US Bridges

HWY 380 over Beaver Creek

Fair

Crook County, Oregon · 521 MI SE Prineville · Structure no. 03326A380 05167

Built
1956
69 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
125
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 380 over Beaver Creek is a concrete continuous tee beam carrying HWY 380 over Beaver Creek in Crook County, Oregon. It was built in 1956, so it is 69 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 125 vehicles a day, roughly 44% of them trucks, projected to reach 140 by 2042. The structure is 110 ft (33.5 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesHWY 380
CrossesBeaver Creek
Location521 MI SE Prineville
RouteState Highway 380
CountyCrook County
StateOregon
Coordinates44.10511, -120.01955
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span44 ft (13.4 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2022)
Projected traffic140 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Beaver Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is HWY 380 over Beaver 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 April 2023.

How much traffic does HWY 380 over Beaver Creek carry?

About 125 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is HWY 380 over Beaver Creek?

The structure is 110 ft (33.5 m) long with a longest span of 44 ft (13.4 m) and a deck 31 ft wide.

Who owns HWY 380 over Beaver Creek?

It is owned by the State Highway Agency.