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:

STATE ROUTE 91

Over: ORANGETHORPE AVE

12-ORA-091-R0.54-LPMA, Orange, CA

Built 1969 ADT: 30,000

MAIN STREET

Over: STATE ROUTE 55

12-ORA-055-10.54-TUS, Orange, CA

Built 1962 ADT: 42,200

N55-W91 CONNECTOR

Over: SR 55 & 55-91 FAST-TRACK

12-ORA-055-R17.67-ANA, Orange, CA

Built 1961 ADT: 228,000

ROUTE 55

Over: KATELLA AVE

12-ORA-055-15.24-ORA, Orange, CA

Built 1961 ADT: 40,300

STATE ROUTE 55

Over: TAFT AVENUE

12-ORA-055-15.75-ORA, Orange, CA

Built 1961 ADT: 8,400

STATE ROUTE 55

Over: LINCOLN AVE

12-ORA-055-16.98-ORA, Orange, CA

Built 1961 ADT: 20,300

N55-W91 CONNECTOR

Over: STATE ROUTE 91

12-ORA-055-R17.76-ANA, Orange, CA

Built 1962 ADT: 216,000

STATE ROUTE 55

Over: N55-W22 CONNECTOR RAMP

12-ORA-055-12.93-TUS, Orange, CA

Built 1962 ADT: 34,875

STATE ROUTE 57

Over: UP RR & DOUGLASS RD

12-ORA-057-12.98-ANA, Orange, CA

Built 1974 ADT: 3,000

STATE ROUTE 22

Over: UP RR & HOOVER STREET

12-ORA-022-R3.20-WTM, Orange, CA

Built 1964 ADT: 9,000

STATE ROUTE 22

Over: THE CITY DRIVE

12-ORA-022-R9.73-ORA, Orange, CA

Built 1963 ADT: 20,000

STATE ROUTE 22

Over: BRISTOL STREET

12-ORA-022-R10.01-SA, Orange, CA

Built 1963 ADT: 17,000

S5&S57-W22 CONN

Over: S57-BRISTOL ST OFF-RAMP

12-ORA-005-34.38-SA, Orange, CA

Built 1963 ADT: 8,600

LAKEVIEW AVE

Over: IMPERIAL HIGHWAY

12-ORA-090-8.08-YBLN, Orange, CA

Built 1962 ADT: 49,700

STATE ROUTE 22

Over: NEWLAND STREET

12-ORA-022-R4.22-GGR, Orange, CA

Built 1964 ADT: 8,000

N5-N57 CONNECTOR

Over: W22-N5 CONNECTOR

12-ORA-005-34.40-ORA, Orange, CA

Built 1976 ADT: 24,567

BEDFORD ROAD

Over: STATE ROUTE 22

12-ORA-022-R10.87-SA, Orange, CA

Built 1963 ADT: 150,000

STATE ROUTE 22

Over: N5-W22 CONNECTOR RAMP

12-ORA-022-R10.59-ORA, Orange, CA

Built 1963 ADT: 16,200

MAIN ST

Over: STATE ROUTE 22

12-ORA-022-R10.99-SA, Orange, CA

Built 1963 ADT: 150,000

STATE ROUTE 22

Over: KNOTT AVE

12-ORA-022-R2.69-GGR, Orange, CA

Built 1966 ADT: 27,000

STATE ROUTE 22

Over: GARDEN GROVE BLVD

12-ORA-022-R2.74-GGR, Orange, CA

Built 1966 ADT: 25,000

STATE ROUTE 22

Over: SR 39 (BEACH BLVD)

