US Bridges

Or 31 (hwy 019) over Chewaucan River Gravel

Fair

Lake County, Oregon · 181 MI S Paisley · Structure no. 00571A019 11650

Built
1965
60 years old
Condition
Fair
inspected January 2025
Type
Slab
Prestressed Concrete
Length
150 ft
3 main spans
Daily traffic
738
2022 count
Owner
State
State Highway Agency

About this bridge

Or 31 (hwy 019) over Chewaucan River Gravel is a prestressed concrete slab carrying Or 31 (hwy 019) over Chewaucan River Gravel in Lake County, Oregon. It was built in 1965, so it is 60 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 738 vehicles a day, roughly 38% of them trucks, projected to reach 750 by 2042. The structure is 150 ft (45.7 m) long and 38 ft wide. If it were closed, the detour would be 25.5 mi (41 km).

Location

Open in Google Maps
CarriesOr 31 (hwy 019)
CrossesChewaucan River Gravel
Location181 MI S Paisley
RouteState Highway 31
CountyLake County
StateOregon
Coordinates42.54123, -120.29762
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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 alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span50 ft (15.2 m)
Deck width38 ft (11.6 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic738 (2022)
Projected traffic750 by 2042
Trucks38%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed25.5 mi (41 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 31 (hwy 019) over Chewaucan River Gravel built?

It was built in 1965, making it 60 years old in 2025.

What condition is Or 31 (hwy 019) over Chewaucan River Gravel 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 January 2025.

How much traffic does Or 31 (hwy 019) over Chewaucan River Gravel carry?

About 738 vehicles per day (2022 count), of which roughly 38% are trucks.

How long is Or 31 (hwy 019) over Chewaucan River Gravel?

The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 38 ft wide.

Who owns Or 31 (hwy 019) over Chewaucan River Gravel?

It is owned by the State Highway Agency.