US Bridges

Interstate 94 over Swan Creek

Fair

Cass County, North Dakota · 4 East of Nd 18 · Structure no. 0094334998 L

Built
1959
66 years old, rebuilt 1985
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
90 ft
2 main spans
Daily traffic
5,850
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 94 over Swan Creek is a concrete continuous tee beam carrying Interstate 94 over Swan Creek in Cass County, North Dakota. It was built in 1959 and reconstructed in 1985, so it is 66 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 5,850 vehicles a day, roughly 15% of them trucks, projected to reach 5,850 by 2039. The structure is 90 ft (27.4 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesInterstate 94
CrossesSwan Creek
Location4 East of Nd 18
RouteInterstate 94
Coordinates46.87678, -97.13208
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span41 ft (12.5 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,850 (2019)
Projected traffic5,850 by 2039
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 94 over Swan Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1985.

What condition is Interstate 94 over Swan Creek 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 Interstate 94 over Swan Creek carry?

About 5,850 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is Interstate 94 over Swan Creek?

The structure is 90 ft (27.4 m) long with a longest span of 41 ft (12.5 m) and a deck 43 ft wide.

Who owns Interstate 94 over Swan Creek?

It is owned by the State Highway Agency.