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 EB

Over: WILSON WAY

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

Built 1992 ADT: 19,450

PEDESTRIAN WALKWAY

Over: STATE ROUTE 99 AND RAMPS

10-SJ-099-18.47, San Joaquin, CA

Built 1991 ADT: 96,000

MYRTLE STREET

Over: STATE ROUTE 99 & RAMPS

10-SJ-099-18.89, San Joaquin, CA

Built 1991 ADT: 83,000

N99-W4 CONNECTOR

Over: SR 99, E4-N99, N99-E26

10-SJ-099-18.57, San Joaquin, CA

Built 1993 ADT: 1,920

E4-N99 CONNECTOR

Over: STATE ROUTE 99

10-SJ-004-R19.40-STKN, San Joaquin, CA

Built 1993 ADT: 101,000

OFFRMP SB99-JACKTN

Over: ONRAMP JACKTONE RD-SB 99

10-SJ-099-2.33-RIP, San Joaquin, CA

Built 2001 ADT: 107,000

ONRAMP JACKTNE-99S

Over: STATE ROUTE 99

10-SJ-099-2.36-RIP, San Joaquin, CA

Built 2001 ADT: 113,000

STATE ROUTE 99

Over: ARCH ROAD

10-SJ-099-14.61-STKN, San Joaquin, CA

Built 2006 ADT: 13,600

JACK TONE ROAD

Over: UPRR,SB99 ONRP,KAMPS WY

10-SJ-099-2.32-RIP, San Joaquin, CA

Built 2001 ADT: 10,000

JACK TONE ROAD

Over: STATE ROUTE 99

10-SJ-099-2.34-RIP, San Joaquin, CA

Built 2001 ADT: 113,000

MOUNTAINHOUSE PKWY

Over: INTERSTATE ROUTE 205

10-SJ-205-1.36, San Joaquin, CA

Built 2007 ADT: 106,000

BIRD ROAD

Over: STATE ROUTE 132

10-SJ-132-2.25, San Joaquin, CA

Built 2014 ADT: 15,500

HAMMER LANE

Over: STATE ROUTE 99

10-SJ-099-22.92, San Joaquin, CA

Built 2007 ADT: 64,000

MARIPOSA ROAD

Over: SR 99

10-SJ-099-16.68-STKN, San Joaquin, CA

Built 2016 ADT: 73,000

BNSF RAILROAD

Over: HWY 99

10-SJ-099-17.38-STKN, San Joaquin, CA

Built 2016 ADT: 87,000

MAIN STREET

Over: STATE ROUTE 99

10-SJ-099-18.15-STKN, San Joaquin, CA

Built 2016 ADT: 96,000

DR MLK JR BLVD

Over: HWY 99

10-SJ-099-18.02-STKN, San Joaquin, CA

Built 2016 ADT: 87,000

GOLDEN GATE AVE

Over: HWY 99

10-SJ-099-17.41-STKN, San Joaquin, CA

Built 2016 ADT: 87,000

LATHROP ROAD

Over: STATE ROUTE 99

10-SJ-099-9.18-MTCA, San Joaquin, CA

Built 2015 ADT: 70,000

STATE ROUTE 99

Over: UP RR & FRENCH CAMP ROAD

10-SJ-099-11.47-MTCA, San Joaquin, CA

Built 2015 ADT: 2,000

SR 4-FARMINGTON RD

Over: STATE ROUTE 99

10-SJ-004-19.75, San Joaquin, CA

Built 2021 ADT: 94,000

BNSF RY & AMTRAK

Over: FRESNO AVENUE

0.25 MI N NAVY RD, San Joaquin, CA

Built 1972 ADT: 16,000

MAIN ST

Over: UP RR

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

Built 1967 ADT: 1,150

UP RR, BNSF,AMTRAK

Over: TURNER ROAD

0.2 MI EST CHURCH ST, San Joaquin, CA

Built 1962 ADT: 22,300

UP RR & BNSF RY

Over: LOWER SACRAMENTO ROAD

0.4 MI S/O COLLIER RD, San Joaquin, CA

Built 1925 ADT: 4,526

EL DORADO ST

Over: BIANCHI ROAD

OVER BIANCHI RD, San Joaquin, CA

