Alameda County, CA

800 public highway bridges

Alameda County Bridge Snapshot

Alameda County, California contains 800 public highway bridges in the FHWA National Bridge Inventory. Roughly 15.4% are rated “Good,” 25.6% “Fair,” 5% “Poor,” and 5% 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.

800

Total Bridges

15.4%

Good

5%

Poor

5%

Structurally Deficient

Condition Distribution

Good

15.4% (123)

Fair

25.6% (205)

Poor

5% (40)

SD

5% (40)

All Bridges (800)

Sort:

W92-S880 CONNECTOR

Over: I 880, E92-N880 CONNECTR

04-ALA-092-6.37-HAY, Alameda, CA

Built 2010 ADT: 101,000

E92-N880 CONNECTR

Over: I 880, S880-E92 CONNECTR

04-ALA-092-6.27-HAY, Alameda, CA

Built 2009 ADT: 106,000

BARTD

Over: S880-UNION & UNION-N880

04-ALA-880-R32.58-OAK, Alameda, CA

Built 1968 ADT: 126,000

HIGHT ST -N880

Over: SR 77 & S880-N77 CNNCTR

04-ALA-880-27.70-OAK, Alameda, CA

Built 2013 ADT: 24,500

INTERSTATE 580 WB

Over: INTERSTATE 205 EB

04-ALA-580-0.40R, Alameda, CA

Built 2009 ADT: 122,000

UP RR, BNSF RY

Over: STATE RTE 262 MISSION BL

04-ALA-262-R0.43-FMT, Alameda, CA

Built 2015 ADT: 76,000

RR TRACKS (BARTD)

Over: STATE RTE 262 MISSION BL

04-ALA-262-R0.45-FMT, Alameda, CA

Built 2015 ADT: 76,000

STANLEY BLVD

Over: STATE ROUTE 84 (ISABEL)

04-ALA-084-R26.98-LVMR, Alameda, CA

Built 2003 ADT: 43,000

UNION PACIFIC RR

Over: STATE ROUTE 84 (ISABEL)

04-ALA-084-R27.00-LVMR, Alameda, CA

Built 2003 ADT: 22,800

PORTOLA AVE

Over: I-580,ARROYO LAS POSITAS

04-ALA-580-13.22, Alameda, CA

Built 2011 ADT: 208,000

ST RTE 84 (ISABEL)

Over: INTERSTATE 580

04-ALA-084-N28.15-LVMR, Alameda, CA

Built 2011 ADT: 95,000

BARTD

Over: W24-PATTON ST OFF RAMP

04-ALA-024-R4.16-OAK, Alameda, CA

Built 1970 ADT: 5,000

STATE ROUTE 238 NB

Over: SR 185 (14TH STREET)

