US Bridges

County RD 539 over UPRR

Fair

Baker County, Oregon · At Oxman Oxing FAI-84 · Structure no. 00704 B52201803

Built
1922
103 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
112 ft
3 main spans
Daily traffic
156
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 539 over UPRR is a concrete continuous tee beam carrying County RD 539 over UPRR in Baker County, Oregon. It was built in 1922, so it is 103 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 156 vehicles a day, roughly 1% of them trucks, projected to reach 176 by 2025. The structure is 112 ft (34.1 m) long and 23 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

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CarriesCounty RD 539
CrossesUPRR
LocationAt Oxman Oxing FAI-84
RouteCounty Highway 539
CountyBaker County
StateOregon
Coordinates44.629, -117.516
Functional classRural Major Collector

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.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length112 ft (34.1 m)
Longest span39 ft (11.9 m)
Deck width23 ft (6.9 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2020)
Projected traffic176 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$574,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was County RD 539 over UPRR built?

It was built in 1922, making it 103 years old in 2025.

What condition is County RD 539 over UPRR 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 October 2024.

How much traffic does County RD 539 over UPRR carry?

About 156 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is County RD 539 over UPRR?

The structure is 112 ft (34.1 m) long with a longest span of 39 ft (11.9 m) and a deck 23 ft wide.

Who owns County RD 539 over UPRR?

It is owned by the County Highway Agency.