Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Los Angeles County, California contains 3,937 public highway bridges. Roughly 34.3% are rated “Good,” 17.1% “Fair,” and 2.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

3,937

Total Bridges

34.3%

Good

17.1%

Fair

2.2%

Poor Condition

Condition Distribution

Good

34.3% (1,350)

Fair

17.1% (675)

Poor

2.2% (88)

All Bridges (3,937)

Sort:

MAPLE ST-W210

Over: W210-S710 & W210 CONN

07-LA-210-R25.21-PAS, Los Angeles, CA

Built 1974 ADT: 14,600

WALNUT ST

Over: E210-W134 CONNECTOR RAMP

07-LA-210-R24.94-PAS, Los Angeles, CA

Built 1974 ADT: 5,700

DEL MAR BLVD

Over: INTERSTATE 710

07-LA-710-T32.11-PAS, Los Angeles, CA

Built 1975 ADT: 47,000

GREEN ST

Over: INTERSTATE 710

07-LA-710-R32.37-PAS, Los Angeles, CA

Built 1975 ADT: 47,000

COLORADO BLVD

Over: INTERSTATE 710

07-LA-710-R32.45-PAS, Los Angeles, CA

Built 1975 ADT: 220,000

ST JOHN AVENUE

Over: E134-S710 CONNECTOR RAMP

07-LA-134-R13.23-PAS, Los Angeles, CA

Built 1975 ADT: 225,000

N710-W134 CONNECTR

Over: I 710, CONNS, ST JOHN AV

07-LA-710-R32.63-PAS, Los Angeles, CA

Built 1975 ADT: 32,900

WALNUT STREET

Over: W210&E210-S710,N710-W210

07-LA-210-R24.95-PAS, Los Angeles, CA

Built 1975 ADT: 9,300

ORANGE GROVE-E134

Over: SR 134 & CONNECTORS

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

Built 1974 ADT: 220,000

INTERSTATE 10

Over: LARK ELLEN AVE

07-LA-010-35.97-WCOV, Los Angeles, CA

Built 1975 ADT: 14,000

INTERSTATE 10

Over: HOLLENBECK STREET

07-LA-010-36.98-WCOV, Los Angeles, CA

Built 1975 ADT: 11,200

FAIR OAKS AVE

Over: ROUTE 210

07-LA-210-R25.29-PAS, Los Angeles, CA

Built 1975 ADT: 294,000

MARENGO AVE

Over: ROUTE 210

07-LA-210-R25.54-PAS, Los Angeles, CA

Built 1976 ADT: 294,000

LOS ROBLES AVE

Over: ROUTE 210

07-LA-210-R25.81-PAS, Los Angeles, CA

Built 1976 ADT: 294,000

EL MOLINO AVE

Over: ROUTE 210

07-LA-210-R26.07-PAS, Los Angeles, CA

Built 1976 ADT: 294,000

LAKE AVE

Over: ROUTE 210

07-LA-210-R26.33-PAS, Los Angeles, CA

Built 1976 ADT: 294,000

WILSON AVE

Over: ROUTE 210

07-LA-210-R26.57-PAS, Los Angeles, CA

Built 1976 ADT: 294,000

INTERSTATE 210 WB

Over: ALTADENA DR

07-LA-210-R28.25-PAS, Los Angeles, CA

Built 1976 ADT: 60,500

INTERSTATE 210 EB

Over: ALTADENA DR

07-LA-210-R28.25-PAS, Los Angeles, CA

Built 1976 ADT: 22,720

INTERSTATE 210 WB

Over: SIERRA MADRE BLVD

07-LA-210-R28.46-PAS, Los Angeles, CA

Built 1976 ADT: 60,500

INTERSTATE 210 EB

Over: SIERRA MADRE BLVD

07-LA-210-R28.46-PAS, Los Angeles, CA

Built 1976 ADT: 67,200

INTERSTATE 210 WB

Over: SUNNYSLOPE AVE

07-LA-210-R28.73-PAS, Los Angeles, CA

Built 1976 ADT: 67,200

INTERSTATE 210 EB

Over: SUNNYSLOPE AVE

07-LA-210-R28.73-PAS, Los Angeles, CA

Built 1976 ADT: 32,000

ROSEMONT AVE

Over: ROUTE 210

