Project Summary
A failed culvert threatened a heavily traveled road in Oliver County, North Dakota. TrueNorth Steel delivered 450 feet of galvanized corrugated steel pipe within two weeks to support the emergency replacement.
When a Culvert Failure Threatens a County Road
In June 2025, a pipe failure beneath a heavily traveled Oliver County road created an urgent infrastructure problem. Increasing erosion raised concerns about a potential washout and public safety, requiring the county to act quickly.
For county road departments, a culvert failure can quickly affect more than drainage. Continued erosion can threaten the roadway above and disrupt an important transportation route. Oliver County needed an emergency culvert replacement that could stabilize the roadway without an extended material delay.
The project demonstrates the critical role corrugated steel culverts play beneath local transportation networks. These structures move water safely beneath roadways while helping protect the surrounding embankment and road structure.
450 Feet of Corrugated Steel Pipe for the Replacement
Oliver County turned to TrueNorth Steel for the replacement pipe. The NCSPA member company fabricated nine 50-foot sections of corrugated steel pipe, providing 450 linear feet for the project. Each section measured 96 inches in diameter.
The 12-gauge helical pipe featured a 5-inch by 1-inch corrugation profile and galvanized coating. The system provided the structural strength and corrosion resistance needed for long-term roadway performance. The project shows how standard corrugated steel pipe can meet the demands of large-diameter roadway drainage applications.
Material selection becomes especially important when agencies need to replace failed infrastructure quickly. Corrugated steel pipe offers a range of sizes, gauges and configurations for transportation and drainage projects. Engineers can also use NCSPA’s Service Life Calculator to evaluate expected CSP performance under different site conditions.
Two-Week Turnaround Keeps the Project Moving
With roadway conditions creating an immediate concern, the project required more than the right pipe. It also required a manufacturer capable of responding quickly.
TrueNorth Steel prioritized production at its Huron, South Dakota, facility to meet the accelerated schedule. The company produced and delivered all nine sections within two weeks of the order. That quick turnaround allowed Oliver County to proceed with installation and limit traffic disruption.
That responsiveness can make a meaningful difference during an emergency culvert replacement. Long material lead times can extend closures or restrictions while a damaged drainage structure continues to deteriorate. In Oliver County, rapid fabrication helped move the project from an urgent roadway problem toward construction in a matter of weeks.
The project also highlights one of the practical advantages discussed throughout NCSPA’s Why Steel resources. Corrugated steel infrastructure combines engineered performance with manufacturing flexibility that can support both planned projects and time-sensitive repairs.
Restoring the Oliver County Road
The Oliver County Roads Department served as contractor for the project, installing the new pipe and completing the replacement in July 2025. The completed work restored roadway integrity and provided a durable, corrosion-resistant drainage solution.
From the initial pipe failure in June to project completion in July, the response centered on keeping an important county road safely in service. TrueNorth Steel’s accelerated production supplied the material needed to keep that response moving.
For local agencies managing aging culverts and unexpected failures, the Oliver County project provides a straightforward example of responsive infrastructure replacement. The combination of galvanized corrugated steel pipe, rapid fabrication and county installation addressed an immediate safety concern while providing a long-term solution beneath the roadway.