US Bridges

County Highway 16 over Sheyenne River

Fair

Cass County, North Dakota · 2 West 3 South Horace · Structure no. 000000009137360

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
183 ft
3 main spans
Daily traffic
950
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway 16 over Sheyenne River is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway 16 over Sheyenne River in Cass County, North Dakota. It was built in 1990, so it is 35 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 950 vehicles a day, roughly 20% of them trucks, projected to reach 1,750 by 2039. The structure is 183 ft (55.8 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Highway 16
CrossesSheyenne River
Location2 West 3 South Horace
RouteCounty Highway 950
CountyCass County
StateNorth Dakota
Coordinates46.71731, -96.94464
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span59 ft (18 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2019)
Projected traffic1,750 by 2039
Trucks20%
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 16 over Sheyenne River built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Highway 16 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 June 2023.

How much traffic does County Highway 16 over Sheyenne River carry?

About 950 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is County Highway 16 over Sheyenne River?

The structure is 183 ft (55.8 m) long with a longest span of 59 ft (18 m) and a deck 43 ft wide.

Who owns County Highway 16 over Sheyenne River?

It is owned by the County Highway Agency.