07-LA-210-R17.72, Los Angeles, CA

Built 1972 ADT: 166,000

PICKENS CYN FLM OC

Over: SR 210

07-LA-210-R17.79, Los Angeles, CA

Built 1972 ADT: 147,000

HALLS CYN FLUME OC

Over: SR 210

07-LA-210-R18.14, Los Angeles, CA

Built 1972 ADT: 147,000

OCEAN VIEW BLVD

Over: INTERSTATE 210

07-LA-210-R18.22, Los Angeles, CA

Built 1972 ADT: 186,000

LA CRESCENTA AVE

Over: ROUTE 210

07-LA-210-R17.38, Los Angeles, CA

Built 1972 ADT: 166,000

ROUTE 90

Over: CENTINELA AVE

07-LA-090-R1.72-LA, Los Angeles, CA

Built 1972 ADT: 17,000

STATE ROUTE 134

Over: I-710, STREET & CONN

07-LA-134-R13.24-PAS, Los Angeles, CA

Built 1975 ADT: 6,550

E134-W210 CONNECTR

Over: 210,710,134 & CONN

07-LA-134-R13.25-PAS, Los Angeles, CA

Built 1974 ADT: 220,000

BRIGGS AVENUE

Over: INTERSTATE 210

07-LA-210-R18.01, Los Angeles, CA

Built 1972 ADT: 186,000

RAMSDELL AVE

Over: ROUTE 210

07-LA-210-R17.09, Los Angeles, CA

Built 1972 ADT: 166,000

E134-FAIR OAKS AVE

Over: N710-E210 CONNECTOR

07-LA-210-R25.12-PAS, Los Angeles, CA

Built 1974 ADT: 295,000

STATE ROUTE 118 WB

Over: INTERSTATE 5

07-LA-118-R11.42L-LA, Los Angeles, CA

Built 1976 ADT: 291,000

STATE ROUTE 118 EB

Over: INTERSTATE 5

07-LA-118-R11.42R-LA, Los Angeles, CA

Built 1976 ADT: 291,000

LAUREL CYN BL ON R

Over: ROUTE 5

07-LA-118-R11.42L-LA, Los Angeles, CA

Built 1976 ADT: 291,000

LAUREL CYN BL OFF

Over: ROUTE 5

07-LA-118-R11.43R-LA, Los Angeles, CA

Built 1976 ADT: 275,825

W118-S5 CONNECTOR

Over: ROUTES 5 & 118,LAUREL CY

07-LA-118-R11.52L-LA, Los Angeles, CA

Built 1976 ADT: 133,500

E118-S5 CONN

Over: PAXTON ON/OFF RA, CHAN

07-LA-118-R11.41R-LA, Los Angeles, CA

Built 1976 ADT: 28,084

N5-W118 CONNECTOR

Over: I 5 & SR 118,CONNS,WASH

07-LA-005-39.31-LA, Los Angeles, CA

Built 1976 ADT: 276,650

S5-E118 CONNECTOR

Over: ROUTES 5 & 118, & CONNS

07-LA-005-39.36-LA, Los Angeles, CA

Built 1976 ADT: 133,798

ROUTE 118

Over: LAUREL CANYON BLVD

07-LA-118-R11.56L-LA, Los Angeles, CA

Built 1976 ADT: 14,504

N5-E118 CONNECTOR

Over: N5-PAXTON & PAXTON-N5

07-LA-005-39.15-LA, Los Angeles, CA

Built 1976 ADT: 4,440

LINDERO CANYON RD

Over: ROUTE 101

07-LA-101-37.54-WLKV, Los Angeles, CA

Built 1973 ADT: 175,000

ROUTE 118

Over: ARLETA AVE

07-LA-118-R11.05L-LA, Los Angeles, CA

Built 1976 ADT: 8,008

INTERSTATE 10

Over: W COVINA PARKWAY

07-LA-010-34.46-WCOV, Los Angeles, CA

Built 1975 ADT: 18,500

STATE ROUTE 91

Over: LONG BEACH BLVD

07-LA-091-R11.10-LBCH, Los Angeles, CA

Built 1974 ADT: 13,000

GRAND-W10 ON-RAMP

Over: N GARVEY AVENUE

07-LA-010-38.40-WCOV, Los Angeles, CA

Built 1975 ADT: 4,600

W10-GRAND OFF-RAMP

Over: N GARVEY AVENUE

07-LA-010-38.41-WCOV, Los Angeles, CA

Built 1975 ADT: 4,600

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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