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:

BARTD

Over: MOWRY AVE

0.1 MI NW/O PARKSIDE DR., Alameda, CA

Built 1968 ADT: 54,228

BARTD

Over: MOWRY AVE

0.1 MI NW/O PARKSIDE DR., Alameda, CA

Built 1968 ADT: 54,228

UP RR

Over: TENNYSON ROAD

0.2 MI W/O WHITMAN ST, Alameda, CA

Built 1968 ADT: 26,415

BARTD

Over: TENNYSON ROAD

0.2 MI W/O MISSION BLVD, Alameda, CA

Built 1968 ADT: 45,462

BARTD

Over: WEST A STREET

0.2 MI W/O MISSION BLVD, Alameda, CA

Built 1968 ADT: 41,127

BARTD

Over: B STREET

0.2 MI W/O MISSION BLVD, Alameda, CA

Built 1968 ADT: 22,076

BARTD

Over: HIGH STREET

AT SAN LEANDRO ST, Alameda, CA

Built 1968 ADT: 17,590

BARTD

Over: FRUITVALE AVE

BTWN SAN LEANDRO & E12TH, Alameda, CA

Built 1968 ADT: 17,147

BUCHANAN ST

Over: UP RR, BNSF RY, & AMTRAK

NEAR I-80, Alameda, CA

Built 1963 ADT: 10,629

BARTD (C5003A)

Over: MACARTHUR BLVD

AT SR 24, Alameda, CA

Built 1968 ADT: 21,491

BARTD (C5003B)

Over: MACARTHUR BLVD

AT SR 24, Alameda, CA

Built 1968 ADT: 21,491

BARTD (C5003C)

Over: MACARTHUR BLVD

AT SR 24, Alameda, CA

Built 1968 ADT: 21,491

BARTD (C5003D)

Over: MACARTHUR BLVD

AT SR 24, Alameda, CA

Built 1968 ADT: 21,491

UP RR,BNSF,ACE

Over: N P STREET

0.1 MI S CHESTNUT ST, Alameda, CA

Built 1974 ADT: 400

UP RR,BNSF,ACE

Over: LIVERMORE AVE

BETW CHESTNUT/RAILROAD, Alameda, CA

Built 1974 ADT: 400

BARTD

Over: LEWELLING BLVD

0.4 MI W/O MISSION BLVD, Alameda, CA

Built 1968 ADT: 24,100

BARTD

Over: SEMINARY AVE

JUST NE/O SAN LEANDRO ST, Alameda, CA

Built 1968 ADT: 11,000

HEGENBERGER ROAD

Over: BARTD, UPRR, SAN LEANDRO

0.4 MI SOUTH OF 66TH AVE, Alameda, CA

Built 1966 ADT: 2,000

UP RR

Over: ORCHARD AVE

0.15 MI SW/O SR 238, Alameda, CA

Built 1970 ADT: 10,106

BARTD

Over: ORCHARD AVE

0.1 MI W/O MISSION BLVD, Alameda, CA

Built 1970 ADT: 14,200

BARTD

Over: 105TH AVE

AT SAN LEANDRO ST, Alameda, CA

Built 1968 ADT: 14,200

WHITMAN ST

Over: HARDER ROAD

HARDER RD, Alameda, CA

Built 1970 ADT: 18,907

UP RR

Over: HARDER ROAD

0.2 MI W/O SR 238, Alameda, CA

Built 1970 ADT: 18,907

BARTD

Over: HARDER RD

0.1 MI W/O MISSION BLVD, Alameda, CA

Built 1970 ADT: 6,610

UP RR & BNSF RY

Over: PASEO PADRE PARKWAY

0.2 MI N/O PERALTA BLVD, Alameda, CA

Built 1975 ADT: 28,500

UP RR

Over: ASHLAND AVE

N/O SR 238, Alameda, CA

Built 1960 ADT: 9,257

BARTD

Over: ASHLAND AVE

0.2 MI N/O 238, Alameda, CA

Built 1960 ADT: 15,500

ELGIN ST

Over: ASHLAND AVE

ELGIN ST & ASHLAND AVE, Alameda, CA

Built 1960 ADT: 6,000

BARTD

Over: 75TH AVE

AT SAN LEANDRO ST, Alameda, CA

Built 1968 ADT: 6,635

BARTD (R3002)

Over: SOLANO AVE

0.3 MI E/O SAN PABLO AVE, Alameda, CA

Built 1968 ADT: 19,700

BARTD (R3002)

Over: MARIN AVE

0.3 MI E/O SAN PABLO AVE, Alameda, CA

Built 1968 ADT: 20,604

BARTD (R3002)

Over: GILMAN STREET

0.2 MI W/O HOPKINS ST, Alameda, CA

Built 1968 ADT: 17,500

BARTD

Over: MARTIN LUTHER KING BLVD

63RD ST, Alameda, CA

Built 1968 ADT: 30,000

BARTD (R3001)

Over: 55TH STREET

AT MLK JR WY, Alameda, CA

Built 1968 ADT: 8,040

BARTD (R3001)

Over: MARTIN LUTHER KING JR WY

ONRAMP RTE 24 NEAR 47TH, Alameda, CA

Built 1968 ADT: 600

BARTD

Over: COLLEGE AVE

AT SR 24, Alameda, CA

Built 1968 ADT: 23,400

BARTD (C3003 A&B)

Over: FOREST STREET

MILES S4, Alameda, CA

Built 1968 ADT: 600

BARTD

Over: HUDSON STREET

CLAREMONT ST, Alameda, CA

Built 1968 ADT: 600

BARTD (C3002)

Over: CLAREMONT STREET

0.1 MI S HUDSON, Alameda, CA

Built 1968 ADT: 2,000

BARTD (C5010)

Over: TELEGRAPH AVE

56TH ST, Alameda, CA

Built 1968 ADT: 2,000

BARTD (C5008)

Over: SHATTUCK AVE

54TH ST, Alameda, CA

Built 1968 ADT: 2,000

BARTD (C5005 A&B)

Over: 45TH STREET

0.1 MI E M L KING JR WAY, Alameda, CA

Built 1968 ADT: 600

BARTD (C5004)

Over: 42ND STREET

0.1 MI E M L KING JR WAY, Alameda, CA

Built 1968 ADT: 600

BARTD

Over: 40TH STREET

0.1 MI E M L LING JR WAY, Alameda, CA

Built 1968 ADT: 600

BARTD (C5001)

Over: 29TH STREET

0.1 MI E M L LING JR WAY, Alameda, CA

Built 1968 ADT: 600

BARTD (C3001)

Over: 27TH STREET

WEST NORTHGATE AVE, Alameda, CA

Built 1968 ADT: 600

BARTD

Over: NORTHGATE AVE

WEST NORTHGATE AVE, Alameda, CA

Built 1968 ADT: 600

BARTD

Over: MARTIN LUTHER KING JR WY

BTWN 4TH & 5TH ST, Alameda, CA

Built 1968 ADT: 1,000

BARTD (M3001)

Over: MARKET STREET

BTWN 4TH & 5TH ST, Alameda, CA

Built 1968 ADT: 600

BARTD (M3001)

Over: 5TH STREET

BTWN MKT ST & FILBERT ST, Alameda, CA

Built 1968 ADT: 1,000

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