US Bridges

Little Vly RD C6 over Vale Main Canal

PoorPosted for load

Malheur County, Oregon · 037 MI E Inter FAS B497 · Structure no. 45C143069800372

Built
1978
47 years old
Condition
Poor
inspected October 2023
Type
Channel Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Little Vly RD C6 over Vale Main Canal is a prestressed concrete channel beam carrying Little Vly RD C6 over Vale Main Canal in Malheur County, Oregon. It was built in 1978, so it is 47 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 140 vehicles a day, roughly 10% of them trucks, projected to reach 162 by 2025. The structure is 50 ft (15.2 m) long and 24 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLittle Vly RD C6
CrossesVale Main Canal
Location037 MI E Inter FAS B497
RouteCounty Highway C0698
StateOregon
Coordinates43.88986, -117.54189
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic162 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$333,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Little Vly RD C6 over Vale Main Canal built?

It was built in 1978, making it 47 years old in 2025.

What condition is Little Vly RD C6 over Vale Main Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Little Vly RD C6 over Vale Main Canal carry?

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

How long is Little Vly RD C6 over Vale Main Canal?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns Little Vly RD C6 over Vale Main Canal?

It is owned by the County Highway Agency.