US Bridges

Cloverdale RD over Owyhee Canal

FairPosted for load

Malheur County, Oregon · 005 W Inter Clark Blvd · Structure no. 45C218098000044

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
420
2020 count
Owner
County
County Highway Agency

About this bridge

Cloverdale RD over Owyhee Canal is a prestressed concrete channel beam carrying Cloverdale RD over Owyhee Canal in Malheur County, Oregon. It was built in 1971, so it is 54 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. Its operating status is: posted for load restriction.

It carries about 420 vehicles a day, roughly 10% of them trucks, projected to reach 485 by 2025. The structure is 25 ft (7.6 m) long and 26 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesCloverdale RD
CrossesOwyhee Canal
Location005 W Inter Clark Blvd
RouteCounty Highway C0980
CountyMalheur County
StateOregon
Coordinates43.8697, -117.0353
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2020)
Projected traffic485 by 2025
Trucks10%
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

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 Cloverdale RD over Owyhee Canal built?

It was built in 1971, making it 54 years old in 2025.

What condition is Cloverdale RD over Owyhee 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 October 2023.

How much traffic does Cloverdale RD over Owyhee Canal carry?

About 420 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Cloverdale RD over Owyhee Canal?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 26 ft wide.

Who owns Cloverdale RD over Owyhee Canal?

It is owned by the County Highway Agency.