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:

JEFFREY TRAIL

Over: TRABUCO ROAD

230 FT. E/O JEFFREY ROAD, Orange, CA

Built 2014 ADT: 13,200

PORTOLA SPRINGS TR

Over: PORTOLA PARKWAY

0.3 MI E/O PORTOLA SPRING, Orange, CA

Built 2015 ADT: 4,500

RIDGE VALLEY TRAIL

Over: IRVINE BOULEVARD

100 FT. E/O RIDGE VALLEY, Orange, CA

Built 2016 ADT: 23,800

WALNUT TRAIL

Over: JEFFERY ROAD

0.31 MI. S/O WALNUT AVE., Orange, CA

Built 2012 ADT: 42,900

CHIQUITA CYN DR

Over: PATRONES PKWY

3.3 M S/O OSO PRWY, Orange, CA

Built 2018 ADT: 400

BASQUE AVE

Over: BREA CREEK CHANNEL

100' S/O MALVERN AVE, Orange, CA

Built 1940 Load: 14.9 t ADT: 8,000

BROADWAY

Over: SUNSET CHANNEL

100' NE/O PACIFIC CST HWY, Orange, CA

Built 1959 Load: 14.9 t ADT: 2,500

WARLAND DRIVE

Over: BOLSA CHICA CHANNEL

0.2 MI. W/O VALLEY VIEW, Orange, CA

Built 1991 Load: 14.9 t ADT: 2,000

UNION AVE

Over: BREA CREEK CHANNEL

0.1 MI E/O HARBOR BLVD, Orange, CA

Built 1939 Load: 15.2 t ADT: 2,000

GOLDEN AVENUE

Over: CARBON CANYON CHANNEL

0.2 MI W/O ROSE DRIVE, Orange, CA

Built 1934 Load: 15.6 t ADT: 3,700

HARBOR BLVD

Over: BREA CREEK CHANNEL

0.1 MI N/O CHAPMAN AVE, Orange, CA

Built 1930 Load: 15.6 t ADT: 40,100

YORBA PLACE

Over: CARBON CANYON CHANNEL

0.1 MI E/O YORBA LINDA BL, Orange, CA

Built 1912 Load: 15.6 t ADT: 1,000

STATE ROUTE 74

Over: SAN JUAN CANYON

12-ORA-074-13.29-SJCP, Orange, CA

Built 1929 Load: 16.2 t ADT: 9,800

GLASSELL STREET

Over: SANTA ANA RIVER CHANNEL

0.3 MI S/O ROUTE 91 FWY, Orange, CA

Built 1963 Load: 16.8 t ADT: 22,000

CULVER DRIVE

Over: SAN DIEGO CREEK CHANNEL

0.2 MI S BARRANCA PKY, Orange, CA

Built 1971 Load: 16.8 t ADT: 47,700

DARLINGTON AVENUE

Over: BREA CREEK CHANNEL

100' N/O FRANKLIN STREET, Orange, CA

Built 1950 Load: 17.2 t ADT: 1,205

AMAPOLA AVENUE

Over: HANDY CREEK

0.2 MI E/O ORANGE PK BLVD, Orange, CA

Built 1937 Load: 17.5 t ADT: 1,000

GRAHAM STREET

Over: E GRDN GRVE-WNTERBG CHAN

0.4 MI S/O WARNER AVE, Orange, CA

Built 1961 Load: 18.5 t ADT: 8,000

LA MIRADA BLVD.

Over: COYOTE CREEK CHANNEL

0.2 MI. NW/O BEACH BLVD., Orange, CA

Built 1950 Load: 19.1 t ADT: 24,000

STATE ROUTE 55

Over: NEWPORT BEACH CHANNEL

12-ORA-055-0.18-NPTB, Orange, CA

Built 1936 Load: 19.8 t ADT: 47,000

WALKER STREET

Over: CARBON CREEK CHANNEL

0.1 MI. S/O BALL ROAD, Orange, CA

Built 1958 Load: 19.8 t ADT: 16,820

BREA CANYON BLVD.

