Jamestown replaces aging water mains to improve flow and fire protection

Jamestown has been replacing old iron water mains with PVC on work tied to 2025 street sections near West Business Loop, U.S. 52 and 281, 4th Avenue NW, 7th Street SW, 10th Street SE and 1st Avenue South, aiming to reduce breaks and give homes, businesses and fire crews more reliable service. The city’s water system is built around a plant that can produce 7 million gallons a day, with treated water stored in four elevated tanks and two underground storage facilities that help cover peak demand and provide fire protection.

State records describe the existing mains as mostly original cast iron pipe in poor condition, and the replacement work is not limited to pipe alone. The project also covers deteriorated valves and hydrants, a sign that the city is trying to address the parts of the system most likely to fail during a water main break or an emergency call. For residents and business owners, that should mean steadier pressure and fewer service interruptions. For firefighters, it should mean better hydrant reliability and a stronger water supply when seconds matter.

The North Dakota Department of Environmental Quality issued a categorical exclusion for the Jamestown Water Main Replacement project on April 16, 2025, saying the work qualified for the lighter environmental review because of its scope. The North Dakota State Historic Preservation Officer also found no adverse effect, as long as the city followed the documented plan and used approved borrow sources. Those approvals allowed the city to keep moving on the utility work without a full environmental assessment.

Funding and construction planning have also advanced. Jamestown received a $1.62 million Drinking Water State Revolving Fund loan to replace 14 blocks of cast iron water mains with PVC pipe, including valves and hydrants. City council minutes from May 5, 2025, show Assistant City Attorney Geroux told the council that two bids were unopened at the May 1 bid opening for the 2025 Watermain Replacement Project, Section 1 and Section 2. A bid package for Section 2 called for about 2,700 linear feet of water main installation, along with asphalt and concrete removal and replacement, horizontal drilling, gate valves and fire hydrants. The city also approved a cost-share reimbursement agreement with the North Dakota State Water Commission for 2025 Water Main Replacement, Segment 2 North.

Council Member David Steele said in May 2025 that other aging infrastructure “is something that needs to be taken care of.” In Jamestown, the water work reflects that same logic: replace the old cast iron before it fails again, and the entire system becomes more dependable for the neighborhoods it serves.