US Bridges

Sixes River Road over Dry Ravine

Good

Curry County, Oregon · 5MI N & 20MI E of 97465 · Structure no. 061105000001051

Built
1968
57 years old, rebuilt 1996
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
1 main span
Daily traffic
90
Owner
Federal
U.S. Forest Service

About this bridge

Sixes River Road over Dry Ravine is a steel stringer/multi-beam or girder carrying Sixes River Road over Dry Ravine in Curry County, Oregon. It was built in 1968 and reconstructed in 1996, so it is 57 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.

It carries about 90 vehicles a day, projected to reach 135 by 2045. The structure is 67 ft (20.4 m) long and 12 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesSixes River Road
CrossesDry Ravine
Location5MI N & 20MI E of 97465
RouteFederal Lands Road 52010
StateOregon
Coordinates42.78808, -124.21422
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 protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length67 ft (20.4 m)
Longest span63 ft (19.3 m)
Deck width12 ft (3.7 m)
Roadway width10 ft (3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (—)
Projected traffic135 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesOther
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 Sixes River Road over Dry Ravine built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1996.

What condition is Sixes River Road over Dry Ravine 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 June 2024.

How much traffic does Sixes River Road over Dry Ravine carry?

About 90 vehicles per day (latest count).

How long is Sixes River Road over Dry Ravine?

The structure is 67 ft (20.4 m) long with a longest span of 63 ft (19.3 m) and a deck 12 ft wide.

Who owns Sixes River Road over Dry Ravine?

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