Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

Los Angeles County, California contains 3,937 public highway bridges in the FHWA National Bridge Inventory. Roughly 34.3% are rated “Good,” 17.1% “Fair,” 2.2% “Poor,” and 2.2% 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.

3,937

Total Bridges

34.3%

Good

2.2%

Poor

2.2%

Structurally Deficient

Condition Distribution

Good

34.3% (1,350)

Fair

17.1% (675)

Poor

2.2% (88)

SD

2.2% (88)

All Bridges (3,937)

Sort:

E10-SAN GABRIEL BL

Over: SAN GABRIEL BLVD

07-LA-010-25.84-RSMD, Los Angeles, CA

Built 1953 ADT: 19,070

INTERSTATE 10 WB

Over: WALNUT GROVE AVE

07-LA-010-26.34-RSMD, Los Angeles, CA

Built 1953 ADT: 15,200

INTERSTATE 10 EB

Over: WALNUT GROVE AVE

07-LA-010-26.34-RSMD, Los Angeles, CA

Built 1953 ADT: 15,200

INTERSTATE 10

Over: SANTA ANITA AVE

07-LA-010-28.67-EMTE, Los Angeles, CA

Built 1956 ADT: 39,900

INTERSTATE 10

Over: VALLEY BOULEVARD

07-LA-010-29.55-EMTE, Los Angeles, CA

Built 1956 ADT: 30,600

INTERSTATE 10

Over: PECK ROAD

07-LA-010-29.43-EMTE, Los Angeles, CA

Built 1956 ADT: 3,800

INTERSTATE 10

Over: COGSWELL RD

07-LA-010-30.13-EMTE, Los Angeles, CA

Built 1956 ADT: 11,600

INTERSTATE 10

Over: FRANCISQUITO AVE

07-LA-010-32.66-BWP, Los Angeles, CA

Built 1956 ADT: 11,400

INTERSTATE 10

Over: PUENTE AVE

07-LA-010-33.35-BWP, Los Angeles, CA

Built 1956 ADT: 16,600

INTERSTATE 10

Over: CAMERON AVE

07-LA-010-34.28-WCOV, Los Angeles, CA

Built 1956 ADT: 12,000

INTERSTATE 10

Over: SUNSET AVE

07-LA-010-34.85-WCOV, Los Angeles, CA

Built 1956 ADT: 20,000

INTERSTATE 10

Over: AZUSA AVE

07-LA-010-36.48-WCOV, Los Angeles, CA

Built 1975 ADT: 2,040

INTERSTATE 10

Over: CITRUS STREET

07-LA-010-37.48-WCOV, Los Angeles, CA

Built 1971 ADT: 7,000

INTERSTATE 10

Over: HOLT AVE

07-LA-010-38.97-WCOV, Los Angeles, CA

Built 1975 ADT: 4,000

U.S. HIGHWAY 101

Over: MELROSE AVE

07-LA-101-4.85-LA, Los Angeles, CA

Built 1950 ADT: 12,000

U.S. HIGHWAY 101

Over: MELROSE AVE

07-LA-101-4.85-LA, Los Angeles, CA

Built 1950 ADT: 34,620

RTE 2 SANTA MONICA

Over: ROUTE 101

07-LA-002-12.73-LA, Los Angeles, CA

Built 1950 ADT: 212,500

WESTERN AVE

Over: U.S. HIGHWAY 101

07-LA-101-5.81-LA, Los Angeles, CA

Built 1950 ADT: 175,000

SUNSET BLVD

Over: ROUTE 101

07-LA-101-6.25-LA, Los Angeles, CA

Built 1951 ADT: 196,000

HOLLYWOOD BLVD O

Over: ROUTE 101

07-LA-101-6.52-LA, Los Angeles, CA

Built 1952 ADT: 90,000

U.S. HIGHWAY 101

Over: ARGYLE AV & FRANKLIN AV

07-LA-101-7.06-LA, Los Angeles, CA

Built 1953 ADT: 7,500

U.S. HIGHWAY 101

Over: CAHUENGA BLVD

07-LA-101-7.46-LA, Los Angeles, CA

Built 1952 ADT: 13,900

STATE ROUTE 110

Over: 1ST STREET

07-LA-110-23.34-LA, Los Angeles, CA

Built 1950 ADT: 37,000

STATE ROUTE 110

Over: 2ND STREET

