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:

INTERSTATE 10 WB

Over: E10-VALLEY BLVD OFF-RAMP

08-SBD-010-11.50, San Bernardino, CA

Built 1947 ADT: 6,500

INTERSTATE 10 EB

Over: E10-VALLEY BLVD OFF-RAMP

08-SBD-010-11.50, San Bernardino, CA

Built 1966 ADT: 6,500

STATE ROUTE 18

Over: STATE ROUTE 330

08-SBD-018-31.64, San Bernardino, CA

Built 1951 ADT: 14,500

CEDAR AVENUE

Over: INTERSTATE 10

08-SBD-010-R18.49-SBD, San Bernardino, CA

Built 1967 ADT: 177,000

STATE ROUTE 210 WB

Over: STATE STREET

08-SBD-210-20.69-SBD, San Bernardino, CA

Built 2007 ADT: 6,000

STATE ROUTE 210 EB

Over: STATE STREET

08-SBD-210-20.69-SBD, San Bernardino, CA

Built 2007 ADT: 6,000

STATE ST-E210 ONRP

Over: STATE STREET

08-SBD-210-20.69-SBD, San Bernardino, CA

Built 2007 ADT: 6,000

HALLORAN SPRNGS RD

Over: INTERSTATE 15

08-SBD-015-149.60, San Bernardino, CA

Built 1961 ADT: 37,000

HALLORAN SUMMIT RD

Over: INTERSTATE 15

08-SBD-015-155.57, San Bernardino, CA

Built 1961 ADT: 72,000

UP RR,AMTRAK,METRO

Over: ST RTE 83 (EUCLID AVE)

08-SBD-083-9.24-ONT, San Bernardino, CA

Built 1984 ADT: 29,000

UP RR,AMTRAK,METRO

Over: ST RTE 83 (EUCLID AVE)