Built 1962 ADT: 10,400

BNSF,WORTH,SCOTTS

Over: WILSON WAY

0.2 MI S OF HAZELTON AVE, San Joaquin, CA

Built 1937 ADT: 22,900

UP RR & BNSF RY

Over: HARDING WAY

0.5 MI E CALIFORNIA ST, San Joaquin, CA

Built 1963 ADT: 10,000

UP RR, BNSF,AMTRAK

Over: MINER AVENUE

0.1 MI E OF AURORA ST, San Joaquin, CA

Built 1980 ADT: 4,500

ABANDONED RR ROW

Over: MINER AVENUE

0.2 MI E AURORA ST, San Joaquin, CA

Built 1980 ADT: 4,500

UNION STREET

Over: MINER AVENUE

AT MINER AVE, San Joaquin, CA

Built 1980 ADT: 4,500

EL DORADO STREET

Over: BNSF,AMTRAK,HAZELTON,ETC

SOUTH OF CHURCH ST, San Joaquin, CA

Built 1959 ADT: 12,200

CENTER STREET

Over: BNSF,AMTRAK,HAZELTON,ETC

SOUTH OF CHURCH ST, San Joaquin, CA

Built 1959 ADT: 14,900

MARIPOSA ROAD OH

Over: AUSTIN ROAD & BNSF RY

1 MILE WEST OF KAISER RD, San Joaquin, CA

Built 2002 ADT: 900

UP RR, BNSF RY

Over: MARTIN LUTHER KING JR BL

0.2 MI WEST OF AIRPORT WY, San Joaquin, CA

Built 1937 ADT: 27,700

UP RR, BNSF,AMTRAK

Over: MARTIN LUTHER KING JR BL

0.1 MI W N AIRPORT WAY, San Joaquin, CA

Built 1937 ADT: 27,700

BNSF RY & AMTRAK

Over: DR MLK JR BLVD

SOUTH OF ANDERSON STREET, San Joaquin, CA

Built 1949 ADT: 12,500

UP RAILROAD TRACKS

Over: LOWER SACRAMENTO ROAD

SOUTH OF 8 MILE ROAD, San Joaquin, CA

Built 2013 ADT: 15,100

ARCH AIRPORT ROAD

Over: EL DORADO STREET

0.46 MI EAST OF ROUTE 5, San Joaquin, CA

Built 2013 ADT: 6,200

ARCH AIRPORT ROAD

Over: MCKINLEY, UPRR, PANATONI

0.81 MI EAST OF ROUTE 5, San Joaquin, CA

Built 2013 ADT: 4,300

UP RAILROAD TRACKS

Over: MARCH LANE

WEST OF WEST LANE, San Joaquin, CA

Built 2003 ADT: 28,500

UP RAILROAD TRACKS

Over: MARCH LANE

EAST OF WEST LANE, San Joaquin, CA

Built 2003 ADT: 35,200

UP RAILROAD TRACKS

Over: EAST HAMMER LANE

WEST OF WEST LANE, San Joaquin, CA

Built 2001 ADT: 47,000

UP RAILROAD TRACKS

Over: EAST HAMMER LANE

EAST OF WEST LANE, San Joaquin, CA

Built 2001 ADT: 40,900

BNSF RR MAINLINE

Over: NAVY DRIVE

0.6 MI S OF W WASHINGTON, San Joaquin, CA

Built 2018 ADT: 26,600

BNSF RR SHOOFLY

Over: NAVY DRIVE

0.6 MI S OF W WASHINGTON, San Joaquin, CA

Built 2018 ADT: 26,600

CARROLTON RD

Over: LONE TREE CREEK

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

Built 1928 Load: 9.7 t ADT: 304

MILTON ROAD

Over: CHANNEL A BRANCH

0.6 MI W OF FINE RD, San Joaquin, CA

Built 1927 Load: 13.9 t ADT: 301

KOSTER RD

Over: HOSPITAL CREEK

0.9 MI N GAFFERY RD, San Joaquin, CA

Built 1947 Load: 13.9 t ADT: 400

INTERSTATE 5

Over: CARLTON AVE

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

Built 1970 Load: 15.6 t ADT: 56,500

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.