US Bridges

Lake California DR over Unnamed Stream

Fair

Tehama County, California · 0.8 MI East of I-5 · Structure no. 08C0370

Built
2009
16 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
1,695
2010 count
Owner
County
County Highway Agency

About this bridge

Lake California DR over Unnamed Stream is a concrete continuous culvert carrying Lake California DR over Unnamed Stream in Tehama County, California. It was built in 2009, so it is 16 years old, younger 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 5 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 1,695 vehicles a day, roughly 2% of them trucks, projected to reach 3,144 by 2042. The structure is 45 ft (13.7 m) long and 64 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesLake California DR
CrossesUnnamed Stream
Location0.8 MI East of I-5
RouteCounty Highway 0
CountyTehama County
StateCalifornia
Coordinates40.36235, -122.28083
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span14 ft (4.3 m)
Deck width64 ft (19.5 m)
Roadway width61 ft (18.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,695 (2010)
Projected traffic3,144 by 2042
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lake California DR over Unnamed Stream built?

It was built in 2009, making it 16 years old in 2025.

What condition is Lake California DR over Unnamed Stream 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 February 2024.

How much traffic does Lake California DR over Unnamed Stream carry?

About 1,695 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Lake California DR over Unnamed Stream?

The structure is 45 ft (13.7 m) long with a longest span of 14 ft (4.3 m) and a deck 64 ft wide.

Who owns Lake California DR over Unnamed Stream?

It is owned by the County Highway Agency.