Over: BREA CANYON CHANNEL

0.6 MI N/O CENTRAL AVENUE, Orange, CA

Built 1930 Load: 20.7 t ADT: 20,709

N/B MOULTON PKWY

Over: ALISO CREEK

1.5 MI S EL TORO RD, Orange, CA

Built 1969 Load: 21.4 t ADT: 11,000

SILVERADO CANYN RD

Over: LADD CANYON

2.2 MI. E/O SANTIAGO ROAD, Orange, CA

Built 1947 Load: 22.4 t ADT: 2,000

MODJESKA CANYON RD

Over: SANTIAGO CREEK

0.1 MI N/O MODJESKA GR RD, Orange, CA

Built 1935 Load: 23.0 t ADT: 1,000

MAIN STREET W/B

Over: SAN DIEGO CREEK CHANNEL

0.3 MI E JAMBOREE RD, Orange, CA

Built 1969 Load: 23.3 t ADT: 8,700

INTERSTATE 5

Over: BNSF RY,AMTRAK,METROLINK

12-ORA-005-16.36-LGNH, Orange, CA

Built 1959 Load: 23.7 t ADT: 344,000

SILVERADO CANYN RD

Over: SILVERADO CANYON CREEK

4.4 MI. E/O SANTIAGO ROAD, Orange, CA

Built 1947 Load: 23.7 t ADT: 2,000

ADAMS AVENUE

Over: TALBERT CHANNEL

0.25 MI E/O MAGNOLIA ST, Orange, CA

Built 1959 Load: 24.3 t ADT: 32,000

SILVERADO CNYN RD.

Over: SILVERADO CANYON CREEK

1.6 MI E/O SANTIAGO ROAD, Orange, CA

Built 1935 Load: 24.3 t ADT: 2,000

THISA WAY

Over: SILVERADO CANYON CREEK

200' S/O SILVERADO CYN RD, Orange, CA

Built 1965 Load: 24.3 t ADT: 200

PASEO DE VALENCIA

Over: ALISO CREEK

0.8 MI N OF ALICIA PKWY, Orange, CA

Built 1966 Load: 24.3 t ADT: 32,800

MOULTON PARKWAY

Over: ALICIA CREEK

200' NW ALICIA PKWAY, Orange, CA

Built 1968 Load: 24.3 t ADT: 20,900

MOULTON PARKWAY

Over: PEDESTRIAN & BIKE ACCESS

200' N OF LA PAZ RD, Orange, CA

Built 1968 Load: 24.3 t ADT: 21,000

BERKLEY AVE

Over: BREA CREEK CHANNEL

0.1 MI E/O HARBOR BLVD, Orange, CA

Built 1966 Load: 24.3 t ADT: 12,900

DOROTHY LN

Over: FULLERTON CRK CHANNEL

0.05 MI E/O ACACIA AVE, Orange, CA

Built 1955 Load: 24.3 t ADT: 7,200

JEFFERSON STREET

Over: ATWOOD CHANNEL

0.1 MI. S/O ORANGETHORPE, Orange, CA

Built 1965 Load: 24.3 t ADT: 5,900

VAN BUREN STREET

Over: CARBON CREEK CHANNEL

0.1 MI. S/O ORANGETHORPE, Orange, CA

Built 1965 Load: 24.3 t ADT: 4,300

ASSOCIATED ROAD

Over: LOFTUS DIVERSION CHANNEL

0.3 MI. N/O IMPERIAL HWY., Orange, CA

Built 1968 Load: 24.3 t ADT: 11,000

CYPRESS STREET

Over: COYOTE CREEK CHANNEL

0.1 MI. N/O LAMBERT ROAD, Orange, CA

Built 1965 Load: 24.3 t ADT: 5,500

STATE COLLEGE BLVD

Over: CARBON CREEK CHANNEL

0.15 MI S/O ORANGETHORPE, Orange, CA

Built 1969 Load: 24.3 t ADT: 35,300

ALTON AVENUE

Over: SANTA ANA DELHI CHANNEL

100' E/O FLOWER ST, Orange, CA

Built 1970 Load: 24.3 t ADT: 5,000

MACARTHUR BLVD

Over: SANTA ANA DELHI CHANNEL

100' E/O FLOWER ST, Orange, CA

Built 1971 Load: 24.3 t ADT: 34,000

MAC ARTHUR BLVD

Over: GREENVILLE-BANNING CHAN

0.5 MI E/O HARBOR BLVD, Orange, CA

Built 1962 Load: 24.3 t ADT: 29,000

BANNING AVENUE

Over: TALBERT CHANNEL

0.25 MI W/O BUSHARD ST, Orange, CA

Built 1959 Load: 24.3 t ADT: 3,000

INDIANAPOLIS AVENU

Over: TALBERT CHANNEL

0.25 MI W/O BUSHARD ST, Orange, CA

Built 1970 Load: 24.3 t ADT: 8,000

CALLE DELOS MOLINO

Over: SEGUNDA DESHECHA CANADA

0.1 MI S/O AVENIDA PICO, Orange, CA

Built 1971 Load: 24.3 t ADT: 8,000

AVENIDA VAQUERO

Over: PRIMA DESHECHA CANADA

0.1 MI E/O CMNO D L MARES, Orange, CA

Built 1970 Load: 24.3 t ADT: 6,000

CALLE NUEVO

Over: PRIMA DESHECHA CANADA

.08 MI E/O CMNO D L MARES, Orange, CA

Built 1972 Load: 24.3 t ADT: 1,000

GREENBRIAR LANE

Over: LOFTUS DIVERSION CHANNEL

100' NW/O ASSOCIATED RD., Orange, CA

Built 1968 Load: 24.3 t ADT: 5,000

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