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:

MILTON ROAD

Over: CHANNEL A

0.5 MI W OF FINE RD, San Joaquin, CA

Built 1927 Load: 15.6 t ADT: 301

SEXTON RD

Over: SSJID CANAL

0.2 MI N OF RIVER RD, San Joaquin, CA

Built 1941 Load: 15.6 t ADT: 210

KOSTER RD

Over: HOSPITAL CREEK OVERFLOW

0.5 MI N GAFFERY RD, San Joaquin, CA

Built 1947 Load: 15.6 t ADT: 390

BOLLEA ROAD

Over: BEAR CREEK

NEAR CALAVERAS CO LINE, San Joaquin, CA

Built 1997 Load: 15.6 t ADT: 26

GAWNE ROAD

Over: DRAIN B

0.3 MI E NELSON RD, San Joaquin, CA

Built 1935 Load: 16.2 t ADT: 709

MESSICK ROAD

Over: MOSHER SLOUGH

0.6 MI W OF CLEMENTS RD, San Joaquin, CA

Built 1931 Load: 16.2 t ADT: 150

HENRY RD

Over: SSJID CANAL

AT N INTERSECT W RIVER RD, San Joaquin, CA

Built 1945 Load: 16.2 t ADT: 2,375

VAN ALLEN RD

Over: SSJID CANAL

0.2 MI N OF RIVER RD, San Joaquin, CA

Built 1928 Load: 16.2 t ADT: 240

CARROLTON ROAD

Over: SSJID CANAL

0.2 MI N OF RIVER RD, San Joaquin, CA

Built 1940 Load: 16.2 t ADT: 545

INTERSTATE 5 NB

Over: BEAVER SLOUGH

10-SJ-005-45.86, San Joaquin, CA

Built 1979 Load: 16.5 t ADT: 25,000

LAMMERS ROAD

Over: DELTA-MENDOTA CANAL

0.8 MI S VALPICO ROAD, San Joaquin, CA

Built 1950 Load: 16.8 t ADT: 1,439

EIGHT MILE ROAD

Over: WHITE SLOUGH (HONKER CUT

5 MI WEST OF I-5, San Joaquin, CA

Built 1936 Load: 17.2 t ADT: 958

WOODSON ROAD

Over: JAHANT SLOUGH

0.4 MI NE OF JAHANT & 99, San Joaquin, CA

Built 1930 Load: 17.2 t ADT: 700

KOSTER ROAD

Over: DELTA-MENDOTA CANAL

1.6 MI N GAFFERY RD, San Joaquin, CA

Built 1950 Load: 17.5 t ADT: 400

THORNTON ROAD

Over: BEAVER SLOUGH

1 MI N PELTIER ROAD, San Joaquin, CA

Built 1958 Load: 18.1 t ADT: 1,232

CORD ROAD

Over: BEAR CREEK BRANCH

.5 MI S OF SR 12, San Joaquin, CA

Built 1968 Load: 18.1 t ADT: 15

LONE TREE RD

Over: LONE TREE CREEK

1.4 MI WEST MURPHY RD, San Joaquin, CA

Built 1928 Load: 18.5 t ADT: 1,104

MACARTHUR DRIVE

Over: DELTA-MENDOTA CANAL

2.6 MI S LINNE ROAD, San Joaquin, CA

Built 1950 Load: 19.1 t ADT: 2,165

ESCALON-BELLOTA RD

Over: TEMPLE CREEK

NORTH OF SKIFF RD, San Joaquin, CA

Built 1925 Load: 19.4 t ADT: 2,194

CORRAL HOLLOW ROAD

Over: DELTA-MENDOTA CANAL

1.5 MI N OF I-580, San Joaquin, CA

Built 1947 Load: 19.4 t ADT: 1,006

TRACY BOULEVARD

Over: GRANT LINE CANAL

3 MI N OF I 205, San Joaquin, CA

Built 1959 Load: 20.1 t ADT: 4,513

INTERSTATE 5

Over: MOKELUMNE RIVER

10-SJ-005-49.78, San Joaquin, CA

Built 1979 Load: 20.7 t ADT: 26,500

INTERSTATE 5

Over: MOKELUMNE RIVER

10-SJ-005-49.78, San Joaquin, CA

Built 1979 Load: 20.7 t ADT: 26,500

CALIFORNIA AVE

Over: TOM PAINE SLOUGH

0.2 MI S OF CANAL BLVD, San Joaquin, CA

Built 1957 Load: 20.7 t ADT: 748

VAN ALLEN ROAD

Over: TEMPLE CREEK N BRANCH

0.3 MI S OF GAWNE RD, San Joaquin, CA

Built 1927 Load: 21.1 t ADT: 641

THORNTON ROAD

Over: BEAVER SLOUGH

0.75 MI S KILE RD, San Joaquin, CA

Built 1941 Load: 21.4 t ADT: 1,232

