US Bridges

Forest Road 10156 over Green River

Fair

Sublette County, Wyoming · 30 MI Nw. of Pinedale Wy. · Structure no. 040307000001018

Built
1977
48 years old
Condition
Fair
inspected October 2021
Type
Box Beam or Girders - Multiple
Concrete
Length
140 ft
3 main spans
Daily traffic
150
Owner
Federal
U.S. Forest Service

About this bridge

Forest Road 10156 over Green River is a concrete box beam or girders - multiple carrying Forest Road 10156 over Green River in Sublette County, Wyoming. It was built in 1977, so it is 48 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 150 vehicles a day, roughly 25% of them trucks, projected to reach 225 by 2045. The structure is 140 ft (42.7 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesForest Road 10156
CrossesGreen River
Location30 MI Nw. of Pinedale Wy.
RouteFederal Lands Road 37060
CountySublette County
StateWyoming
Coordinates43.26152, -110.01797
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating50.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length140 ft (42.7 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (—)
Projected traffic225 by 2045
Trucks25%
Lanes on structure2
Traffic directionTwo-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$529,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Road 10156 over Green River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Forest Road 10156 over Green River 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 October 2021.

How much traffic does Forest Road 10156 over Green River carry?

About 150 vehicles per day (latest count), of which roughly 25% are trucks.

How long is Forest Road 10156 over Green River?

The structure is 140 ft (42.7 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Forest Road 10156 over Green River?

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