US Bridges

I-90 Service Road over Sundance Creek

FairPosted for load

Crook County, Wyoming · Sundance - S Dakota Line · Structure no. BJN

Built
1954
71 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
81 ft
4 main spans
Daily traffic
448
2024 count
Owner
State
State Highway Agency

About this bridge

I-90 Service Road over Sundance Creek is a concrete continuous slab carrying I-90 Service Road over Sundance Creek in Crook County, Wyoming. It was built in 1954, so it is 71 years old, older than the Wyoming average of 48.4 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. Its operating status is: posted for load restriction.

It carries about 448 vehicles a day, roughly 8% of them trucks, projected to reach 627 by 2043. The structure is 81 ft (24.7 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesI-90 Service Road
CrossesSundance Creek
LocationSundance - S Dakota Line
CountyCrook County
StateWyoming
Coordinates44.43455, -104.30599
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating24.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span22 ft (6.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic448 (2024)
Projected traffic627 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$44,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-90 Service Road over Sundance Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is I-90 Service Road over Sundance 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 I-90 Service Road over Sundance Creek carry?

About 448 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is I-90 Service Road over Sundance Creek?

The structure is 81 ft (24.7 m) long with a longest span of 22 ft (6.6 m) and a deck 35 ft wide.

Who owns I-90 Service Road over Sundance Creek?

It is owned by the State Highway Agency.