San Bernardino County, CA

1,465 public highway bridges

San Bernardino County Bridge Snapshot

San Bernardino County, California contains 1,465 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.7% are rated “Good,” 36.5% “Fair,” 5.5% “Poor,” and 5.5% 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.

1,465
Total Bridges
29.7%
Good
5.5%
Poor
5.5%
Structurally Deficient

Condition Distribution

Good
29.7% (435)
Fair
36.5% (535)
Poor
5.5% (80)
SD
5.5% (80)

All Bridges (1,465)

UNIVERSITY PARKWAY

Unknown

Over: BNSF RY & CAJON BLVD

0.01 MI S OF CAJON BLVD, San Bernardino, CA

Built 2008 ADT: 12,240

PEDESTRIAN ACCESS

Unknown

Over: FOOTHILL BLVD

~0.75 MILE W/O CITRUS AVE, San Bernardino, CA

Built 1931 ADT: 23,500

BNSF & METROLINK

Unknown

Over: MILIKEN AVENUE

0.21 MI S/O JERSEY BLVD, San Bernardino, CA

Built 2011 ADT: 17,000

BNSF & METROLINK

Unknown

Over: MILIKEN AVENUE

0.2 MI S/O JERSEY BLVD, San Bernardino, CA

Built 2011 ADT: 17,000

BNSF & METROLINK

Unknown

Over: HAVEN AVENUE

0.2 MI S/O JERSEY BLVD, San Bernardino, CA

Built 2010 ADT: 24,500

BNSF

Unknown

Over: RANCHERO ROAD

0.3 MI E/O 7TH AVENUE, San Bernardino, CA

Built 2010 ADT: 7,850

PALM AVENUE

Unknown

Over: BNSF RR, CAJON BLVD

0.3 MI SW OF I-215, San Bernardino, CA

Built 2015 ADT: 4,000

FOOTHILL BLVD POC

Unknown

Over: FOOTHILL BLVD

PACIFIC TRAIL AT FOOTHILL, San Bernardino, CA

Built 2013 ADT: 23,633

NORTH 8TH STREET

Unknown

Over: WEST LAUREL STREET

0.3 MILE W/O LA CADENA DR, San Bernardino, CA

Built 2017 ADT: 5,000

BNSF RR

Unknown

Over: WEST LAUREL STREET

0.25 MILE W/O LA CADENA, San Bernardino, CA

Built 2017 ADT: 5,000

MILLIKEN AVE

Unknown

Over: MISSION BLVD.

