US Bridges

I-25 Service Road over Cottonwood Creek

Good

Platte County, Wyoming · El Rancho Intg North · Structure no. AES

Built
1952
73 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete
Length
53 ft
1 main span
Daily traffic
58
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Service Road over Cottonwood Creek is a concrete tee beam carrying I-25 Service Road over Cottonwood Creek in Platte County, Wyoming. It was built in 1952, so it is 73 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.

It carries about 58 vehicles a day, roughly 24% of them trucks, projected to reach 81 by 2043. The structure is 53 ft (16.2 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-25 Service Road
CrossesCottonwood Creek
LocationEl Rancho Intg North
StateWyoming
Coordinates42.29008, -105.04593
Functional classRural Local

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span52 ft (15.7 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2024)
Projected traffic81 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-25 Service Road over Cottonwood Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is I-25 Service Road over Cottonwood 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 March 2023.

How much traffic does I-25 Service Road over Cottonwood Creek carry?

About 58 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is I-25 Service Road over Cottonwood Creek?

The structure is 53 ft (16.2 m) long with a longest span of 52 ft (15.7 m) and a deck 35 ft wide.

Who owns I-25 Service Road over Cottonwood Creek?

It is owned by the State Highway Agency.