US Bridges

Wyo 34 over Bluegrass Creek

Fair

Platte County, Wyoming · Bosler JCT - Wheatland · Structure no. EVL

Built
1983
42 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
115 ft
3 main spans
Daily traffic
1,304
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 34 over Bluegrass Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 34 over Bluegrass Creek in Platte County, Wyoming. It was built in 1983, so it is 42 years old, younger 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.

It carries about 1,304 vehicles a day, roughly 3% of them trucks, projected to reach 1,826 by 2043. The structure is 115 ft (35.1 m) long and 39 ft wide. If it were closed, the detour would be 82 mi (132 km).

Location

Open in Google Maps
CarriesWyo 34
CrossesBluegrass Creek
LocationBosler JCT - Wheatland
RouteState Highway 34
CountyPlatte County
StateWyoming
Coordinates41.87078, -105.21452
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.6 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span45 ft (13.7 m)
Deck width39 ft (11.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,304 (2024)
Projected traffic1,826 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed82 mi (132 km)
TollOn a free road
National Highway SystemNo

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 Wyo 34 over Bluegrass Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Wyo 34 over Bluegrass 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 April 2023.

How much traffic does Wyo 34 over Bluegrass Creek carry?

About 1,304 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Wyo 34 over Bluegrass Creek?

The structure is 115 ft (35.1 m) long with a longest span of 45 ft (13.7 m) and a deck 39 ft wide.

Who owns Wyo 34 over Bluegrass Creek?

It is owned by the State Highway Agency.