0.45 MI WEST OF I-15 N, San Bernardino, CA

Built 2016 ADT: 18,780

UNION PACIFIC RR

Unknown

Over: UNION PACIFIC RAILROAD

40 FT N/O E. AIRPORT DR., San Bernardino, CA

Built 2016 ADT: 30,000

UNION PACIFIC RR

Unknown

Over: UNION PACIFIC RAILROAD

320 FT N/O E. AIRPORT DR., San Bernardino, CA

Built 2013 ADT: 30,000

MONTE VISTA BLVD

Unknown

Over: UP RR, AMTRAK, METROLINK

0.2 MI S HOLT AVENUE, San Bernardino, CA

Built 2019 ADT: 5,020

UP RR

Unknown

Over: HIGHLAND AVE

0.5 MI E OF N. PEPPER AVE, San Bernardino, CA

Built 1967 ADT: 20,000

NAT TRAILS HWY

Fair

Over: ETTRICK DITCH

22.7 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 ADT: 230

NAT TRAILS HWY

Fair

Over: CHANDA DITCH

24.4 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 ADT: 230

NAT TRAILS HWY

Fair

Over: BRISTOL DITCH

26.7 MI E CRUCERO RD, San Bernardino, CA

Built 1930 ADT: 230

NAT TRAILS HWY

Fair

Over: LEITH DITCH

3.1 MI E OF AMBOY RD, San Bernardino, CA

Built 1930 ADT: 805

INTERSTATE 15 SB

Fair

Over: BNSF RY, AMTRAK, & UP RR

08-SBD-015-15.90, San Bernardino, CA

Built 1969 Load: 1.6 t ADT: 63,500

NAT TRAILS HWY

Fair

Over: MARBLE DITCH

5.9 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 4.9 t ADT: 502

NAT TRAILS HWY

Fair

Over: TRADA DITCH

22.0 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 6.8 t ADT: 230

NAT TRAILS HWY

Fair

Over: CHAMBLESS DITCH

5.4 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 7.1 t ADT: 502

NAT TRAILS HWY

Fair

Over: LARISSA DITCH

1.1 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 7.5 t ADT: 502

NAT TRAILS HWY

Fair

Over: NICOLA DITCH

20.6 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 7.8 t ADT: 502

NAT TRAILS HWY

Fair

Over: TERRA DITCH

3.6 MI E OF AMBOY RD, San Bernardino, CA

Built 1930 Load: 8.1 t ADT: 790

NAT TRAILS HWY

Fair

Over: BEACON DITCH

6.2 MI E OF AMBOY RD, San Bernardino, CA

Built 1930 Load: 8.7 t ADT: 805

NAT TRAILS HWY

Fair

Over: IZZY DITCH

24.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 8.7 t ADT: 502

NAT TRAILS HWY

Fair

Over: FLORWOOD DITCH

23.3 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 9.1 t ADT: 230

NAT TRAILS HWY

Fair

Over: ILIAD DITCH

23.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 9.4 t ADT: 502

NAT TRAILS HWY

Fair

Over: ELRITA DITCH

24.6 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 9.4 t ADT: 502

NAT TRAILS HWY

Fair

Over: ENCANTO DITCH

23.8 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 9.7 t ADT: 230

NAT TRAILS HWY

Fair

Over: DIAZ DITCH

24.1 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 9.7 t ADT: 230

NAT TRAILS HWY

Fair

Over: BASALT DITCH

25.2 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 9.7 t ADT: 230

NAT TRAILS HWY

Fair

Over: CRATER DITCH

26.3 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 9.7 t ADT: 230

NAT TRAILS HWY

Fair

Over: ALSA DITCH

3.7 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 9.7 t ADT: 502

NAT TRAILS HWY

Fair

Over: ADELIA DITCH

11.1 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 9.7 t ADT: 502

NAT TRAILS HWY

Fair

Over: SCOTTY DITCH

10.7 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 10.0 t ADT: 502

NAT TRAILS HWY

Fair

Over: BELLOTA DITCH

11.9 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 10.0 t ADT: 502

NAT TRAILS HWY

Fair

Over: BARODA DITCH

24.8 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 10.4 t ADT: 239

NAT TRAILS HWY

Fair

Over: TERZILLA DITCH

10.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 10.4 t ADT: 502

SIERRA AVE

Fair

Over: UP RR & AMTRAK

0.1 MI S OF I-10, San Bernardino, CA

Built 1959 Load: 11.0 t ADT: 22,000

NAT TRAILS HWY

Fair

Over: SIBERIA DITCH

13.2 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.0 t ADT: 235

NAT TRAILS HWY

Fair

Over: TROJAN DITCH

16.8 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.0 t ADT: 235

NAT TRAILS HWY

Fair

Over: SCARPA DITCH

22.2 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.3 t ADT: 230

NAT TRAILS HWY

Fair

Over: VERADO DITCH

14.4 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 230

NAT TRAILS HWY

Fair

Over: BANGOR DITCH

16.2 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 235

NAT TRAILS HWY

Fair

Over: DURANGO DITCH

17.2 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 235

NAT TRAILS HWY

Fair

Over: CINDER DITCH

17.5 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 235

NAT TRAILS HWY

Fair

Over: CASHIO DITCH

21.3 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 235

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