North Dakota Road Signs: 80 mph Interstates, $150 Work Zone Fee

What is the speed limit on North Dakota rural interstates? What is the minimum work zone fine in North Dakota when workers are present? What is the school zone speed in Fargo, Bismarck, or Grand Forks? The ND Driver License Division, NDDOT tests these rules. Rural interstate limit: 80 mph. Work zone minimum fee: $150 when workers are present. School zones and obstructed railroad crossings: 20 mph. Online permit test available.

Table of Contents

1. Great Plains Driving at 80 mph: Why North Dakota DMV Exam Covers Signs You Will not See in Most States

North Dakota roads run from Fargo I-29 corridor and Grand Forks Red River crossings to the wide-open US-2 Hi-Line route, the Missouri River Valley near Bismarck, and the Badlands approaches near Dickinson and Williston. The ND Driver License Division, NDDOT administers the knowledge exam at offices in Fargo, Bismarck, Grand Forks, Minot, Jamestown, Dickinson, Williston, and Devils Lake. An online permit test option is available. if you pass online, you still visit a Driver License office to obtain your permit. All sites close for lunch from 12-1 p.m. except Bismarck, Minot, Grand Forks, and Fargo.

2. North Dakota Sign Shapes: Speed Limits at 80 mph, Orange Work Zones and What the Knowledge Exam Tests

On North Dakota open plains where sight distances stretch for miles, a signs shape and color register before the text is legible even at interstate speeds. The ND knowledge exam tests traffic signs. master every row here before heading to a Driver License office.

Shape	Diagram	Meaning	Example Sign
Octagon (8-sided)		STOP. always and only
Triangle (inverted)		Yield to other traffic
Diamond		Warning - hazard ahead
Rectangle (vertical)		Regulatory - rules of the road
Rectangle (horizontal)		Guide or informational
Pentagon (5-sided)		School zone or crossing - exclusively
Round (circle)		Railroad crossing advance warning - exclusively
Pennant		No passing zone - exclusively
Orange (any shape)		Construction and work zone warnings
Blue (any shape)		Motorist services - gas, food, lodging, hospitals
Brown (any shape)		Recreation areas, parks, and scenic routes

3. North Dakota Regulatory Signs: Speed Limit Violations, $250-$500 Fines and What Goes on Your ND Driving Record

Regulatory signs carry legal force in North Dakota. violations are moving offenses. Enforcement in the manual include: passing a stopped school bus or running a stop sign/red light = ; and operating without insurance = . White rectangular signs, prohibitory signs, and lane-control signs are all tested on the ND knowledge exam.

STOP Sign

Come to a full stop; yield to all traffic and pedestrians before proceeding

YIELD Sign

Slow down and give right-of-way to cross traffic or pedestrians

Speed Limit Sign

Maximum legal speed under ideal conditions

Do Not Enter Sign

You are going the wrong way; do not proceed

Wrong Way Sign

You have entered a one-way road going against traffic

No U-Turn Sign

U-turns are prohibited at this location

No Left Turn Sign

Left turns are not allowed

No Right Turn Sign

Right turns are not allowed

One Way Sign

Traffic moves in one direction only

Keep Right Sign

Stay to the right of an island or obstruction

No Passing Zone Sign

Passing is forbidden in this stretch. pennant-shaped sign

Do Not Pass Sign

Passing prohibited. do not overtake vehicles ahead

No Turn on Red Sign

No turns permitted on a red light at this intersection

No Left Turn on Red Sign

Left turn on red is prohibited here

No Right Turn on Red Sign

Right turn on red is prohibited here

Turn Left Only Sign

You must turn left from this lane

Turn Right Only Sign

You must turn right from this lane

Straight or Turn Right Sign

You may go straight or turn right from this lane

Minimum Speed Limit Sign

You must drive at least this speed on this road

Slower Traffic Keep Right Sign

Slower vehicles must use the right lane

No Parking Sign

Parking is prohibited in this area

No Trucks Sign

Commercial trucks are prohibited on this road

No Bicycles Sign

Bicycles are not permitted on this road

No Pedestrian Crossing Sign

Pedestrians must not cross here

Reserved Parking Sign

Parking reserved for designated users (e.g., accessible parking)

Four Way Stop Sign

All four directions must stop at this intersection

Stop Except Right Turn Sign

All traffic must stop except those turning right

Left Turn Yield on Green Sign

Left-turning vehicles must yield to oncoming traffic on green

Lane Use Control Sign

Indicates which movements are permitted or prohibited from a specific lane

Restricted Lane Ahead Sign

An upcoming lane has restrictions on who may use it

4. Warning Signs on North Dakota Open Plains: Railroad Approaches, Obstructed Intersections and Winter Road Hazards

Diamond-shaped yellow warning signs flag hazards before you reach them. on North Dakota roads that means railroad crossing advance warnings on the state extensive rural rail network, obstructed intersection warnings on rural township roads with limited sight lines, and curve and grade warnings on Badlands approaches near Medora and Dickinson. Orange marks work zones where the minimum fee is $150 when workers are present.

