South Dakota Work Zone Laws

How South Dakota handles work zones

South Dakota doubles your speeding fine in a highway work area, but only where workers are present (S.D. Codified Laws §32-25-19.1). Watch for the orange 'FINES DOUBLE' plaque posted ahead of the reduced-speed sign; that plaque is the tell. The doubled amount can't exceed the Class 2 misdemeanor cap ($500 / 30 days). The posted limit still applies on an empty stretch. A flagger's paddle carries the force of a traffic signal. No statewide handheld ban, only a texting ban.

Speed, fines, phone, and the flagger

• Speed rule: Slow to the posted work-area limit while the signs are up. The doubled fine only applies where workers are present, flagged by a 'FINES DOUBLE' plaque posted ahead of the speed sign.
• Fine multiplier: Fine doubled when workers are present, capped at the Class 2 misdemeanor maximum ($500 / 30 days). Signed with an orange 'FINES DOUBLE' plaque ahead of the reduced-speed sign; no worker, no doubling.
• Phone in a work zone: Covered by the general handheld rule
• Flagger authority: A flagger directing traffic in a work area carries the authority of a traffic-control device; ignoring the paddle is a citable misdemeanor (work area governed by S.D. Codified Laws §32-25-19.1; obedience to traffic-control devices, Title 32).
• Base fine: South Dakota's base speeding fines are among the nation's lowest. In a work area with workers present the fine doubles, capped at the Class 2 misdemeanor maximum ($500 fine / up to 30 days, §22-6-2).

More for South Dakota