Road/Foster Park Relief Sewer

Page last updated April 21, 2025

Project updates: Construction is underway in Foster Park near Hartman Road. Stone paths and a portion of Hartman Road are in place to keep the trail open. Residents should refer to the trail signage posted along Hartman. 

Expected completion date: December 2025

A Google Maps image of the project area for Hartman Road - Foster Park sewer project.

Project Area

City Utilities is making the most significant investment in the history of our sewer system: a five-mile-long deep rock tunnel that will connect to neighborhoods with drop shafts and consolidation sewers to reduce combined sewer overflows from our rivers significantly.

The last phase of the work is to protect the St. Marys River and nearby neighborhoods. Work through the park and near Hartman Road begins this week.

We are now in the final three connecting projects to protect the Foster Park neighborhoods and connect to the tunnel. Work to construct a 72-inch sewer pipe and diversion structures through Foster Park and near Hartman Road began in November 2023.

The relief sewer will pull combined sewage from surrounding neighborhoods and transport the flow to the deep-rock sewer tunnel. This project will keep more than 25 million gallons of combined sewage out of the St. Mary’s River each year once it is completed and connected to the tunnel.

A Google Maps image of the project area for Hartman Road - Foster Park sewer project.
Project Area
Photo showing Old Mill Road open to three lanes of traffic.
December 2024 - Old Mill Road is open to three lanes of traffic.
Photo of construction crew prepping for asphalt restoration using a backhoe.
December 2024 - Crews prepping for asphalt.
Construction crews in a pit connecting storm water tunnels together for the Foster Park Relief Sewer.
February 2025 - Crews working on new pipe installation.
Construction crews working in a dug up pit with equipment in the Foster Park relief sewer area.
February 2025 - Crews creating a stone trail.