Left Curve

A curve to the left is ahead; reduce speed

Right Curve

A curve to the right is ahead; reduce speed

Sharp Left Turn

A very sharp left turn is coming; slow down significantly

Sharp Right Turn

A very sharp right turn is coming; slow down significantly

Winding Road

Series of curves ahead

Set of Curves (Left-Right)

Multiple curves ahead, first curving left then right

Set of Curves (Right-Left)

Multiple curves ahead, first curving right then left

Sharp Turns (Left-Right)

Successive sharp turns ahead. left then right

Slippery When Wet

Road surface becomes slick in rain; reduce speed

Deer Crossing

Wildlife frequently cross here. white-tailed deer, pronghorn, and pheasants are serious road hazards across North Dakota open prairies and river bottom corridors, especially at dawn and dusk

Pedestrian Crossing

Crosswalk ahead; watch for foot traffic

Bicycle Crossing

Cyclists frequently cross here; slow down and yield to bikes

School Zone / Crossing

Children may be present. North Dakota school speed is 20 mph when passing a school during recess or opening/closing hours; same 20 mph cap applies near obstructed railroad crossings

School Crossing Ahead

A school crosswalk is approaching; watch for children and crossing guards

Divided Highway Begins

Road splits into two one-way sections; keep right

Divided Highway Ends

Two-way traffic resumes

Merging Traffic

Another lane of traffic is joining yours

Added Lane

A new lane is being added ahead. merging traffic does not need to yield

Lane Ends Ahead

Your lane ends ahead. merge safely into the adjacent lane

Lane Ends Merge Left

Your lane ends. move to the left lane

Left Lane Ends

The left lane ends ahead. merge right

Road Narrows

The road becomes narrower ahead; stay alert

Narrow Bridge Ahead

Bridge ahead is narrower than the road. proceed carefully

Low Clearance

Bridge or overhead obstruction with limited height clearance

Railroad Crossing (RR)

Tracks ahead; look and listen for trains

Hill / Steep Grade (Downgrade)

Downgrade ahead; trucks should check brakes

Bump

A raised bump or speed hump is ahead; slow down

Dip

A dip in the road is ahead; reduce speed

Loose Gravel

Road surface has loose gravel. reduce speed and increase following distance

Pavement Ends

Paved road ends ahead; expect gravel or dirt surface

Shoulder Drop Off

Road shoulder drops off steeply. avoid driving on the edge

Watch for Ice on Bridges

Bridges freeze before road surfaces. reduce speed in cold weather

Two Way Traffic Ahead

Divided road ends. two-way traffic begins ahead

Cross Road

An intersection with a crossing road is ahead

Cross Traffic

Traffic crosses your path ahead. be prepared to yield

T Intersection

The road ends at a T. you must turn left or right

Side Road

A side road enters the highway ahead at an angle

Highway Intersection Ahead

A highway intersection is approaching; be prepared to yield or stop

Road Entering Curve

A road enters from the side on a curve ahead. watch for merging traffic

Roundabout

A roundabout is ahead. yield to circulating traffic and travel counterclockwise

Truck Rollover

High risk of truck rollover on this curve or ramp. trucks reduce speed significantly

Weave Area

Traffic is entering and exiting simultaneously. expect lane changes and merging

Advisory Speed

Recommended safe speed for a curve or hazard. not legally enforced but strongly advised

Traffic Signal Ahead

A traffic light is ahead. be prepared to stop

5. North Dakota Guide Signs: I-94, I-29, US-2 and the Routes From Fargo to the Badlands

Guide signs do not regulate driving. they show destinations, distances, and services. Green = highway navigation. Blue = motorist services. Brown = parks and recreation.