VAN ALLEN RD

Over: LONE TREE CREEK

0.5 MI S OF LONE TREE RD, San Joaquin, CA

Built 1928 Load: 21.7 t ADT: 573

STATE ROUTE 99 NB

Over: MOKELUMNE RI,FRONTAGE R

10-SJ-099-31.72, San Joaquin, CA

Built 1930 Load: 22.0 t ADT: 29,500

INTERSTATE 205

Over: DELTA-MENDOTA CANAL

10-SJ-205-0.15, San Joaquin, CA

Built 1953 Load: 22.0 t ADT: 106,000

INTERSTATE 580 EB

Over: CORRAL HOLLOW CREEK

10-SJ-580-7.88, San Joaquin, CA

Built 1966 Load: 22.4 t ADT: 16,000

INTERSTATE 5 SB

Over: DOWNING AVENUE

10-SJ-005-R23.66, San Joaquin, CA

Built 1971 Load: 22.4 t ADT: 43,750

STATE ROUTE 99 SB

Over: CALAVERAS RIVER

10-SJ-099-21.79, San Joaquin, CA

Built 1930 Load: 23.0 t ADT: 35,500

RIO BLANCO ROAD

Over: TELEPHONE CUT

1.0 MI N. 8 MI RD, San Joaquin, CA

Built 1953 Load: 23.0 t ADT: 160

MANTHEY ROAD

Over: PARADISE CUT

1.2 MI S/W STEWART RD, San Joaquin, CA

Built 1932 Load: 23.3 t ADT: 50

HAM LANE

Over: PIXLEY SLOUGH

0.1MI S/O WEST LANE, San Joaquin, CA

Built 1926 Load: 23.7 t ADT: 457

INTERSTATE 5 SB

Over: ROTH ROAD

10-SJ-005-R19.58, San Joaquin, CA

Built 1971 Load: 24.0 t ADT: 84,500

STATE ROUTE 120

Over: SO SAN JOAQUIN IRR CANAL

10-SJ-120-21.17, San Joaquin, CA

Built 1938 Load: 24.3 t ADT: 18,200

INTERSTATE 5

Over: CARLTON AVE

10-SJ-005-27.66-STKN, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 113,000

EIGHT MILE ROAD

Over: PIXLEY CREEK

AT WEST LANE., San Joaquin, CA

Built 1963 Load: 24.3 t ADT: 14,064

WEST LANE

Over: PIXLEY SLOUGH

0.7 MI N/O EIGHT MI RD, San Joaquin, CA

Built 1962 Load: 24.3 t ADT: 12,583

WEST LANE

Over: WOODBRIDGE S MAIN CANAL

0.7 MI S ARMSTRONG RD, San Joaquin, CA

Built 1963 Load: 24.3 t ADT: 13,343

AIRPORT WAY

Over: S BR WEBER CREEK

1.2 MI N FRENCH CAMP RD, San Joaquin, CA

Built 1961 Load: 24.3 t ADT: 8,754

JACK TONE ROAD

Over: LONE TREE CREEK

1.2 MI N LONE TREE RD, San Joaquin, CA

Built 1962 Load: 24.3 t ADT: 1,761

COLLIER RD

Over: DRAIN DITCH

0.3 MI E OF SOWLES RD, San Joaquin, CA

Built 1972 Load: 24.3 t ADT: 1,084

ELLIOTT RD

Over: DRY CREEK OVERFLOW

1 MI N OF LIBERTY RD, San Joaquin, CA

Built 1972 Load: 24.3 t ADT: 1,120

ANGIER RD

Over: PIXLEY SLOUGH

0.4 MI N LIVE OAK RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 127

FURRY RD

Over: PIXLEY SLOUGH

0.7 MI N LIVE OAK RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 220

MICKE GROVE RD

Over: PIXLEY SLOUGH

0.5 MI S ARMSTRONG RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 1,079

STAGECOACH ROAD

Over: DUCK CREEK

0.1 MI N OF MARIPOSA RD, San Joaquin, CA

Built 1972 Load: 24.3 t ADT: 11,300

SEXTON RD

Over: LONE TREE CREEK

1.9 MI N OF S.H. 120, San Joaquin, CA

Built 1963 Load: 24.3 t ADT: 203

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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Compiled by PlainBridges, Independent data publisher

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.