US Bridges

Clark Blvd. over Owyhee Canal

Good

Malheur County, Oregon · 010 N Inter Columbia Ave · Structure no. 19920 085700422

Built
2005
20 years old
Condition
Good
inspected October 2023
Type
Slab
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
1,335
2020 count
Owner
County
County Highway Agency

About this bridge

Clark Blvd. over Owyhee Canal is a prestressed concrete slab carrying Clark Blvd. over Owyhee Canal in Malheur County, Oregon. It was built in 2005, so it is 20 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,335 vehicles a day, roughly 10% of them trucks, projected to reach 1,575 by 2025. The structure is 53 ft (16.2 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesClark Blvd.
CrossesOwyhee Canal
Location010 N Inter Columbia Ave
RouteCounty Highway C0857
CountyMalheur County
StateOregon
Coordinates43.90532, -117.02621
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length53 ft (16.2 m)
Longest span48 ft (14.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,335 (2020)
Projected traffic1,575 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Clark Blvd. over Owyhee Canal built?

It was built in 2005, making it 20 years old in 2025.

What condition is Clark Blvd. over Owyhee Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Clark Blvd. over Owyhee Canal carry?

About 1,335 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Clark Blvd. over Owyhee Canal?

The structure is 53 ft (16.2 m) long with a longest span of 48 ft (14.6 m) and a deck 32 ft wide.

Who owns Clark Blvd. over Owyhee Canal?

It is owned by the County Highway Agency.