US Bridges

Yarrington Road over Grande Ronde River

PoorPosted for load

Union County, Oregon · Palmer Junc./Yarrington · Structure no. 61C16 049 01000

Built
1925
100 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
255 ft
2 main spans
Daily traffic
173
2020 count
Owner
County
County Highway Agency

About this bridge

Yarrington Road over Grande Ronde River is a steel truss - thru carrying Yarrington Road over Grande Ronde River in Union County, Oregon. It was built in 1925, so it is 100 years old, older 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 173 vehicles a day, projected to reach 203 by 2025. The structure is 255 ft (77.7 m) long and 16 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

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CarriesYarrington Road
CrossesGrande Ronde River
LocationPalmer Junc./Yarrington
RouteCounty Highway 0
CountyUnion County
StateOregon
Coordinates45.70188, -117.85258
Functional classRural Minor Collector

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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating12.5 US tons
Inventory rating9.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans2
Design loadUnknown
Structure length255 ft (77.7 m)
Longest span150 ft (45.7 m)
Deck width16 ft (4.8 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deck13 ft (4 m)

Traffic and service

Average daily traffic173 (2020)
Projected traffic203 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Yarrington Road over Grande Ronde River built?

It was built in 1925, making it 100 years old in 2025.

What condition is Yarrington Road over Grande Ronde River 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 September 2024.

How much traffic does Yarrington Road over Grande Ronde River carry?

About 173 vehicles per day (2020 count).

How long is Yarrington Road over Grande Ronde River?

The structure is 255 ft (77.7 m) long with a longest span of 150 ft (45.7 m) and a deck 16 ft wide.

Who owns Yarrington Road over Grande Ronde River?

It is owned by the County Highway Agency.