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:

3RD ST-S110 ON RMP

Over: STATE ROUTE 110

07-LA-110-23.17-LA, Los Angeles, CA

Built 1951 ADT: 289,000

4TH ST EB & RAMP

Over: STATE ROUTE 110 & RAMPS

07-LA-110-23.01-LA, Los Angeles, CA

Built 1951 ADT: 500

5TH ST-SB 110 ONRP

Over: STATE ROUTE 110 & RAMP

07-LA-110-22.88-LA, Los Angeles, CA

Built 1953 ADT: 99

6TH STREET

Over: STATE ROUTE 110 & RAMPS

07-LA-110-22.80-LA, Los Angeles, CA

Built 1953 ADT: 2,000

SB110-16TH OFFRAMP

Over: STATE ROUTE 110 & RAMPS

07-LA-110-22.76-LA, Los Angeles, CA

Built 1953 ADT: 12,000

WILSHIRE BLVD

Over: STATE ROUTE 110 & RAMP

07-LA-110-22.67-LA, Los Angeles, CA

Built 1952 ADT: 99

7TH STREET

Over: STATE ROUTE 110 & RAMPS

07-LA-110-22.56-LA, Los Angeles, CA

Built 1953 ADT: 270,000

STATE ROUTE 110

Over: 8TH STREET

07-LA-110-22.44-LA, Los Angeles, CA

Built 1953 ADT: 19,000

NB 110-6TH OFFRAMP

Over: 8TH STREET

07-LA-110-22.44-LA, Los Angeles, CA

Built 1953 ADT: 21,000

SB 110-8TH OFFRAMP

Over: 8TH ST-SB 110 ON RAMP

07-LA-110-22.37-LA, Los Angeles, CA

Built 1953 ADT: 2,000

STATE ROUTE 110

Over: 9TH STREET

07-LA-110-22.27-LA, Los Angeles, CA

Built 1953 ADT: 19,000

3RD ST ON-RAMP

Over: ROUTE 60

07-LA-060-R2.39, Los Angeles, CA

Built 1965 ADT: 239,000

MAIN STREET

Over: S101-LOS ANGELES ST OFF

07-LA-101-0.95-LA, Los Angeles, CA

Built 1950 ADT: 7,500

ORANGE GROVE BLVD

Over: STATE ROUTE 134 & RAMPS

07-LA-134-R12.96-PAS, Los Angeles, CA

Built 1971 ADT: 14,401

INTERSTATE 5

Over: PARAMOUNT BLVD

07-LA-005-8.95-DNY, Los Angeles, CA

Built 1953 ADT: 22,440

LOS ANGELES STREET

Over: US 101 ON-RAMP

07-LA-101-0.88-LA, Los Angeles, CA

Built 1950 ADT: 13,700

STATE ROUTE 60

Over: THIRD STREET

07-LA-060-R2.59, Los Angeles, CA

Built 1965 ADT: 18,050

PEDESTRIAN WALKWAY

Over: STATE ROUTE 60

07-LA-060-R2.94, Los Angeles, CA

Built 1967 ADT: 249,000

EASTERN AVE

Over: STATE ROUTE 60

07-LA-060-R3.06, Los Angeles, CA

Built 1967 ADT: 62,000

AVE 36 OC

Over: ROUTE 2

07-LA-002-16.64-LA, Los Angeles, CA

Built 1976 ADT: 143,000

ALAMEDA ST

Over: ROUTE 101

07-LA-101-0.76-LA, Los Angeles, CA

Built 1954 ADT: 2,000

S101-VINE ST OFF-R

Over: CAHUENGA BL-S101 ON-RAMP

07-LA-101-7.32-LA, Los Angeles, CA

Built 1953 ADT: 3,500

DOWNEY ROAD

Over: INTERSTATE 5

07-LA-005-14.25, Los Angeles, CA

Built 1951 ADT: 251,000

ROUTE 710 NB

Over: ROUTE 5, CONN, TELEGRAPH

07-LA-710-23.19-CMRC, Los Angeles, CA

Built 1954 ADT: 232,000

PEDESTRIAN WALKWAY

Over: I 10, HOV, SCRRA, BNSF

07-LA-010-21.86-ALH, Los Angeles, CA

Built 1952 ADT: 35,500

