US Bridges

Forest Road 10046 over South Cottonwood Creek

Fair

Sublette County, Wyoming · No Data Entered · Structure no. 040302000001025

Built
1984
41 years old
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
30 ft
1 main span
Daily traffic
20
Owner
Federal
U.S. Forest Service

About this bridge

Forest Road 10046 over South Cottonwood Creek is a steel girder and floorbeam system carrying Forest Road 10046 over South Cottonwood Creek in Sublette County, Wyoming. It was built in 1984, so it is 41 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 20 vehicles a day, projected to reach 30 by 2045. The structure is 30 ft (9.1 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesForest Road 10046
CrossesSouth Cottonwood Creek
LocationNo Data Entered
RouteFederal Lands Road 10046
CountySublette County
StateWyoming
Coordinates42.77553, -110.48459
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (—)
Projected traffic30 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Road 10046 over South Cottonwood Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Forest Road 10046 over South Cottonwood 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 September 2024.

How much traffic does Forest Road 10046 over South Cottonwood Creek carry?

About 20 vehicles per day (latest count).

How long is Forest Road 10046 over South Cottonwood Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns Forest Road 10046 over South Cottonwood Creek?

It is owned by the U.S. Forest Service.