US Bridges

County Highway over I-94/WEST Sanborn Sep

Fair

Barnes County, North Dakota · 4 West of Nd 1 North · Structure no. 0094279636

Built
1958
67 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
4 main spans
Daily traffic
20
2020 count
Owner
State
State Highway Agency

About this bridge

County Highway over I-94/WEST Sanborn Sep is a prestressed concrete stringer/multi-beam or girder carrying County Highway over I-94/WEST Sanborn Sep in Barnes County, North Dakota. It was built in 1958, so it is 67 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 20 vehicles a day, projected to reach 20 by 2040. The structure is 210 ft (64 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Highway
CrossesI-94/WEST Sanborn Sep
Location4 West of Nd 1 North
RouteCounty Highway 0
CountyBarnes County
StateNorth Dakota
Coordinates46.90693, -98.27007
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span59 ft (18 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2020)
Projected traffic20 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 I-94/WEST Sanborn Sep built?

It was built in 1958, making it 67 years old in 2025.

What condition is County Highway over I-94/WEST Sanborn Sep 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 November 2023.

How much traffic does County Highway over I-94/WEST Sanborn Sep carry?

About 20 vehicles per day (2020 count).

How long is County Highway over I-94/WEST Sanborn Sep?

The structure is 210 ft (64 m) long with a longest span of 59 ft (18 m) and a deck 29 ft wide.

Who owns County Highway over I-94/WEST Sanborn Sep?

It is owned by the State Highway Agency.