Orange County, CA

1,224 public highway bridges

Orange County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Orange County, California contains 1,224 public highway bridges. Roughly 35.3% are rated “Good,” 21.2% “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.

1,224
Total Bridges
35.3%
Good
21.2%
Fair
2.2%
Poor Condition

Condition Distribution

Good
35.3% (432)
Fair
21.2% (260)
Poor
2.2% (27)

All Bridges (1,224)

AVENIDA DEL ESTE

Fair

Over: RIO DEL ORO CHANNEL

100' E/O AVNDA RIO DL ORO, Orange, CA

Built 1970 Load: 24.3 t ADT: 550

AVENIDA DEL ESTE

Fair

Over: RIO DEL ORO CHANNEL

50' E/O AVENDA RIO DL ORO, Orange, CA

Built 1970 Load: 24.3 t ADT: 550

VIA LOMAS

Fair

Over: BIKEWAY UNDERCROSSING

100' WEST OF ALICIA PKWY, Orange, CA

Built 1970 Load: 24.3 t ADT: 2,000

PACIFIC COAST HWY

Fair

Over: PEDESTRIAN WALKWAY

.12 MI NW NIGUEL RD, Orange, CA

Built 1969 Load: 24.3 t ADT: 40,000

KITTERMAN DRIVE

Fair

Over: SILVERADO CANYON CREEK

0.1 MI. S/O SLVRDO CYN RD, Orange, CA

Built 1970 Load: 25.3 t ADT: 200

W/B ALTON PARKWAY

Fair

Over: BNSF RY,AMTRAK,METROLINK

0.3 MI NE/O MUIRLAND BLVD, Orange, CA

Built 1981 Load: 25.3 t ADT: 17,000

RANCHO VIEJO ROAD

Fair

Over: TRABUCO CREEK CHANNEL

0.1 MI SE/O TRABCO CRK RD, Orange, CA

Built 1959 Load: 25.6 t ADT: 12,000

STATE ROUTE 57

Fair

Over: BNSF RY SPUR TRACK

12-ORA-057-16.63-PLCN, Orange, CA

Built 1969 Load: 27.5 t ADT: 271,000

BARANCA PKWY WB

Fair

Over: PETERS CANYON CHANNEL

0.2 MI E JAMBOREE RD, Orange, CA

Built 1969 Load: 28.2 t ADT: 10,700

E/B LA PAZ ROAD

Fair

Over: OSO CREEK

0.2 MI E/O MARGUERITE PKW, Orange, CA

Built 1979 Load: 29.2 t ADT: 14,140

BRISTOL ST

Fair

Over: SANTIAGO CREEK CHANNEL

0.3 MI S/O MEMORY LANE, Orange, CA

Built 1947 Load: 29.5 t ADT: 55,000

S73-N&S133

Fair

Over: WILDLIFE PATHWAY

12-ORA-073-16.95-LGNB, Orange, CA

Built 1996 Load: 30.5 t ADT: 1,701

SANTIAGO CNYN ROAD

Fair

Over: SANTIAGO CREEK

0.2 MI W/O SILVERADO CYN, Orange, CA

Built 1963 Load: 30.5 t ADT: 7,000

MAGNOLIA ST

Fair

Over: HUNTINGTON BEACH CHANNEL

0.2 MI N/O RTE 1, Orange, CA

Built 1973 Load: 30.5 t ADT: 9,000

W/B LA PAZ ROAD

Fair

Over: SCRRA,BNSF RY,AMTRAK

200' NE/O MUIRLANDS BLVD, Orange, CA

Built 1965 Load: 30.8 t ADT: 16,000

E/B LA PAZ ROAD

Fair

Over: SCRRA,BNSF RY,AMTRAK

200' NE/O MUIRLANDS BLVD., Orange, CA

Built 1965 Load: 30.8 t ADT: 21,500

WESTMINSTER AVE-EB

Fair

Over: LOS ALAMITOS CHANNEL

0.8 MI W/O SEAL BEACH BL., Orange, CA

Built 1964 Load: 31.1 t ADT: 13,000

WESTMINSTER AVE-WB

Fair

Over: FEDERAL STORM CHANNEL

0.7 MI W/O SEAL BEACH BL., Orange, CA

Built 1964 Load: 31.1 t ADT: 13,000

WESTMINSTER AVE-EB

Fair

Over: FEDERAL STORM CHANNEL

0.7 MI W/O SEAL BEACH BL., Orange, CA

Built 1964 Load: 31.1 t ADT: 11,000

CAMPUS DRIVE

Fair

Over: SAN DIEGO CREEK CHANNEL

100' NW UNIVERSITY DR, Orange, CA

Built 1974 Load: 31.1 t ADT: 17,000

STATE ROUTE 57

Fair

Over: BREA TRAIL

12-ORA-057-20.61-BRE, Orange, CA

Built 1971 Load: 31.8 t ADT: 245,000

ROSTRATA AVENUE

Fair

Over: BREA CREEK CHANNEL

0.2 MI. N/O ARTESIA BLVD., Orange, CA

Built 1987 Load: 31.8 t ADT: 1,927

STATE ROUTE 1

Fair

Over: SANTA ANA RIVER

12-ORA-001-21.55-HNTB, Orange, CA

Built 1992 Load: 32.4 t ADT: 32,000

STATE ROUTE 1

Fair

Over: ANAHEIM BAY

12-ORA-001-31.75-SLB, Orange, CA

Built 1967 Load: 32.4 t ADT: 41,000

S1-COAST HIWAY OFF

Fair

Over: SAN JUAN CREEK

12-ORA-001-R1.00-DAPT, Orange, CA

Built 1927 Load: 32.4 t ADT: 8,000

STATE ROUTE 74

Fair

Over: SAN JUAN CREEK

12-ORA-074-10.44-SJCP, Orange, CA

Built 1987 Load: 32.4 t ADT: 9,800

STATE ROUTE 74

Fair

Over: HOT SPRINGS CANYON

12-ORA-074-12.34-SJCP, Orange, CA

Built 1991 Load: 32.4 t ADT: 9,800

SR 39 (BEACH BLVD)

