US Bridges

Interstate 29 over Nd 54 and Soo Line RR

Fair

Walsh County, North Dakota · Junction Nd 54 · Structure no. 0029160927 R

Built
1971
54 years old, rebuilt 2007
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
255 ft
4 main spans
Daily traffic
2,425
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 29 over Nd 54 and Soo Line RR is a prestressed concrete continuous box beam or girders - single or spread carrying Interstate 29 over Nd 54 and Soo Line RR in Walsh County, North Dakota. It was built in 1971 and reconstructed in 2007, so it is 54 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 5 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 2,425 vehicles a day, roughly 29% of them trucks, projected to reach 2,425 by 2039. The structure is 255 ft (77.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 29
CrossesNd 54 and Soo Line RR
LocationJunction Nd 54
RouteInterstate 29
Coordinates48.19694, -97.18886
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.6 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span69 ft (21 m)
Deck width47 ft (14.3 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,425 (2019)
Projected traffic2,425 by 2039
Trucks29%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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 Interstate 29 over Nd 54 and Soo Line RR built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2007.

What condition is Interstate 29 over Nd 54 and Soo Line RR 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 April 2023.

How much traffic does Interstate 29 over Nd 54 and Soo Line RR carry?

About 2,425 vehicles per day (2019 count), of which roughly 29% are trucks.

How long is Interstate 29 over Nd 54 and Soo Line RR?

The structure is 255 ft (77.7 m) long with a longest span of 69 ft (21 m) and a deck 47 ft wide.

Who owns Interstate 29 over Nd 54 and Soo Line RR?

It is owned by the State Highway Agency.