US Bridges

Nd Highway 8 over Spring Creek

Fair

Dunn County, North Dakota · North Edge of Halliday · Structure no. 0008114980

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
450
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 8 over Spring Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nd Highway 8 over Spring Creek in Dunn County, North Dakota. It was built in 1971, so it is 54 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 450 vehicles a day, roughly 9% of them trucks, projected to reach 616 by 2039. The structure is 135 ft (41.1 m) long and 37 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesNd Highway 8
CrossesSpring Creek
LocationNorth Edge of Halliday
RouteState Highway 8
CountyDunn County
StateNorth Dakota
Coordinates47.35693, -102.33307
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.1 US tons
Inventory rating52.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span45 ft (13.7 m)
Deck width37 ft (11.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2019)
Projected traffic616 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nd Highway 8 over Spring Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Nd Highway 8 over Spring 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 October 2023.

How much traffic does Nd Highway 8 over Spring Creek carry?

About 450 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is Nd Highway 8 over Spring Creek?

The structure is 135 ft (41.1 m) long with a longest span of 45 ft (13.7 m) and a deck 37 ft wide.

Who owns Nd Highway 8 over Spring Creek?

It is owned by the State Highway Agency.