US Bridges

M. Johns Road over Wildhorse Creek

FairPosted for load

Umatilla County, Oregon · 0.1 MI E Wildhorse CR RD · Structure no. 18102 00059C403

Built
1993
32 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
56
2020 count
Owner
County
County Highway Agency

About this bridge

M. Johns Road over Wildhorse Creek is a steel stringer/multi-beam or girder carrying M. Johns Road over Wildhorse Creek in Umatilla County, Oregon. It was built in 1993, so it is 32 years old, younger 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 5 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 10% of them trucks, projected to reach 65 by 2025. The structure is 36 ft (11 m) long and 26 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesM. Johns Road
CrossesWildhorse Creek
Location0.1 MI E Wildhorse CR RD
RouteCounty Highway 0
CountyUmatilla County
StateOregon
Coordinates45.77549, -118.45445
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2020)
Projected traffic65 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 M. Johns Road over Wildhorse Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is M. Johns Road over Wildhorse 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 M. Johns Road over Wildhorse Creek carry?

About 56 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is M. Johns Road over Wildhorse Creek?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 26 ft wide.

Who owns M. Johns Road over Wildhorse Creek?

It is owned by the County Highway Agency.