Orange County, CA

1,224 public highway bridges

Orange County Bridge Snapshot

Orange County, California contains 1,224 public highway bridges in the FHWA National Bridge Inventory. Roughly 35.3% are rated “Good,” 21.2% “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.

1,224

Total Bridges

35.3%

Good

2.2%

Poor

2.2%

Structurally Deficient

Condition Distribution

Good

35.3% (432)

Fair

21.2% (260)

Poor

2.2% (27)

SD

2.2% (27)

All Bridges (1,224)

Sort:

DYER RD-S55 ON RAM

Over: DYER ROAD STORM CHANNEL

12-ORA-055-R7.67-SA, Orange, CA

Built 1966 Load: 32.4 t ADT: 12,700

S55-DYER RD OFF RP

Over: DYER ROAD STORM CHANNEL

12-ORA-055-R7.75-SA, Orange, CA

Built 1966 Load: 32.4 t ADT: 7,600

STATE ROUTE 57

Over: LOFTUS DIVERSION CH

12-ORA-057-19.66-FUL, Orange, CA

Built 1970 Load: 32.4 t ADT: 245,000

STATE ROUTE 1

Over: N ARM NEWPORT BAY

12-ORA-001-R18.22-NPTB, Orange, CA

Built 1981 Load: 32.4 t ADT: 51,000

STATE ROUTE 1

Over: TALBERT CHANNEL

12-ORA-001-21.82-HNTB, Orange, CA

Built 1991 Load: 32.4 t ADT: 39,000

BARRANCA PKWY HOV

Over: INTERSTATE 5

12-ORA-005-22.81-IRVN, Orange, CA

Built 1991 Load: 32.4 t ADT: 2,354

STATE ROUTE 241

Over: TRABUCO CREEK

12-ORA-241-18.70-RSM, Orange, CA

Built 1995 Load: 32.4 t ADT: 9,150

STATE ROUTE 241

Over: TRABUCO CREEK

12-ORA-241-18.70-RSM, Orange, CA

Built 1995 Load: 32.4 t ADT: 9,150

STATE ROUTE 241

Over: UPPER OSO RESERVOIR

12-ORA-241-20.40-MSNV, Orange, CA

Built 1995 Load: 32.4 t ADT: 21,000

STATE ROUTE 241

Over: UPPER OSO RESERVOIR

12-ORA-241-20.40-MSNV, Orange, CA

Built 1995 Load: 32.4 t ADT: 21,000

SR 241 NB

Over: TOWNE CENTRE DR

12-ORA-241-23.62-LKFR, Orange, CA

Built 1993 Load: 32.4 t ADT: 21,500

SR 241 SB

Over: EQUESTRIAN TRAIL

12-ORA-241-22.39-LKFR, Orange, CA

Built 1993 Load: 32.4 t ADT: 36,000

SR 241 NB

Over: WILDLIFE UC

12-ORA-241-36.70-ANA, Orange, CA

Built 1998 Load: 32.4 t ADT: 22,500

S73-UNIVERSITY OFF

Over: SAN DIEGO CREEK

12-ORA-073-24.36-NPTB, Orange, CA

Built 1996 Load: 32.4 t ADT: 5,700

SR 133 SB

Over: BNSF RY,AMTRAK,METROLINK

12-ORA-133-9.77-IRVN, Orange, CA

Built 1998 Load: 32.4 t ADT: 35,000

SR133 NB

Over: BNSF RY,AMTRAK,METROLINK

12-ORA-133-9.77-IRVN, Orange, CA

Built 1998 Load: 32.4 t ADT: 35,000

SR 133 SB

Over: MARINE WAY

12-ORA-133-10.05-IRVN, Orange, CA

Built 1997 Load: 32.4 t ADT: 42,600

SR133 NB

Over: MARINE WAY

12-ORA-133-10.05-IRVN, Orange, CA

Built 1997 Load: 32.4 t ADT: 42,600

SR 241 SB

Over: WILDLIFE UC

12-ORA-241-35.60-ANA, Orange, CA

Built 1998 Load: 32.4 t ADT: 20,500

E91-S241 CONNECTOR

Over: SANTA ANA CANYON RD

12-ORA-091-R15.63-ANA, Orange, CA

Built 1998 Load: 32.4 t ADT: 6,632

ROUTE 261 SB

Over: HANDY CREEK RD

12-ORA-261-5.62-TUS, Orange, CA

Built 1998 Load: 32.4 t ADT: 14,500

I 5

Over: SANTA ANA RIVER

12-ORA-005-34.47-SA, Orange, CA

Built 1999 Load: 32.4 t ADT: 300,000

SR 241 SB

Over: SANTIAGO CREEK

12-ORA-241-33.70-RSM, Orange, CA

Built 1998 Load: 32.4 t ADT: 22,500

STATE ROUTE 74 WB

Over: SAN JUAN CREEK

12-ORA-074-R2.26-SJCP, Orange, CA

