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)

Sort:

SR 73 SB

Over: LA PAZ ROAD

12-ORA-073-13.40-LGNG, Orange, CA

Built 1996 ADT: 15,000

SR 73 NB

Over: LA PAZ ROAD

12-ORA-073-13.40-LGNG, Orange, CA

Built 1996 ADT: 15,000

LA PAZ RD-N73 ONRP

Over: LA PAZ ROAD

12-ORA-073-13.40-LGNG, Orange, CA

Built 1996 ADT: 15,000

ALICIA PARKWAY

Over: STATE ROUTE 73

12-ORA-073-13.77-LGNG, Orange, CA

Built 1996 ADT: 50,000

ALISO CREEK ROAD

Over: SR 73 & RAMPS

12-ORA-073-14.39-LGNG, Orange, CA

Built 1996 ADT: 50,000

SR 73 SB

Over: ALISO VIEJO PKWY

12-ORA-073-14.84-LGNG, Orange, CA

Built 1996 ADT: 10,000

SR 73 NB

Over: ALISO VIEJO PKWY

12-ORA-073-14.84-LGNG, Orange, CA

Built 1996 ADT: 10,000

GLENWD/PACIFIC DR

Over: STATE ROUTE 73

12-ORA-073-15.25-LGNG, Orange, CA

Built 1996 ADT: 61,000

SR 73 SB

Over: NEWPORT COAST DRIVE

12-ORA-073-21.53-IRVN, Orange, CA

Built 1996 ADT: 20,000

SR 73 NB

Over: NEWPORT COAST DRIVE

12-ORA-073-21.53-IRVN, Orange, CA

Built 1996 ADT: 20,000

NEWPORT COAST DR

Over: NEWPORT COAST DR-N37 ON

12-ORA-073-21.53-IRVN, Orange, CA

Built 1996 ADT: 4,070

S73-BONITA CYN OFF

Over: BONITA CANYON DRIVE

12-ORA-073-22.50-IRVN, Orange, CA

Built 1996 ADT: 10,000

SR 73 SB

Over: BONITA CANYON DRIVE

12-ORA-073-22.50-IRVN, Orange, CA

Built 1996 ADT: 10,000

SR 73 NB

Over: BONITA CANYON DRIVE

12-ORA-073-22.50-IRVN, Orange, CA

Built 1996 ADT: 10,000

BONITA CYN-N73 ON

Over: BONITA CANYON DRIVE

12-ORA-073-22.50-IRVN, Orange, CA

Built 1996 ADT: 10,000

BISON AVE

Over: STATE ROUTE 73

12-ORA-073-23.46-IRVN, Orange, CA

Built 1996 ADT: 66,000

N5-JAMBOREE OFF-RA

Over: STATE ROUTE 261

12-ORA-005-27.50-IRVN, Orange, CA

Built 1998 ADT: 34,600

BRYAN AVENUE

Over: STATE ROUTE 261

12-ORA-261-1.20-TUS, Orange, CA

Built 1998 ADT: 29,000

IRVINE BOULEVARD

Over: STATE ROUTE 261

12-ORA-261-1.60-TUS, Orange, CA

Built 1997 ADT: 29,000

PORTOLA PARKWAY

Over: STATE ROUTE 261

12-ORA-261-3.50-TUS, Orange, CA

Built 1997 ADT: 29,000

IRVINE CENTER DR

Over: S133 OFF RAMP

12-ORA-005-23.09-IRVN, Orange, CA

Built 1998 ADT: 3,744

S133-BARRANCA PKWY

Over: S5-S133 CONNECTOR RAMP

12-ORA-133-M9.35-IRVN, Orange, CA

Built 1996 ADT: 6,840

S133-S5 CONNECTOR

Over: INTERSTATE 5, ST RTE 133

12-ORA-133-M9.40-IRVN, Orange, CA

Built 1998 ADT: 37,700

STATE ROUTE 133 SB

Over: INTERSTATE 5 & CONNECTOR

12-ORA-133-9.53-IRVN, Orange, CA

Built 1996 ADT: 8,072

STATE ROUTE 133 NB

Over: INTERSTATE 5 & CONNECTOR

12-ORA-133-9.53-IRVN, Orange, CA

Built 1996 ADT: 243,700

S5-N133 CONN

Over: SAND, I5, MR. WY, SR133

