US Bridges

Center ST over Stockton Channel

Poor

San Joaquin County, California · N of Weber ST · Structure no. 29C0189

Built
1949
76 years old
Condition
Poor
inspected January 2025
Type
Slab
Concrete Continuous
Length
168 ft
11 main spans
Daily traffic
7,000
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Center ST over Stockton Channel is a concrete continuous slab carrying Center ST over Stockton Channel in San Joaquin County, California. It was built in 1949, so it is 76 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 7,000 vehicles a day, roughly 5% of them trucks, projected to reach 9,024 by 2045. The structure is 168 ft (51.2 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCenter ST
CrossesStockton Channel
LocationN of Weber ST
RouteCity Street 0
Coordinates37.95378, -121.2913
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be 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 rating46.1 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadH 20
Structure length168 ft (51.2 m)
Longest span15 ft (4.6 m)
Deck width82 ft (24.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2017)
Projected traffic9,024 by 2045
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.9 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Center ST over Stockton Channel built?

It was built in 1949, making it 76 years old in 2025.

What condition is Center ST over Stockton Channel in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.

How much traffic does Center ST over Stockton Channel carry?

About 7,000 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Center ST over Stockton Channel?

The structure is 168 ft (51.2 m) long with a longest span of 15 ft (4.6 m) and a deck 82 ft wide.

Who owns Center ST over Stockton Channel?

It is owned by the City or Municipal Highway Agency.