US Bridges

California Ave over Tom Paine Slough

Fair

San Joaquin County, California · 0.2 MI S of Canal Blvd · Structure no. 29C0314

Built
1957
68 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
78 ft
4 main spans
Daily traffic
748
2013 count
Owner
County
County Highway Agency

About this bridge

California Ave over Tom Paine Slough is a wood or timber stringer/multi-beam or girder carrying California Ave over Tom Paine Slough in San Joaquin County, California. It was built in 1957, so it is 68 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 748 vehicles a day, roughly 5% of them trucks, projected to reach 406 by 2046. The structure is 78 ft (23.7 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCalifornia Ave
CrossesTom Paine Slough
Location0.2 MI S of Canal Blvd
RouteCounty Highway 0
CountySan Joaquin County
StateCalifornia
Coordinates37.76685, -121.35636
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.1 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 15
Structure length78 ft (23.7 m)
Longest span19 ft (5.7 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic748 (2013)
Projected traffic406 by 2046
Trucks5%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was California Ave over Tom Paine Slough built?

It was built in 1957, making it 68 years old in 2025.

What condition is California Ave over Tom Paine 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 September 2024.

How much traffic does California Ave over Tom Paine Slough carry?

About 748 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is California Ave over Tom Paine Slough?

The structure is 78 ft (23.7 m) long with a longest span of 19 ft (5.7 m) and a deck 20 ft wide.

Who owns California Ave over Tom Paine Slough?

It is owned by the County Highway Agency.