US Bridges

U.S. Route 89 over Gros Ventre River

Fair

Teton County, Wyoming · 6.1 Miles North of Jackso · Structure no. 1460002P0000000

Built
1962
63 years old, rebuilt 1986
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
251 ft
5 main spans
Daily traffic
9,700
2023 count
Owner
Federal
National Park Service

About this bridge

U.S. Route 89 over Gros Ventre River is a concrete continuous tee beam carrying U.S. Route 89 over Gros Ventre River in Teton County, Wyoming. It was built in 1962 and reconstructed in 1986, so it is 63 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 5 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 9,700 vehicles a day, roughly 1% of them trucks, projected to reach 10,670 by 2043. The structure is 251 ft (76.5 m) long and 40 ft wide. If it were closed, the detour would be 75.2 mi (121 km).

CarriesU.S. Route 89
CrossesGros Ventre River
Location6.1 Miles North of Jackso
RouteFederal Lands Road 10
StateWyoming
Coordinates43.5665, -110.73312
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating70 US tons
Inventory rating42 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length251 ft (76.5 m)
Longest span55 ft (16.8 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,700 (2023)
Projected traffic10,670 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.2 mi (121 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. Route 89 over Gros Ventre River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1986.

What condition is U.S. Route 89 over Gros Ventre 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 September 2023.

How much traffic does U.S. Route 89 over Gros Ventre River carry?

About 9,700 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is U.S. Route 89 over Gros Ventre River?

The structure is 251 ft (76.5 m) long with a longest span of 55 ft (16.8 m) and a deck 40 ft wide.

Who owns U.S. Route 89 over Gros Ventre River?

It is owned by the National Park Service.