Dorchester County, SC Parking Rules: Commercial & Oversized Vehicles (2026)

6 of the county's Zoning and Land Development Standards Ordinance (Ord. No. 04-13) targets commercial vehicles parked on residential lots, streets, rights-of-way, or road shoulders within the county's six residential zoning districts: R1, R1M, R2, R2M, R3, and R4. Subsection (a) prohibits parking a commercial vehicle in any of those districts for longer than one hour, with two carve-outs: emergency situations, and the time actually needed to pick up, load, unload, or deliver materials or passengers. The one-hour limit also does not apply to a lot larger than two acres, provided the vehicle is adequately screened from view.

Subsection (c) defines "commercial vehicle" with three independent thresholds, meeting any one of them is enough to trigger the rule: a tare weight over five tons (10,000 pounds), more than two axles, or a height greater than 8 feet. That sweeps in most box trucks, tractor-trailers, dump trucks, and similar equipment, and the ordinance folds construction equipment and farming equipment of any type into the same definition regardless of weight or axle count. Subsection (b) spells out the county's reasoning for the rule: eliminating the visual blight of large commercial vehicles parked indefinitely in residential neighborhoods, minimizing physical damage to publicly maintained rights-of-way from heavy vehicle traffic and parking, protecting residential property values and neighborhood character, reducing traffic congestion, and protecting children from traffic injuries created by oversized vehicles blocking sightlines on residential streets.

Because the rule reaches vehicles parked on the street and right-of-way shoulder as well as on private lots, a resident cannot avoid it simply by parking a qualifying commercial vehicle at the curb in front of their house.