07-LA-110-23.23-LA, Los Angeles, CA

Built 1950 ADT: 8,000

3RD ST

Over: STATE ROUTE 110& RAMPS

07-LA-110-23.12-LA, Los Angeles, CA

Built 1951 ADT: 99

5TH STREET

Over: STATE ROUTE 110 & RAMPS

07-LA-110-22.83-LA, Los Angeles, CA

Built 1953 ADT: 99

5TH ST-NB 110 ONRP

Over: NB 110-4TH & 3RD OFFRAMP

07-LA-110-22.91-LA, Los Angeles, CA

Built 1952 ADT: 99

INTERSTATE 405

Over: SEPULVEDA BLVD

07-LA-405-34.76-LA, Los Angeles, CA

Built 1962 ADT: 21,487

U.S. HIGHWAY 101

Over: ODIN STREET

07-LA-101-7.74-LA, Los Angeles, CA

Built 1954 ADT: 7,500

PEDESTRIAN WALKWAY

Over: STATE ROUTE 60 WB

07-LA-060-R1.06-LA, Los Angeles, CA

Built 1965 ADT: 210,000

INTERSTATE 405

Over: SR 187 (VENICE BLVD)

07-LA-405-27.95-CLC, Los Angeles, CA

Built 1959 ADT: 42,000

INTERSTATE 405

Over: UP RR,PICO,EXPOSITION

07-LA-405-29.85-LA, Los Angeles, CA

Built 1959 ADT: 24,000

S405-E&W10 CONNCTR

Over: PICO,EXPOSITION,SAWTELLE

07-LA-405-29.85-LA, Los Angeles, CA

Built 1964 ADT: 5,473

INTERSTATE 405

Over: OLYMPIC BLVD

07-LA-405-30.18-LA, Los Angeles, CA

Built 1959 ADT: 18,143

S110-E&W10 CONN

Over: VENICE BL, PICO BL, 12TH

07-LA-110-21.71-LA, Los Angeles, CA

Built 1962 ADT: 18,000

INTERSTATE 405

Over: SR 2 SANTA MONICA

07-LA-405-30.86-LA, Los Angeles, CA

Built 1959 ADT: 40,500

INTERSTATE 405

Over: WILSHIRE BLVD

07-LA-405-31.54, Los Angeles, CA

Built 1957 ADT: 78,839

FOUNTAIN AVE

Over: ROUTE 101

07-LA-101-5.94-LA, Los Angeles, CA

Built 1951 ADT: 175,000

BRONSON AVE OC

Over: ROUTE 101

07-LA-101-6.65-LA, Los Angeles, CA

Built 1977 ADT: 154,000

STATE ROUTE 1

Over: INTERSTATE 710

07-LA-001-7.29-LBCH, Los Angeles, CA

Built 1952 ADT: 33,000

WILLOW STREET

Over: INTERSTATE 710

07-LA-710-7.89-LBCH, Los Angeles, CA

Built 1947 ADT: 153,000

WARDLOW RD

Over: INTERSTATE 710

07-LA-710-9.07-LBCH, Los Angeles, CA

Built 1949 ADT: 153,000

US HIGHWAY 101 SB

Over: HIGHLAND-NB 101 ON RAMP

07-LA-101-7.84-LA, Los Angeles, CA

Built 1954 ADT: 71,000

WILTON PLACE

Over: ROUTE 101

07-LA-101-6.15-LA, Los Angeles, CA

Built 1951 ADT: 196,000

HOLLYWOOD BL-S101

Over: S101-VAN NESS AV ON-RAMP

07-LA-101-6.41-LA, Los Angeles, CA

Built 1977 ADT: 7,005

INTERSTATE 210

Over: BERKSHIRE PL UC

07-LA-210-R21.53-LCF, Los Angeles, CA

Built 1974 ADT: 9,500

INTERSTATE 405

Over: GETTY CENTER DRIVE

07-LA-405-34.21-LA, Los Angeles, CA

Built 1962 ADT: 2,500

INTERSTATE 405

Over: SEPULVEDA BLVD

07-LA-405-38.59-LA, Los Angeles, CA

Built 1962 ADT: 8,255

INTERSTATE 405

Over: VENTURA BLVD

07-LA-405-39.00-LA, Los Angeles, CA

Built 1956 ADT: 39,820

N405-N&S101 CONNEC

Over: VENTURA BLVD

07-LA-405-39.00-LA, Los Angeles, CA

Built 1956 ADT: 39,820

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

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