San Joaquin County, CA

666 public highway bridges

San Joaquin County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, San Joaquin County, California contains 666 public highway bridges. Roughly 25.5% are rated “Good,” 38.9% “Fair,” and 6.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

666

Total Bridges

25.5%

Good

38.9%

Fair

6.2%

Poor Condition

Condition Distribution

Good

25.5% (170)

Fair

38.9% (259)

Poor

6.2% (41)

All Bridges (666)

Sort:

STATE ROUTE 4 WB

Over: SPBR & GARFIELD AVE

10-SJ-004-R15.67-STKN, San Joaquin, CA

Built 1972 ADT: 510

STATE ROUTE 4 EB

Over: SPBR & GARFIELD AVE

10-SJ-004-R15.67-STKN, San Joaquin, CA

Built 1972 ADT: 510

INTERSTATE 5 SB

Over: INTERSTATE ROUTE 580

10-SJ-005-0.63L, San Joaquin, CA

Built 1971 ADT: 22,000

BLEWETT ROAD

Over: INTERSTATE ROUTE 5

10-SJ-005-2.46, San Joaquin, CA

Built 1971 ADT: 22,800

INTERSTATE 5 SB

Over: STATE ROUTE 132

10-SJ-005-3.42, San Joaquin, CA

Built 1971 ADT: 14,100

INTERSTATE 5 NB

Over: STATE ROUTE 132

10-SJ-005-3.42, San Joaquin, CA

Built 1971 ADT: 14,100

INTERSTATE 5 SB

Over: TURNER ROAD

10-SJ-005-41.66, San Joaquin, CA

Built 1979 ADT: 2,120

INTERSTATE 5 NB

Over: TURNER ROAD

10-SJ-005-41.66, San Joaquin, CA

Built 1979 ADT: 2,120

INTERSTATE 5 SB

Over: PELTIER ROAD

10-SJ-005-44.72, San Joaquin, CA

Built 1979 ADT: 1,930

INTERSTATE 5 NB

Over: PELTIER ROAD

10-SJ-005-44.71, San Joaquin, CA

Built 1979 ADT: 1,930

INTERSTATE 5 SB

Over: WALNUT GROVE ROAD

10-SJ-005-47.61, San Joaquin, CA

Built 1979 ADT: 3,340

INTERSTATE 5 NB

Over: WALNUT GROVE ROAD

10-SJ-005-47.60, San Joaquin, CA

Built 1979 ADT: 3,340

INTERSTATE 5 SB

Over: W120-S5 CONN RMP & UP RR

10-SJ-005-R14.80, San Joaquin, CA

Built 1971 ADT: 19,350

INTERSTATE 5 NB

Over: W120-S5 CONN RMP & UP RR

10-SJ-005-R14.82, San Joaquin, CA

Built 1971 ADT: 21,450

INTERSTATE 5 SB

Over: SAN JOAQUIN RIVER

10-SJ-005-R14.46, San Joaquin, CA

Built 1972 ADT: 2,013

I-5 NB & SR 120 EB

Over: SAN JOAQUIN RIVER

10-SJ-005-R14.46, San Joaquin, CA

Built 1971 ADT: 530

INTERSTATE 5 SB

Over: LATHROP RD

10-SJ-005-R17.52, San Joaquin, CA

Built 1971 ADT: 550

INTERSTATE 5 NB

Over: LATHROP RD

10-SJ-005-R17.52, San Joaquin, CA

Built 1971 ADT: 2,750

INTERSTATE 5 SB

Over: THORNTON ROAD

10-SJ-005-38.06, San Joaquin, CA

Built 1976 ADT: 3,080

INTERSTATE 5 NB

Over: THORNTON ROAD

10-SJ-005-38.06, San Joaquin, CA

Built 1976 ADT: 3,080

INTERSTATE 5 SB

Over: STATE ROUTE 12

10-SJ-005-39.55, San Joaquin, CA

Built 1979 ADT: 15,000

INTERSTATE 5 NB

Over: STATE ROUTE 12

10-SJ-005-39.55, San Joaquin, CA

Built 1979 ADT: 15,000

DURHAM FERRY RD

Over: INTERSTATE ROUTE 5

