US Bridges

S Fork Road over Indian Creek

Fair

Siskiyou County, California · At Indian Crk RD · Structure no. 02C0229

Built
1965
60 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
104 ft
3 main spans
Daily traffic
58
2011 count
Owner
County
County Highway Agency

About this bridge

S Fork Road over Indian Creek is a concrete continuous tee beam carrying S Fork Road over Indian Creek in Siskiyou County, California. It was built in 1965, so it is 60 years old, older than the California average of 54.8 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 58 vehicles a day, roughly 5% of them trucks, projected to reach 85 by 2046. The structure is 104 ft (31.7 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesS Fork Road
CrossesIndian Creek
LocationAt Indian Crk RD
RouteCounty Highway 0
Coordinates41.88234, -123.42912
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length104 ft (31.7 m)
Longest span64 ft (19.5 m)
Deck width18 ft (5.5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2011)
Projected traffic85 by 2046
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 S Fork Road over Indian Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is S Fork Road over Indian 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 July 2024.

How much traffic does S Fork Road over Indian Creek carry?

About 58 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is S Fork Road over Indian Creek?

The structure is 104 ft (31.7 m) long with a longest span of 64 ft (19.5 m) and a deck 18 ft wide.

Who owns S Fork Road over Indian Creek?

It is owned by the County Highway Agency.