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)

NAT TRAILS HWY

Fair

Over: EDLOFT DITCH

12.7 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 502

NAT TRAILS HWY

Fair

Over: AVIS DITCH

0.1 MI E OF ESSEX RD, San Bernardino, CA

Built 1930 Load: 11.7 t ADT: 502

NAT TRAILS HWY

Fair

Over: CERULIA DITCH

2.2 MI E OF AMBOY RD, San Bernardino, CA

Built 1930 Load: 12.0 t ADT: 805

NAT TRAILS HWY

Fair

Over: ZAGA DITCH

3.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.0 t ADT: 502

HINKLEY RD

Fair

Over: MOJAVE RIVER

0.75 MI N/O NAT'L TRAILS, San Bernardino, CA

Built 1950 Load: 12.0 t ADT: 405

NAT TRAILS HWY

Fair

Over: ROCAS DITCH

13.9 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 235

NAT TRAILS HWY

Fair

Over: EL ROVIA DITCH

21.7 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 235

NAT TRAILS HWY

Fair

Over: CERRO DITCH

1.3 MI E OF AMBOY RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 790

NAT TRAILS HWY

Fair

Over: AVA DITCH

19.6 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 502

DAGGETT-YERMO RD

Fair

Over: MOJAVE RIVER

0.5 MI N OF NATL TRA HWY, San Bernardino, CA

Built 1941 Load: 12.6 t ADT: 2,919

NAT TRAILS HWY

Fair

Over: PASTEL DITCH

6.8 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.6 t ADT: 502

NAT TRAILS HWY

Fair

Over: RODILLA DITCH

13.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.6 t ADT: 502

NAT TRAILS HWY

Fair

Over: TARECO DITCH

19.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.6 t ADT: 502

CITRUS AVE

Fair

Over: UP RR & AMTRAK

200' S OF I-10, San Bernardino, CA

Built 1960 Load: 13.0 t ADT: 22,972

NAT TRAILS HWY

Fair

Over: BAGDAD DITCH

20.9 MI E CRUCERO RD, San Bernardino, CA

Built 1930 Load: 13.0 t ADT: 235

NAT TRAILS HWY

Fair

Over: URLAN DITCH

7.6 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 13.0 t ADT: 502

NAT TRAILS HWY

Fair

Over: AVERILL DITCH

1.0 MI E OF ESSEX RD, San Bernardino, CA

Built 1930 Load: 13.0 t ADT: 502

NAT TRAILS HWY

Fair

Over: ZANZA DITCH

14.8 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 13.3 t ADT: 235

NAT TRAILS HWY

Fair

Over: NOLA DITCH

15.5 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 13.3 t ADT: 235

NAT TRAILS HWY

Fair

Over: AVON WASH

9.5 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 14.3 t ADT: 235

MINERAL ROAD

Fair

Over: MOJAVE RIVER

0.1 MI NE/O D STREET, San Bernardino, CA

Built 1928 Load: 14.6 t ADT: 20

NAT TRAILS HWY

Fair

Over: ARLETTA DITCH

9.9 MI E KELBAKER RD, San Bernardino, CA

Built 1943 Load: 14.6 t ADT: 502

INTERSTATE 15 NB

Fair

Over: BNSF RY, AMTRAK, & UP RR

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

Built 1969 Load: 15.6 t ADT: 63,500

NAT TRAILS HWY

Fair

Over: WORKMAN WASH

0.5 MI N/O RTE 40, San Bernardino, CA

Built 1890 Load: 16.2 t ADT: 146

E BROADWAY

Fair

Over: NEEDLES FLOOD CONTROL CH

0.45 MI N/O RTE 40, San Bernardino, CA

Built 1941 Load: 16.2 t ADT: 5,141

CARNELIAN STREET

Fair

Over: REDHILL PARK RESV CHAN

0.4 MI N OF RTE 66, San Bernardino, CA

