US Bridges

US 30 (hwy 066) over Powder River (bridge St)

Fair

Baker County, Oregon · In Baker City · Structure no. 02793A066 05213

Built
1933
92 years old, rebuilt 1961
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
2,551
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 (hwy 066) over Powder River (bridge St) is a steel stringer/multi-beam or girder carrying US 30 (hwy 066) over Powder River (bridge St) in Baker County, Oregon. It was built in 1933 and reconstructed in 1961, so it is 92 years old, older than the Oregon average of 49.9 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 2,551 vehicles a day, roughly 17% of them trucks, projected to reach 2,700 by 2042. The structure is 54 ft (16.6 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 30 (hwy 066)
CrossesPowder River (bridge St)
LocationIn Baker City
RouteU.S. Route 30
CountyBaker County
StateOregon
Coordinates44.77375, -117.82836
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length54 ft (16.6 m)
Longest span52 ft (16 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,551 (2022)
Projected traffic2,700 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$380,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 30 (hwy 066) over Powder River (bridge St) built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1961.

What condition is US 30 (hwy 066) over Powder River (bridge St) 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 June 2023.

How much traffic does US 30 (hwy 066) over Powder River (bridge St) carry?

About 2,551 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 30 (hwy 066) over Powder River (bridge St)?

The structure is 54 ft (16.6 m) long with a longest span of 52 ft (16 m) and a deck 56 ft wide.

Who owns US 30 (hwy 066) over Powder River (bridge St)?

It is owned by the State Highway Agency.