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)

SR 120 EB

Fair

Over: UP RR & ACE

10-SJ-120-R1.81, San Joaquin, CA

Built 1980 Load: 54.1 t ADT: 37,500

STANLEY ROAD

Fair

Over: LITTLEJOHNS CREEK

0.6 MI SOUTH OF SH4, San Joaquin, CA

Built 1974 Load: 54.1 t ADT: 132

ORANGE ST

Fair

Over: WOODBRIDGE ID MAIN CANAL

0.05 MI S OF INDIANA ST, San Joaquin, CA

Built 1980 Load: 55.7 t ADT: 95

DRAIS RD

Fair

Over: NORTH BRANCH CHANNEL A

0.4 MI S COPPEROPOLIS RD, San Joaquin, CA

Built 1976 Load: 57.3 t ADT: 314

BLOSSOM ROAD

Fair

Over: BEAVER SLOUGH

1 MI N OF PELTIER, San Joaquin, CA

Built 1980 Load: 58.3 t ADT: 251

THORNTON ROAD

Good

Over: MOSHER SLOUGH

S DAVIS RD IN TX, San Joaquin, CA

Built 1931 Load: 16.2 t ADT: 26,616

ESCALON-BELLOTA RD

Good

Over: TEMPLE CREEK BRANCH

0.2 MI N OF SKIFF RD, San Joaquin, CA

Built 1926 Load: 16.2 t ADT: 2,194

GAWNE RD

Good

Over: DRAIN A

0.7 MI E MARIPOSA RD, San Joaquin, CA

Built 1935 Load: 16.2 t ADT: 427

WAGNER RD

Good

Over: SSJID CANAL

.01 MI N OF RIVER RD, San Joaquin, CA

Built 1928 Load: 16.2 t ADT: 328

MURPHY ROAD

Good

Over: DRAIN CANAL

2.8 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 16.2 t ADT: 520

HANSEN ROAD

Good

Over: CALIFORNIA AQUEDUCT

0.8 MI S OF W SCHULTE RD, San Joaquin, CA

Built 1965 Load: 17.5 t ADT: 1,932

PELTIER ROAD

Good

Over: MOKELUMNE RIVER

1.5 MI W LOWER SACRMTO RD, San Joaquin, CA

Built 1947 Load: 17.8 t ADT: 2,972

PACIFIC AVE

Good

Over: CALAVERAS RIVER

0.25 MI N FULTON ST, San Joaquin, CA

Built 1921 Load: 18.1 t ADT: 18,350

MARIPOSA ROAD

Good

Over: WEBER CREEK

0.8 MI W OF JACK TONE RD, San Joaquin, CA

Built 1934 Load: 18.1 t ADT: 4,138

CORD ROAD

Good

Over: BEAR CREEK BRANCH

0.2 MI S OF SR 12, San Joaquin, CA

Built 1978 Load: 18.5 t ADT: 50

ESCALON-BELLOTA RD

Good

Over: DUCK CREEK

0.4 MI NORTH OF S.H. 4, San Joaquin, CA

Built 1928 Load: 19.1 t ADT: 1,607

MARIPOSA ROAD

Good

Over: NORTH LITTLE JOHNS CREEK

0.5 MI W AUSTIN RD, San Joaquin, CA

Built 1934 Load: 20.1 t ADT: 3,500

MURPHY ROAD

Good

Over: ROADSIDE DRAIN

0.1 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 20.4 t ADT: 520

MURPHY ROAD

Good

Over: ROADSIDE DRAIN

0.7 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 20.4 t ADT: 520

MURPHY ROAD

Good

Over: IRRIGATION DITCH

1.0 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 20.4 t ADT: 520

DAVIS ROAD

Good

Over: KETTLEMAN SLOUGH

1.0 MI N OF 8 MILE ROAD, San Joaquin, CA

Built 1928 Load: 20.7 t ADT: 5,015

DR MLK JR BLVD

Good

Over: MORMON SLOUGH

0.3 MI EAST OF MARIPOSA, San Joaquin, CA

Built 1949 Load: 21.1 t ADT: 12,500

INTERSTATE 5 NB

Good

Over: FOURTEEN MILE SLOUGH

10-SJ-005-31.00-STKN, San Joaquin, CA

Built 1968 Load: 21.7 t ADT: 111,000

COTTA ROAD

Good

Over: UPLAND CANAL

1.0 MI W OF I-5, San Joaquin, CA

Built 1974 Load: 22.0 t ADT: 138

INTERSTATE 580 WB

Good

Over: CORRAL HOLLOW CREEK

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

Built 1966 Load: 22.4 t ADT: 16,000

STATE ROUTE 99

Good

Over: PIXLEY SLOUGH

10-SJ-099-26.86, San Joaquin, CA

Built 1930 Load: 22.7 t ADT: 60,500

