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:

UNIVERSITY AVENUE

Over: STATE ROUTE 163

11-SD-163-2.61-SD, San Diego, CA

Built 1947 ADT: 95,000

MAIN STREET

Over: INTERSTATE 5

11-SD-005-5.40-SD, San Diego, CA

Built 1973 ADT: 154,000

SDIV RR

Over: STATE ROUTE 94

11-SD-094-46.79, San Diego, CA

Built 1915 ADT: 1,950

SDIV RR

Over: STATE ROUTE 94

11-SD-094-R59.16, San Diego, CA

Built 1917 ADT: 1,950

INTERSTATE 5

Over: NCTD, BNSF, OCEANSIDE BL

11-SD-005-R52.30-OCN, San Diego, CA

Built 1953 ADT: 31,400

STATE ROUTE 163

Over: SAN DIEGO RIVER

11-SD-163-3.95-SD, San Diego, CA

Built 1946 ADT: 17,300

E&W8-N163 CONNECT

Over: CAMINO DE LA REINA,SD RI

11-SD-008-2.43-SD, San Diego, CA

Built 1970 ADT: 17,300

STATE ROUTE 78

Over: MISSION RD,NCTD,BNSF RY

11-SD-078-14.99-SMCS, San Diego, CA

Built 1962 ADT: 18,300

STATE ROUTE 75

Over: INTERSTATE 5

11-SD-075-8.98-SD, San Diego, CA

Built 1973 ADT: 154,000

FIRST AVE

Over: INTERSTATE 5

11-SD-005-R16.59-SD, San Diego, CA

Built 1962 ADT: 156,000

N163-QUINCE ST OFF

Over: STATE ROUTE 163

11-SD-163-1.62-SD, San Diego, CA

Built 1946 ADT: 118,000

RICHMOND ST-SR163

Over: STATE ROUTE 163

11-SD-163-1.80-SD, San Diego, CA

Built 1947 ADT: 107,000

PEDESTRIAN WALKWAY

Over: STATE ROUTE 163

11-SD-163-2.07-SD, San Diego, CA

Built 1947 ADT: 105,000

ROBINSON AVENUE

Over: STATE ROUTE 163

11-SD-163-2.49-SD, San Diego, CA

Built 1942 ADT: 116,000

WASHINGTON STREET

Over: STATE ROUTE 163

11-SD-163-2.75-SD, San Diego, CA

Built 1942 ADT: 130,000

WASHINGTON ST-S163

Over: STATE ROUTE 163

11-SD-163-2.79-SD, San Diego, CA

Built 1947 ADT: 97,000

STATE ROUTE 163

Over: 6TH AVE-N163 ON RAMP

11-SD-163-2.98-SD, San Diego, CA

Built 1947 ADT: 15,300

E8-N163 & S163-E8

Over: STATE ROUTE 163

11-SD-008-2.41-SD, San Diego, CA

Built 1988 ADT: 167,000

SECOND AVE

Over: ROUTE 5

11-SD-005-R16.53-SD, San Diego, CA

Built 1962 ADT: 199,000

N163-W8 CONNECTOR

Over: RTE 163, S163-W8,N163-W8

11-SD-163-3.81-SD, San Diego, CA

Built 1991 ADT: 15,900

INTERSTATE 5

Over: CANNON ROAD

11-SD-005-R47.98-CBD, San Diego, CA

Built 1971 ADT: 6,050

E STREET

Over: INTERSTATE 5

11-SD-005-8.56-CHV, San Diego, CA

Built 1973 ADT: 163,000

INTERSTATE 5 SB

Over: 24TH STREET

11-SD-005-R10.04-NATC, San Diego, CA

Built 1965 ADT: 3,790

INTERSTATE 5 NB

Over: 24TH STREET

11-SD-005-R10.04-NATC, San Diego, CA

Built 1965 ADT: 3,790

INTERSTATE 5 SB

Over: 18TH STREET

11-SD-005-R10.43-NATC, San Diego, CA

Built 1965 ADT: 13,200

INTERSTATE 5 NB

