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County adopts spring-thaw speed and weight limits to protect roads

Codington County Board of Commissioners · August 18, 2026

Summary

Codington County adopted a formal spring‑thaw resolution directing posted limits (40 mph; 7 tons/axle on asphalt) from March 1–May 1 to reduce damage and save tax dollars; action authorizes State Patrol enforcement and cites SDCL 32‑22‑55, 32‑22‑56.

Codington County commissioners voted to adopt a spring‑thaw road‑weight resolution that sets a 40‑mile‑per‑hour truck speed limit and a maximum load of seven tons per axle on asphalt roads during the spring thaw (March 1–May 1) when signs are posted.

The measure, requested by Highway Superintendent Rick Small, directs the South Dakota Highway Patrol to enforce posted limits. Commissioners approved the resolution after Small told the board seasonal climatic changes are “detrimental to our highways” and that temporary limits reduce long‑term maintenance costs. The resolution cites SDCL 32‑22‑55 and 32‑22‑56 for penalties on load‑restriction violations.

The board approved the change by a recorded motion at a regular meeting; commissioners and the highway superintendent agreed the seasonal limits are a preventive, cost‑saving step.

The county will erect signs announcing the limits and notify townships and contractors in advance. Small said the Highway Department will continue to coordinate signage locations and timetable for posting and removal to avoid confusion.

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