12-ORA-022-R3.57-WTM, Orange, CA

Built 1964 ADT: 90,000

STATE ROUTE 22

Over: YOCKEY STREET

12-ORA-022-R4.53-GGR, Orange, CA

Built 1965 ADT: 5,000

STATE ROUTE 22

Over: TRASK AVE

12-ORA-022-R4.62-GGR, Orange, CA

Built 1965 ADT: 15,000

STATE ROUTE 22

Over: TAFT STREET

12-ORA-022-R6.57-GGR, Orange, CA

Built 1965 ADT: 7,000

STATE ROUTE 22

Over: NEWHOPE STREET

12-ORA-022-R7.31-GGR, Orange, CA

Built 1965 ADT: 12,000

STATE ROUTE 22

Over: TRASK AVE

12-ORA-022-R7.68-GGR, Orange, CA

Built 1965 ADT: 15,000

STATE ROUTE 22

Over: GARDEN GROVE BLVD

12-ORA-022-R8.82-GGR, Orange, CA

Built 1965 ADT: 28,000

STATE ROUTE 22

Over: PARKER STREET

12-ORA-022-R11.42-ORA, Orange, CA

Built 1967 ADT: 3,500

STATE ROUTE 22

Over: GLASSELL STREET

12-ORA-022-R11.84-ORA, Orange, CA

Built 1967 ADT: 11,000

CAMBRIDGE STREET

Over: STATE ROUTE 22

12-ORA-022-R12.36-SA, Orange, CA

Built 1967 ADT: 150,000

TUSTIN AVE

Over: STATE ROUTE 22

12-ORA-022-R12.87-ORA, Orange, CA

Built 1967 ADT: 150,000

STATE ROUTE 22 EB

Over: TUSTIN AVENUE

12-ORA-022-R12.85-ORA, Orange, CA

Built 1967 ADT: 11,000

STATE ROUTE 55

Over: EDINGER AVE

12-ORA-055-R9.44-SA, Orange, CA

Built 1964 ADT: 38,484

WARNER AVE

Over: STATE ROUTE 55

12-ORA-055-R8.50-SA, Orange, CA

Built 1988 ADT: 288,600

SPRINGDALE ST

Over: STATE ROUTE 22

12-ORA-022-R1.93-WTM, Orange, CA

Built 1966 ADT: 30,000

STATE ROUTE 57

Over: BNSF RY,AMTRAK,METROLINK

12-ORA-057-12.27-ANA, Orange, CA

Built 1976 ADT: 3,000

STATE ROUTE 57

Over: KATELLA AVE

12-ORA-057-12.54-ANA, Orange, CA

Built 1974 ADT: 20,000

PEDESTRIAN WALKWAY

Over: STATE ROUTE 91

12-ORA-091-R1.32-BPK, Orange, CA

Built 1969 ADT: 265,000

KRAEMER BLVD

Over: STATE ROUTE 91

12-ORA-091-7.37-ANA, Orange, CA

Built 1964 ADT: 213,000

INTERSTATE 605

Over: KATELLA AVE

12-ORA-605-R1.41-LALM, Orange, CA

Built 1966 ADT: 15,000

S605-KATELLA OFF R

Over: KATELLA AVE

12-ORA-605-R1.41-LALM, Orange, CA

Built 1966 ADT: 15,000

N605-KATELLA OFF R

Over: KATELLA AVE

12-ORA-605-R1.41-LALM, Orange, CA

Built 1966 ADT: 15,000

STATE ROUTE 55

Over: DYER RD

12-ORA-055-R7.87-SA, Orange, CA

Built 1966 ADT: 38,506

STATE ROUTE 55

Over: MACARTHUR BLVD

12-ORA-055-R6.99-SA, Orange, CA

Built 1966 ADT: 20,000

INTERSTATE 605 SB

Over: INTERSTATE 405

12-ORA-605-3.48-SLB, Orange, CA

Built 1966 ADT: 255,000

S405-N605 CONN

Over: RTE 405, 605, CONN, RIV

12-ORA-405-24.11-SLB, Orange, CA

Built 1966 ADT: 11,656

TUSTIN AVE

Over: STATE ROUTE 91

12-ORA-091-8.39-ANA, Orange, CA

Built 1967 ADT: 213,000

INTERSTATE 605

Over: E22-N405 CONNECTOR RAMP

12-ORA-605-R0.16-LALM, Orange, CA

Built 1966 ADT: 12,000

STATE ROUTE 55

Over: MAIN STREET

12-ORA-055-R6.39-SA, Orange, CA

Built 1966 ADT: 15,000

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