US Bridges

China Peak Road over Sixes River

Good

Curry County, Oregon · 5MI N & 9MI E of 97465 · Structure no. 061105000001031

Built
1982
43 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
115 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

China Peak Road over Sixes River is a prestressed concrete stringer/multi-beam or girder carrying China Peak Road over Sixes River in Curry County, Oregon. It was built in 1982, so it is 43 years old, younger 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 115 ft (35.1 m) long and 17 ft wide.

CarriesChina Peak Road
CrossesSixes River
Location5MI N & 9MI E of 97465
RouteFederal Lands Road 52010
StateOregon
Coordinates42.80425, -124.32369
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating100.1 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span113 ft (34.4 m)
Deck width17 ft (5.2 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 closed—
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 China Peak Road over Sixes River built?

It was built in 1982, making it 43 years old in 2025.

What condition is China Peak Road over Sixes River 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 August 2023.

How much traffic does China Peak Road over Sixes River carry?

About 50 vehicles per day (latest count).

How long is China Peak Road over Sixes River?

The structure is 115 ft (35.1 m) long with a longest span of 113 ft (34.4 m) and a deck 17 ft wide.

Who owns China Peak Road over Sixes River?

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