US Bridges

County Highway over Bnrr

Fair

Cass County, North Dakota · East of No. Fargo Intchg · Structure no. 0029069374 N

Built
1965
60 years old, rebuilt 1983
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
210 ft
3 main spans
Daily traffic
2,425
2019 count
Owner
State
State Highway Agency

About this bridge

County Highway over Bnrr is a steel continuous stringer/multi-beam or girder carrying County Highway over Bnrr in Cass County, North Dakota. It was built in 1965 and reconstructed in 1983, so it is 60 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 2,425 vehicles a day, roughly 16% of them trucks, projected to reach 3,000 by 2039. The structure is 210 ft (64 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Highway
CrossesBnrr
LocationEast of No. Fargo Intchg
RouteCity Street 8403
CountyCass County
StateNorth Dakota
Coordinates46.93411, -96.84735
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating62.1 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span81 ft (24.7 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,425 (2019)
Projected traffic3,000 by 2039
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Highway over Bnrr built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1983.

What condition is County Highway over Bnrr 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 July 2023.

How much traffic does County Highway over Bnrr carry?

About 2,425 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is County Highway over Bnrr?

The structure is 210 ft (64 m) long with a longest span of 81 ft (24.7 m) and a deck 36 ft wide.

Who owns County Highway over Bnrr?

It is owned by the State Highway Agency.