US Bridges

Or 201 (hwy 490) over Irrigation Canal

Fair

Malheur County, Oregon · 018 MI W Ore Idaho LN · Structure no. 07071 450Y02048

Built
1947
78 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
500
2022 count
Owner
State
State Highway Agency

About this bridge

Or 201 (hwy 490) over Irrigation Canal is a concrete continuous culvert carrying Or 201 (hwy 490) over Irrigation Canal in Malheur County, Oregon. It was built in 1947, so it is 78 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 500 vehicles a day, roughly 35% of them trucks, projected to reach 530 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesOr 201 (hwy 490)
CrossesIrrigation Canal
Location018 MI W Ore Idaho LN
RouteState Highway 201
CountyMalheur County
StateOregon
Coordinates43.63, -117.06028
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic530 by 2042
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Or 201 (hwy 490) over Irrigation Canal built?

It was built in 1947, making it 78 years old in 2025.

What condition is Or 201 (hwy 490) over Irrigation Canal 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 November 2023.

How much traffic does Or 201 (hwy 490) over Irrigation Canal carry?

About 500 vehicles per day (2022 count), of which roughly 35% are trucks.

How long is Or 201 (hwy 490) over Irrigation Canal?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Or 201 (hwy 490) over Irrigation Canal?

It is owned by the State Highway Agency.