US Bridges

I-90 Service Road over Rocky Ford Creek

GoodPosted for load

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

Built
1956
69 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
115 ft
5 main spans
Daily traffic
275
2024 count
Owner
State
State Highway Agency

About this bridge

I-90 Service Road over Rocky Ford Creek is a concrete continuous slab carrying I-90 Service Road over Rocky Ford Creek in Crook County, Wyoming. It was built in 1956, so it is 69 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 275 vehicles a day, roughly 4% of them trucks, projected to reach 385 by 2043. The structure is 115 ft (35.1 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesI-90 Service Road
CrossesRocky Ford Creek
LocationSundance - S Dakota Line
StateWyoming
Coordinates44.50176, -104.2244
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.4 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span24 ft (7.3 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2024)
Projected traffic385 by 2043
Trucks4%
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$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-90 Service Road over Rocky Ford Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is I-90 Service Road over Rocky Ford Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does I-90 Service Road over Rocky Ford Creek carry?

About 275 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is I-90 Service Road over Rocky Ford Creek?

The structure is 115 ft (35.1 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.

Who owns I-90 Service Road over Rocky Ford Creek?

It is owned by the State Highway Agency.