Interstate Route Marker

Identifies the interstate number (e.g., I-94, I-29), rural interstate speed can reach 80 mph

US Route Marker

Marks US highways (e.g., US-2 Hi-Line, US-83 Missouri River Corridor, US-85 Badlands, US-281)

State Route Marker

Identifies ND state routes (e.g., ND-6, ND-22 Fort Berthold area, ND-200, ND-1804 Lewis & Clark Scenic Byway)

Exit Sign (Exit Only)

Shows upcoming freeway exit and distance

Mile Marker

Indicates distance from the state line or route origin

Services Sign

Points to nearby gas, food, lodging, or medical facilities

Hospital Sign (H)

Indicates direction to the nearest hospital

Diesel

Indicates diesel fuel is available at the next service area

Park / Recreation Sign

Directs to state parks, campsites, and scenic areas

6. North Dakota Traffic Signals: Yellow Caution Lights on School Buses and What the Knowledge Exam Tests

Flashing red = stop sign. Flashing yellow = yield. The ND knowledge exam covers all signal types: standard lights, arrow signals, flashing signals, and pedestrian signals. In North Dakota, yellow caution lights on a school bus warn that the bus is about to stop and red flashing lights will soon activate. this is a distinct tested signal type.

Standard Traffic Lights

Steady Red

Come to a complete stop behind the stop line. Wait until green.

Steady Yellow

Prepare to stop. the light is about to turn red. Do not speed up to beat it.

Steady Green

Proceed if the intersection is clear. You must still yield to pedestrians and cross traffic.

Green Arrow (left)

You may proceed only in the direction of the arrow. Oncoming traffic is stopped.

Yellow Arrow (no left)

The protected turn is ending. Prepare to stop or yield if you have not yet entered the intersection.

Red Arrow (no left)

Do not turn in the direction of the arrow. Wait for a green arrow or green light.

Green. no left arrow

Proceed straight or right. left turn not permitted on this phase.

Opposing Traffic Extended Green

Oncoming traffic has an extended green phase. wait before turning left.

Flashing Signals

Flashing Red

Treat as a STOP sign, come to a complete stop, then proceed when safe.

Flashing Yellow

Treat as a YIELD sign, slow down, look carefully, and proceed with caution.

Flashing Red Beacon

Overhead flashing red beacon. treat as a stop sign. Come to a full stop, then proceed when safe.

Flashing Green Arrow

You may turn in the direction of the arrow after yielding to oncoming traffic and pedestrians.

Pedestrian Signals

WALK / White Walking Figure & DONT WALK / Orange Hand

White walking figure = pedestrians may cross. Orange hand = do not start crossing; if already crossing, finish quickly.

Flashing Orange Hand + Countdown

Crossing phase is ending. Pedestrians who have started may finish; others should not begin.

Key test point: Flashing red = stop sign. Flashing yellow = yield. Yellow caution lights on a school bus = about to stop; red lights = stop immediately. All three are tested on the North Dakota knowledge exam.

7. North Dakota Pavement Markings: Lane Lines, Bicycle Lane Rules and the 3-Foot Passing Clearance Requirement

Yellow lines separate opposing traffic. White lines separate same-direction traffic. The ND knowledge exam covers lane lines, road arrows, curb markings, and pavement symbols. including the 3-foot minimum bicycle passing rule and designated bicycle lane rules that prohibit general vehicle use.

Line Colors

Yellow lines

Separate traffic moving in opposite directions

White lines

Separate traffic moving in the same direction, or mark the edge of the road

Line Types

Broken yellow line (Single)

Passing allowed when safe on your side

Solid yellow + broken yellow

Passing allowed only on the broken-line side

Double solid yellow lines

No passing in either direction

Broken white line

Lane changes permitted when safe

Solid white line

Do not cross. lane edge, crosswalk, or stop line

Double solid white lines

Do not change lanes. often used near intersections or toll areas

Center Turn Lane

Shared left-turn lane. used to begin or complete a left turn only

Center Turning Lane (sign)

Overhead or posted sign marking a shared center left-turn lane

Pavement Symbols & Special Markings

Arrows in lane

Indicate which direction(s) you may travel from that lane

Stop line (wide white bar)

Stop your vehicle completely behind this line at red lights and stop signs

Stop Here on Red

Painted instruction on pavement. stop at this marked line on red

Crosswalk lines

Mark the pedestrian crossing area. yield to pedestrians within these lines

Broken white line (pavement)

Lane changes permitted when safe

Solid white line (pavement)

Do not cross. lane edge, crosswalk, or stop line

Double solid white lines (pavement)

Do not change lanes. often used near intersections or toll areas

Railroad crossing markings (X + RR)

Advance warning of tracks ahead. painted on pavement before the crossing

Diagonal yellow lines (gore area)

Do not drive in this area. marks a traffic island or diverging zone

Bicycle lane marking

White painted lane reserved for cyclists. do not drive or park in it

HOV / Carpool lane diamond

Lane restricted to vehicles with 2 or more occupants during posted hours

Yellow curb

No parking or stopping at any time

Red curb

No stopping, standing, or parking. fire zone

White curb

Passenger loading/unloading only. brief stops permitted

Key test point: Yellow lines always separate opposing traffic. White lines always separate same-direction traffic. This is a foundational rule that appears on nearly every DMV exam.

