San Joaquin County, CA

666 public highway bridges

San Joaquin County Bridge Snapshot

San Joaquin County, California contains 666 public highway bridges in the FHWA National Bridge Inventory. Roughly 25.5% are rated “Good,” 38.9% “Fair,” 6.2% “Poor,” and 6.2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

666
Total Bridges
25.5%
Good
6.2%
Poor
6.2%
Structurally Deficient

Condition Distribution

Good
25.5% (170)
Fair
38.9% (259)
Poor
6.2% (41)
SD
6.2% (41)

All Bridges (666)

STATE ROUTE 26

Good

Over: CALAVERAS RIVER

10-SJ-026-15.30, San Joaquin, CA

Built 1952 Load: 41.8 t ADT: 5,200

WILSON WAY

Good

Over: MORMON SLOUGH

0.2 MI N DR MLK JR BLVD, San Joaquin, CA

Built 1964 Load: 41.8 t ADT: 22,900

INTERSTATE 5 NB

Good

Over: BEAR CREEK

10-SJ-005-34.25, San Joaquin, CA

Built 1975 Load: 42.1 t ADT: 48,000

LINN RD

Good

Over: NORTH BRANCH PADDY CREEK

0.4 MI S BRANDT RD, San Joaquin, CA

Built 1967 Load: 42.8 t ADT: 199

POCK LANE

Good

Over: DUCK CREEK

0.1 MI S OF LOOMIS AVE, San Joaquin, CA

Built 1963 Load: 43.1 t ADT: 1,688

INTERSTATE 580 EB

Good

Over: HOSPITAL CREEK

10-SJ-580-0.49, San Joaquin, CA

Built 1967 Load: 43.7 t ADT: 11,000

INTERSTATE 580 WB

Good

Over: HOSPITAL CREEK

10-SJ-580-0.48, San Joaquin, CA

Built 1967 Load: 43.7 t ADT: 11,000

DURHAM FERRY ROAD

Good

Over: BANTA-CARBONA IRR CANAL

0.3 MI E BIRD RD, San Joaquin, CA

Built 1947 Load: 44.1 t ADT: 495

KILE ROAD

Good

Over: BEAVER SLOUGH

3.2 MI N PELTIER RD, San Joaquin, CA

Built 1941 Load: 45.0 t ADT: 478

MARINERS DR

Good

Over: MOSHER SLOUGH

0.1 KM W OF RTE 5, San Joaquin, CA

Built 1975 Load: 45.0 t ADT: 3,300

ALPINE RD

Good

Over: CALAVERAS RIVER

0.2 MI S FOPPIANO LN, San Joaquin, CA

Built 1977 Load: 45.4 t ADT: 706

VAN ALLEN ROAD

Good

Over: SOUTH LITTLEJOHNS CREEK

1.4 MI S SH 4, San Joaquin, CA

Built 1973 Load: 45.7 t ADT: 350

PROUTY RD

Good

Over: GOOSE CREEK

2 MI N OF LIBERTY RD, San Joaquin, CA

Built 1981 Load: 46.3 t ADT: 50

INTERSTATE 580 EB

Good

Over: LONE TREE CREEK

10-SJ-580-1.70, San Joaquin, CA

Built 1967 Load: 47.3 t ADT: 11,000

INTERSTATE 580 WB

Good

Over: LONE TREE CREEK

10-SJ-580-1.69, San Joaquin, CA

Built 1967 Load: 47.3 t ADT: 11,000

FINE RD

Good

Over: CHANNEL B

0.2 MI S FLOOD RD, San Joaquin, CA

Built 1972 Load: 47.3 t ADT: 801

MESSICK ROAD

Good

Over: CALAVERAS RIVER

0.2 MI EAST OF DUNCAN RD, San Joaquin, CA

Built 1977 Load: 52.5 t ADT: 139

ELLIOTT RD

Good

Over: GOOSE CREEK

0.6 MI N OF LIBERTY RD, San Joaquin, CA

Built 1977 Load: 52.5 t ADT: 1,120

JACK TONE RD

Good

Over: NORTH FORK COYOTE CREEK

.4 MI N OF LIBERTY RD, San Joaquin, CA

Built 1959 Load: 55.1 t ADT: 117

TULLY ROAD

Good

Over: CALAVERAS RIVER

0.7 MI N 8 MI RD, San Joaquin, CA

Built 1973 Load: 55.7 t ADT: 268

ASHLEY RD

Good

Over: CALAVERAS RIVER

0.2 MI S FOPPIANO LANE, San Joaquin, CA

Built 1979 Load: 56.1 t ADT: 802

INTERSTATE 5 SB

Good

Over: FRENCH CAMP ROAD

10-SJ-005-R22.51, San Joaquin, CA

Built 1971 Load: 59.3 t ADT: 87,500

INTERSTATE 5 NB

Good

Over: FRENCH CAMP ROAD

10-SJ-005-R22.51, San Joaquin, CA

Built 1971 Load: 70.3 t ADT: 43,750

Blewett Road

Good

Over: Delta-Mendota Canal