Built 1936 Load: 16.2 t ADT: 20,613

PARKER DAM RD

Fair

Over: COPPER BASIN WASH

5.7 MI S/O PARKER DAM, San Bernardino, CA

Built 1940 Load: 16.2 t ADT: 1,500

FOOTHILL BLVD

Fair

Over: CUCAMONGA OVERFLOW

JUST E/O HOSPITAL PKWY, San Bernardino, CA

Built 1914 Load: 16.2 t ADT: 31,500

RAMONA AVE

Fair

Over: SAN ANTONIO CREEK CHAN

0.3 MI N CHINO HILLS PKWY, San Bernardino, CA

Built 1958 Load: 16.8 t ADT: 19,370

FOOTHILL BLVD

Fair

Over: SAN ANTONIO OVERFLOW

0.15 MI E MONTE VISTA AVE, San Bernardino, CA

Built 1914 Load: 16.8 t ADT: 21,500

KENDALL DR

Fair

Over: CABLE CREEK

0.5 MI S PALM AVE, San Bernardino, CA

Built 1937 Load: 17.2 t ADT: 21,102

BEAR VALLEY RD

Fair

Over: MOJAVE RIVER

5 MI E RTE I-15, San Bernardino, CA

Built 1963 Load: 17.5 t ADT: 46,361

NAT TRAILS HWY

Fair

Over: FONDA DITCH

11 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 17.5 t ADT: 230

RADFORD CAMP RD

Fair

Over: SANTA ANA RIVER

0.1 MI N SEVEN OAKS RD, San Bernardino, CA

Built 1950 Load: 17.8 t ADT: 26

CHINO HILLS PKWY

Fair

Over: SAN ANTONIO CHANNEL

0.5 MI E OF RTE 71, San Bernardino, CA

Built 1965 Load: 18.1 t ADT: 26,000

NAT TRAILS HWY

Fair

Over: SELVA DITCH

18.4 MI E CRUCERO RD, San Bernardino, CA

Built 1933 Load: 18.1 t ADT: 235

N 1ST AVENUE

Fair

Over: MOJAVE RIVER OVERFLOW

0.1 MI N OF IRWIN RD., San Bernardino, CA

Built 1939 Load: 18.5 t ADT: 3,400

NAT TRAILS HWY

Fair

Over: WEST LUDLOW WASH

0.3 MI W OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 18.8 t ADT: 1

NATL TRAILS HWY

Fair

Over: VERDE WASH

0.8 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 18.8 t ADT: 108

BARTON RD

Fair

Over: UP RR

0.25 MI WEST OF I-215, San Bernardino, CA

Built 1929 Load: 18.8 t ADT: 10,420

GREEN VALLEY LK RD

Fair

Over: NORTH FORK DEEP CREEK

10' WEST OF ROUTE 18, San Bernardino, CA

Built 1940 Load: 19.4 t ADT: 849

NATL TRAILS HWY

Fair

Over: ROCK WASH

0.5 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 19.4 t ADT: 108

RANCHERO ST

Fair

Over: CALIFORNIA AQUEDUCT

0.95 MI E MAPLE AVE, San Bernardino, CA

Built 1971 Load: 19.4 t ADT: 7,759

MAIN STREET

Fair

Over: CALIFORNIA AQUEDUCT

0.7 MI E OF RTE 15, San Bernardino, CA

Built 1970 Load: 19.8 t ADT: 27,667

PARK ENTRANCE ROAD

Fair

Over: SAWPIT CREEK

1.1 MI E OF PARK GATE, San Bernardino, CA

Built 1973 Load: 19.8 t ADT: 500

ROUTE 40 E BOUND

Fair

Over: IWO JIMA STREET

08-SBD-040-R3.43, San Bernardino, CA

Built 1964 Load: 20.1 t ADT: 19,500

ORANGE ST

Fair

Over: ELDER GULCH

0.1 MI S OF FIFTH ST, San Bernardino, CA

Built 1936 Load: 20.1 t ADT: 7,012

NAT TRAILS HWY

Fair

Over: DAGGET DITCH

0.50 MI E DAGGET YERMO RD, San Bernardino, CA

Built 1929 Load: 20.1 t ADT: 1,052

NORTH ACCESS BR.RD

Fair

Over: EAST ETIWANDA CREEK

0.1 MI NORTH OF I30, San Bernardino, CA

Built 1999 Load: 20.1 t ADT: 2

INTERSTATE 215

Fair

Over: BNSF RY & METROLINK

08-SBD-215-6.59-SBD, San Bernardino, CA

Built 1957 Load: 20.4 t ADT: 192,000

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