US Bridges

Or 7 (hwy 071) over Powder River

Good

Baker County, Oregon · 0.8 Mi. SW Jct. State 410 · Structure no. 16066 071 02479

Built
1973
52 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
443
2022 count
Owner
State
State Highway Agency

About this bridge

Or 7 (hwy 071) over Powder River is a prestressed concrete slab carrying Or 7 (hwy 071) over Powder River in Baker County, Oregon. It was built in 1973, so it is 52 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 443 vehicles a day, roughly 28% of them trucks, projected to reach 450 by 2042. The structure is 52 ft (15.8 m) long and 36 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesOr 7 (hwy 071)
CrossesPowder River
Location0.8 Mi. SW Jct. State 410
RouteState Highway 7
StateOregon
Coordinates44.71339, -118.1701
Functional classRural Minor Arterial

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span49 ft (14.9 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic443 (2022)
Projected traffic450 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 7 (hwy 071) over Powder River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Or 7 (hwy 071) over Powder 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 2023.

How much traffic does Or 7 (hwy 071) over Powder River carry?

About 443 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Or 7 (hwy 071) over Powder River?

The structure is 52 ft (15.8 m) long with a longest span of 49 ft (14.9 m) and a deck 36 ft wide.

Who owns Or 7 (hwy 071) over Powder River?

It is owned by the State Highway Agency.