10-SJ-005-5.47, San Joaquin, CA

Built 1971 ADT: 22,800

INTERSTATE 5 SB

Over: CFNR & STATE ROUTE 33

10-SJ-005-6.41, San Joaquin, CA

Built 1971 ADT: 8,500

INTERSTATE 5 NB

Over: CFNR & STATE ROUTE 33

10-SJ-005-6.41, San Joaquin, CA

Built 1971 ADT: 1,600

LINNE ROAD

Over: INTERSTATE ROUTE 5

10-SJ-005-7.48, San Joaquin, CA

Built 1971 ADT: 22,000

KASSON ROAD

Over: INTERSTATE ROUTE 5

10-SJ-005-11.06, San Joaquin, CA

Built 1971 ADT: 22,000

11 ST-OLD RTE 205

Over: INTERSTATE ROUTE 5

10-SJ-005-R11.79, San Joaquin, CA

Built 1971 ADT: 22,000

STATE ROUTE 4

Over: CROSSTOWN FWY VIADUCT

10-SJ-004-R16.62-STKN, San Joaquin, CA

Built 1975 ADT: 4,000

UP RR,BNSF,AMTRAK

Over: ST RTE 12 (KETTLEMAN LN)

10-SJ-012-17.26-LOD, San Joaquin, CA

Built 1973 ADT: 21,900

SR 120 WB

Over: GUTHMILLER ROAD

10-SJ-120-R1.33, San Joaquin, CA

Built 1980 ADT: 9,350

SR 120 EB

Over: GUTHMILLER ROAD

10-SJ-120-R1.33, San Joaquin, CA

Built 1980 ADT: 9,350

SR 120 WB

Over: MCKINLEY AVE

10-SJ-120-R2.29, San Joaquin, CA

Built 1995 ADT: 1,782

SR 120 EB

Over: MCKINLEY AVE

10-SJ-120-R2.29, San Joaquin, CA

Built 1980 ADT: 1,782

AIRPORT WAY

Over: SR 120

10-SJ-120-R3.32-MTCA, San Joaquin, CA

Built 1980 ADT: 68,000

UNION ROAD

Over: ST RTE 120

10-SJ-120-R4.31-MTCA, San Joaquin, CA

Built 1980 ADT: 68,000

MAIN ST

Over: SR 120

10-SJ-120-R5.31-MTCA, San Joaquin, CA

Built 1980 ADT: 72,000

SR 120 WB

Over: SPRECKLES ROAD

10-SJ-120-R6.13-MTCA, San Joaquin, CA

Built 1995 ADT: 1,165

SR 120 EB

Over: SPRECKLES ROAD

10-SJ-120-R6.13-MTCA, San Joaquin, CA

Built 1980 ADT: 1,165

SR 120 WB

Over: UP RR & MOFFAT BLVD

10-SJ-120-R6.33, San Joaquin, CA

Built 1995 ADT: 5,400

SR 120 EB

Over: UP RR & MOFFAT BLVD

10-SJ-120-R6.36, San Joaquin, CA

Built 1980 ADT: 5,400

E120-N99, N99-W120

Over: STATE ROUTE 99

10-SJ-120-6.86, San Joaquin, CA

Built 1980 ADT: 83,000

INTERSTATE 205

Over: AQUEDUCT SERVICE RD

10-SJ-205-L0.01, San Joaquin, CA

Built 1966 ADT: 1

SR 4 WB

Over: AIRPORT WAY

10-SJ-004-R17.56-STKN, San Joaquin, CA

Built 1988 ADT: 13,580

STATE ROUTE 4 EB

Over: AIRPORT WAY

10-SJ-004-R17.56-STKN, San Joaquin, CA

Built 1988 ADT: 13,580

CCT RR

Over: STATE ROUTE 4

10-SJ-004-R18.13-STKN, San Joaquin, CA

Built 1992 ADT: 91,000

MAIN STREET

Over: SR 4

10-SJ-004-R18.06-STKN, San Joaquin, CA

Built 1992 ADT: 91,000

E ST

Over: SR 4

10-SJ-004-R18.52-STKN, San Joaquin, CA

Built 1992 ADT: 85,000

FILBERT ST

Over: SR 4

10-SJ-004-R18.77-STKN, San Joaquin, CA

Built 1992 ADT: 85,000

ROUTE 4 WB

Over: WILSON WAY

10-SJ-004-R17.71-STKN, San Joaquin, CA

Built 1992 ADT: 19,450

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.