04-ALA-238-14.93, Alameda, CA

Built 2010 ADT: 18,000

UP RR SPUR

Over: STATE ROUTE 238

04-ALA-238-3.77-FMT, Alameda, CA

Built 2006 ADT: 27,000

UP RR & BNSF RY

Over: STATE ROUTE 238

04-ALA-238-3.40-FMT, Alameda, CA

Built 2006 ADT: 10,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 580 WB

04-ALA-580-20.98-PLE, Alameda, CA

Built 2015 ADT: 99,273

PEDESTRIAN WALKWAY

Over: INTERSTATE 580 EB

04-ALA-580-20.98-PLE, Alameda, CA

Built 2015 ADT: 82,727

I880 SB

Over: UPRR,AMTRAK,SR77,HIGH ST

04-ALA-880-27.63-OAK, Alameda, CA

Built 2013 ADT: 21,500

I880 NB

Over: UPRR,AMTRAK,SR77,HIGH

04-ALA-880-27.63-OAK, Alameda, CA

Built 2013 ADT: 21,500

MARINA BLVD

Over: INTERSTATE 880

04-ALA-880-22.84-SLN, Alameda, CA

Built 2016 ADT: 217,000

STATE ROUTE 112

Over: INTERSTATE 880

04-ALA-112-R0.47-SLN, Alameda, CA

Built 2016 ADT: 217,000

BARTD

Over: ROUTE I 880 AND RAMPS

04-ALA-880-25.54-OAK, Alameda, CA

Built 2014 ADT: 20,000

CALAROGA AVE

Over: STATE ROUTE 92 & RAMP

04-ALA-092-R6.03-HAY, Alameda, CA

Built 2011 ADT: 5,000

29TH AVENUE

Over: INTERSTATE 880

04-ALA-880-28.69-OAK, Alameda, CA

Built 2020 ADT: 2,000

INTERSTATE 880

Over: 29 TH AVENUE

04-ALA-880-28.69, Alameda, CA

Built 2020 ADT: 8,220

23RD AVENUE

Over: INTERSTATE 880

04-ALA-880-28.95-OAK, Alameda, CA

Built 2020 ADT: 22,500

INTERSTATE 880

Over: UP RR, BNSF, AMTRAK, 5TH

04-ALA-880-30.38-ALA, Alameda, CA

Built 2013 ADT: 10,000

SHERIDAN ROAD

Over: INTERSTATE ROUTE 680

04-ALA-680-R8.32, Alameda, CA

Built 2020 ADT: 153,300

TOLL PLAZA CANOPY

Over: STATE ROUTE 92 WB

04-ALA-092-R2.59, Alameda, CA

Built 1992 ADT: 86,000

TOLL PLAZA CANOPY

Over: STATE ROUTE 92 WB

04-ALA-092-R2.69, Alameda, CA

Built 2003 ADT: 86,000

PEDESTRIAN & BIKE

Over: INTERSTATE ROUTE 80

04-ALA-080-6.49-BER, Alameda, CA

Built 2023 ADT: 233,000

WEST GRAND AVENUE

Over: UPRR, BNSF, AMTRAK, WOOD

04-ALA-000-0.00-OAK, Alameda, CA

Built 1997 ADT: 4,500

UP RR,BNSF RY,ACE

Over: ALTAMONT PASS ROAD

0.4 MI E/O GREENVILLE RD, Alameda, CA

Built 1908 ADT: 400

UP RR,BNSF,AMTRAK

Over: NILES BLVD

0.15 MI SW OF ST RTE 238, Alameda, CA

Built 1937 ADT: 5,200

UP RR

Over: LOWRY RD

0.5 MI SW/O ALVARADO BLVD, Alameda, CA

Built 1960 ADT: 9,300

UPRR, BNSF, AMTRAK

Over: PLEASANTON-SUNOL RD

0.1 MI W OF HWY 680, Alameda, CA

Built 1985 ADT: 2,500

UP RR & BARTD

Over: WASHINGTON AVE

0.4 MI S/O MARINA BLVD, Alameda, CA

Built 1936 ADT: 16,800

PEDESTRIAN WALKWAY

Over: BROADWAY

NEAR PATTON ST, Alameda, CA

Built 1967 ADT: 5,000

BARTD

Over: HESPERIAN BLVD

0.2 MI S/O HALCYON DR, Alameda, CA

Built 1969 ADT: 21,000

UP RR, BNSF,AMTRAK

Over: PLEASANTON-SUNOL RD

0.1 MI W OF I-580, Alameda, CA

Built 1965 ADT: 5,300

UPRR, BNSF, & ACE

Over: PLEASANTON-SUNOL RD

NEAR VERONA RD W/O I680, Alameda, CA

Built 1907 ADT: 1,800

UP RR, BNSF, ACE

Over: ALTAMONT PASS ROAD

3.7 MI E OF GREENVILLE RD, Alameda, CA

Built 1907 ADT: 400

UP RR & BNSF RY

Over: INDUSTRIAL PARKWAY WEST

0.3 MI SW/O SR 238, Alameda, CA

Built 1967 ADT: 34,718

BARTD

Over: INDUSTRIAL PARKWAY WEST

0.3 MI SW/O SR 238, Alameda, CA

Built 1968 ADT: 10,000

BARTD

Over: DECOTO ROAD

0.3 MI W MILES RD, Alameda, CA

Built 1968 ADT: 25,984

UP RR, BNSF RY

Over: D STREET

0.3 MI SW/O SR 238, Alameda, CA

Built 1965 ADT: 19,751

BARTD

Over: D STREET

W OF ATHERTON ST, Alameda, CA

Built 1965 ADT: 19,751

UP RR & BNSF RY

Over: GRIMMER BLVD

0.1 MI E/O WARM SPRGS BL, Alameda, CA

Built 1979 ADT: 12,300

UP RR

Over: GRIMMER BLVD

0.1 MI E/O WARM SPRGS BL, Alameda, CA

Built 1979 ADT: 12,300

PEDESTRIAN WALKWAY

Over: HEGENBERGER,ARROYO VIEJO

OVER HEGENBERGER RD, Alameda, CA

Built 1966 ADT: 5,000

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026