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)

ARCH ROAD

Fair

Over: WEBER CREEK

0.3 MI W OF NEWCASTLE, San Joaquin, CA

Built 1966 Load: 24.3 t ADT: 6,200

PEARSON ROAD

Fair

Over: PIXLEY CREEK

0.6 MI N EIGHT MILE RD, San Joaquin, CA

Built 1966 Load: 24.3 t ADT: 415

LOWER SACRAMENTO R

Fair

Over: WINEDRAW SLOUGH

JUST SOUTH EIGHT MILE RD, San Joaquin, CA

Built 1957 Load: 24.3 t ADT: 11,122

INTERSTATE 5

Fair

Over: BUENA VISTA UC

10-SJ-005-27.28-STKN, San Joaquin, CA

Built 1970 Load: 24.6 t ADT: 113,000

LOWER SACRAMENTO R

Fair

Over: MOKELUMNE RIVER OVERFLOW

0.7 MI N TURNER RD, San Joaquin, CA

Built 1969 Load: 24.6 t ADT: 9,943

CAROLYN WESTON BLV

Fair

Over: FRENCH CAMP SLOUGH

0.7 MI WEST OF MANTHEY RD, San Joaquin, CA

Built 1997 Load: 24.6 t ADT: 16,700

BLEWETT ROAD

Fair

Over: CALIFORNIA AQUEDUCT

1.3 MI W KOSTER RD, San Joaquin, CA

Built 1967 Load: 24.9 t ADT: 200

STATE ROUTE 4

Fair

Over: PRIVATE ACCESS

10-SJ-004-14.22, San Joaquin, CA

Built 1933 Load: 25.3 t ADT: 19,950

INTERSTATE 205

Fair

Over: SUGAR SPUR RR

10-SJ-205-R7.85-TRA, San Joaquin, CA

Built 1970 Load: 25.3 t ADT: 47,500

FRAIZER ROAD

Fair

Over: MOSHER CREEK

1.5 MI W OF CLEMENTS RD, San Joaquin, CA

Built 1956 Load: 25.3 t ADT: 221

MCKINLEY ROAD

Fair

Over: N BR FRENCH CAMP SLOUGH

1.0 MI N FRENCH CAMP/RD, San Joaquin, CA

Built 1923 Load: 25.3 t ADT: 4,300

STATE ROUTE 99 SB

Fair

Over: LONE TREE SLOUGH

10-SJ-099-11.80, San Joaquin, CA

Built 1955 Load: 25.9 t ADT: 85,000

MOUNTAIN HOUSE RD

Fair

Over: CALIFORNIA AQUEDUCT

0.1 MI S SCHULTE RD, San Joaquin, CA

Built 1967 Load: 25.9 t ADT: 4,403

LOWER SAC RD

Fair

Over: PIXLEY SLOUGH

N OF 8 MILE RD, San Joaquin, CA

Built 1926 Load: 26.2 t ADT: 11,122

STATE ROUTE 88

Fair

Over: CALAVERAS RIVER

10-SJ-088-6.10, San Joaquin, CA

Built 1947 Load: 26.6 t ADT: 6,700

TRACY BLVD

Fair

Over: CALIFORNIA AQUEDUCT

2.5 MI S OF UNNE RD, San Joaquin, CA

Built 1967 Load: 26.6 t ADT: 1,589

BRENNAN RD

Fair

Over: LONE TREE CREEK

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

Built 1926 Load: 26.9 t ADT: 289

STATE ROUTE 26

Fair

Over: DUCK CREEK

10-SJ-026-16.87, San Joaquin, CA

Built 1984 Load: 27.2 t ADT: 5,200

STATE ROUTE 4

Fair

Over: SAN JOAQUIN RIVER

10-SJ-004-14.15, San Joaquin, CA

Built 1933 Load: 27.2 t ADT: 19,950

STATE ROUTE 88

Fair

Over: BEAR CREEK

10-SJ-088-8.91, San Joaquin, CA

Built 1964 Load: 27.2 t ADT: 8,850

MARLETTE ROAD

Fair

Over: PIXLEY SLOUGH

S OF 8 MI RD, E OF RR TRK, San Joaquin, CA

Built 2007 Load: 27.5 t ADT: 2,000

MCKINLEY RD

Fair

Over: FRENCH CAMP SLOUGH

0.3 MI NE FRENCH CAMP RD, San Joaquin, CA

Built 1970 Load: 27.9 t ADT: 3,303

ESCALON-BELLOTA RD

Fair

Over: LITTLEJOHNS CREEK

0.3 MI SOUTH OF S.H. 4, San Joaquin, CA

Built 1948 Load: 27.9 t ADT: 3,681

WEST LANE

Fair

Over: MOSHER SLOUGH

0.5 MI N HAMMER LANE, San Joaquin, CA

Built 1966 Load: 27.9 t ADT: 27,300

N5-MARCH LN OFFRMP

Fair

Over: EBMUD AQUEDUCT

10-SJ-005-29.83, San Joaquin, CA

Built 1970 Load: 28.2 t ADT: 10,800

