US Bridges

County Highway over Sheyenne River

Fair

Cass County, North Dakota · 1 West 1 South of Harwood · Structure no. 000000009138201

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
304 ft
5 main spans
Daily traffic
1,510
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Sheyenne River is a prestressed concrete box beam or girders - single or spread carrying County Highway over Sheyenne River in Cass County, North Dakota. It was built in 1987, so it is 38 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 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 1,510 vehicles a day, roughly 11% of them trucks, projected to reach 765 by 2039. The structure is 304 ft (92.7 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Highway
CrossesSheyenne River
Location1 West 1 South of Harwood
RouteCounty Highway 949
CountyCass County
StateNorth Dakota
Coordinates46.95671, -96.90367
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length304 ft (92.7 m)
Longest span59 ft (18 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,510 (2019)
Projected traffic765 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 1987, making it 38 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 September 2023.

How much traffic does County Highway over Sheyenne River carry?

About 1,510 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is County Highway over Sheyenne River?

The structure is 304 ft (92.7 m) long with a longest span of 59 ft (18 m) and a deck 38 ft wide.

Who owns County Highway over Sheyenne River?

It is owned by the County Highway Agency.