STATE ROUTE 99

Good

Over: MOSHER SLOUGH

10-SJ-099-24.41, San Joaquin, CA

Built 1930 Load: 22.7 t ADT: 64,000

S ACCESS RD

Good

Over: N FK S LITTLEJOHNS CREEK

1 MI S MARIPOSA RD, San Joaquin, CA

Built 1954 Load: 22.7 t ADT: 3,202

STATE ROUTE 99 SB

Good

Over: STANISLAUS RIVER

10-SJ-099-0.00, San Joaquin, CA

Built 1903 Load: 23.0 t ADT: 53,500

STATE ROUTE 88

Good

Over: MOSHER SLOUGH

10-SJ-088-7.53, San Joaquin, CA

Built 1925 Load: 23.7 t ADT: 15,859

ELLIOT ROAD

Good

Over: MOKELUMNE RIVER

1.0 MI S PELTIER RD, San Joaquin, CA

Built 1955 Load: 23.7 t ADT: 2,513

AIRPORT WAY

Good

Over: NORTH LITTLE JOHNS CREEK

0.15 MI N INDUSTRIAL WAY, San Joaquin, CA

Built 1961 Load: 23.7 t ADT: 13,100

AUSTIN ROAD

Good

Over: S FK S LITTLEJOHNS CREEK

2 MI N FRENCH CAMP RD, San Joaquin, CA

Built 1969 Load: 24.0 t ADT: 594

PEARSON RD

Good

Over: PIXLEY SLOUGH

0.7 MI N MORSE RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 415

BUENA VISTA ROAD

Good

Over: MURPHY CREEK

2.1 MI EAST TO S.H. 88, San Joaquin, CA

Built 1960 Load: 24.3 t ADT: 91

KAISER ROAD

Good

Over: SOUTH BRANCH WEBER CREEK

0.5 MI S MARIPOSA RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 276

KAISER ROAD

Good

Over: NORTH BRANCH WEBER CREEK

0.2 MI S MARIPOSA RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 235

WAVERLY RD

Good

Over: CHANNEL B

0.2 MI N OF FLOOD RD, San Joaquin, CA

Built 1961 Load: 24.3 t ADT: 249

MICKE GROVE RD

Good

Over: PIXLEY CREEK

0.7 MI S ARMSTRONG RD, San Joaquin, CA

Built 1970 Load: 24.3 t ADT: 1,079

DUNCAN RD

Good

Over: CHANNEL B

0.3 MI N COPPEROPOLIS RD, San Joaquin, CA

Built 1963 Load: 24.3 t ADT: 353

INTERSTATE 5 SB

Good

Over: UP RAILROAD & FARM ROADS

10-SJ-005-10.65, San Joaquin, CA

Built 1971 Load: 24.6 t ADT: 12,450

INTERSTATE 5 NB

Good

Over: UP RAILROAD & FARM ROADS

10-SJ-005-10.65, San Joaquin, CA

Built 1971 Load: 24.6 t ADT: 11,000

LONE TREE RD

Good

Over: LONE TREE CREEK

2.2 MI W OF CO LINE, San Joaquin, CA

Built 1922 Load: 24.6 t ADT: 1,022

MARIPOSA ROAD

Good

Over: WEBER CREEK BRANCH

0.5 MI E JACK TONE RD, San Joaquin, CA

Built 1934 Load: 24.9 t ADT: 6,626

COPPEROPOLIS RD

Good

Over: MORMON SLOUGH

1.5 MI EAST MILTON RD, San Joaquin, CA

Built 1966 Load: 25.3 t ADT: 2,249

MARIPOSA ROAD

Good

Over: DUCK CREEK S BRANCH

0.8 MI S/E OF S.H. 99, San Joaquin, CA

Built 1934 Load: 25.6 t ADT: 5,449

AIRPORT WAY

Good

Over: NORTH BRANCH WEBER CREEK

JUST NORTH OF SPERRY, San Joaquin, CA

Built 1961 Load: 25.9 t ADT: 12,000

JACK TONE ROAD

Good

Over: PADDY CREEK NORTH

NEAR KETTLEMAN LANE, San Joaquin, CA

Built 1962 Load: 26.2 t ADT: 2,471

LONE TREE RD

Good

Over: LONE TREE CREEK

0.3 MI W OF STA CO LINE, San Joaquin, CA

Built 1922 Load: 26.2 t ADT: 1,022

MUNFORD AVENUE

Good

Over: DUCK CREEK S BRANCH

0.2 MI W OF E. MARIPOSA, San Joaquin, CA

Built 1964 Load: 26.6 t ADT: 323

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

Related

Browse all → | Rankings →
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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.