CHRISMAN RD

Fair

Over: CALIFORNIA AQUEDUCT

0.5 MI N OF S.H. 132, San Joaquin, CA

Built 1965 Load: 28.5 t ADT: 1,000

INTERSTATE 5 NB

Fair

Over: PARADISE CUT

10-SJ-005-R13.01, San Joaquin, CA

Built 1969 Load: 28.8 t ADT: 71,500

W120-S5 CONNECTOR

Fair

Over: SAN JOAQUIN RIVER 03

10-SJ-005-R14.16, San Joaquin, CA

Built 1947 Load: 29.2 t ADT: 37,500

INTERSTATE 205

Fair

Over: SUGAR SPUR RR

10-SJ-205-R7.85-TRA, San Joaquin, CA

Built 1970 Load: 29.2 t ADT: 47,500

5N -132E CONNECTOR

Fair

Over: DELTA-MENDOTA CANAL

10-SJ-005-3.27, San Joaquin, CA

Built 1971 Load: 29.5 t ADT: 5,000

CALIFORNIA STREET

Fair

Over: MORMON SLOUGH

SOUTH HAZLETON AVE, San Joaquin, CA

Built 1958 Load: 29.5 t ADT: 4,700

TULLY ROAD

Fair

Over: NORTH BRANCH PADDY CREEK

0.2 MI N SARGENT RD, San Joaquin, CA

Built 1971 Load: 29.8 t ADT: 403

STATE ROUTE 99

Fair

Over: FRENCH CAMP SLOUGH

10-SJ-099-12.33, San Joaquin, CA

Built 1955 Load: 30.5 t ADT: 35,250

MILTON ROAD

Fair

Over: CHANNEL B

0.9 MI E DUNCAN RD, San Joaquin, CA

Built 1968 Load: 30.5 t ADT: 301

MAC ARTHUR DR

Fair

Over: CORRAL HOLLOW CREEK

1.1 MI S LINNE RD, San Joaquin, CA

Built 1967 Load: 30.5 t ADT: 2,165

STATE ROUTE 12

Fair

Over: SOUTH BRANCH MAIN CANAL

10-SJ-012-16.29-LOD, San Joaquin, CA

Built 1944 Load: 30.8 t ADT: 21,900

INTERSTATE 205 EB

Fair

Over: EL RANCHO ROAD

10-SJ-205-R10.48, San Joaquin, CA

Built 1970 Load: 30.8 t ADT: 48,500

INTERSTATE 5

Fair

Over: ANDERSON STREET

10-SJ-005-25.64-STKN, San Joaquin, CA

Built 1971 Load: 30.8 t ADT: 87,500

INTERSTATE 5 NB

Fair

Over: ANDERSON STREET

10-SJ-005-25.64-STKN, San Joaquin, CA

Built 1971 Load: 30.8 t ADT: 43,750

WALNUT GROVE ROAD

Fair

Over: SOUTH FORK MOKELUMNE RIV

3.3 MI WEST OF I 5, San Joaquin, CA

Built 1958 Load: 30.8 t ADT: 2,987

SONORA RD

Fair

Over: ROCK CREEK

1.5 MI SOUTHEAST S.H. 4, San Joaquin, CA

Built 1970 Load: 30.8 t ADT: 196

JACK TONE RD

Fair

Over: PADDY CREEK (MIDDLE)

0.5 MI N HARNEY LANE, San Joaquin, CA

Built 1962 Load: 30.8 t ADT: 2,311

AIRPORT WAY

Fair

Over: DUCK CREEK

1 MI N INDUSTRIAL DR, San Joaquin, CA

Built 1968 Load: 30.8 t ADT: 5,300

INTERSTATE 5 SB

Fair

Over: PARADISE CUT

10-SJ-005-R12.99, San Joaquin, CA

Built 1947 Load: 31.1 t ADT: 143,000

INTERSTATE 5 SB

Fair

Over: BEAR CREEK

10-SJ-005-34.26, San Joaquin, CA

Built 1975 Load: 31.1 t ADT: 38,500

INTERSTATE 5 SB

Fair

Over: WOODBRIDGE ROAD

10-SJ-005-42.67, San Joaquin, CA

Built 1979 Load: 31.1 t ADT: 26,500

BACON ISLAND ROAD

Fair

Over: MIDDLE RIVER

1.3 MI N/O W LOW JONES RD, San Joaquin, CA

Built 1995 Load: 31.1 t ADT: 480

EL DORADO ST

Fair

Over: CALAVERAS RIVER

0.5 MI N FULTON ST, San Joaquin, CA

Built 1962 Load: 31.1 t ADT: 32,411

DRAIS ROAD

Fair

Over: SOUTH BRANCH DUCK CREEK

STATE HIGHWAY 4, San Joaquin, CA

Built 1961 Load: 31.1 t ADT: 231

INTERSTATE 5 NB

Fair

Over: WOODBRIDGE ROAD

10-SJ-005-42.67, San Joaquin, CA

Built 1979 Load: 31.4 t ADT: 26,500
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.