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)

INTERSTATE 15 SB

Good

Over: BIRD DITCH

08-SBD-015-R115.36, San Bernardino, CA

Built 1964 Load: 45.4 t ADT: 22,000

INTERSTATE 15 NB

Good

Over: BIRD DITCH

08-SBD-015-R115.36, San Bernardino, CA

Built 1964 Load: 45.4 t ADT: 22,000

STATE ROUTE 18

Good

Over: HILLSIDE

08-SBD-018-R17.54, San Bernardino, CA

Built 1965 Load: 45.4 t ADT: 16,800

CEDAR AVE

Good

Over: UP RR & AMTRAK

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

Built 1966 Load: 45.4 t ADT: 27,730

STATE ROUTE 210 EB

Good

Over: 27TH STREET

08-SBD-210-21.49-SBD, San Bernardino, CA

Built 1989 Load: 46.0 t ADT: 59,000

HOLT BLVD (W. BND)

Good

Over: CUCAMONGA CREEK CHANNEL

0.6 MI E'LY VINEYARD AVE, San Bernardino, CA

Built 1979 Load: 46.0 t ADT: 19,171

STATE ROUTE 18

Good

Over: HILLSIDE

08-SBD-018-R16.64, San Bernardino, CA

Built 1970 Load: 47.3 t ADT: 16,000

CHURCH STREET

Good

Over: DEER CREEK CHANNEL

0.1 MI E OF HAVEN AVE, San Bernardino, CA

Built 1985 Load: 47.6 t ADT: 7,168

INTERSTATE 15

Good

Over: UP RR & AMTRAK

08-SBD-015-2.15-ONT, San Bernardino, CA

Built 1978 Load: 48.3 t ADT: 198,000

VIVIENDA AVE

Good

Over: UP RR

0.35 MI W OF RTE 215, San Bernardino, CA

Built 1986 Load: 48.3 t ADT: 400

FOOTHILL BLVD

Good

Over: CUCAMONGA WASH

0.3 MI E/O BAKER AVE, San Bernardino, CA

Built 1979 Load: 48.3 t ADT: 30,700

E10/N&S 215 RAMPS

Good

Over: SANTA ANA RIVER

08-SBD-010-R23.80-COL, San Bernardino, CA

Built 1972 Load: 48.9 t ADT: 28,700

GUASTI RD

Good

Over: CUCAMONGA CREEK CHANNEL

0.2 MI E HOLT/CON.CTR.DR., San Bernardino, CA

Built 1979 Load: 48.9 t ADT: 2,707

BLUE WATER RD

Good

Over: FREMONT WASH

0.1 MI S LAKEVIEW DR, San Bernardino, CA

Built 1972 Load: 49.2 t ADT: 2,070

ROUTE 40 W BOUND

Good

Over: DEAN WASH

08-SBD-040-R1.60, San Bernardino, CA

Built 1964 Load: 49.9 t ADT: 19,500

STATE ROUTE 38

Good

Over: MOUNTAIN HOME CREEK

08-SBD-038-R12.28, San Bernardino, CA

Built 1978 Load: 50.9 t ADT: 5,000

HOLT BLVD (E. BND)

