US Bridges

No Data Entered over Imnaha River

Good

Wallowa County, Oregon · Indian Crossing Cg · Structure no. 061604000001116

Built
1965
60 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
62 ft
1 main span
Daily traffic
20
2001 count
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over Imnaha River is a wood or timber stringer/multi-beam or girder carrying No Data Entered over Imnaha River in Wallowa County, Oregon. It was built in 1965, so it is 60 years old, older than the Oregon average of 49.9 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 20 vehicles a day, projected to reach 30 by 2045. The structure is 62 ft (18.8 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesNo Data Entered
CrossesImnaha River
LocationIndian Crossing Cg
RouteFederal Lands Road 39600
StateOregon
Coordinates45.1116, -117.01498
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
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 rating41 US tons
Inventory rating28 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length62 ft (18.8 m)
Longest span60 ft (18.4 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2001)
Projected traffic30 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 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 No Data Entered over Imnaha River built?

It was built in 1965, making it 60 years old in 2025.

What condition is No Data Entered over Imnaha 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 July 2023.

How much traffic does No Data Entered over Imnaha River carry?

About 20 vehicles per day (2001 count).

How long is No Data Entered over Imnaha River?

The structure is 62 ft (18.8 m) long with a longest span of 60 ft (18.4 m) and a deck 16 ft wide.

Who owns No Data Entered over Imnaha River?

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