US Bridges

Road over Sycan River

Fair

Klamath County, Oregon · No Data Entered · Structure no. 060201000001019

Built
1966
59 years old
Condition
Fair
inspected September 2024
Type
Frame
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
18
Owner
Federal
U.S. Forest Service

About this bridge

Road over Sycan River is a concrete continuous frame carrying Road over Sycan River in Klamath County, Oregon. It was built in 1966, so it is 59 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 18 vehicles a day, projected to reach 27 by 2045. The structure is 100 ft (30.5 m) long and 31 ft wide. If it were closed, the detour would be 41.6 mi (67 km).

CarriesRoad
CrossesSycan River
LocationNo Data Entered
RouteFederal Lands Road 27000
StateOregon
Coordinates42.71264, -121.18672
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating30 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckOther
Main spans3
Design loadOther
Structure length100 ft (30.5 m)
Longest span64 ft (19.5 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (—)
Projected traffic27 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41.6 mi (67 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 Road over Sycan River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Road over Sycan 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 September 2024.

How much traffic does Road over Sycan River carry?

About 18 vehicles per day (latest count).

How long is Road over Sycan River?

The structure is 100 ft (30.5 m) long with a longest span of 64 ft (19.5 m) and a deck 31 ft wide.

Who owns Road over Sycan River?

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