US Bridges

Sixes River Road over Elephant Rock Creek

Fair

Curry County, Oregon · 10 MI NE 97465 · Structure no. 061105000001048

Built
1955
70 years old
Condition
Fair
inspected June 2024
Type
Frame
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Sixes River Road over Elephant Rock Creek is a concrete continuous frame carrying Sixes River Road over Elephant Rock Creek in Curry County, Oregon. It was built in 1955, so it is 70 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 130 ft (39.6 m) long and 17 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesSixes River Road
CrossesElephant Rock Creek
Location10 MI NE 97465
RouteFederal Lands Road 52010
CountyCurry County
StateOregon
Coordinates42.80506, -124.32206
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length130 ft (39.6 m)
Longest span64 ft (19.5 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 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 Sixes River Road over Elephant Rock Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Sixes River Road over Elephant Rock 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 June 2024.

How much traffic does Sixes River Road over Elephant Rock Creek carry?

About 50 vehicles per day (latest count).

How long is Sixes River Road over Elephant Rock Creek?

The structure is 130 ft (39.6 m) long with a longest span of 64 ft (19.5 m) and a deck 17 ft wide.

Who owns Sixes River Road over Elephant Rock Creek?

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