US Bridges

HWY 380 over South Fk Crooked River

FairPosted for load

Crook County, Oregon · 169 MI W Paulina · Structure no. 08702 380 03873

Built
1961
64 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
188
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 380 over South Fk Crooked River is a concrete continuous tee beam carrying HWY 380 over South Fk Crooked River in Crook County, Oregon. It was built in 1961, so it is 64 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. Its operating status is: posted for other load-capacity restriction.

It carries about 188 vehicles a day, roughly 44% of them trucks, projected to reach 210 by 2042. The structure is 120 ft (36.6 m) long and 31 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

CarriesHWY 380
CrossesSouth Fk Crooked River
Location169 MI W Paulina
RouteState Highway 380
StateOregon
Coordinates44.11423, -120.24222
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic188 (2022)
Projected traffic210 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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 HWY 380 over South Fk Crooked River built?

It was built in 1961, making it 64 years old in 2025.

What condition is HWY 380 over South Fk Crooked River 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 April 2023.

How much traffic does HWY 380 over South Fk Crooked River carry?

About 188 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is HWY 380 over South Fk Crooked River?

The structure is 120 ft (36.6 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns HWY 380 over South Fk Crooked River?

It is owned by the State Highway Agency.