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 10 WB

Fair

Over: BNSF RY & METROLINK

08-SBD-010-R22.38-COL, San Bernardino, CA

Built 1956 Load: 36.9 t ADT: 102,000

INTERSTATE 15 NB

Fair

Over: CLEGHORN CREEK

08-SBD-015-R18.48, San Bernardino, CA

Built 1969 Load: 36.9 t ADT: 90,500

STATE ROUTE 210 EB

Fair

Over: GOLDEN AVENUE

08-SBD-210-R25.21-SBD, San Bernardino, CA

Built 1971 Load: 36.9 t ADT: 69,000

PHILADELPHIA AVE

Fair

Over: SAN ANTONIO CHANNEL

0.15 MI W OF EAST END ST, San Bernardino, CA

Built 1958 Load: 36.9 t ADT: 12,170

INTERSTATE 15 NB

Fair

Over: DALE DITCH

08-SBD-015-150.32, San Bernardino, CA

Built 1961 Load: 37.3 t ADT: 18,500

INTERSTATE 15 SB

Fair

Over: YERMO DITCH

08-SBD-015-R86.05, San Bernardino, CA

Built 1963 Load: 37.3 t ADT: 28,500

INTERSTATE 15 NB

Fair

Over: YERMO DITCH

08-SBD-015-R86.05, San Bernardino, CA

Built 1963 Load: 37.3 t ADT: 28,500

STATE ROUTE 18

Fair

Over: HILLSIDE

08-SBD-018-R12.15, San Bernardino, CA

Built 1966 Load: 37.3 t ADT: 16,800

NAT TRAILS HWY

Fair

Over: TALOFA DITCH

9.6MI E/O KELBAKER RD, San Bernardino, CA

Built 1961 Load: 37.3 t ADT: 502

SYCAMORE DRIVE

Fair

Over: LYTLE CREEK

0.1 MI W LYTLE CREEK RD, San Bernardino, CA

Built 1970 Load: 37.3 t ADT: 1,172

FOURTH ST

Fair

Over: TWIN WARM CREEK

0.25 MI E WATERMAN AVE, San Bernardino, CA

Built 1961 Load: 37.3 t ADT: 2,325

INTERSTATE 15 NB

Fair

Over: BERRY DITCH

08-SBD-015-139.22, San Bernardino, CA

Built 1961 Load: 37.6 t ADT: 22,000

INTERSTATE 40

Fair

Over: SAGE WASH

08-SBD-040-150.25, San Bernardino, CA

Built 1957 Load: 37.6 t ADT: 7,450

INTERSTATE 40 EB

Fair

Over: ASH HILL WASH

08-SBD-040-R54.77R, San Bernardino, CA

Built 1970 Load: 37.6 t ADT: 8,150

INTERSTATE 40

Fair

Over: BADGER WASH

08-SBD-040-R75.50, San Bernardino, CA

Built 1972 Load: 37.6 t ADT: 16,500

INTERSTATE 15 SB

Fair

Over: ABANDONED RR (BIKEPATH)

