US Bridges

I-25 Nbl and Sbl over Clear Creek

Good

Johnson County, Wyoming · Buffalo Marginal · Structure no. ALV

Built
1963
62 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
1,928
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl and Sbl over Clear Creek is a concrete continuous culvert carrying I-25 Nbl and Sbl over Clear Creek in Johnson County, Wyoming. It was built in 1963, so it is 62 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 1,928 vehicles a day, roughly 25% of them trucks, projected to reach 2,699 by 2043. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-25 Nbl and Sbl
CrossesClear Creek
LocationBuffalo Marginal
RouteInterstate 25
StateWyoming
Coordinates44.35196, -106.68616
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,928 (2024)
Projected traffic2,699 by 2043
Trucks25%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 I-25 Nbl and Sbl over Clear Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is I-25 Nbl and Sbl over Clear 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 May 2024.

How much traffic does I-25 Nbl and Sbl over Clear Creek carry?

About 1,928 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is I-25 Nbl and Sbl over Clear Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns I-25 Nbl and Sbl over Clear Creek?

It is owned by the State Highway Agency.