US Bridges

Wyo 12 over Browns Creek

PoorPosted for load

Albany County, Wyoming · JCT Wyo 130 - JCT I-80 · Structure no. CIT

Built
1953
72 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
77 ft
2 main spans
Daily traffic
169
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 12 over Browns Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 12 over Browns Creek in Albany County, Wyoming. It was built in 1953, so it is 72 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 169 vehicles a day, roughly 7% of them trucks, projected to reach 237 by 2043. The structure is 77 ft (23.6 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesWyo 12
CrossesBrowns Creek
LocationJCT Wyo 130 - JCT I-80
RouteState Highway 12
CountyAlbany County
StateWyoming
Coordinates41.39494, -105.82251
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length77 ft (23.6 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic169 (2024)
Projected traffic237 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Wyo 12 over Browns Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is Wyo 12 over Browns Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Wyo 12 over Browns Creek carry?

About 169 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Wyo 12 over Browns Creek?

The structure is 77 ft (23.6 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns Wyo 12 over Browns Creek?

It is owned by the State Highway Agency.