US Bridges

County Highway over Red River of the North

Fair

Richland County, North Dakota · 3 East of Christine · Structure no. 000000039126040

Built
1974
51 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
265 ft
3 main spans
Daily traffic
500
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Red River of the North is a steel stringer/multi-beam or girder carrying County Highway over Red River of the North in Richland County, North Dakota. It was built in 1974, so it is 51 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 500 vehicles a day, roughly 14% of them trucks, projected to reach 250 by 2038. The structure is 265 ft (80.8 m) long and 36 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesCounty Highway
CrossesRed River of the North
Location3 East of Christine
RouteCounty Highway 3906
Coordinates46.57232, -96.75269
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating28.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length265 ft (80.8 m)
Longest span97 ft (29.6 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2018)
Projected traffic250 by 2038
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$360,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Red River of the North built?

It was built in 1974, making it 51 years old in 2025.

What condition is County Highway over Red River of the North 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 January 2024.

How much traffic does County Highway over Red River of the North carry?

About 500 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is County Highway over Red River of the North?

The structure is 265 ft (80.8 m) long with a longest span of 97 ft (29.6 m) and a deck 36 ft wide.

Who owns County Highway over Red River of the North?

It is owned by the County Highway Agency.