US Bridges

Hay Canyon Road over Hay Canyon

Fair

Sherman County, Oregon · 2.6 MI S of HWY 206 · Structure no. 55C002062500506

Built
1919
106 years old, rebuilt 1981
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
34 ft
1 main span
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Hay Canyon Road over Hay Canyon is a concrete tee beam carrying Hay Canyon Road over Hay Canyon in Sherman County, Oregon. It was built in 1919 and reconstructed in 1981, so it is 106 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 140 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2025. The structure is 34 ft (10.4 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesHay Canyon Road
CrossesHay Canyon
Location2.6 MI S of HWY 206
RouteCounty Highway 0
CountySherman County
StateOregon
Coordinates45.48978, -120.61394
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
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic160 by 2025
Trucks10%
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

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 Hay Canyon Road over Hay Canyon built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1981.

What condition is Hay Canyon Road over Hay Canyon 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 August 2024.

How much traffic does Hay Canyon Road over Hay Canyon carry?

About 140 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Hay Canyon Road over Hay Canyon?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 40 ft wide.

Who owns Hay Canyon Road over Hay Canyon?

It is owned by the County Highway Agency.