San Diego County, CA

1,707 public highway bridges

San Diego County Bridge Snapshot

San Diego County, California contains 1,707 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.5% are rated “Good,” 20% “Fair,” 1.6% “Poor,” and 1.6% 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.

1,707

Total Bridges

29.5%

Good

1.6%

Poor

1.6%

Structurally Deficient

Condition Distribution

Good

29.5% (504)

Fair

20% (341)

Poor

1.6% (27)

SD

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.

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