US Bridges

Willow Ck.-Crkd.R. over Crooked River

Good

Boise County, Idaho · 7 MI NW Deer Park · Structure no. 040203000001051

Built
1970
55 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
36 ft
1 main span
Daily traffic
5
2018 count
Owner
Federal
U.S. Forest Service

About this bridge

Willow Ck.-Crkd.R. over Crooked River is a wood or timber stringer/multi-beam or girder carrying Willow Ck.-Crkd.R. over Crooked River in Boise County, Idaho. It was built in 1970, so it is 55 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5 vehicles a day, projected to reach 7 by 2045. The structure is 36 ft (11 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesWillow Ck.-Crkd.R.
CrossesCrooked River
Location7 MI NW Deer Park
RouteFederal Lands Road 303
StateIdaho
Coordinates43.99098, -115.48857
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2018)
Projected traffic7 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Willow Ck.-Crkd.R. over Crooked River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Willow Ck.-Crkd.R. over Crooked River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Willow Ck.-Crkd.R. over Crooked River carry?

About 5 vehicles per day (2018 count).

How long is Willow Ck.-Crkd.R. over Crooked River?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 15 ft wide.

Who owns Willow Ck.-Crkd.R. over Crooked River?

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