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:

STATE ROUTE 91

Over: ARTESIA BL, BUTLER AV

07-LA-091-R11.43-LBCH, Los Angeles, CA

Built 1974 ADT: 13,000

CEDAR VALLEY WAY

Over: ROUTE 14

07-LA-014-R30.55, Los Angeles, CA

Built 1972 ADT: 143,000

INTERSTATE 210

Over: ARROYO SECO

07-LA-210-R22.14-PAS, Los Angeles, CA

Built 1974 ADT: 113,000

AVENUE "K-8"

Over: ROUTE 14

07-LA-014-R66.18-LAN, Los Angeles, CA

Built 1970 ADT: 76,000

GOULD AVE

Over: I 210

07-LA-210-R20.60-LCF, Los Angeles, CA

Built 1972 ADT: 113,000

STATE ROUTE 14

Over: TECHNOLOGY DRIVE

07-LA-014-R60.70-PMDL, Los Angeles, CA

Built 1972 ADT: 3,500

STATE ROUTE 14

Over: TECHNOLOGY DRIVE

07-LA-014-R60.70-PMDL, Los Angeles, CA

Built 1972 ADT: 3,500

AVENUE "O"

Over: ROUTE 14

07-LA-014-R62.66, Los Angeles, CA

Built 1970 ADT: 89,000

VIA PRINCESSA-SB14

Over: SIERRA HWY

07-LA-014-R30.66, Los Angeles, CA

Built 1972 ADT: 13,000

STATE ROUTE 118

Over: DESOTO AVE, BROWNS CYN W

07-LA-118-R2.55-LA, Los Angeles, CA

Built 1971 ADT: 34,243

INTERSTATE 210

Over: LA TUNA CANYON RD UC

07-LA-210-R14.15-LA, Los Angeles, CA

Built 1975 ADT: 4,900

ALTA CANYADA RD

Over: ROUTE 210

07-LA-210-R19.23-LCF, Los Angeles, CA

Built 1972 ADT: 116,000

WINERY CYN FLUME O

Over: ROUTE 210

07-LA-210-R19.31-LCF, Los Angeles, CA

Built 1972 ADT: 116,000

ROUTE 210

Over: E2-W210 CONNECTOR RAMP

07-LA-210-R18.76-LCF, Los Angeles, CA

Built 1972 ADT: 27,400

ORANGE GROVE BLVD

Over: I 210 & CONNECTORS

07-LA-210-R24.64-PAS, Los Angeles, CA

Built 1973 ADT: 8,350

ORANGE GROVE-W134

Over: ST RTE 134 & STREETS

07-LA-134-R12.90-PAS, Los Angeles, CA

Built 1971 ADT: 4,500

LINDA VISTA AVE

Over: ROUTE 210

07-LA-210-R22.02-LCF, Los Angeles, CA

Built 1974 ADT: 113,000

INTERSTATE 210

Over: W210-W2 CONNECTOR RAMP

07-LA-210-R18.91-LCF, Los Angeles, CA

Built 1972 ADT: 94,400

SIERRA HWY OFF-RAM

Over: ROUTE 14 & VIA PRINCESSA

07-LA-014-R30.81, Los Angeles, CA

Built 1972 ADT: 71,000

ROUTE 14

Over: VIA PRINCESSA

07-LA-014-R30.91, Los Angeles, CA

Built 1972 ADT: 4,000

INTERSTATE 210

Over: HAMPTON RD & FOOTHILL BL

07-LA-210-R20.85-LCF, Los Angeles, CA

Built 1972 ADT: 35,000

INTERSTATE 405

Over: SR 118

07-LA-405-46.83-LA, Los Angeles, CA

Built 1977 ADT: 205,000

W118-S405 CONNECTR

Over: I 405,SR 118,CHATSWORTH

07-LA-118-R9.83-LA, Los Angeles, CA

Built 1977 ADT: 254,000

SR 118

Over: SEPULVEDA BLVD

07-LA-118-R10.07-LA, Los Angeles, CA

Built 1976 ADT: 33,000

W118-S405 CONNECTR

Over: SEPULVEDA BLVD

07-LA-118-R10.08-LA, Los Angeles, CA

Built 1976 ADT: 37,000

N405-E&W118 CONN

Over: I 405, SR 118, CHATSWRTH

