US Bridges

County Highway over Sheyenne River

Fair

Nelson County, North Dakota · 2 South Tolna · Structure no. 000000032104290

Built
1975
50 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
148 ft
3 main spans
Daily traffic
150
2017 count
Owner
County
County Highway Agency

About this bridge

County Highway over Sheyenne River is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway over Sheyenne River in Nelson County, North Dakota. It was built in 1975, so it is 50 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 150 vehicles a day, roughly 12% of them trucks, projected to reach 100 by 2037. The structure is 148 ft (45.1 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Highway
CrossesSheyenne River
Location2 South Tolna
RouteCounty Highway 3205
CountyNelson County
StateNorth Dakota
Coordinates47.77972, -98.43996
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length148 ft (45.1 m)
Longest span53 ft (16.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2017)
Projected traffic100 by 2037
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sheyenne River built?

It was built in 1975, making it 50 years old in 2025.

What condition is County Highway over Sheyenne 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 August 2024.

How much traffic does County Highway over Sheyenne River carry?

About 150 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is County Highway over Sheyenne River?

The structure is 148 ft (45.1 m) long with a longest span of 53 ft (16.2 m) and a deck 30 ft wide.

Who owns County Highway over Sheyenne River?

It is owned by the County Highway Agency.