US Bridges

Edith Avenue over Unnamed Slough

Fair

Tehama County, California · 1/4 MI S Finnell Ave · Structure no. 08C0244

Built
1940
85 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
500
2010 count
Owner
County
County Highway Agency

About this bridge

Edith Avenue over Unnamed Slough is a concrete continuous culvert carrying Edith Avenue over Unnamed Slough in Tehama County, California. It was built in 1940, so it is 85 years old, older 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 768 by 2042. The structure is 23 ft (7.1 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesEdith Avenue
CrossesUnnamed Slough
Location1/4 MI S Finnell Ave
RouteCounty Highway 0
Coordinates39.95333, -122.19746
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span10 ft (3.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2010)
Projected traffic768 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Edith Avenue over Unnamed Slough built?

It was built in 1940, making it 85 years old in 2025.

What condition is Edith Avenue over Unnamed Slough 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 November 2024.

How much traffic does Edith Avenue over Unnamed Slough carry?

About 500 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Edith Avenue over Unnamed Slough?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3.1 m) and a deck 26 ft wide.

Who owns Edith Avenue over Unnamed Slough?

It is owned by the County Highway Agency.