US Bridges

Road over South Fork Umatilla

FairClosed to traffic

Umatilla County, Oregon · No Data Entered · Structure no. 061406000001010

Built
1958
67 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
54 ft
1 main span
Daily traffic
46
1989 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over South Fork Umatilla is a wood or timber stringer/multi-beam or girder carrying Road over South Fork Umatilla in Umatilla County, Oregon. It was built in 1958, so it is 67 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 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: closed to all traffic.

It carries about 46 vehicles a day, projected to reach 69 by 2045. The structure is 54 ft (16.6 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesRoad
CrossesSouth Fork Umatilla
LocationNo Data Entered
RouteFederal Lands Road 32000
CountyUmatilla County
StateOregon
Coordinates45.68779, -118.20543
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
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 alignment6: Equal to present minimum criteria
Operating rating47.1 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1 (+2 approach)
Design loadH 20
Structure length54 ft (16.6 m)
Longest span38 ft (11.6 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (1989)
Projected traffic69 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over South Fork Umatilla built?

It was built in 1958, making it 67 years old in 2025.

What condition is Road over South Fork Umatilla 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 August 2023.

How much traffic does Road over South Fork Umatilla carry?

About 46 vehicles per day (1989 count).

How long is Road over South Fork Umatilla?

The structure is 54 ft (16.6 m) long with a longest span of 38 ft (11.6 m) and a deck 16 ft wide.

Who owns Road over South Fork Umatilla?

It is owned by the U.S. Forest Service.