US Bridges

Fdr 740 over Hoback River

FairPosted for load

Sublette County, Wyoming · T35N R115W Section 2 · Structure no. 040302000001504

Built
1980
45 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 740 over Hoback River is a steel stringer/multi-beam or girder carrying Fdr 740 over Hoback River in Sublette County, Wyoming. It was built in 1980, so it is 45 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2010. The structure is 50 ft (15.2 m) long and 15 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesFdr 740
CrossesHoback River
LocationT35N R115W Section 2
RouteFederal Lands Road 30059
StateWyoming
Coordinates43.04037, -110.48448
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23 US tons
Inventory rating17 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 15
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2010
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
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$151,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 740 over Hoback River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Fdr 740 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 September 2024.

How much traffic does Fdr 740 over Hoback River carry?

About 50 vehicles per day (latest count).

How long is Fdr 740 over Hoback River?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 15 ft wide.

Who owns Fdr 740 over Hoback River?

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