Over: 18TH STREET

11-SD-005-R10.43-NATC, San Diego, CA

Built 1951 ADT: 13,200

H STREET

Over: INTERSTATE 5

11-SD-005-7.81-CHV, San Diego, CA

Built 1973 ADT: 159,000

DAIRY MART RD

Over: INTERSTATE 5

11-SD-005-2.31-SD, San Diego, CA

Built 1973 ADT: 40,000

IRIS STREET

Over: INTERSTATE 5

11-SD-005-3.40-SD, San Diego, CA

Built 1973 ADT: 117,000

CORONADO AVE

Over: INTERSTATE 5

11-SD-005-4.04-SD, San Diego, CA

Built 1973 ADT: 117,000

MISSION AVENUE

Over: INTERSTATE 5

11-SD-005-R53.21-OCN, San Diego, CA

Built 1971 ADT: 184,000

CALIFORNIA ST

Over: INTERSTATE 5

11-SD-005-R51.85-OCN, San Diego, CA

Built 1971 ADT: 203,000

CASSIDY ST

Over: INTERSTATE 5

11-SD-005-R51.47-OCN, San Diego, CA

Built 1971 ADT: 203,000

STATE ROUTE 78

Over: INTERSTATE 5

11-SD-078-0.01-OCN, San Diego, CA

Built 1971 ADT: 201,000

JEFFERSON ST

Over: ROUTE 5

11-SD-005-R50.86-CBD, San Diego, CA

Built 1970 ADT: 203,000

LAS FLORES DR

Over: ROUTE 5

11-SD-005-R50.68-CBD, San Diego, CA

Built 1971 ADT: 203,000

INTERSTATE 5

Over: CARLSBAD VILLAGE DR

11-SD-005-R50.11-CBD, San Diego, CA

Built 1971 ADT: 17,800

INTERSTATE 5

Over: CHESTNUT AVE

11-SD-005-R49.73-CBD, San Diego, CA

Built 1971 ADT: 5,470

TAMARACK AVENUE

Over: INTERSTATE 5

11-SD-005-R49.28-CBD, San Diego, CA

Built 1971 ADT: 203,000

STATE ROUTE 94 WB

Over: INTERSTATE 15

11-SD-094-3.17-SD, San Diego, CA

Built 1959 ADT: 113,000

STATE ROUTE 94 EB

Over: INTERSTATE 15

11-SD-094-3.17-SD, San Diego, CA

Built 1951 ADT: 123,000

INTERSTATE 5

Over: DE ANZA OFF-RAMP

11-SD-005-R22.88-SD, San Diego, CA

Built 1954 ADT: 21,300

INTERSTATE 5

Over: DE ANZA OFF RAMP

11-SD-005-R22.87-SD, San Diego, CA

Built 1969 ADT: 21,300

INTERSTATE 5

Over: BALBOA AVE

11-SD-005-R23.49-SD, San Diego, CA

Built 1954 ADT: 18,300

PEDESTRIAN WALKWAY

Over: INTERSTATE 5

11-SD-005-R1.00-SD, San Diego, CA

Built 1973 ADT: 40,000

HOME AVENUE

Over: STATE ROUTE 94

11-SD-094-3.62-SD, San Diego, CA

Built 1990 ADT: 144,000

47TH STREET

Over: STATE ROUTE 94

11-SD-094-4.63-SD, San Diego, CA

Built 1973 ADT: 184,000

EUCLID AVENUE

Over: STATE ROUTE 94

11-SD-094-5.14-SD, San Diego, CA

Built 1957 ADT: 183,000

KELTON ROAD

Over: STATE ROUTE 94

11-SD-094-5.79-SD, San Diego, CA

Built 1956 ADT: 167,000

NOBEL DRIVE

Over: INTERSTATE 5

11-SD-005-R28.16-SD, San Diego, CA

Built 1966 ADT: 160,000

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

P

Compiled by PlainBridges, Independent data publisher

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.