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.
Condition Distribution
All Bridges (1,224)
STATE ROUTE 55
UnknownOver: PAULARINO AVE
12-ORA-055-R5.52-CMS, Orange, CA
LA PALMA AVE
UnknownOver: STATE ROUTE 91
12-ORA-091-6.42-ANA, Orange, CA
SR 55
UnknownOver: BAKER STREET
12-ORA-055-R5.34-CMS, Orange, CA
S405-N55 CONNECTOR
UnknownOver: I 405 & N405-S55 CONN
12-ORA-405-8.65-IRVN, Orange, CA
N405-S55 CONN RAMP
UnknownOver: I 405 & S405-N55 CONN
12-ORA-405-8.85-CMS, Orange, CA
SR 55
UnknownOver: S405-N55 CONNECTOR
12-ORA-055-R5.89-CMS, Orange, CA
ROUTE 55
UnknownOver: N405-S55 CONNECTOR
12-ORA-055-R6.06-CMS, Orange, CA
E22-N605&405 CONN
UnknownOver: S605-S405 CONNECTOR
12-ORA-022-R0.38-SLB, Orange, CA
RIVERDALE AVE
UnknownOver: STATE ROUTE 91
12-ORA-091-8.80-ANA, Orange, CA
E22-N605 & N405
UnknownOver: STATE ROUTE 22
12-ORA-022-R0.37-SLB, Orange, CA
BRISTOL ST
UnknownOver: INTERSTATE 405
12-ORA-405-9.51-CMS, Orange, CA
BEAR ST
UnknownOver: INTERSTATE 405
12-ORA-405-9.89-CMS, Orange, CA
N73-N405 CONNECTOR
UnknownOver: INTERSTATE 405
12-ORA-073-R27.76R-CMS, Orange, CA
S405-S73 CONNECTOR
UnknownOver: FAIRVIEW RD-S405 ON-RAMP
12-ORA-405-10.35-CMS, Orange, CA
N405-S55 CONNECTOR
UnknownOver: S55-PAULARINO AVE OFF-RP
12-ORA-405-8.88-CMS, Orange, CA
PAULARINO-N55 ONRP
UnknownOver: N55-S405 CONNECTOR RAMP
12-ORA-055-R5.80-CMS, Orange, CA
S55-S405 CONNECTOR
UnknownOver: I 405, SR 55 & CONNS
12-ORA-055-R6.16-CMS, Orange, CA
MACARTHUR BLVD
UnknownOver: INTERSTATE 405
12-ORA-405-7.80-IRVN, Orange, CA
MACARTHUR BLVD
UnknownOver: INTERSTATE 405
12-ORA-405-7.80-IRVN, Orange, CA
IRVINE CENTER DR
UnknownOver: INTERSTATE 405
12-ORA-405-0.95-IRVN, Orange, CA
SAND CANYON AVE
UnknownOver: INTERSTATE 405
12-ORA-405-2.88-IRVN, Orange, CA
CROWN VALLEY PKWY
UnknownOver: INTERSTATE 5
12-ORA-005-13.78-MSNV, Orange, CA
STATE ROUTE 57
UnknownOver: STATE ROUTE 91
12-ORA-057-15.58-ANA, Orange, CA
S57-E91 CONNECTOR
UnknownOver: STATE ROUTE 91
12-ORA-057-15.59-ANA, Orange, CA
N57-W91 CONN RAMP
UnknownOver: STATE ROUTE 91
12-ORA-057-15.57-ANA, Orange, CA
E91-N57 CONNECTOR
UnknownOver: SR 91 & SR 57
12-ORA-091-5.96-ANA, Orange, CA
W91-S57 CONNECTOR
UnknownOver: ROUTES 91, 57, & CONN'S
12-ORA-091-6.16-ANA, Orange, CA
N133-N405 CONNECTR
UnknownOver: INTERSTATE 405 & RAMP
12-ORA-133-8.34-IRVN, Orange, CA
N133-N405 CONNECTR
UnknownOver: STATE ROUTE 133
12-ORA-133-8.47-IRVN, Orange, CA
N5-N405 CONNECTOR
UnknownOver: INTERSTATE 5
12-ORA-005-21.31-IRVN, Orange, CA
STATE ROUTE 57
UnknownOver: CHAPMAN AVE
12-ORA-057-17.30-FUL, Orange, CA
STATE ROUTE 57
UnknownOver: CROWTHER AVE
12-ORA-057-16.74-PLCN, Orange, CA
STATE ROUTE 57
UnknownOver: ORANGETHORPE AVE
12-ORA-057-16.39-PLCN, Orange, CA
STATE ROUTE 57
UnknownOver: PLACENTIA AVE
12-ORA-057-17.02-PLCN, Orange, CA
AVENIDA MENDOCINO
UnknownOver: INTERSTATE 5
12-ORA-005-1.13-SCLE, Orange, CA
STATE ROUTE 57
UnknownOver: NUTWOOD AVE
12-ORA-057-17.57-FUL, Orange, CA
STATE ROUTE 57
UnknownOver: BASTANCHURY ROAD
12-ORA-057-18.85-FUL, Orange, CA
STATE ROUTE 57
UnknownOver: ASSOCIATED ROAD
12-ORA-057-19.58-FUL, Orange, CA
YORBA LINDA BLVD
UnknownOver: STATE ROUTE 57
12-ORA-057-18.34-FUL, Orange, CA
SR 90 (IMPERIAL)
UnknownOver: STATE ROUTE 57
12-ORA-090-R5.43-BRE, Orange, CA
STATE ROUTE 57
UnknownOver: LA PALMA AVE
12-ORA-057-15.41-ANA, Orange, CA
N57-E91 CONNECTOR
UnknownOver: LA PALMA AVE
12-ORA-057-15.41-ANA, Orange, CA
E91-MAGNOLIA AV OF
UnknownOver: UP RR, S5-MAGNOLIA AV OF
12-ORA-091-R3.64R-FUL, Orange, CA
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 91
12-ORA-091-R0.02-LPMA, Orange, CA
STATE ROUTE 91
UnknownOver: STATE ROUTE 90
12-ORA-091-R11.53-ANA, Orange, CA
LAKEVIEW AVE
UnknownOver: STATE ROUTE 91
12-ORA-091-R10.09-ANA, Orange, CA
STATE ROUTE 57
UnknownOver: ORANGEWOOD AVE
12-ORA-057-11.80-ANA, Orange, CA
STATE ROUTE 57
UnknownOver: ROLLING HILLS DR
12-ORA-057-19.33-FUL, Orange, CA
STATE ROUTE 57
UnknownOver: BIRCH STREET
12-ORA-057-20.38-BRE, Orange, CA
STATE ROUTE 57
UnknownOver: LAMBERT ROAD
12-ORA-057-20.88-BRE, Orange, CA
Read our methodology - how this data is sourced, computed, and verified.
Related
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.