County warned to prepare for switch from riveted to spiral road pipe
Public works staff told the Pipestone County Board that riveted culvert supply may end, requiring policy and inventory changes if the county must adopt spiral pipe; commissioners asked staff to research performance, pricing and installation impacts.
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County public-works staff told the board that a long-standing riveted culvert supplier may stop producing riveted pipe and that the county may need to shift to spiral pipe within about a year. The Director described differences in manufacture and installation, saying spiral pipe clamps at the ends and is less amendable to mid‑span clamping, which would change inventory and installation practices.
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