US Bridges

State Route 96 over Klamath River (orleans)

Good

Humboldt County, California · 01-HUM-096-38.57 · Structure no. 04 0069

Built
1966
59 years old
Condition
Good
inspected September 2024
Type
Suspension
Steel
Length
770 ft
3 main spans
Daily traffic
990
1998 count
Owner
State
State Highway Agency

About this bridge

State Route 96 over Klamath River (orleans) is a steel suspension carrying State Route 96 over Klamath River (orleans) in Humboldt County, California. It was built in 1966, so it is 59 years old, older than the California average of 54.8 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 990 vehicles a day, roughly 16% of them trucks, projected to reach 666 by 2046. The structure is 770 ft (234.7 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 96
CrossesKlamath River (orleans)
Location01-HUM-096-38.57
RouteState Highway 96
Coordinates41.30305, -123.53517
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating55.7 US tons
Inventory rating33.6 US tons

Structure

Structure typeSuspension
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length770 ft (234.7 m)
Longest span430 ft (131.1 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic990 (1998)
Projected traffic666 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible 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 Klamath River (orleans) built?

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

What condition is State Route 96 over Klamath River (orleans) 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 September 2024.

How much traffic does State Route 96 over Klamath River (orleans) carry?

About 990 vehicles per day (1998 count), of which roughly 16% are trucks.

How long is State Route 96 over Klamath River (orleans)?

The structure is 770 ft (234.7 m) long with a longest span of 430 ft (131.1 m) and a deck 34 ft wide.

Who owns State Route 96 over Klamath River (orleans)?

It is owned by the State Highway Agency.