US Bridges

County Highway over Tongue River

Fair

Pembina County, North Dakota · 1 East of Akra · Structure no. 000000034111160

Built
1984
41 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
270
2014 count
Owner
County
County Highway Agency

About this bridge

County Highway over Tongue River is a prestressed concrete box beam or girders - single or spread carrying County Highway over Tongue River in Pembina County, North Dakota. It was built in 1984, so it is 41 years old, younger 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 270 vehicles a day, roughly 10% of them trucks, projected to reach 380 by 2034. The structure is 50 ft (15.2 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesTongue River
Location1 East of Akra
RouteCounty Highway 3411
CountyPembina County
StateNorth Dakota
Coordinates48.778, -97.70759
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.2 US tons
Inventory rating29.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2014)
Projected traffic380 by 2034
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Tongue River built?

It was built in 1984, making it 41 years old in 2025.

What condition is County Highway over Tongue River 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 2024.

How much traffic does County Highway over Tongue River carry?

About 270 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is County Highway over Tongue River?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 32 ft wide.

Who owns County Highway over Tongue River?

It is owned by the County Highway Agency.