08-SBD-015-7.08-FNA, San Bernardino, CA

Built 1976 Load: 37.6 t ADT: 80,000

5TH ST

Fair

Over: WARM CREEK CHANNEL

0.3 MI E WATERMAN AVE, San Bernardino, CA

Built 1960 Load: 37.6 t ADT: 6,491

INTERSTATE 40

Fair

Over: "L" STREET

08-SBD-040-R142.20-NED, San Bernardino, CA

Built 1973 Load: 37.9 t ADT: 7,350

BASE LINE RD WB

Fair

Over: UP RR

2.55 MI W I-215, San Bernardino, CA

Built 1967 Load: 38.2 t ADT: 9,767

STATE ROUTE 66

Fair

Over: UP RR

08-SBD-066-20.83-SBD, San Bernardino, CA

Built 1967 Load: 38.6 t ADT: 19,700

INTERSTATE 40 WB

Fair

Over: OLD DAD WASH

08-SBD-040-R74.51, San Bernardino, CA

Built 1972 Load: 38.6 t ADT: 16,500

INTERSTATE 15 SB

Fair

Over: CLEGHORN CANYON RD

08-SBD-015-R20.02, San Bernardino, CA

Built 1969 Load: 38.9 t ADT: 92,000

INTERSTATE 40 EB

Fair

Over: OLD DAD WASH

08-SBD-040-R74.51, San Bernardino, CA

Built 1972 Load: 38.9 t ADT: 16,500

STATE ROUTE 18

Fair

Over: LOWER BONNIE CANYON

08-SBD-018-R14.78, San Bernardino, CA

Built 1969 Load: 38.9 t ADT: 16,800

STATE ROUTE 58 WB

Fair

Over: BNSF RY, UP RR, & AMTRAK

08-SBD-058-R33.41-BSW, San Bernardino, CA

Built 1997 Load: 38.9 t ADT: 6,750

VICTORIA ST

Fair

Over: EAST ETIWANDA CREEK CHAN

0.1 MI E OF I-15, San Bernardino, CA

Built 1976 Load: 38.9 t ADT: 3,592

OFFRAMP TO AIRPORT

Fair

Over: BLOSSOM WASH

08-SBD-040-R12.00, San Bernardino, CA

Built 1968 Load: 39.2 t ADT: 450

RAMONA AVE

Fair

Over: SAN ANTONIO CREEK CHAN

0.1 MI S SAN BERNARDNO ST, San Bernardino, CA

Built 1958 Load: 39.2 t ADT: 2,900

INTERSTATE 15 NB

Fair

Over: FLAT DITCH

08-SBD-015-R101.48, San Bernardino, CA

Built 1963 Load: 39.5 t ADT: 28,000

INTERSTATE 40

Fair

Over: FOX WASH OVERFLOW

08-SBD-040-R140.00-NED, San Bernardino, CA

Built 1967 Load: 39.5 t ADT: 16,700

INTERSTATE 40 WB

Fair

Over: LAVA DITCH

08-SBD-040-R31.42, San Bernardino, CA

Built 1967 Load: 39.5 t ADT: 9,800

INTERSTATE 40 EB

Fair

Over: LAVA DITCH

08-SBD-040-R31.42, San Bernardino, CA

Built 1967 Load: 39.5 t ADT: 9,800

INTERSTATE 40 EB

Fair

Over: BNSF RY & AMTRAK

08-SBD-040-R135.88, San Bernardino, CA

Built 1971 Load: 39.5 t ADT: 8,750

W10-S15 CONNECTOR

Fair

Over: UPRR & AMTRAK

08-SBD-010-9.92-ONT, San Bernardino, CA

Built 1978 Load: 39.9 t ADT: 29,000

K STREET

Fair

Over: LYTLE CREEK CHANNEL

0.15 MI N MILL ST, San Bernardino, CA

Built 1973 Load: 39.9 t ADT: 4,030

INTERSTATE 15 SB

Fair

Over: MWD PIPELINE

08-SBD-015-3.94-RCUC, San Bernardino, CA

Built 1975 Load: 40.5 t ADT: 98,000

E. ARROW HWY

Fair

Over: SAN ANTONIO CREEK CHAN

0.7 MI W CENTRAL AVE, San Bernardino, CA

Built 1958 Load: 40.5 t ADT: 25,500

INTERSTATE 40

Fair

Over: CRESTVIEW WASH

08-SBD-040-R132.18, San Bernardino, CA

Built 1971 Load: 40.8 t ADT: 13,600

STATE ROUTE 58 EB

Fair

Over: BNSF RY, UP RR, & AMTRAK

08-SBD-058-R33.41-BSW, San Bernardino, CA

Built 1997 Load: 40.8 t ADT: 6,750

E210-N15 CONNECTOR

Fair

Over: EAST ETIWANDA CREEK

08-SBD-210-11.02-RCUC, San Bernardino, CA

Built 1976 Load: 40.8 t ADT: 3,001

INTERSTATE 15 SB

Fair

Over: VICTORIA STREET

08-SBD-015-7.44-RCUC, San Bernardino, CA

Built 1976 Load: 41.1 t ADT: 80,000

OLD HIGHWAY 58

Fair

Over: CROW DITCH

0.2 MI W/O SHADY LN, San Bernardino, CA

Built 1992 Load: 41.1 t ADT: 4,000

INTERSTATE 40

Fair

Over: GAS LINE WASH

08-SBD-040-R15.41, San Bernardino, CA

Built 1968 Load: 41.5 t ADT: 19,500

INTERSTATE 40

Fair

Over: GAS LINE WASH

08-SBD-040-R15.41, San Bernardino, CA

Built 1968 Load: 41.5 t ADT: 19,500

INTERSTATE 40

Fair

Over: TWIN HILLS WASH

08-SBD-040-R15.92, San Bernardino, CA

Built 1968 Load: 41.5 t ADT: 19,500

INTERSTATE 40

Fair

Over: TWIN HILLS WASH

08-SBD-040-R15.92, San Bernardino, CA

Built 1968 Load: 41.5 t ADT: 19,500

SAN TIMOTEO CYN RD

Fair

Over: SAN TIMOTEO CREEK

0.1 MI S BROOKSIDE RD, San Bernardino, CA

Built 1970 Load: 41.8 t ADT: 12,000

INTERSTATE 15 NB

Fair

Over: METROLINK & BNSF RY

08-SBD-015-4.10-RCUC, San Bernardino, CA

Built 1975 Load: 42.1 t ADT: 98,000

INTERSTATE 15 SB

Fair

Over: LYTLE CREEK

08-SBD-015-13.08, San Bernardino, CA

Built 1975 Load: 42.1 t ADT: 69,000

INTERSTATE 15 SB

Fair

Over: METROLINK & BNSF RY

08-SBD-015-4.10-RCUC, San Bernardino, CA

Built 1975 Load: 42.4 t ADT: 98,000

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial