US Bridges

Pambrun Road over Wildhorse Creek

Fair

Umatilla County, Oregon · 0.23 MI N of HWY 11 · Structure no. 59C389073700023

Built
1964
61 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
247
2020 count
Owner
County
County Highway Agency

About this bridge

Pambrun Road over Wildhorse Creek is a steel stringer/multi-beam or girder carrying Pambrun Road over Wildhorse Creek in Umatilla County, Oregon. It was built in 1964, so it is 61 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 247 vehicles a day, roughly 15% of them trucks, projected to reach 262 by 2025. The structure is 41 ft (12.5 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPambrun Road
CrossesWildhorse Creek
Location0.23 MI N of HWY 11
RouteCounty Highway 0
StateOregon
Coordinates45.80876, -118.49706
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.
Substructure7 GoodSome minor problems.
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 statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247 (2020)
Projected traffic262 by 2025
Trucks15%
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 Pambrun Road over Wildhorse Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Pambrun 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 Pambrun Road over Wildhorse Creek carry?

About 247 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Pambrun Road over Wildhorse Creek?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns Pambrun Road over Wildhorse Creek?

It is owned by the County Highway Agency.