US Bridges

Fdr 250 over NF Clearwater River

Fair

Clearwater County, Idaho · Bungalow Bridge · Structure no. 010501000000105

Built
1958
67 years old
Condition
Fair
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
315 ft
3 main spans
Daily traffic
100
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 250 over NF Clearwater River is a steel stringer/multi-beam or girder carrying Fdr 250 over NF Clearwater River in Clearwater County, Idaho. It was built in 1958, so it is 67 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2045. The structure is 315 ft (96 m) long and 28 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesFdr 250
CrossesNF Clearwater River
LocationBungalow Bridge
RouteFederal Lands Road 250
StateIdaho
Coordinates46.63134, -115.50628
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHS 25 or greater
Structure length315 ft (96 m)
Longest span112 ft (34.1 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (—)
Projected traffic150 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 250 over NF Clearwater River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Fdr 250 over NF Clearwater 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 October 2022.

How much traffic does Fdr 250 over NF Clearwater River carry?

About 100 vehicles per day (latest count), of which roughly 5% are trucks.

How long is Fdr 250 over NF Clearwater River?

The structure is 315 ft (96 m) long with a longest span of 112 ft (34.1 m) and a deck 28 ft wide.

Who owns Fdr 250 over NF Clearwater River?

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