North Dakota Work Zone Laws

How North Dakota handles work zones

North Dakota raised its construction-zone speeding fee from $80 to $150 on August 1, 2025 (§39-09-02, §39-06.1-06; 2025 HB1298). Go 1 to 10 over and it's $150; beyond that, $150 plus $2 per mph. The higher fee only lands when workers are present and the sign posts a minimum fee. The posted orange limit still binds you on an empty stretch. Obey the flagger's paddle (§39-10-04). No statewide handheld ban, just a texting ban.

Speed, fines, phone, and the flagger

• Speed rule: Obey the posted orange construction-zone limit the whole time the signs stand, workers or not. The enhanced fee only bites when workers are actually present and the sign posts a minimum fee.
• Fine multiplier: $150 minimum construction-zone speeding fee (1-10 mph over); $150 plus $2 per mph beyond 10 over. A set higher schedule, not a straight doubling. The enhancement applies only with workers present and a posted minimum fee.
• Phone in a work zone: Covered by the general handheld rule
• Flagger authority: A flagger's STOP/SLOW paddle carries the force of an official traffic-control device you must obey; disobeying is a citable offense (N.D. Cent. Code §39-10-04).
• Base fine: $150 for 1-10 mph over the posted zone limit; $150 plus $2 for each mph beyond 10 over (workers present). Up from $80 before Aug 1, 2025.

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