US Bridges

Carolyn Weston Blv over French Camp Slough

Fair

San Joaquin County, California · 0.7 MI West of Manthey RD · Structure no. 29C0407

Built
1997
28 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
352 ft
8 main spans
Daily traffic
16,700
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Carolyn Weston Blv over French Camp Slough is a concrete continuous slab carrying Carolyn Weston Blv over French Camp Slough in San Joaquin County, California. It was built in 1997, so it is 28 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 16,700 vehicles a day, roughly 3% of them trucks, projected to reach 20,445 by 2045. The structure is 352 ft (107.3 m) long and 78 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCarolyn Weston Blv
CrossesFrench Camp Slough
Location0.7 MI West of Manthey RD
RouteCity Street 0
CountySan Joaquin County
StateCalifornia
Coordinates37.91264, -121.29251
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length352 ft (107.3 m)
Longest span148 ft (45.1 m)
Deck width78 ft (23.7 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,700 (2013)
Projected traffic20,445 by 2045
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Carolyn Weston Blv over French Camp Slough built?

It was built in 1997, making it 28 years old in 2025.

What condition is Carolyn Weston Blv over French Camp 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 February 2025.

How much traffic does Carolyn Weston Blv over French Camp Slough carry?

About 16,700 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Carolyn Weston Blv over French Camp Slough?

The structure is 352 ft (107.3 m) long with a longest span of 148 ft (45.1 m) and a deck 78 ft wide.

Who owns Carolyn Weston Blv over French Camp Slough?

It is owned by the City or Municipal Highway Agency.