US Bridges

A Street over Unnamed Drainage

Fair

Tehama County, California · 0.6 MI N of Kauffman Ave · Structure no. 08C0252

Built
1980
45 years old
Condition
Fair
inspected April 2022
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
304
2010 count
Owner
County
County Highway Agency

About this bridge

A Street over Unnamed Drainage is a concrete continuous culvert carrying A Street over Unnamed Drainage in Tehama County, California. It was built in 1980, so it is 45 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 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 304 vehicles a day, roughly 8% of them trucks, projected to reach 521 by 2044. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesA Street
CrossesUnnamed Drainage
Location0.6 MI N of Kauffman Ave
RouteCounty Highway 0
Coordinates40.13678, -122.09332
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum 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 spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2010)
Projected traffic521 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was A Street over Unnamed Drainage built?

It was built in 1980, making it 45 years old in 2025.

What condition is A Street over Unnamed Drainage 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 April 2022.

How much traffic does A Street over Unnamed Drainage carry?

About 304 vehicles per day (2010 count), of which roughly 8% are trucks.

How long is A Street over Unnamed Drainage?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns A Street over Unnamed Drainage?

It is owned by the County Highway Agency.