08-SBD-083-9.33-ONT, San Bernardino, CA

Built 1984 ADT: 29,000

CIMA ROAD

Over: INTERSTATE 15

08-SBD-015-162.73, San Bernardino, CA

Built 1961 ADT: 37,000

AFTON ROAD

Over: INTERSTATE 15

08-SBD-015-R111.59, San Bernardino, CA

Built 1964 ADT: 44,000

BASIN ROAD

Over: INTERSTATE 15

08-SBD-015-R120.43, San Bernardino, CA

Built 1964 ADT: 75,000

RASOR ROAD

Over: INTERSTATE 15

08-SBD-015-R124.24, San Bernardino, CA

Built 1965 ADT: 47,000

ZZYZX ROAD

Over: INTERSTATE 15

08-SBD-015-R130.18, San Bernardino, CA

Built 1965 ADT: 80,000

INTERSTATE 10 WB

Over: W10-HOLT BLVD OFF-RAMP

08-SBD-010-6.80-ONT, San Bernardino, CA

Built 1966 ADT: 12,700

INTERSTATE 10 EB

Over: W10-HOLT BLVD OFF-RAMP

08-SBD-010-6.80-ONT, San Bernardino, CA

Built 1952 ADT: 12,700

INTERSTATE 10

Over: GROVE AVENUE

08-SBD-010-4.88-ONT, San Bernardino, CA

Built 1954 ADT: 25,000

STATE ROUTE 83

Over: INTERSTATE 10

08-SBD-083-11.10-UPL, San Bernardino, CA

Built 1970 ADT: 243,000

INTERSTATE 10

Over: BENSON AVENUE

08-SBD-010-1.75-MCL, San Bernardino, CA

Built 1953 ADT: 15,000

INTERSTATE 10

Over: MILLS AVENUE

08-SBD-010-0.01-MCL, San Bernardino, CA

Built 1953 ADT: 9,000

MOUNT VERNON AVE

Over: INTERSTATE 10

08-SBD-010-R23.25-COL, San Bernardino, CA

Built 1967 ADT: 20,100

INTERSTATE 10

Over: LA CADENA DRIVE

08-SBD-010-R22.62-COL, San Bernardino, CA

Built 1956 ADT: 20,000

I-10 EB OFF RAMP

Over: LA CADENA DRIVE

08-SBD-010-R22.62-COL, San Bernardino, CA

Built 1970 ADT: 20,000

ETIWANDA AVENUE

Over: INTERSTATE 10

08-SBD-010-11.13-ONT, San Bernardino, CA

Built 1955 ADT: 19,000

STATE ROUTE 18

Over: INTERSTATE 15

08-SBD-018-R96.60-VCTV, San Bernardino, CA

Built 1975 ADT: 94,000

S215-E&W10 CONNCTR

Over: FAIRWAY, SANTA ANA RIVER

08-SBD-215-4.21-COL, San Bernardino, CA

Built 1964 ADT: 1,400

INTERSTATE 215 SB

Over: FAIRWAY, SANTA ANA RIVER

08-SBD-215-4.21-COL, San Bernardino, CA

Built 1958 ADT: 1,450

INTERSTATE 215 NB

Over: FAIRWAY, SANTA ANA RIVER

08-SBD-215-4.21-COL, San Bernardino, CA

Built 1972 ADT: 1,450

ORANGE SHOW ROAD

Over: INTERSTATE 215 & RAMPS

08-SBD-215-5.03-SBD, San Bernardino, CA

Built 1972 ADT: 155,000

INTERSTATE 215 SB

Over: INTERSTATE 10

08-SBD-215-4.03-COL, San Bernardino, CA

Built 1972 ADT: 198,000

INTERSTATE 215 NB

Over: INTERSTATE 10

08-SBD-215-4.03-COL, San Bernardino, CA

Built 1972 ADT: 198,000

N215-E10 CONNECTOR

Over: UP RR, AMTRAK, STEEL RD

08-SBD-215-3.72-COL, San Bernardino, CA

Built 1959 ADT: 3,000

INTERSTATE 215 SB

Over: UP RR, AMTRAK, STEEL RD

08-SBD-215-3.72-COL, San Bernardino, CA

Built 1959 ADT: 3,000

INTERSTATE 215 NB

Over: UP RR, AMTRAK, STEEL RD

08-SBD-215-3.72-COL, San Bernardino, CA

Built 1973 ADT: 3,000

INTERSTATE 15

Over: BNSF RY,UP RR,AMTRAK,ETC

08-SBD-015-43.47-VCTV, San Bernardino, CA

Built 1958 ADT: 31,000

N15 CONN FROM SR18

Over: BNSF RY,UP RR,AMTRAK,ETC

08-SBD-015-43.48-VCTV, San Bernardino, CA

Built 2020 ADT: 31,000

INTERSTATE 215

Over: RIALTO AVENUE

08-SBD-215-6.66-SBD, San Bernardino, CA

Built 1957 ADT: 23,000

YUCAIPA BLVD

Over: INTERSTATE 10

08-SBD-010-35.50-YUCP, San Bernardino, CA

Built 1989 ADT: 134,000

INTERSTATE 215

Over: UNIVERSITY PARKWAY

08-SBD-215-11.63-SBD, San Bernardino, CA

Built 1958 ADT: 11,000

IOWA AVENUE

Over: INTERSTATE 215 & RAMPS

08-SBD-215-0.40-COL, San Bernardino, CA

Built 1959 ADT: 1,001

WASHINGTON AVENUE

Over: INTERSTATE 215 & RAMPS

08-SBD-215-2.69-COL, San Bernardino, CA

Built 1959 ADT: 157,000

INTERSTATE 215 SB

Over: PALM AVENUE

08-SBD-215-14.09-SBD, San Bernardino, CA

Built 1958 ADT: 6,000

INTERSTATE 215 NB

Over: PALM AVENUE

08-SBD-215-14.09-SBD, San Bernardino, CA

Built 1958 ADT: 6,000

LITTLE LEAGUE DR

Over: INTERSTATE 215

08-SBD-215-14.93-SBD, San Bernardino, CA

Built 1958 ADT: 97,500

STODDARD WELLS RD

Over: INTERSTATE 15

08-SBD-015-44.40-VCTV, San Bernardino, CA

Built 1958 ADT: 59,000

MILLIKEN AVENUE

Over: INTERSTATE 10

08-SBD-010-9.17-ONT, San Bernardino, CA

Built 1971 ADT: 226,000

YATES WELL ROAD

Over: INTERSTATE 15

08-SBD-015-181.40, San Bernardino, CA

Built 1963 ADT: 38,000

EAST MAIN STREET

Over: INTERSTATE 15

08-SBD-015-74.95-BSW, San Bernardino, CA

Built 1961 ADT: 50,000

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 5, 2026