8. North Dakota Work Zone Signs: $150 Minimum Fee When Workers Are Present: and It is a Specific Dollar Amount

Orange diamond and rectangular signs with black legends mark every active construction and maintenance work zone on North Dakota highway system. The ND manual is specific: failure to comply with work zone speed limits carries an $150 minimum fee when work is in progress and workers are present. Electronic changeable message signs may also be used in work zones. Slow down significantly through all construction and maintenance zones.

Road Work Ahead

Construction zone begins ahead. reduce speed and be alert

Flagger Ahead

A person is directing traffic. obey their signals immediately

Workers Ahead

Road workers are present. slow down and be prepared to stop

Active Work Zone

You are in an active work zone. fines doubled, drive with extra caution

End of Active Work Zone

Work zone ends. normal speed and rules resume

Work Zone Headlights

Headlights required in this work zone

Lane Closed Ahead

A travel lane ends ahead. merge early and do not pass in the closed lane

Road Closed

Road is completely closed. do not enter, follow detour signs

Orange barrels / cones

Mark lane boundaries and closures in active work zones

Channelizing devices (barricades)

Direct traffic around obstacles or closed areas

• You must obey flaggers in work zones even if their direction conflicts with existing signs or signals.
• North Dakota work zone minimum fee is $150 when work is in progress and workers are present. explicitly stated in the ND manual.
• Electronic changeable message signs may appear in ND work zones displaying updated speed or routing information. obey what they display.
• Never drive through or around a lane closure barrier. follow the channelizing devices (cones, drums, barricades) safely through the work area.

Key test point: Orange always means construction or work zone. If you see orange, reduce speed and increase following distance immediately.

9. North Dakota Railroad Crossings: 20 mph With Obstructed View, 15-50 Foot Stop and Approach Every Crossing Expecting a Train

North Dakota manual states it directly: every crossing must be approached with the expectation that a train is coming. When approaching a railroad crossing with an obstructed view, the maximum speed is 20 mph. Required vehicles must stop within 50 feet and not less than 15 feet from the tracks. Emergency phone numbers are posted on railroad crossing posts or the metal control boxes near the tracks.

Advance Warning Sign

Railroad crossing ahead. the first sign you see. Begin slowing down.

RR Crossbuck Sign (X-shaped)

Located at the crossing itself. yield to trains. Treat as a yield sign if no gates or lights.

Railroad Crossing (at crossing)

Marks the exact railroad crossing location

Crossing Gates

Lower when a train is coming. never drive around or under a lowered gate

Pavement markings (X + RR)

Painted on the road surface before the crossing as an advance warning

Flashing Red Lights

A train is approaching, stop and wait. Do not proceed until lights stop and it is fully clear.

Stop Line

Required ND vehicles stop within 50 feet but not less than 15 feet from the tracks; 20 mph max with obstructed view; approach every crossing expecting a train

• The round yellow advance warning sign is the first sign before an ND railroad crossing. slow down and look both ways.
• When approaching a crossing with an obstructed view, reduce speed to 20 mph.
• School buses, vehicles carrying explosives or flammable liquids, and buses carrying passengers must stop within 50 feet and not less than 15 feet from the tracks. Do not pass them when they are stopped at a crossing.
• Never stop on railroad tracks for any reason. If traffic ahead may force you to stop on the tracks, wait before the crossing until there is room to clear completely.
• Emergency phone numbers are posted on crossing posts or metal control boxes near the tracks. use them if you see an obstruction or any problem at the crossing.
• North Dakota has passive crossings (no signals), approach all of them as if a train is coming, regardless of whether signals are present.

Key test point: Approach every North Dakota railroad crossing expecting a train. Maximum 20 mph with obstructed view. Required vehicles stop 15-50 feet from the tracks. All three rules are tested on the ND knowledge exam.

10. North Dakota School Zone and School Bus Laws: 20 mph, Yellow Caution Light Warning and Both-Direction Stop Rule

Pentagon-shaped, fluorescent yellow-green signs mark ND school zones. North Dakota sets the school zone speed at 20 mph when passing a school during recess or while children are going to or leaving school during opening or closing hours. When a school bus flashes its red lights, drivers approaching from both directions must stop until the bus moves, the driver signals, or the red lights stop flashing.

