US Bridges

County Road over Blacksmith Fork River

FairPosted for load

Cache County, Utah · South of Hardware Ranch · Structure no. 005054C

Built
1983
42 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
80
2013 count
Owner
County
County Highway Agency

About this bridge

County Road over Blacksmith Fork River is a steel stringer/multi-beam or girder carrying County Road over Blacksmith Fork River in Cache County, Utah. It was built in 1983, so it is 42 years old, older than the Utah average of 40.1 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 80 vehicles a day, roughly 25% of them trucks, projected to reach 300 by 2030. The structure is 30 ft (9 m) long and 31 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesBlacksmith Fork River
LocationSouth of Hardware Ranch
RouteCounty Highway 1160
CountyCache County
StateUtah
Coordinates41.57483, -111.5643
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating32.2 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2013)
Projected traffic300 by 2030
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road over Blacksmith Fork River built?

It was built in 1983, making it 42 years old in 2025.

What condition is County Road over Blacksmith Fork 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 May 2024.

How much traffic does County Road over Blacksmith Fork River carry?

About 80 vehicles per day (2013 count), of which roughly 25% are trucks.

How long is County Road over Blacksmith Fork River?

The structure is 30 ft (9 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns County Road over Blacksmith Fork River?

It is owned by the County Highway Agency.