US Bridges

State Route 96 over Indian Creek

Fair

Siskiyou County, California · 02-SIS-096-41.02 · Structure no. 02 0049

Built
1962
63 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
330 ft
4 main spans
Daily traffic
1,000
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 96 over Indian Creek is a concrete continuous box beam or girders - multiple carrying State Route 96 over Indian Creek in Siskiyou County, California. It was built in 1962, so it is 63 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 1,000 vehicles a day, roughly 6% of them trucks, projected to reach 1,224 by 2046. The structure is 330 ft (100.5 m) long and 34 ft wide. If it were closed, the detour would be 92 mi (148 km).

CarriesState Route 96
CrossesIndian Creek
Location02-SIS-096-41.02
RouteState Highway 96
Coordinates41.79072, -123.37951
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating28.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length330 ft (100.5 m)
Longest span90 ft (27.4 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2015)
Projected traffic1,224 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed92 mi (148 km)
TollOn a free road
National Highway SystemNo

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 State Route 96 over Indian Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is State Route 96 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 September 2024.

How much traffic does State Route 96 over Indian Creek carry?

About 1,000 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is State Route 96 over Indian Creek?

The structure is 330 ft (100.5 m) long with a longest span of 90 ft (27.4 m) and a deck 34 ft wide.

Who owns State Route 96 over Indian Creek?

It is owned by the State Highway Agency.