US Bridges

Or 203 (hwy 066) over Catherine CR (davis Dam)

Fair

Union County, Oregon · 7.2 Mi. S.E. Jct. I-84 · Structure no. 00558A066 01261

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
2,801
2022 count
Owner
State
State Highway Agency

About this bridge

Or 203 (hwy 066) over Catherine CR (davis Dam) is a concrete continuous slab carrying Or 203 (hwy 066) over Catherine CR (davis Dam) in Union County, Oregon. It was built in 1966, so it is 59 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 5 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 2,801 vehicles a day, roughly 15% of them trucks, projected to reach 2,900 by 2042. The structure is 82 ft (25.1 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesOr 203 (hwy 066)
CrossesCatherine CR (davis Dam)
Location7.2 Mi. S.E. Jct. I-84
RouteState Highway 203
CountyUnion County
StateOregon
Coordinates45.23839, -117.92086
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.3 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span32 ft (9.8 m)
Deck width40 ft (12.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,801 (2022)
Projected traffic2,900 by 2042
Trucks15%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 203 (hwy 066) over Catherine CR (davis Dam) built?

It was built in 1966, making it 59 years old in 2025.

What condition is Or 203 (hwy 066) over Catherine CR (davis Dam) 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 Or 203 (hwy 066) over Catherine CR (davis Dam) carry?

About 2,801 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Or 203 (hwy 066) over Catherine CR (davis Dam)?

The structure is 82 ft (25.1 m) long with a longest span of 32 ft (9.8 m) and a deck 40 ft wide.

Who owns Or 203 (hwy 066) over Catherine CR (davis Dam)?

It is owned by the State Highway Agency.