Good

Over: CUCAMONGA CREEK CHANNEL

0.6 MI E'LY VINEYARD AVE, San Bernardino, CA

Built 1979 Load: 51.2 t ADT: 19,171

STATE ROUTE 210 WB

Good

Over: PEPPER AVENUE

08-SBD-210-19.67-RIA, San Bernardino, CA

Built 2007 Load: 55.1 t ADT: 77,000

INTERSTATE 15

Good

Over: BNSF RY & AMTRAK

08-SBD-015-R22.04, San Bernardino, CA

Built 1969 Load: 55.4 t ADT: 158,000

STATE ROUTE 210 EB

Good

Over: PEPPER AVENUE

08-SBD-210-19.67-RIA, San Bernardino, CA

Built 2007 Load: 55.4 t ADT: 77,000

GILBERT ST

Good

Over: EAST TWIN CREEK CHANNEL

0.75 MI E WATERMAN AVE, San Bernardino, CA

Built 1961 Load: 57.7 t ADT: 11,361

ARCHIBALD AVE

Good

Over: DEER CREEK CHANNEL

0.5 MI N ROUTE I-10, San Bernardino, CA

Built 1981 Load: 58.0 t ADT: 26,159

CAJON BLVD

Good

Over: CLEGHORN CREEK

0.7 MI S/O CLEGHORN, San Bernardino, CA

Built 1952 Load: 59.0 t ADT: 1,166

TWENTY-FOURTH ST

Good

Over: DEER CREEK CHANNEL

0.4 MI W HAVEN AVE, San Bernardino, CA

Built 1982 Load: 60.3 t ADT: 800

TWENTY-FIFTH ST

Good

Over: DEER CREEK CHANNEL

0.4 MI W HAVEN AVE, San Bernardino, CA

Built 1982 Load: 60.3 t ADT: 800

TWENTY-SIXTH ST

Good

Over: DEER CREEK CHANNEL

0.4 MI W HAVEN AVE, San Bernardino, CA

Built 1982 Load: 60.3 t ADT: 2,200

HUMBOLT AVENUE

Good

Over: DEER CREEK CHANNEL

0.4 MI W HAVEN AVE, San Bernardino, CA

Built 1982 Load: 63.2 t ADT: 2,200

SIXTH STREET

Good

Over: DEER CREEK CHANNEL

0.6 MI E ARCHIBALD AVE, San Bernardino, CA

Built 1981 Load: 63.2 t ADT: 13,440

EIGHTH STREET

Good

Over: DEER CREEK CHANNEL

0.4 MI W HAVEN AVE, San Bernardino, CA

Built 1982 Load: 63.2 t ADT: 3,489

ARROW ROUTE

Good

Over: CUCAMONGA CREEK CHANNEL

0.1 MI W VINEYARD AVE, San Bernardino, CA

Built 1980 Load: 70.0 t ADT: 15,200

INTERSTATE 15

Good

Over: UP RR

08-SBD-015-R22.75, San Bernardino, CA

Built 1969 Load: 74.5 t ADT: 158,000

CAJON BLVD

Good

Over: DEBRIS CONE CREEK

1.0 MI N SWARTOUT CYN RD, San Bernardino, CA

Built 1952 Load: 80.7 t ADT: 1,166

HAVEN AVENUE

Good

Over: DEER CREEK CHANNEL

0.5 MI N OF RTE 66, San Bernardino, CA

Built 1982 Load: 99.8 t ADT: 28,880

LA MESA/AMARGOSA R

Good

Over: ORO GRANDE WASH

LA MESA & AMARGOSA RDS, San Bernardino, CA

Built 2013 Load: 99.9 t ADT: 13,600

HAVASU LAKE ROAD

Good

Over: DRY RUN

HAVASU LAKE, San Bernardino, CA

Built 2020 Load: 99.9 t ADT: 200

NAT TRAILS HWY

Poor

Over: COTA DITCH

16.7 MI E KELBAKER RD, San Bernardino, CA

Built 1930 ADT: 502

NAT TRAILS HWY

Poor

Over: DALMATIA DITCH

17.8 MI E KELBAKER RD, San Bernardino, CA

Built 1930 ADT: 502

NAT TRAILS HWY

Poor

Over: CALIFA DITCH

21.2 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 8.1 t ADT: 502

NAT TRAILS HWY

Poor

Over: ADENA DITCH

21.9 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 10.0 t ADT: 502

NAT TRAILS HWY

Poor

Over: BANDERA WASH

26.1 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 10.0 t ADT: 502

NAT TRAILS HWY

Poor

Over: CLIPPER DITCH

23.6 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 10.4 t ADT: 502

NAT TRAILS HWY

Poor

Over: ELLITA DITCH

15.3 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 11.0 t ADT: 502

NAT TRAILS HWY

Poor

Over: TENINO DITCH

16.0 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 11.0 t ADT: 502

NAT TRAILS HWY

Poor

Over: BUD DITCH

18.8 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 11.0 t ADT: 502

BASELINE RD

Poor

Over: EAST TWIN CREEK CHANNEL

0.75 MI E WATERMAN AVE, San Bernardino, CA

Built 1961 Load: 12.3 t ADT: 28,140

NAT TRAILS HWY

Poor

Over: ATAJO DITCH

14.3 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 502

NAT TRAILS HWY

Poor

Over: AXTON DITCH

26.0 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 502

NAT TRAILS HWY

Poor

Over: ECKSY DITCH

1.30 MI E OF ESSEX RD, San Bernardino, CA

Built 1930 Load: 12.3 t ADT: 502

NAT TRAILS HWY

Poor

Over: ALBRO DITCH

13.8 MI E KELBAKER RD, San Bernardino, CA

Built 1930 Load: 12.6 t ADT: 502

NAT TRAILS HWY

Poor

Over: AVILLA DITCH

0.50 MI E OF ESSEX RD, San Bernardino, CA

Built 1930 Load: 13.6 t ADT: 502

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