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)

Sort:

STATE ROUTE 18

Over: STATE ROUTE 210

08-SBD-018-T6.16-SBD, San Bernardino, CA

Built 1968 ADT: 136,000

S15-S215, N215-N15

Over: N215-S15 CONNECTOR RAMP

08-SBD-015-R13.79, San Bernardino, CA

Built 1969 ADT: 10,001

STATE HIGHWAY 138

Over: INTERSTATE 15

08-SBD-138-R15.17, San Bernardino, CA

Built 1969 ADT: 159,000

INTERSTATE 15 SB

Over: GLEN HELEN PARKWAY

08-SBD-015-14.77, San Bernardino, CA

Built 1969 ADT: 2,200

INTERSTATE 15 NB

Over: GLEN HELEN PARKWAY

08-SBD-015-14.77, San Bernardino, CA

Built 1969 ADT: 2,200

INTERSTATE 15

Over: GLEN HELEN ROAD

08-SBD-015-15.66, San Bernardino, CA

Built 1969 ADT: 2,200

INTERSTATE 15 SB

Over: N215-S15 CONNECTOR RAMP

08-SBD-015-16.32, San Bernardino, CA

Built 1969 ADT: 10,001

N15 TRUCK BYPASS

Over: I 215 NB & S15-S215

08-SBD-015-16.35, San Bernardino, CA

Built 1969 ADT: 55,000

VALENCIA AVE

Over: STATE ROUTE 210 & RAMPS

08-SBD-210-R24.57-SBD, San Bernardino, CA

Built 1971 ADT: 109,000

STATE ROUTE 210 WB

Over: DEL ROSA AVENUE

08-SBD-210-R25.72, San Bernardino, CA

Built 1971 ADT: 14,000

STATE ROUTE 210 EB

Over: DEL ROSA AVENUE

08-SBD-210-R25.72, San Bernardino, CA

Built 1971 ADT: 14,000

STATE ROUTE 210 WB

Over: STERLING AVENUE

08-SBD-210-R26.28, San Bernardino, CA

Built 1971 ADT: 16,000

STATE ROUTE 210 EB

Over: STERLING AVENUE

08-SBD-210-R26.28, San Bernardino, CA

Built 1971 ADT: 16,000

INTERSTATE 40

Over: GOFFS ROAD

08-SBD-040-R107.17, San Bernardino, CA

Built 1970 ADT: 1,500

INTERSTATE 40

Over: GOFFS ROAD

08-SBD-040-R107.17, San Bernardino, CA

Built 1970 ADT: 1,500

RIVER ROAD

Over: INTERSTATE 40

08-SBD-040-R141.02-NED, San Bernardino, CA

Built 1973 ADT: 34,000

INTERSTATE 40

Over: NEEDLES HWY

08-SBD-040-R141.62-NED, San Bernardino, CA

Built 1973 ADT: 2,916

INTERSTATE 40

Over: NEEDLES HWY

08-SBD-040-R141.62-NED, San Bernardino, CA

Built 1973 ADT: 2,916

INTERSTATE 40

Over: "J" STREET

08-SBD-040-R142.37-NED, San Bernardino, CA

Built 1973 ADT: 3,500

INTERSTATE 40

Over: "J" STREET

08-SBD-040-R142.37-NED, San Bernardino, CA

Built 1973 ADT: 3,500

"D" STREET

Over: ROUTE 40

08-SBD-040-R142.97-NED, San Bernardino, CA

Built 1973 ADT: 18,700

RANCHO AVENUE

Over: INTERSTATE 10

08-SBD-010-R21.96-COL, San Bernardino, CA

Built 1970 ADT: 206,000

INTERSTATE 40 WB

Over: ROUTE 95

08-SBD-040-R143.74-NED, San Bernardino, CA

Built 1973 ADT: 12,100

INTERSTATE 40 EB

Over: ROUTE 95

08-SBD-040-R143.74-NED, San Bernardino, CA

Built 1973 ADT: 12,100

W10-N&S215 CONNCTR

Over: "E" ST-W10 ON-RAMP

08-SBD-010-R24.57-COL, San Bernardino, CA

Built 1972 ADT: 5,282

