US Bridges

US 81 & Nd 5 over I-29/JOLIETTE Int

Fair

Pembina County, North Dakota · JCT US 81 and Nd 5 · Structure no. 0029203413

Built
1959
66 years old, rebuilt 2008
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
255 ft
4 main spans
Daily traffic
1,830
2019 count
Owner
State
State Highway Agency

About this bridge

US 81 & Nd 5 over I-29/JOLIETTE Int is a prestressed concrete continuous stringer/multi-beam or girder carrying US 81 & Nd 5 over I-29/JOLIETTE Int in Pembina County, North Dakota. It was built in 1959 and reconstructed in 2008, so it is 66 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 1,830 vehicles a day, roughly 10% of them trucks, projected to reach 1,830 by 2039. The structure is 255 ft (77.7 m) long and 36 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

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CarriesUS 81 & Nd 5
CrossesI-29/JOLIETTE Int
LocationJCT US 81 and Nd 5
RouteU.S. Route 81
CountyPembina County
StateNorth Dakota
Coordinates48.80361, -97.23201
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.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.7 US tons
Inventory rating38.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span69 ft (21 m)
Deck width36 ft (11.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,830 (2019)
Projected traffic1,830 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

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 US 81 & Nd 5 over I-29/JOLIETTE Int built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2008.

What condition is US 81 & Nd 5 over I-29/JOLIETTE Int 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 2023.

How much traffic does US 81 & Nd 5 over I-29/JOLIETTE Int carry?

About 1,830 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is US 81 & Nd 5 over I-29/JOLIETTE Int?

The structure is 255 ft (77.7 m) long with a longest span of 69 ft (21 m) and a deck 36 ft wide.

Who owns US 81 & Nd 5 over I-29/JOLIETTE Int?

It is owned by the State Highway Agency.