0.84 MI W OF I5, San Joaquin, CA

Built 1948 Load: 71.9 t ADT: 200

SOLARI RANCH RD

Good

Over: CALAVERAS RIVER

0.5 MI N OF CHEROKEE RD, San Joaquin, CA

Built 1965 Load: 88.5 t ADT: 238

BUCKMAN RD

Poor

Over: DUCK CREEK

0.2 MI N OF SR 4, San Joaquin, CA

Built 1931 Load: 12.0 t ADT: 179

BIRD ROAD

Poor

Over: DELTA-MENDOTA CANAL

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

Built 1950 Load: 14.9 t ADT: 471

CHEROKEE RD

Poor

Over: STOCKTON DIVERTING CANAL

0.5 MI S/W OF S.H. 99, San Joaquin, CA

Built 1948 Load: 18.1 t ADT: 6,863

STATE ROUTE 4

Poor

Over: OLD RIVER

10-SJ-004-0.01, San Joaquin, CA

Built 1915 Load: 19.1 t ADT: 8,200

PEZZI RD

Poor

Over: CALAVERAS RIVER

0.8 MI S/O EIGHT MI RD, San Joaquin, CA

Built 1926 Load: 19.1 t ADT: 402

E205-N5 CONNECTOR

Poor

Over: PARADISE CUT

10-SJ-205-R13.11, San Joaquin, CA

Built 1970 Load: 20.4 t ADT: 21,500

MANTHEY ROAD

Poor

Over: SAN JOAQUIN RIVER

0.2 MI NE OF STEWART RD, San Joaquin, CA

Built 1926 Load: 21.1 t ADT: 750

AIRPORT WAY

Poor

Over: MORMON SLOUGH

0.2 MI N DR MLK JR BLVD, San Joaquin, CA

Built 1957 Load: 21.4 t ADT: 4,500

BIRD ROAD

Poor

Over: CALIFORNIA AQUEDUCT

0.5 MI N BLEWETT RD, San Joaquin, CA

Built 1966 Load: 21.7 t ADT: 3,491

BUCKMAN RD

Poor

Over: DUCK CREEK BRANCH

0.8 MI N OF SR 4, San Joaquin, CA

Built 1931 Load: 22.0 t ADT: 13

INTERSTATE 5 NB

Poor

Over: WEBER,PERSHING,FREMONT

10-SJ-005-26.47-STKN, San Joaquin, CA

Built 1972 Load: 22.7 t ADT: 56,500

WEST LANE

Poor

Over: BEAR CREEK

1.6 MI N HAMMER LANE, San Joaquin, CA

Built 1966 Load: 23.0 t ADT: 14,064

CENTER ST

Poor

Over: STOCKTON CHANNEL

N OF WEBER ST, San Joaquin, CA

Built 1949 Load: 25.3 t ADT: 7,000

LOWER SACTO RD

Poor

Over: MOSHER SLOUGH

N. OF MACDUFF AVE, San Joaquin, CA

Built 1972 Load: 25.6 t ADT: 19,600

INTERSTATE 5 SB

Poor

Over: WEBER,PERSHING,FREMONT

10-SJ-005-26.47-STKN, San Joaquin, CA

Built 1972 Load: 25.9 t ADT: 113,000

S. TRACY BOULEVARD

Poor

Over: OLD RIVER

3 MI NORTH OF S.H. 205, San Joaquin, CA

Built 1956 Load: 26.6 t ADT: 7,008

INTERSTATE 5 SB

Poor

Over: WALKER SLOUGH

10-SJ-005-R23.93-STKN, San Joaquin, CA

Built 1971 Load: 28.5 t ADT: 43,750

DIAMOND STREET

Poor

Over: MORMON SLOUGH

0.1 MI N OF DR MLK JR BL, San Joaquin, CA

Built 1960 Load: 28.8 t ADT: 2,164

MACKVILLE ROAD

Poor

Over: MOKELUMNE RIVER

0.1 MI S JAHANT RD, San Joaquin, CA

Built 1976 Load: 30.1 t ADT: 1,202

AIRPORT WAY

Poor

Over: DUCK CREEK

1 MI N INDUSTRIAL DR, San Joaquin, CA

Built 1968 Load: 30.8 t ADT: 5,300

WEST LANE

Poor

Over: CALAVERAS RIVER

0.5 MI N FULTON ST, San Joaquin, CA

Built 1966 Load: 30.8 t ADT: 41,000

WEST LANE

Poor

Over: CALAVERAS RIVER

0.5 MI N FULTON ST, San Joaquin, CA

Built 1966 Load: 30.8 t ADT: 41,000

THORNTON ROAD

Poor

Over: BEAR CREEK

1.4 MI N DAVIS RD INTRX, San Joaquin, CA

Built 1960 Load: 30.8 t ADT: 23,500

ESCALON BELLOTA RD

Poor

Over: MORMON SLOUGH

S/E OF S.H. 26, San Joaquin, CA

Built 1966 Load: 31.4 t ADT: 2,430

PERSHING AVE

Poor

Over: CALAVERAS RIVER

JUST N TELEGRAPH AVE, San Joaquin, CA

Built 1959 Load: 31.8 t ADT: 29,900

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial