San Diego County, CA

1,707 public highway bridges

San Diego County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, San Diego County, California contains 1,707 public highway bridges. Roughly 29.5% are rated “Good,” 20% “Fair,” and 1.6% “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.

1,707

Total Bridges

29.5%

Good

20%

Fair

1.6%

Poor Condition

Condition Distribution

Good

29.5% (504)

Fair

20% (341)

Poor

1.6% (27)

All Bridges (1,707)

Sort:

COOK OVERCROSSING

Over: ROUTE 5

11-SD-005-R58.53-OCN, San Diego, CA

Built 1988 ADT: 132,000

E94-HOME AV OFFRMP

Over: I 15, N15-E92, CHOLLAS

11-SD-094-3.13-SD, San Diego, CA

Built 1990 ADT: 121,000

STATE ROUTE 163

Over: SAN DIEGO RI,W8-N163,CAM

11-SD-163-3.94-SD, San Diego, CA

Built 1989 ADT: 13,440

STATE ROUTE 52 WB

Over: MAST BL, SAN DIEGO RIVER

11-SD-052-13.80-SNT, San Diego, CA

Built 1993 ADT: 10,700

STATE ROUTE 52 EB

Over: MAST BL, SAN DIEGO RIVER

11-SD-052-13.80-SNT, San Diego, CA

Built 1993 ADT: 10,700

WAKARUSA STREET

Over: ROUTE 125

11-SD-125-18.33-LMSA, San Diego, CA

Built 1992 ADT: 39,000

W8-S163 CONNECTOR

Over: I 8 & SR 163, & CONNS

11-SD-008-2.36-SD, San Diego, CA

Built 1991 ADT: 200,000

E&W8-N125 CONNECT

Over: N125-W8 CONN & MURRAY DR

11-SD-008-12.30-LMSA, San Diego, CA

Built 1992 ADT: 14,500

W56-S5 CONN RAMP

Over: I 5, SORRENTO VLY,CARMEL

11-SD-056-0.01-SD, San Diego, CA

Built 1998 ADT: 6,350

N5-E56 CONNECTOR

Over: CARMEL VALLEY RD EB

11-SD-005-R32.87-SD, San Diego, CA

Built 1998 ADT: 6,350

CARMEL MTN-N5 ON

Over: CARMEL VALLEY RD

11-SD-005-R32.88-SD, San Diego, CA

Built 1998 ADT: 12,700

WIGHTMAN ST

Over: INTERSTATE 15 & RAMPS

11-SD-015-M4.53-SD, San Diego, CA

Built 1995 ADT: 170,000

UNIVERSITY AVE

Over: INTERSTATE 15

11-SD-015-M4.66-SD, San Diego, CA

Built 1999 ADT: 170,000

ORANGE AVENUE

Over: INTERSTATE 15

11-SD-015-M4.91-SD, San Diego, CA

Built 2001 ADT: 170,000

EL CAJON BLVD

Over: INTERSTATE 15

11-SD-015-M5.04-SD, San Diego, CA

Built 1999 ADT: 185,000

MEADE AVE

Over: INTERSTATE 15

11-SD-015-M5.17-SD, San Diego, CA

Built 1999 ADT: 185,000

SANTO ROAD

Over: STATE ROUTE 52

11-SD-052-8.70-SD, San Diego, CA

Built 1993 ADT: 102,000

REO DRIVE

Over: ROUTE 54

11-SD-054-3.00-NATC, San Diego, CA

Built 1993 ADT: 124,000

WOODMAN STREET

Over: ROUTE 54

11-SD-054-4.21-NATC, San Diego, CA

Built 1996 ADT: 115,000

BRIARWOOD ROAD

Over: STATE ROUTE 54

11-SD-054-5.00-NATC, San Diego, CA

Built 1996 ADT: 100,000

STATE ROUTE 56 WB

Over: EL CAMINO REAL

11-SD-056-0.33-SD, San Diego, CA

Built 1998 ADT: 22,350

STATE ROUTE 56 EB

Over: EL CAMINO REAL

11-SD-056-0.33-SD, San Diego, CA

Built 1998 ADT: 22,350

CARMEL CREEK RD

Over: STATE ROUTE 56

11-SD-056-0.82-SD, San Diego, CA

Built 1994 ADT: 44,500

CARMEL COUNTRY RD

Over: STATE ROUTE 56

11-SD-056-1.81-SD, San Diego, CA

Built 1994 ADT: 44,500

BLACK MOUNTAIN RD

Over: STATE ROUTE 56

11-SD-056-6.90-SD, San Diego, CA

Built 2004 ADT: 54,000

SALMON RIVER ROAD

Over: STATE ROUTE 56

11-SD-056-7.30-SD, San Diego, CA

Built 1993 ADT: 34,000

W56-RANCHO PENSQTS

Over: RANCHO PENASQUITOS BLVD

11-SD-056-7.80-SD, San Diego, CA

Built 1993 ADT: 31,220

SR 56 WB

Over: RANCHO PENASQUITOS BLVD

11-SD-056-7.80-SD, San Diego, CA

Built 1993 ADT: 31,220

SR 56 EB

Over: RANCHO PENASQUITOS BLVD

11-SD-056-7.80-SD, San Diego, CA

Built 1993 ADT: 31,220

STATE ROUTE 52 WB

Over: MAST BOULEVARD

11-SD-052-13.30-SD, San Diego, CA

Built 1993 ADT: 27,000

STATE ROUTE 52 EB

Over: MAST BOULEVARD

11-SD-052-13.30-SD, San Diego, CA

Built 1993 ADT: 27,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 15 & RAMPS

11-SD-015-M5.30-SD, San Diego, CA

Built 2000 ADT: 185,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 15 & RAMPS

11-SD-015-M4.38-SD, San Diego, CA

Built 2000 ADT: 171,000

STATE ROUTE 76 WB

Over: EL CAMINO REAL

11-SD-076-R3.41-OCN, San Diego, CA

Built 1999 ADT: 5,000

STATE ROUTE 76 WB

Over: MISSION AVE

11-SD-076-R4.55-OCN, San Diego, CA

Built 1999 ADT: 5,000

E52-S125 CONNECTOR

Over: PROSPECT AVENUE

11-SD-052-15.05-SNT, San Diego, CA

Built 1998 ADT: 4,000

STATE ROUTE 125 SB

Over: PROSPECT AVENUE

11-SD-125-21.92-SNT, San Diego, CA

Built 1998 ADT: 5,390

STATE ROUTE 125 NB

Over: PROSPECT AVENUE

11-SD-125-21.92-SNT, San Diego, CA

Built 1998 ADT: 5,390

N125-W52 CONNECTOR

Over: SR 125, MISSION GORGE RD

11-SD-125-22.09-SNT, San Diego, CA

Built 1998 ADT: 39,000

E52-S125 CONNECTOR

Over: MISSION GORGE RD

11-SD-052-14.59-SNT, San Diego, CA

Built 1998 ADT: 43,000

INTERSTATE 5 SB

Over: CARMEL VALLEY ROAD

11-SD-005-R32.77-SD, San Diego, CA

Built 2007 ADT: 12,700

VISTA VILLAGE DR

Over: STATE ROUTE 78

11-SD-078-6.19-VSTA, San Diego, CA

Built 1998 ADT: 150,000

TWIN OAK VALLEY RD

Over: STATE ROUTE 78

11-SD-078-12.91-ESD, San Diego, CA

Built 1999 ADT: 156,000

STATE ROUTE 125 SB

Over: BLOSSOM LANE

11-SD-125-11.35-LMGR, San Diego, CA

Built 2002 ADT: 3,600

STATE ROUTE 125 NB

Over: BLOSSOM LANE

11-SD-125-11.35-LMGR, San Diego, CA

Built 2002 ADT: 3,600

STATE ROUTE 125

Over: JAMACHA ROAD

11-SD-125-10.65-LMGR, San Diego, CA

Built 2002 ADT: 21,900

STATE ROUTE 125

Over: JAMACHA ROAD

11-SD-125-10.65-LMGR, San Diego, CA

Built 2002 ADT: 21,900

TROY STREET

Over: STATE ROUTE 125

11-SD-125-12.10-LMGR, San Diego, CA

Built 2002 ADT: 133,000

S125 & 54 ON RAMP

Over: ELKELTON PLACE

11-SD-125-9.67, San Diego, CA

Built 2002 ADT: 5,100

ROUTE 125

Over: ELKELTON PLACE

11-SD-125-9.66, San Diego, CA

Built 2002 ADT: 5,100

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.