US Bridges

Brooks Road over Wildhorse Creek

GoodPosted for load

Umatilla County, Oregon · 0.1 MI S of HWY 11 · Structure no. 59C395067500032

Built
1960
65 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
33
2020 count
Owner
County
County Highway Agency

About this bridge

Brooks Road over Wildhorse Creek is a steel stringer/multi-beam or girder carrying Brooks Road over Wildhorse Creek in Umatilla County, Oregon. It was built in 1960, so it is 65 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 33 vehicles a day, roughly 5% of them trucks, projected to reach 38 by 2025. The structure is 37 ft (11.3 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBrooks Road
CrossesWildhorse Creek
Location0.1 MI S of HWY 11
RouteCounty Highway 0
StateOregon
Coordinates45.80492, -118.48319
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating10.7 US tons
Inventory rating8.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length37 ft (11.3 m)
Longest span33 ft (10.1 m)
Deck width24 ft (7.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2020)
Projected traffic38 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Brooks Road over Wildhorse Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Brooks Road over Wildhorse Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Brooks Road over Wildhorse Creek carry?

About 33 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Brooks Road over Wildhorse Creek?

The structure is 37 ft (11.3 m) long with a longest span of 33 ft (10.1 m) and a deck 24 ft wide.

Who owns Brooks Road over Wildhorse Creek?

It is owned by the County Highway Agency.