US Bridges

Wyo 35 over Sage Creek

Fair

Big Horn County, Wyoming · JCT US310 Wy 789 - South · Structure no. CJW

Built
1947
78 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
100 ft
3 main spans
Daily traffic
2,086
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 35 over Sage Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 35 over Sage Creek in Big Horn County, Wyoming. It was built in 1947, so it is 78 years old, older 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 2,086 vehicles a day, roughly 18% of them trucks, projected to reach 2,920 by 2043. The structure is 100 ft (30.6 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesWyo 35
CrossesSage Creek
LocationJCT US310 Wy 789 - South
RouteState Highway 35
CountyBig Horn County
StateWyoming
Coordinates44.87418, -108.48019
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length100 ft (30.6 m)
Longest span37 ft (11.3 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,086 (2024)
Projected traffic2,920 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 35 over Sage Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is Wyo 35 over Sage 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 July 2023.

How much traffic does Wyo 35 over Sage Creek carry?

About 2,086 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Wyo 35 over Sage Creek?

The structure is 100 ft (30.6 m) long with a longest span of 37 ft (11.3 m) and a deck 31 ft wide.

Who owns Wyo 35 over Sage Creek?

It is owned by the State Highway Agency.