US Bridges

Fdr 373 over Brushy Fork

Fair

Idaho County, Idaho · 22 MI East of Powell R S · Structure no. 010506000000032

Built
1956
69 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
46 ft
1 main span
Daily traffic
60
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 373 over Brushy Fork is a wood or timber stringer/multi-beam or girder carrying Fdr 373 over Brushy Fork in Idaho County, Idaho. It was built in 1956, so it is 69 years old, older than the Idaho average of 45.3 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 60 vehicles a day, projected to reach 90 by 2045. The structure is 46 ft (14 m) long and 15 ft wide.

CarriesFdr 373
CrossesBrushy Fork
Location22 MI East of Powell R S
RouteFederal Lands Road 373
StateIdaho
Coordinates46.6172, -114.47507
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (—)
Projected traffic90 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 373 over Brushy Fork built?

It was built in 1956, making it 69 years old in 2025.

What condition is Fdr 373 over Brushy Fork 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 2024.

How much traffic does Fdr 373 over Brushy Fork carry?

About 60 vehicles per day (latest count).

How long is Fdr 373 over Brushy Fork?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 15 ft wide.

Who owns Fdr 373 over Brushy Fork?

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