US Bridges

US 191 over Hoback River

Fair

Sublette County, Wyoming · Daniel JCT - Hoback JCT · Structure no. BSD

Built
1946
79 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
173 ft
2 main spans
Daily traffic
2,509
2024 count
Owner
State
State Highway Agency

About this bridge

US 191 over Hoback River is a steel continuous stringer/multi-beam or girder carrying US 191 over Hoback River in Sublette County, Wyoming. It was built in 1946, so it is 79 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 2,509 vehicles a day, roughly 12% of them trucks, projected to reach 3,513 by 2043. The structure is 173 ft (52.8 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS 191
CrossesHoback River
LocationDaniel JCT - Hoback JCT
RouteU.S. Route 189
CountySublette County
StateWyoming
Coordinates43.28255, -110.5337
Functional classRural Principal Arterial - Other

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length173 ft (52.8 m)
Longest span51 ft (15.5 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,509 (2024)
Projected traffic3,513 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 191 over Hoback River built?

It was built in 1946, making it 79 years old in 2025.

What condition is US 191 over Hoback 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 February 2024.

How much traffic does US 191 over Hoback River carry?

About 2,509 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is US 191 over Hoback River?

The structure is 173 ft (52.8 m) long with a longest span of 51 ft (15.5 m) and a deck 33 ft wide.

Who owns US 191 over Hoback River?

It is owned by the State Highway Agency.