US Bridges

State Route 36 over Jensen Slough

Good

Lassen County, California · 02-LAS-036-R26.36 · Structure no. 07 0065

Built
1964
61 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
15,300
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 36 over Jensen Slough is a concrete continuous culvert carrying State Route 36 over Jensen Slough in Lassen County, California. It was built in 1964, so it is 61 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 15,300 vehicles a day, roughly 5% of them trucks, projected to reach 24,853 by 2038. The structure is 26 ft (7.9 m) long and 109 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesState Route 36
CrossesJensen Slough
Location02-LAS-036-R26.36
RouteState Highway 36
Coordinates40.40777, -120.634
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span11 ft (3.5 m)
Deck width109 ft (33.2 m)
Roadway width93 ft (28.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,300 (2009)
Projected traffic24,853 by 2038
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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 36 over Jensen Slough built?

It was built in 1964, making it 61 years old in 2025.

What condition is State Route 36 over Jensen Slough 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 May 2021.

How much traffic does State Route 36 over Jensen Slough carry?

About 15,300 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is State Route 36 over Jensen Slough?

The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.5 m) and a deck 109 ft wide.

Who owns State Route 36 over Jensen Slough?

It is owned by the State Highway Agency.