US Bridges

Or 203 (hwy 340) over Catherine Creek (park)

Fair

Union County, Oregon · 9.6 Mi. SE Jct. or 237 · Structure no. 02336 340 00957

Built
1940
85 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
83 ft
3 main spans
Daily traffic
230
2022 count
Owner
State
State Highway Agency

About this bridge

Or 203 (hwy 340) over Catherine Creek (park) is a wood or timber stringer/multi-beam or girder carrying Or 203 (hwy 340) over Catherine Creek (park) in Union County, Oregon. It was built in 1940, so it is 85 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 230 vehicles a day, roughly 20% of them trucks, projected to reach 240 by 2042. The structure is 83 ft (25.3 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesOr 203 (hwy 340)
CrossesCatherine Creek (park)
Location9.6 Mi. SE Jct. or 237
RouteState Highway 203
CountyUnion County
StateOregon
Coordinates45.14287, -117.72318
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length83 ft (25.3 m)
Longest span27 ft (8.2 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2022)
Projected traffic240 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 203 (hwy 340) over Catherine Creek (park) built?

It was built in 1940, making it 85 years old in 2025.

What condition is Or 203 (hwy 340) over Catherine Creek (park) 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 September 2023.

How much traffic does Or 203 (hwy 340) over Catherine Creek (park) carry?

About 230 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Or 203 (hwy 340) over Catherine Creek (park)?

The structure is 83 ft (25.3 m) long with a longest span of 27 ft (8.2 m) and a deck 29 ft wide.

Who owns Or 203 (hwy 340) over Catherine Creek (park)?

It is owned by the State Highway Agency.