12-ORA-005-R24.06-IRVN, Orange, CA

Built 1998 ADT: 9,758

S133-N5 CONNECTOR

Over: RAMPS & LOCAL STREETS

12-ORA-133-10.30-IRVN, Orange, CA

Built 1998 ADT: 16,514

TRABUCO ROAD

Over: STATE ROUTE 133

12-ORA-133-10.90-IRVN, Orange, CA

Built 1997 ADT: 48,400

IRVINE BLVD

Over: STATE ROUTE 133

12-ORA-133-11.90-IRVN, Orange, CA

Built 1997 ADT: 51,700

ROUTE 133 SB

Over: PORTOLA PARKWAY

12-ORA-133-12.55-IRVN, Orange, CA

Built 1998 ADT: 11,000

ROUTE 133 NB

Over: PORTOLA PARKWAY

12-ORA-133-12.55-IRVN, Orange, CA

Built 1998 ADT: 11,000

N241-S133 CONNECTR

Over: STATE ROUTE 241

12-ORA-241-26.87-IRVN, Orange, CA

Built 1998 ADT: 48,000

BEE CANYON RD

Over: SR 241 & CONNECTOR

12-ORA-241-27.39-IRVN, Orange, CA

Built 1997 ADT: 36,000

N241-W91 CONNECTOR

Over: STATE ROUTE 91

12-ORA-241-38.76-ANA, Orange, CA

Built 1998 ADT: 17,700

N241-E91 CONNECTOR

Over: SR 91 RAMPS & GYPSUM CYN

12-ORA-241-38.84-ANA, Orange, CA

Built 1998 ADT: 2,500

W91-S241 CONNECTOR

Over: STATE ROUTE 91

12-ORA-091-R16.31-ANA, Orange, CA

Built 1998 ADT: 2,460

JAMBOREE-S73 ON RA

Over: S73-UNIVERSITY DR OFF-RP

12-ORA-073-24.70-NPTB, Orange, CA

Built 1996 ADT: 5,700

CHAPMAN AVENUE

Over: STATE ROUTE 261

12-ORA-261-6.05-ORA, Orange, CA

Built 1997 ADT: 29,000

SANTIAGO CANYON RD

Over: STATE ROUTE 241

12-ORA-241-32.37-RSM, Orange, CA

Built 1997 ADT: 36,000

SANTIAGO-N241 ONRA

Over: STATE ROUTE 241

12-ORA-241-32.52-RSM, Orange, CA

Built 1997 ADT: 36,000

INTERSTATE 5

Over: CHAPMAN AVE

12-ORA-005-34.83-TUS, Orange, CA

Built 2000 ADT: 35,000

INTERSTATE 5

Over: STATE COLLEGE BLVD

12-ORA-005-35.19-ANA, Orange, CA

Built 2000 ADT: 34,000

S5-STATE COL OFF-R

Over: ORANGEWOOD AVE

12-ORA-005-35.42-ANA, Orange, CA

Built 2000 ADT: 4,640

INTERSTATE 5

Over: ORANGEWOOD AVE

12-ORA-005-35.59-ANA, Orange, CA

Built 2000 ADT: 29,000

GENE AUTRY WAY

Over: INTERSTATE 5 SB

12-ORA-005-35.92-ANA, Orange, CA

Built 2000 ADT: 267,000

HOV-GENE AUTRY WAY

Over: INTERSTATE 5 NB

12-ORA-005-35.92-ANA, Orange, CA

Built 2000 ADT: 267,000

ANAHEIM-N5 ON-RAMP

Over: N5-KATELLE OFF-RAMP

12-ORA-005-36.05-ANA, Orange, CA

Built 2000 ADT: 16,331

INTERSTATE 5

Over: KATELLA AVENUE

12-ORA-005-36.15-ANA, Orange, CA

Built 2000 ADT: 31,000

S5-KATELLA OFF-RP

Over: KATELLA AVENUE

12-ORA-005-36.15-ANA, Orange, CA

Built 2000 ADT: 31,000

S5-ORANGEWOOD AVE

Over: KATELLA AVE

12-ORA-005-36.15-ANA, Orange, CA

Built 2000 ADT: 31,000

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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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.