07-LA-405-46.80-LA, Los Angeles, CA

Built 1977 ADT: 210,000

E&W118-S405 CONNEC

Over: S405-DEVONSHIRE ST OFFRP

07-LA-118-R9.74-LA, Los Angeles, CA

Built 1977 ADT: 4,800

COMMONWEALTH AVE

Over: ROUTE 210

07-LA-210-R20.16-LCF, Los Angeles, CA

Built 1972 ADT: 113,000

E210-S2 CONNECTOR

Over: WALTONIA DR

07-LA-210-R18.53-LCF, Los Angeles, CA

Built 1972 ADT: 7,000

W210 OFFRAMP

Over: WALTONIA DR

07-LA-210-R18.53-LCF, Los Angeles, CA

Built 1972 ADT: 9,000

E2-W210 CONNECTOR

Over: VERDUGO BL & W210-W2 RP

07-LA-002-R23.00-GNDL, Los Angeles, CA

Built 1972 ADT: 16,000

AVENUE "N"

Over: ROUTE 14

07-LA-014-R63.67, Los Angeles, CA

Built 1970 ADT: 92,000

AVENUE "M"

Over: ROUTE 14

07-LA-014-R64.68-LAN, Los Angeles, CA

Built 1970 ADT: 92,500

AVENUE "L"

Over: ROUTE 14

07-LA-014-R65.68-LAN, Los Angeles, CA

Built 1970 ADT: 91,000

COLORADO BLVD WB

Over: E134-COLORADO BL OFF-RMP

07-LA-134-R12.90-PAS, Los Angeles, CA

Built 1971 ADT: 6,401

ROUTE 2 ANGELS CRE

Over: ROUTE 210

07-LA-002-24.43, Los Angeles, CA

Built 1972 ADT: 117,000

ROUTE 2 WB

Over: ROUTE 210, VERDUGO, CONN

07-LA-002-R22.94-GNDL, Los Angeles, CA

Built 1972 ADT: 22,700

ROUTE 2 EB

Over: RTE 210, VERDUGO BL, CON

07-LA-002-R22.97-GNDL, Los Angeles, CA

Built 1972 ADT: 20,300

PEDESTRIAN WALKWAY

Over: INTERSTATE 210

07-LA-210-R21.12-LCF, Los Angeles, CA

Built 1974 ADT: 113,000

STATE ROUTE 91

Over: ALAMEDA, SANTA FE, UP RR

07-LA-091-R10.19-COM, Los Angeles, CA

Built 1974 ADT: 16,500

ALAMEDA ST-E91 ON

Over: ALAMEDA ST, COMPTON CRK

07-LA-091-R10.26-COM, Los Angeles, CA

Built 1974 ADT: 16,900

W91-ARTESIA+SAN FE

Over: ARTESIA BL, SANTA FE AV

07-LA-091-R10.39-COM, Los Angeles, CA

Built 1974 ADT: 8,000

STATE ROUTE 91

Over: I 710, W91-S710,N710-W91

07-LA-091-R11.64-LBCH, Los Angeles, CA

Built 1974 ADT: 35,000

E91-N710 CONNECTOR

Over: I 710, W91-S710,N710-E91

07-LA-091-R11.65-LBCH, Los Angeles, CA

Built 1974 ADT: 65,000

STATE ROUTE 91

Over: SUSANA RD

07-LA-091-R10.81-COM, Los Angeles, CA

Built 1974 ADT: 7,500

W134-ORANGE GROVE

Over: E210-W134 & N710-W134

07-LA-134-R13.08-PAS, Los Angeles, CA

Built 1974 ADT: 7,690

MAPLE ST

Over: I-210 & I-710 CONN

07-LA-210-R24.58-PAS, Los Angeles, CA

Built 1975 ADT: 8,350

W210-S710 CONN

Over: ROUTE 210 EB

07-LA-210-R25.10-PAS, Los Angeles, CA

Built 1974 ADT: 294,000

S. PASADENA AVE

Over: N710-E210 CONNECTOR RAMP

07-LA-710-R32.68-PAS, Los Angeles, CA

Built 1975 ADT: 66,000

WALNUT ST

Over: N710-E210 CONNECTOR RAMP

07-LA-710-R32.69-PAS, Los Angeles, CA

Built 1975 ADT: 66,000

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