4TH ST EB RAMP

Over: STATE ROUTE 110 & RAMPS

07-LA-110-23.00-LA, Los Angeles, CA

Built 1951 ADT: 270,000

ROUTE 710 SB

Over: ROUTE 5, CONN, TELEGRAPH

07-LA-710-23.21-CMRC, Los Angeles, CA

Built 1955 ADT: 5,000

S710-S5 & N5-N710

Over: I 5 NB & TELEGRAPH

07-LA-710-23.26-CMRC, Los Angeles, CA

Built 1956 ADT: 228,000

N710-N5 CONNECTOR

Over: ROUTE 5 SB

07-LA-710-23.20-CMRC, Los Angeles, CA

Built 1955 ADT: 232,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 10

07-LA-010S-19.53-LA, Los Angeles, CA

Built 1952 ADT: 6,200

NB 110-6TH OFFRAMP

Over: 8TH STREET-NB 110 ONRAMP

07-LA-110-22.49-LA, Los Angeles, CA

Built 1953 ADT: 99

STATE ROUTE 110

Over: OLYMPIC BLVD

07-LA-110-22.12-LA, Los Angeles, CA

Built 1953 ADT: 28,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 5

07-LA-005-10.06-CMRC, Los Angeles, CA

Built 1978 ADT: 218,000

PEDESTRIAN WALKWAY

Over: I 10, SCRRA, BNSF, HOV

07-LA-010-23.12-ALH, Los Angeles, CA

Built 1968 ADT: 35,500

STATE ROUTE 47

Over: W47-HARBOR BLVD OFF RAMP

07-LA-047-0.73-LA, Los Angeles, CA

Built 1963 ADT: 5,000

PEDESTRIAN WALKWAY

Over: U.S. HIGHWAY 101

07-LA-101-2.60-LA, Los Angeles, CA

Built 1951 ADT: 265,000

INTERSTATE 10 WB

Over: SIXTH STREET

07-LA-010-23.65-ALH, Los Angeles, CA

Built 1953 ADT: 14,000

INTERSTATE 10 EB

Over: SIXTH STREET

07-LA-010-23.65-ALH, Los Angeles, CA

Built 1953 ADT: 14,000

ARCADIA STREET

Over: N101-NEW HIGH ST OFF-RMP

07-LA-101-1.02-LA, Los Angeles, CA

Built 1951 ADT: 8,700

LACTC ACCESS RD

Over: ROUTE 710

07-LA-710-10.31-LBCH, Los Angeles, CA

Built 1954 ADT: 186,000

UP RR

Over: INTERSTATE 710

07-LA-710-10.28-LBCH, Los Angeles, CA

Built 1954 ADT: 193,000

LONG BEACH BLVD

Over: ROUTE 710

07-LA-710-12.01-LBCH, Los Angeles, CA

Built 1974 ADT: 200,000

ARTESIA BLVD

Over: INTERSTATE 710

07-LA-710-12.89-LBCH, Los Angeles, CA

Built 1953 ADT: 199,000

ALONDRA BLVD

Over: ROUTE 710

07-LA-710-13.95-COM, Los Angeles, CA

Built 1958 ADT: 233,000

COMPTON BLVD

Over: ROUTE 710

07-LA-710-14.45-PRM, Los Angeles, CA

Built 1986 ADT: 234,000

ROSECRANS AVE

Over: ROUTE 710

07-LA-710-14.98-PRM, Los Angeles, CA

Built 1990 ADT: 6,700

IMPERIAL HIGHWAY

Over: ROUTE 710

07-LA-710-16.99-LYN, Los Angeles, CA

Built 1956 ADT: 20,000

FIRESTONE BLVD

Over: INTERSTATE 710

07-LA-710-18.44-SGT, Los Angeles, CA

Built 1957 ADT: 19,401

UP RR

Over: INTERSTATE 710

07-LA-710-18.74-SGT, Los Angeles, CA

Built 1957 ADT: 225,000

CLARA STREET

Over: INTERSTATE 710

07-LA-710-19.40-BELL, Los Angeles, CA

Built 1957 ADT: 213,000

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