US Bridges

US101(HWY009) over Sixes River

Fair

Curry County, Oregon · 00.8 MI N HWY 250 JCT · Structure no. 00901C009 29575

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
500 ft
4 main spans
Daily traffic
4,463
2022 count
Owner
State
State Highway Agency

About this bridge

US101(HWY009) over Sixes River is a prestressed concrete continuous stringer/multi-beam or girder carrying US101(HWY009) over Sixes River in Curry County, Oregon. It was built in 1971, so it is 54 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 4,463 vehicles a day, roughly 16% of them trucks, projected to reach 4,600 by 2042. The structure is 500 ft (152.4 m) long and 51 ft wide. If it were closed, the detour would be 78.9 mi (127 km).

Location

Open in Google Maps
CarriesUS101(HWY009)
CrossesSixes River
Location00.8 MI N HWY 250 JCT
RouteU.S. Route 101
CountyCurry County
StateOregon
Coordinates42.81679, -124.48247
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length500 ft (152.4 m)
Longest span125 ft (38.1 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,463 (2022)
Projected traffic4,600 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed78.9 mi (127 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US101(HWY009) over Sixes River built?

It was built in 1971, making it 54 years old in 2025.

What condition is US101(HWY009) over Sixes River 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 May 2023.

How much traffic does US101(HWY009) over Sixes River carry?

About 4,463 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US101(HWY009) over Sixes River?

The structure is 500 ft (152.4 m) long with a longest span of 125 ft (38.1 m) and a deck 51 ft wide.

Who owns US101(HWY009) over Sixes River?

It is owned by the State Highway Agency.