W10-S215 CONNECTOR

Over: I 10, I 215, CON, RR, ST

08-SBD-010-R24.30-COL, San Bernardino, CA

Built 1972 ADT: 235,000

E10-N215 CONNECTOR

Over: I 10, I 215, CONNS, RIV

08-SBD-010-R24.19-COL, San Bernardino, CA

Built 1972 ADT: 18,500

S215-E10 CONNECTOR

Over: INTERSTATE 10 & 215

08-SBD-215-4.02-COL, San Bernardino, CA

Built 1972 ADT: 192,000

UP RR

Over: STATE ROUTE 210

08-SBD-210-20.19-SBD, San Bernardino, CA

Built 1965 ADT: 154,000

UP RR,BNSF,AMTRAK

Over: STATE ROUTE 138

08-SBD-138-14.16, San Bernardino, CA

Built 1967 ADT: 18,500

UP RR

Over: INTERSTATE 10

08-SBD-010-R21.46-COL, San Bernardino, CA

Built 1967 ADT: 198,000

STATE ROUTE 60

Over: GROVE AVENUE

08-SBD-060-R5.86-ONT, San Bernardino, CA

Built 1972 ADT: 17,794

STATE ROUTE 60

Over: VINEYARD AVENUE

08-SBD-060-R6.86-ONT, San Bernardino, CA

Built 1972 ADT: 17,369

STATE ROUTE 60

Over: ARCHIBALD AVENUE

08-SBD-060-R7.87-ONT, San Bernardino, CA

Built 1972 ADT: 20,000

HAVEN AVENUE

Over: STATE ROUTE 60

08-SBD-060-R8.90-ONT, San Bernardino, CA

Built 1972 ADT: 210,000

MOUNTAIN SPNGS RD

Over: INTERSTATE 40

08-SBD-040-R115.20, San Bernardino, CA

Built 1971 ADT: 15,100

WATER ROAD

Over: INTERSTATE 40

08-SBD-040-R119.98, San Bernardino, CA

Built 1971 ADT: 15,100

US HIGHWAY 95

Over: INTERSTATE 40

08-SBD-095-R57.22, San Bernardino, CA

Built 1971 ADT: 29,700

WESTBOUND I-40

Over: KELBAKER ROAD

08-SBD-040-R78.17, San Bernardino, CA

Built 1973 ADT: 150

EASTBOUND I-40

Over: KELBAKER ROAD

08-SBD-040-R78.17, San Bernardino, CA

Built 1973 ADT: 150

ESSEX ROAD

Over: INTERSTATE 40

08-SBD-040-R99.73, San Bernardino, CA

Built 1973 ADT: 15,600

INTERSTATE 15

Over: AIRPORT DRIVE

08-SBD-015-2.05-ONT, San Bernardino, CA

Built 1978 ADT: 12,300

N15-E&W10 CONNECTR

Over: AIRPORT DRIVE

08-SBD-015-2.05-ONT, San Bernardino, CA

Built 1978 ADT: 10,500

N15-W10 CONNECTOR

Over: I 10, I 15, & CONNS

08-SBD-015-2.37-ONT, San Bernardino, CA

Built 1975 ADT: 29,000

INTERSTATE 15 SB

Over: INTERSTATE 10

08-SBD-015-2.37-ONT, San Bernardino, CA

Built 1975 ADT: 250,000

INTERSTATE 15 NB

Over: INTERSTATE 10

08-SBD-015-2.37-ONT, San Bernardino, CA

Built 1975 ADT: 250,000

S15-E10 CONNECTOR

Over: I10,I15,CONNS,CHAN,OMPWY

08-SBD-015-2.41-ONT, San Bernardino, CA

Built 1975 ADT: 8,000

INTERSTATE 15

Over: ONTARIO MILLS PARKWAY

08-SBD-015-2.56-ONT, San Bernardino, CA

Built 1975 ADT: 15,900

INTERSTATE 15

Over: FOURTH STREET

08-SBD-015-3.05-RCUC, San Bernardino, CA

Built 1974 ADT: 36,000

E10-N15 CONNECTOR

Over: I 10, I 15, CONNS, CO RD

08-SBD-010-9.87-ONT, San Bernardino, CA

Built 1975 ADT: 25,000

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026