US Bridges

U.S. Highway 395 over Long Valley Creek

Good

Lassen County, California · 02-LAS-395-26.19 · Structure no. 07 0057

Built
1946
79 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
5,500
2009 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 395 over Long Valley Creek is a concrete continuous culvert carrying U.S. Highway 395 over Long Valley Creek in Lassen County, California. It was built in 1946, so it is 79 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 5,500 vehicles a day, roughly 18% of them trucks, projected to reach 7,524 by 2040. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesU.S. Highway 395
CrossesLong Valley Creek
Location02-LAS-395-26.19
RouteU.S. Route 395
Coordinates40.05169, -120.12634
Functional classRural Principal Arterial - Other

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
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 spans3
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2009)
Projected traffic7,524 by 2040
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 U.S. Highway 395 over Long Valley Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is U.S. Highway 395 over Long Valley Creek 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 2023.

How much traffic does U.S. Highway 395 over Long Valley Creek carry?

About 5,500 vehicles per day (2009 count), of which roughly 18% are trucks.

How long is U.S. Highway 395 over Long Valley Creek?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns U.S. Highway 395 over Long Valley Creek?

It is owned by the State Highway Agency.