US Bridges

County Highway over I-29/CARLISLE Int

Fair

Pembina County, North Dakota · 3 South of Nd 5 · Structure no. 0029200243

Built
1959
66 years old, rebuilt 1983
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
260 ft
4 main spans
Daily traffic
20
2019 count
Owner
State
State Highway Agency

About this bridge

County Highway over I-29/CARLISLE Int is a prestressed concrete continuous stringer/multi-beam or girder carrying County Highway over I-29/CARLISLE Int in Pembina County, North Dakota. It was built in 1959 and reconstructed in 1983, 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 20 vehicles a day, projected to reach 20 by 2039. The structure is 260 ft (79.2 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesI-29/CARLISLE Int
Location3 South of Nd 5
RouteCounty Highway 0
CountyPembina County
StateNorth Dakota
Coordinates48.76024, -97.21105
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 alignment7: Better than present minimum criteria
Operating rating43.4 US tons
Inventory rating31.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span62 ft (18.9 m)
Deck width30 ft (9.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic20 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 County Highway over I-29/CARLISLE Int built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1983.

What condition is County Highway over I-29/CARLISLE 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 County Highway over I-29/CARLISLE Int carry?

About 20 vehicles per day (2019 count).

How long is County Highway over I-29/CARLISLE Int?

The structure is 260 ft (79.2 m) long with a longest span of 62 ft (18.9 m) and a deck 30 ft wide.

Who owns County Highway over I-29/CARLISLE Int?

It is owned by the State Highway Agency.