Fair

Over: BREA CREEK CHANNEL

12-ORA-039-15.83-BPK, Orange, CA

Built 1925 Load: 32.4 t ADT: 57,500

SR 90 (IMPERIAL)

Fair

Over: IMPERIAL CHANNEL

12-ORA-090-1.23-LHB, Orange, CA

Built 1968 Load: 32.4 t ADT: 47,000

SR 90 (IMPERIAL)

Fair

Over: BREA CANYON CREEK

12-ORA-090-4.07-BRE, Orange, CA

Built 1959 Load: 32.4 t ADT: 47,500

STATE ROUTE 91

Fair

Over: SANTA ANA RIVER

12-ORA-091-8.57-ANA, Orange, CA

Built 1954 Load: 32.4 t ADT: 213,000

SR 39 (BEACH BLVD)

Fair

Over: COYOTE CREEK CHANNEL

12-ORA-039-19.23-LHB, Orange, CA

Built 1962 Load: 32.4 t ADT: 40,000

SR 90 (IMPERIAL)

Fair

Over: LOFTUS DIVERSION CHANNEL

12-ORA-090-5.63-BRE, Orange, CA

Built 1970 Load: 32.4 t ADT: 44,500

INTERSTATE 5

Fair

Over: AVENIDA VAQUERO

12-ORA-005-4.97-SCLE, Orange, CA

Built 1981 Load: 32.4 t ADT: 242,200

INTERSTATE 405

Fair

Over: UP RR

12-ORA-405-17.21-WTM, Orange, CA

Built 1965 Load: 32.4 t ADT: 256,000

SR 39 (BEACH BLVD)

Fair

Over: E GARDEN GROVE CHANNEL

12-ORA-039-5.13-HNTB, Orange, CA

Built 1961 Load: 32.4 t ADT: 72,000

SR 39 (BEACH BLVD)

Fair

Over: WESTMINSTER STORM DRAIN

12-ORA-039-7.14-WTM, Orange, CA

Built 1954 Load: 32.4 t ADT: 59,000

INTERSTATE 405

Fair

Over: SAN DIEGO CREEK CHANNEL

12-ORA-405-6.41-IRVN, Orange, CA

Built 1968 Load: 32.4 t ADT: 266,000

S133-N405 CONN

Fair

Over: SAN DIEGO CREEK

12-ORA-133-8.59-IRVN, Orange, CA

Built 1968 Load: 32.4 t ADT: 13,270

ROUTE 133 SB

Fair

Over: SAN DIEGO CREEK

12-ORA-133-8.59-IRVN, Orange, CA

Built 1968 Load: 32.4 t ADT: 20,000

ROUTE 133 NB

Fair

Over: SAN DIEGO CREEK

12-ORA-133-8.59-IRVN, Orange, CA

Built 1958 Load: 32.4 t ADT: 20,000

STATE ROUTE 91

Fair

Over: COYOTE CREEK

12-ORA-091-R0.10-LPMA, Orange, CA

Built 1969 Load: 32.4 t ADT: 235,500

SR 39 (BEACH BLVD)

Fair

Over: ANAHEIM FLOOD CONTROL CH

12-ORA-039-9.37-STT, Orange, CA

Built 1958 Load: 32.4 t ADT: 52,000

INTERSTATE 405

Fair

Over: BOLSA CHICA DITCH

12-ORA-405-20.77-SLB, Orange, CA

Built 1959 Load: 32.4 t ADT: 374,000

STATE ROUTE 57

Fair

Over: SANTA ANA RIVER

12-ORA-057-11.96-ORA, Orange, CA

Built 1976 Load: 32.4 t ADT: 229,000

INTERSTATE 405

Fair

Over: LOS ALAMITOS CHANNEL

12-ORA-405-24.10-SLB, Orange, CA

Built 1965 Load: 32.4 t ADT: 255,000

INTERSTATE 405

Fair

Over: ANAHEIM-BARBER CITY CH

12-ORA-405-19.45-WTM, Orange, CA

Built 1965 Load: 32.4 t ADT: 256,000

SR 55

Fair

Over: GREEN FIELD STORM CHANNL

12-ORA-055-R6.10-CMS, Orange, CA

Built 1966 Load: 32.4 t ADT: 222,000

W MACAR-N55 ON-RMP

Fair

Over: MACAR STORM CHANNEL

12-ORA-055-R7.04-SA, Orange, CA

Built 1966 Load: 32.4 t ADT: 18,200

S55-MACAR OFF RAMP

Fair

Over: MACARTHUR STRM CHANNEL

12-ORA-055-R7.14-SA, Orange, CA

Built 1966 Load: 32.4 t ADT: 19,200

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

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.