US Bridges

Upper Calapooia DR over Washout Creek

Fair

Linn County, Oregon · MP 14.6 · Structure no. 23840 000 00590

Built
1996
29 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
200
2021 count
Owner
County
County Highway Agency

About this bridge

Upper Calapooia DR over Washout Creek is a prestressed concrete box beam or girders - multiple carrying Upper Calapooia DR over Washout Creek in Linn County, Oregon. It was built in 1996, so it is 29 years old, younger 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 200 vehicles a day, roughly 80% of them trucks, projected to reach 240 by 2041. The structure is 85 ft (25.9 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesUpper Calapooia DR
CrossesWashout Creek
LocationMP 14.6
RouteCounty Highway C0000
StateOregon
Coordinates44.26492, -122.55611
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 geometry3: Basically intolerable, requiring high priority of corrective action
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

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length85 ft (25.9 m)
Longest span85 ft (25.9 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic240 by 2041
Trucks80%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Upper Calapooia DR over Washout Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Upper Calapooia DR over Washout Creek 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 August 2023.

How much traffic does Upper Calapooia DR over Washout Creek carry?

About 200 vehicles per day (2021 count), of which roughly 80% are trucks.

How long is Upper Calapooia DR over Washout Creek?

The structure is 85 ft (25.9 m) long with a longest span of 85 ft (25.9 m) and a deck 20 ft wide.

Who owns Upper Calapooia DR over Washout Creek?

It is owned by the County Highway Agency.