School Zone

School ahead. be alert for children, reduce speed

School Speed Limit

ND school zone speed is 20 mph during recess and opening/closing hours; school bus yellow caution lights = about to stop; red lights = stop from both directions

Speed Limit Lights Flashing

Speed limit applies only when the flashing lights are active

School Crossing Ahead

Crosswalk used by schoolchildren ahead. yield to crossing guard and students

• North Dakota school zone speed is 20 mph when passing a school during recess or during opening/closing hours. unless otherwise posted.
• When a school bus is stopped with red lights flashing, drivers approaching from both directions must stop. Cannot proceed until: (1) bus begins moving; (2) bus driver signals to pass; or (3) red lights are no longer flashing.
• Yellow caution lights on a school bus warn that the bus is about to stop and red lights will soon activate. slow down and prepare to stop immediately when you see yellow caution lights.
• Be especially alert every time you see a school bus. children at bus stops may run into the street unexpectedly.

Key test point: The pentagon shape is used exclusively for school signs. No other sign category uses this shape. making it one of the easiest shapes to identify on the exam.

11. North Dakota Pedestrian and Bike Signs: 3-Foot Required Clearance and Extra Room in Prairie Crosswinds

Pedestrians have right-of-way at all crosswalks. North Dakota law requires leaving a minimum of 3 feet of passing space between your vehicle and a bicycle. In inclement weather. including North Dakota notorious prairie crosswinds and winter conditions. give bicyclists extra room beyond the 3-foot minimum. Both sign types use fluorescent yellow-green and are tested on the ND knowledge exam.

Pedestrian Crossing Sign

A marked crosswalk is ahead. watch for pedestrians crossing

Bicycle Crossing Sign

Cyclists frequently cross here. reduce speed and yield to bikes

No Bicycles

Bicycles are prohibited on this road or path

No Pedestrian Crossing

Pedestrians must not cross here

• Pedestrians always have the right-of-way in North Dakota crosswalks. marked or unmarked.
• ND law requires a minimum of 3 feet of passing space between your vehicle and a bicycle. In inclement weather (wind, rain, snow), give additional room beyond the minimum.
• After passing a bicyclist, check over your shoulder before moving back to your normal position.
• Avoid driving in designated bicycle lanes. enter only to make a right turn, and signal before doing so.
• Children on bicycles are unpredictable and harder to see. slow down near residential areas and schools, and expect the unexpected.
• Fluorescent yellow-green is used for both school and pedestrian/bike signs. the shape distinguishes between them.

Key test point: Pedestrians always have right-of-way at crosswalks. marked or unmarked. This rule appears on virtually every state DMV exam.

12. How to Pass North Dakota Knowledge Exam: 80 mph Interstates, $150 Work Zone Fees and the Rules That Catch People Off Guard

• Online permit test option. but you still visit an office. North Dakota allows the knowledge exam online. If you pass online, you then visit a Driver License office to obtain your permit. Check that the site you passed at has the permit available. All offices close 12-1 p.m. for lunch except Bismarck, Minot, Grand Forks, and Fargo.
• Know North Dakota full speed limit scale. School/recess/obstructed railroad: 20 mph. Business/residential: 25 mph. Gravel/unposted 2-lane county: 55 mph. Rural paved 2-lane posted: 65 mph. Paved divided multi-lane: 70 mph. Rural interstate: 80 mph. The 80 mph limit on North Dakota rural interstates is among the highest posted limits in the country.
• $150 work zone minimum. when workers present. North Dakota specifies the exact dollar amount and the condition: workers must be present for the fee to apply. Other states say "fines doubled", ND says $150 minimum. Both the amount and the condition are tested.
• Approach every railroad crossing expecting a train. The ND manual states this explicitly. Passive crossings have no signals. approach them the same way. 20 mph if view is obstructed.
• School bus: both directions, yellow then red. Both-direction stop is required. no divided highway exception is mentioned. Yellow caution lights = about to stop; red = stop now. Three conditions to proceed: bus moves, driver signals, or lights stop.
• 3 feet for cyclists. plus extra in bad weather. ND requires the 3-foot minimum AND specifically says to give extra room in inclement weather. relevant on North Dakota wind-exposed open roads.
• for passing a stopped school bus or running a stop sign/red light. Specific fine amounts in the ND manual indicate these rules are taken seriously and are tested.
• Flashing signals. Flashing red = full stop. Flashing yellow = slow and yield. Yellow school bus lights = about to stop, prepare now.
• Yellow lines = opposing traffic, white lines = same direction. Universal rule, always tested on the ND exam.
• Contact the Driver License Division. NDDOT, 608 East Boulevard Avenue, Bismarck, ND 58505-0750. Phone: (701) 328-2725 for vehicle questions.

North Dakota DOT Driver License