US Bridges

Mckay Creek Road over South Fork Mckay Creek

FairPosted for load

Umatilla County, Oregon · 7.0 MI E of Shaw Road · Structure no. 59C034105001067

Built
1965
60 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
56
2020 count
Owner
County
County Highway Agency

About this bridge

Mckay Creek Road over South Fork Mckay Creek is a steel stringer/multi-beam or girder carrying Mckay Creek Road over South Fork Mckay Creek in Umatilla County, Oregon. It was built in 1965, so it is 60 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 56 vehicles a day, roughly 5% of them trucks, projected to reach 66 by 2025. The structure is 41 ft (12.5 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMckay Creek Road
CrossesSouth Fork Mckay Creek
Location7.0 MI E of Shaw Road
RouteCounty Highway 0
StateOregon
Coordinates45.50275, -118.6228
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 15
Structure length41 ft (12.5 m)
Longest span39 ft (11.9 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2020)
Projected traffic66 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Mckay Creek Road over South Fork Mckay Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Mckay Creek Road over South Fork Mckay Creek 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 July 2023.

How much traffic does Mckay Creek Road over South Fork Mckay Creek carry?

About 56 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Mckay Creek Road over South Fork Mckay Creek?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.9 m) and a deck 25 ft wide.

Who owns Mckay Creek Road over South Fork Mckay Creek?

It is owned by the County Highway Agency.