US Bridges

Evergreen RD over Warren Creek

Fair

Calaveras County, California · 0.7 MI S of Southworth RD · Structure no. 30C0072

Built
1938
87 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
237
2011 count
Owner
County
County Highway Agency

About this bridge

Evergreen RD over Warren Creek is a concrete continuous slab carrying Evergreen RD over Warren Creek in Calaveras County, California. It was built in 1938, so it is 87 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 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 237 vehicles a day, roughly 1% of them trucks, projected to reach 247 by 2047. The structure is 44 ft (13.4 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesEvergreen RD
CrossesWarren Creek
Location0.7 MI S of Southworth RD
RouteCounty Highway 0
CountyCalaveras County
StateCalifornia
Coordinates38.13827, -120.91329
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic237 (2011)
Projected traffic247 by 2047
Trucks1%
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 Evergreen RD over Warren Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is Evergreen RD over Warren Creek 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 2025.

How much traffic does Evergreen RD over Warren Creek carry?

About 237 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Evergreen RD over Warren Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m) and a deck 19 ft wide.

Who owns Evergreen RD over Warren Creek?

It is owned by the County Highway Agency.