US Bridges

Pr over North Fork Wood River

Poor

Blaine County, Idaho · 2 Miles North Snra Hqds · Structure no. 041403000001036

Built
1950
75 years old
Condition
Poor
inspected October 2023
Type
Slab
Wood or Timber
Length
34 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Pr over North Fork Wood River is a wood or timber slab carrying Pr over North Fork Wood River in Blaine County, Idaho. It was built in 1950, so it is 75 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 34 ft (10.4 m) long and 14 ft wide.

Location

Open in Google Maps
CarriesPr
CrossesNorth Fork Wood River
Location2 Miles North Snra Hqds
RouteFederal Lands Road 70149
CountyBlaine County
StateIdaho
Coordinates43.80711, -114.42109
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating32.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 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 Pr over North Fork Wood River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Pr over North Fork Wood River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Pr over North Fork Wood River carry?

About 50 vehicles per day (latest count).

How long is Pr over North Fork Wood River?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 14 ft wide.

Who owns Pr over North Fork Wood River?

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