Santa Clara County, CA

1,041 public highway bridges

Santa Clara County Bridge Snapshot

Santa Clara County, California contains 1,041 public highway bridges in the FHWA National Bridge Inventory. Roughly 25.7% are rated “Good,” 29.5% “Fair,” 3.7% “Poor,” and 3.7% 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.

1,041

Total Bridges

25.7%

Good

3.7%

Poor

3.7%

Structurally Deficient

Condition Distribution

Good

25.7% (268)

Fair

29.5% (307)

Poor

3.7% (38)

SD

3.7% (38)

All Bridges (1,041)

Sort:

LAWRENCE EXPWY

Over: U.S. HIGHWAY 101

04-SCL-101-43.85-SUNV, Santa Clara, CA

Built 1998 ADT: 134,000

N. SHORELINE BLVD

Over: U.S. HIGHWAY 101

04-SCL-101-48.60-MVW, Santa Clara, CA

Built 1992 ADT: 155,000

EMBARCADERO-SB 101

Over: SB HIGHWAY 101 RAMP

04-SCL-101-52.11-PA, Santa Clara, CA

Built 1965 ADT: 11,700

SAN TOMAS EXPWY

Over: U.S. HIGHWAY 101

04-SCL-101-41.98-SCL, Santa Clara, CA

Built 1961 ADT: 134,000

FAIR OAKS AVENUE

Over: U.S. HIGHWAY 101

04-SCL-101-44.83-SUNV, Santa Clara, CA

Built 1961 ADT: 134,000

LAFAYETTE ST (NB)