Built 2014 Load: 32.4 t ADT: 5,500

BROOKHURST STREET

Over: UP RR

12-ORA-000--ANA, Orange, CA

Built 2002 Load: 32.4 t ADT: 47,000

N55-S73 CONNECTOR

Over: BRISTOL ST

12-ORA-055-R4.58-CMS, Orange, CA

Built 2010 Load: 32.4 t ADT: 20,800

BONITA CANYON ROAD

Over: BONITA CREEK

12-ORA-073-22.52-NPTB, Orange, CA

Built 1996 Load: 32.4 t ADT: 10,000

SR 241 SB

Over: Wildlife

12-ORA-241-16.00-RSM, Orange, CA

Built 1998 Load: 32.4 t ADT: 4,050

SR 241 NB

Over: Wildlife

12-ORA-241-16.00-RSM, Orange, CA

Built 1998 Load: 32.4 t ADT: 4,050

STATE ROUTE 133 SB

Over: LITTLE SYCAMORE CREEK

12-ORA-133-M5.20, Orange, CA

Built 2004 Load: 32.4 t ADT: 28,500

STATE ROUTE 133 NB

Over: LITTLE SYCAMORE CREEK

12-ORA-133-M5.18, Orange, CA

Built 2004 Load: 32.4 t ADT: 28,500

W405(&S55)-BRISTOL

Over: SANTA ANA DELHI CHANNEL

12-ORA-405-9.38, Orange, CA

Built 2002 Load: 32.4 t ADT: 20,000

N73-S55 CONNECTOR

Over: SANTA ANA DELHI CHANNEL

12-ORA-073-R26.57-NPTB, Orange, CA

Built 1999 Load: 32.4 t ADT: 28,130

GENE AUTRY WAY

Over: SANTA CRUZ STREET

12-ORA-000--ANA, Orange, CA

Built 2000 Load: 32.4 t ADT: 3,000

S5&S57-W22 CONNECT

Over: SANTA ANA RV, HESPERIAN

12-ORA-005-34.48-SA, Orange, CA

Built 2008 Load: 32.4 t ADT: 16,285

CAMINO CAPISTRANO

Over: SAN JUAN CREEK CHANNEL

0.4 MI. S/O DEL OBISPO ST, Orange, CA

Built 1987 Load: 32.4 t ADT: 20,400

OSO PARKWAY

Over: BNSF RY,AMTRAK,METROLINK

0.1 MI WEST OF ROUTE I-5, Orange, CA

Built 1971 Load: 32.4 t ADT: 40,800

BREA CANYON BLVD.

Over: BREA CANYON CHANNEL

0.4 MI N/O CENTRAL AVENUE, Orange, CA

Built 1929 Load: 32.4 t ADT: 20,709

CRESCENT AVENUE

Over: MOODY CREEK CHANNEL

0.4 MI. W/O MOODY STREET, Orange, CA

Built 1957 Load: 32.4 t ADT: 12,000

SYCAMORE DRIVE

Over: SILVERADO CANYON CREEK

50' N/O SILVERADO CYN RD, Orange, CA

Built 1957 Load: 32.4 t ADT: 100

SANTA VITTORIA DR

Over: CANADA CHANNEL

0.2 MI S OF LAKE FOREST, Orange, CA

Built 1976 Load: 32.4 t ADT: 4,400

STANTON AVENUE

Over: FULLERTON CREEK CHANNEL

0.2 MI. N/O ORANGETHORPE, Orange, CA

Built 1958 Load: 32.4 t ADT: 16,766

W/B ALICIA PARKWAY

Over: SCRRA,BNSF RY,AMTRAK

0.20 MI SW/O JERONIMO RD, Orange, CA

Built 1976 Load: 32.4 t ADT: 21,500

WB TRABUCO ROAD

Over: ALISO CREEK

0.35 MI. E/O EL TORO ROAD, Orange, CA

Built 1975 Load: 32.4 t ADT: 16,500

EB TRABUCO ROAD

Over: ALISO CREEK

0.35 MI. E/O EL TORO ROAD, Orange, CA

Built 1975 Load: 32.4 t ADT: 16,500

BAKE PARKWAY

Over: SERRANO CREEK

100' NE/O TOLEDO WAY, Orange, CA

Built 1975 Load: 32.4 t ADT: 47,000

FASHION SQUARE LN.

Over: COYOTE CREEK CHANNEL

0.1 MI. E/O BEACH BLVD., Orange, CA

Built 1967 Load: 32.4 t ADT: 6,500

CAMINO CAPISTRANO

Over: TRABUCO CREEK CHANNEL

0.5 MI. N/O JUNIPERO S RD, Orange, CA

Built 1970 Load: 32.4 t ADT: 5,400

GILBERT ST

Over: BREA CREEK CHANNEL

100' S/O MALVERN AVE, Orange, CA

Built 1957 Load: 32.4 t ADT: 39,400

LA PALMA AVENUE

Over: CARBON CYN DIVERSION CHA

0.1 MI. E/O KRAEMER BLVD., Orange, CA

Built 1960 Load: 32.4 t ADT: 27,000

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