US Bridges

Sixes River RD over Edson Creek

GoodPosted for load

Curry County, Oregon · 4.3 MI E HWY 101 · Structure no. 15C004018400430

Built
1955
70 years old, rebuilt 1965
Condition
Good
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
590
2020 count
Owner
County
County Highway Agency

About this bridge

Sixes River RD over Edson Creek is a concrete continuous tee beam carrying Sixes River RD over Edson Creek in Curry County, Oregon. It was built in 1955 and reconstructed in 1965, 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 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 590 vehicles a day, roughly 5% of them trucks, projected to reach 665 by 2025. The structure is 101 ft (30.8 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSixes River RD
CrossesEdson Creek
Location4.3 MI E HWY 101
RouteCounty Highway 0A310
StateOregon
Coordinates42.81494, -124.41184
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment6: Equal to present minimum criteria
Operating rating16.1 US tons
Inventory rating12.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length101 ft (30.8 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2020)
Projected traffic665 by 2025
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Sixes River RD over Edson Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1965.

What condition is Sixes River RD over Edson 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 Sixes River RD over Edson Creek carry?

About 590 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Sixes River RD over Edson Creek?

The structure is 101 ft (30.8 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns Sixes River RD over Edson Creek?

It is owned by the County Highway Agency.