Over: U.S. HIGHWAY 101

04-SCL-101-41.07-SCL, Santa Clara, CA

Built 1961 ADT: 134,000

INTERSTATE 880

Over: FOREST AVE

04-SCL-880-0.69-SJS, Santa Clara, CA

Built 1959 ADT: 4,500

MATHILDA AVENUE

Over: U.S. HIGHWAY 101

04-SCL-101-45.68-SUNV, Santa Clara, CA

Built 1961 ADT: 134,000

STATE ROUTE 237

Over: U.S. HIGHWAY 101

04-SCL-237-2.45-SUNV, Santa Clara, CA

Built 1959 ADT: 134,000

STATE ROUTE 237

Over: MATHILDA AVENUE

04-SCL-237-2.99-SUNV, Santa Clara, CA

Built 1961 ADT: 35,800

N87-N101 CONNECTOR

Over: U.S. HIGHWAY 101

04-SCL-087-9.20-SJS, Santa Clara, CA

Built 1992 ADT: 160,000

STATE ROUTE 85

Over: FREMONT AVENUE

04-SCL-085-R19.86-SUNV, Santa Clara, CA

Built 1965 ADT: 22,578

STATE ROUTE 85

Over: MOFFETT BOULEVARD

04-SCL-085-R23.44-MVW, Santa Clara, CA

Built 1965 ADT: 32,000

S280-S17 CONNECTOR

Over: MOORPARK AVENUE

04-SCL-280-L5.49-SJS, Santa Clara, CA

Built 1964 ADT: 22,700

SARATOGA AVENUE

Over: INTERSTATE 280

04-SCL-280-5.95-SJS, Santa Clara, CA

Built 1964 ADT: 10,000

STEVENS CR BL-S280

Over: S880-N&S280 CONNECTOR RP

04-SCL-880-0.15-SJS, Santa Clara, CA

Built 1963 ADT: 15,500

MONROE STREET POC

Over: I 280, CONN, TISCH WAY

04-SCL-280-L5.58-SJS, Santa Clara, CA

Built 1964 ADT: 5,500

S280-N880 CONNECTR

Over: I 280, I 880 & CONNECTRS

04-SCL-280-L5.50-SJS, Santa Clara, CA

Built 1963 ADT: 174,000

INTERSTATE 280

Over: SAN TOMAS EXPRESSWAY

04-SCL-280-5.31-SJS, Santa Clara, CA

Built 1964 ADT: 51,850

WINCHESTER BLVD

Over: INTERSTATE 280

04-SCL-280-R4.57-SJS, Santa Clara, CA

Built 1964 ADT: 204,000

STATE ROUTE 85

Over: STATE ROUTE 237

04-SCL-085-R22.13-MVW, Santa Clara, CA

Built 1965 ADT: 2,450

STATE ROUTE 82

Over: STATE ROUTE 85

04-SCL-082-18.82-MVW, Santa Clara, CA

Built 1965 ADT: 115,000

DANA STREET

Over: STATE ROUTE 237 & RAMPS

04-SCL-237-R0.61-MVW, Santa Clara, CA

Built 1964 ADT: 68,000

DE ANZA BOULEVARD

Over: INTERSTATE 280

04-SCL-280-9.43-CPO, Santa Clara, CA

Built 1965 ADT: 138,000

STATE ROUTE 85

Over: CALTRAIN,UP RR,CENTRAL,

04-SCL-085-R22.63-MVW, Santa Clara, CA

Built 1965 ADT: 18,700

HOMESTEAD ROAD

Over: STATE ROUTE 85

04-SCL-085-R18.86-CPO, Santa Clara, CA

Built 1965 ADT: 115,000

STELLING ROAD

Over: INTERSTATE 280

04-SCL-280-9.94-CPO, Santa Clara, CA

Built 1965 ADT: 138,000

INTERSTATE 280

Over: LAWRENCE EXPWY & CREEK

04-SCL-280-7.12-SJS, Santa Clara, CA

Built 1965 ADT: 53,800

INTERSTATE 280

Over: STEVENS CREEK BOULEVARD

04-SCL-280-7.39-SCL, Santa Clara, CA

Built 1965 ADT: 31,550

BLANEY AVENUE

Over: INTERSTATE 280

04-SCL-280-8.96-CPO, Santa Clara, CA

Built 1965 ADT: 138,000

MIDDLEFIELD ROAD

Over: STATE ROUTE 85

04-SCL-085-R23.19-MVW, Santa Clara, CA

Built 1965 ADT: 115,000

DE LA CRUZ BLVD

Over: STATE ROUTE 82

04-SCL-082-11.38-SCL, Santa Clara, CA

Built 1961 ADT: 23,900

CYPRESS AVENUE POC

Over: INTERSTATE 280

04-SCL-280-5.11-SJS, Santa Clara, CA

Built 1989 ADT: 203,000

WOLFE ROAD

Over: INTERSTATE 280

04-SCL-280-8.38-CPO, Santa Clara, CA

Built 1965 ADT: 5,000

HELLYER AVENUE

Over: US HIGHWAY 101

04-SCL-101-30.10, Santa Clara, CA

Built 1965 ADT: 128,000

CAPITOL EXPRESSWAY

Over: U.S. HIGHWAY 101

04-SCL-101-31.70-SJS, Santa Clara, CA

Built 1965 ADT: 12,750

SAN ANTONIO STREET

Over: U.S. HIGHWAY 101

04-SCL-101-R35.46-SJS, Santa Clara, CA

Built 1993 ADT: 188,000

SB INTERSTATE 280

Over: MAGDALENA AVENUE

04-SCL-280-14.10, Santa Clara, CA

Built 1967 ADT: 5,803

NB INTERSTATE 280

Over: MAGDALENA AVENUE

04-SCL-280-14.10, Santa Clara, CA

Built 1967 ADT: 5,803

N85-N280 CONNECTOR

Over: INTERSTATE 280

04-SCL-085-R18.43-SUNV, Santa Clara, CA

Built 1971 ADT: 138,500

STATE ROUTE 85

Over: INTERSTATE 280

04-SCL-085-R18.41-SUNV, Santa Clara, CA

Built 1967 ADT: 21,200

S85-S280 CONNECTOR

Over: INTERSTATE 280

04-SCL-085-R18.49-CPO, Santa Clara, CA

Built 1967 ADT: 138,500

N85-N280 CONNECTOR

Over: S85-S280 CONNECTOR

04-SCL-085-R18.35-CPO, Santa Clara, CA

Built 1971 ADT: 18,500

STATE ROUTE 85

Over: S85-S280 CONNECTOR

04-SCL-085-R18.35-SUNV, Santa Clara, CA

Built 1971 ADT: 18,500

S85-S280 CONNECTOR

Over: N85-N280 CONNECTOR

04-SCL-085-R18.60-CPO, Santa Clara, CA

Built 1967 ADT: 22,600

STATE ROUTE 85

Over: N85-N280 CONNECTOR

04-SCL-085-R18.53-SUNV, Santa Clara, CA

Built 1967 ADT: 22,600

MORA DRIVE

Over: INTERSTATE 280

04-SCL-280-13.12, Santa Clara, CA

Built 1967 ADT: 117,000

SB INTERSTATE 280

Over: EL MONTE ROAD

04-SCL-280-15.05-LAH, Santa Clara, CA

Built 1967 ADT: 25,300

NB INTERSTATE 280

Over: EL MONTE ROAD

04-SCL-280-15.05-LAH, Santa Clara, CA

Built 1967 ADT: 25,300

INTERSTATE 280

Over: FOOTHILL EXPRESSWAY

04-SCL-280-11.45-LATS, Santa Clara, CA

Built 1967 ADT: 43,500

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