US Bridges

Nd Highway 3 South over I-94/DAWSON Interchange

Fair

Kidder County, North Dakota · Jct. Nd 3 South · Structure no. 0094208702

Built
1966
59 years old, rebuilt 2006
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
240 ft
4 main spans
Daily traffic
650
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 3 South over I-94/DAWSON Interchange is a prestressed concrete continuous stringer/multi-beam or girder carrying Nd Highway 3 South over I-94/DAWSON Interchange in Kidder County, North Dakota. It was built in 1966 and reconstructed in 2006, so it is 59 years old, older than the North Dakota average of 48.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 650 vehicles a day, roughly 11% of them trucks, projected to reach 480 by 2039. The structure is 240 ft (73.2 m) long and 36 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesNd Highway 3 South
CrossesI-94/DAWSON Interchange
LocationJct. Nd 3 South
RouteState Highway 3
Coordinates46.87846, -99.75136
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating71.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span66 ft (20.1 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2019)
Projected traffic480 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nd Highway 3 South over I-94/DAWSON Interchange built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2006.

What condition is Nd Highway 3 South over I-94/DAWSON Interchange in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Nd Highway 3 South over I-94/DAWSON Interchange carry?

About 650 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Nd Highway 3 South over I-94/DAWSON Interchange?

The structure is 240 ft (73.2 m) long with a longest span of 66 ft (20.1 m) and a deck 36 ft wide.

Who owns Nd Highway 3 South over I-94/DAWSON Interchange?

It is owned by the State Highway Agency.