San Bernardino County, CA

1,465 public highway bridges

San Bernardino County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, San Bernardino County, California contains 1,465 public highway bridges. Roughly 29.7% are rated “Good,” 36.5% “Fair,” and 5.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

1,465
Total Bridges
29.7%
Good
36.5%
Fair
5.5%
Poor Condition

Condition Distribution

Good
29.7% (435)
Fair
36.5% (535)
Poor
5.5% (80)

All Bridges (1,465)

MISSION BLVD

Good

Over: WEST CUCAMONGA WASH

0.6 MI W OF VINEYARD, San Bernardino, CA

Built 1914 Load: 24.5 t ADT: 30,172

ROUTE 40 W BOUND.

Good

Over: WONSAN DITCH

08-SBD-040-R3.81, San Bernardino, CA

Built 1964 Load: 24.6 t ADT: 9,850

STATE ROUTE 210 WB

Good

Over: EAST TWIN CREEK CHANNEL

08-SBD-210-R24.76-SBD, San Bernardino, CA

Built 1968 Load: 24.6 t ADT: 54,500

STATE HIGHWAY 330

Good

Over: CITY CREEK

08-SBD-330-32.51, San Bernardino, CA

Built 1947 Load: 24.9 t ADT: 11,000

STATE ROUTE 142

Good

Over: CARBON CANYON

08-SBD-142-0.18, San Bernardino, CA

Built 1928 Load: 25.9 t ADT: 13,600

EB 10 OFF RAMP

Good

Over: OAK GLEN CREEK

08-SBD-010-R36.90-YUCP, San Bernardino, CA

Built 1965 Load: 25.9 t ADT: 12,377

INTERSTATE 40

Good

Over: ICE HOUSE DITCH

08-SBD-040-144.38-NED, San Bernardino, CA

Built 1967 Load: 26.2 t ADT: 7,200

CAJON BLVD

Good

Over: BRUSH CREEK

1.4 MI N SWARTOUT CYN RD, San Bernardino, CA

Built 1930 Load: 26.2 t ADT: 1,166

MOUNTAIN SPRINGS R

Good

Over: BUCKHORN WASH

0.1 MI NW SLVR LK PKWY, San Bernardino, CA

Built 1972 Load: 26.2 t ADT: 1,583

BEEKLEY ROAD

Good

Over: CALIFORNIA AQUEDUCT

0.6 MI S OF PALMDALE RD, San Bernardino, CA

Built 1971 Load: 26.2 t ADT: 44

INTERSTATE 10 WB

Good

Over: SANTA ANA RIVER

08-SBD-010-R23.83-COL, San Bernardino, CA

Built 1937 Load: 26.6 t ADT: 102,000

STATE ROUTE 66

Good

Over: LYTLE CREEK CHANNEL

08-SBD-066-21.30-SBD, San Bernardino, CA

Built 1945 Load: 26.6 t ADT: 21,500

INTERSTATE 10

Good

Over: BNSF, MISSION STORM CHNL

08-SBD-010-27.64-LMLN, San Bernardino, CA

Built 1962 Load: 26.6 t ADT: 102,500

INTERSTATE 10 EB

Good

Over: WARM CREEK

08-SBD-010-R23.60-COL, San Bernardino, CA

Built 1970 Load: 26.6 t ADT: 103,000

INTERSTATE 15 SB

Good

Over: DOCK DITCH

08-SBD-015-R121.43, San Bernardino, CA

Built 1965 Load: 26.9 t ADT: 22,000

INTERSTATE 10

Good

Over: DAY CANYON CHANNEL

08-SBD-010-10.12-ONT, San Bernardino, CA

Built 1943 Load: 26.9 t ADT: 226,300

INTERSTATE 15 NB

Good

Over: DOCK DITCH

08-SBD-015-R121.43, San Bernardino, CA

Built 1965 Load: 27.2 t ADT: 22,000

INTERSTATE 10 EB

Good

Over: CUCAMONGA WASH

08-SBD-010-6.70-ONT, San Bernardino, CA

Built 1953 Load: 27.5 t ADT: 126,000

INTERSTATE 15

Good

Over: CEMENT COMPANY ROAD

08-SBD-015-46.40-VCTV, San Bernardino, CA

Built 1958 Load: 27.9 t ADT: 59,000

INLAND EMPIRE BLVD

Good

Over: CUCAMONGA CREEK

0.4 MI W ARCHIBALD AVE, San Bernardino, CA

Built 1967 Load: 27.9 t ADT: 3,000

INTERSTATE 15 SB

Good

Over: CLARK MOUNTAIN DITCH

08-SBD-015-167.99L, San Bernardino, CA

Built 1963 Load: 28.2 t ADT: 18,500

INTERSTATE 15 NB

Good

Over: CLARK MOUNTAIN DITCH

08-SBD-015-167.99R, San Bernardino, CA

Built 1963 Load: 28.2 t ADT: 18,500

INTERSTATE 15 NB

Good

Over: PANO DITCH

08-SBD-015-R138.73, San Bernardino, CA

Built 1965 Load: 28.5 t ADT: 22,000

STATE ROUTE 38

Good

Over: SANTA ANA RIVER

08-SBD-038-30.86, San Bernardino, CA

Built 1960 Load: 29.2 t ADT: 2,500

STATE ROUTE 18

Good

Over: HILLSIDE

08-SBD-018-R11.90, San Bernardino, CA

Built 1966 Load: 29.2 t ADT: 16,800

INTERSTATE 215 NB

Good

Over: DEVIL CREEK

08-SBD-215-12.82-SBD, San Bernardino, CA

Built 1958 Load: 29.5 t ADT: 35,500

INTERSTATE 15 SB

Good

Over: MOJAVE RIVER OVERFLOW

08-SBD-015-R120.05, San Bernardino, CA

Built 1964 Load: 29.5 t ADT: 22,000

INTERSTATE 15 NB

Good

Over: MOJAVE RIVER OVERFLOW

08-SBD-015-R120.05, San Bernardino, CA

Built 1964 Load: 29.5 t ADT: 22,000

INTERSTATE 40

Good

Over: AIRPORT WASH

08-SBD-040-145.61, San Bernardino, CA

Built 1957 Load: 29.8 t ADT: 7,200

STATE ROUTE 58 WB

Good

Over: AGATE ROAD

08-SBD-058-R32.96-BSW, San Bernardino, CA

Built 1997 Load: 29.8 t ADT: 6,750

ETIWANDA AVE

Good

Over: UP RR & AMTRAK

0.2 MI S I-10, San Bernardino, CA

Built 1964 Load: 29.8 t ADT: 45,000

INTERSTATE 215 SB

Good

Over: DEVIL CREEK

08-SBD-215-12.82-SBD, San Bernardino, CA

Built 1958 Load: 30.1 t ADT: 35,500

STATE ROUTE 18

Good

Over: HILLSIDE

08-SBD-018-R12.68, San Bernardino, CA

Built 1969 Load: 30.1 t ADT: 16,800

STATE HIGHWAY 138

Good

Over: SEELEY CREEK

08-SBD-138-R29.96, San Bernardino, CA

Built 1970 Load: 30.1 t ADT: 1,500

NAT TRAILS HWY

Good

Over: TEVIOT DITCH

22.5 MI E KELBAKER RD, San Bernardino, CA

Built 1948 Load: 30.1 t ADT: 502

FORT IRWIN ROAD

Good

Over: STORM DRAINAGE

0.3 MI. N OF NASA ROAD, San Bernardino, CA

Built 1986 Load: 30.1 t ADT: 6,760

FORT IRWIN RD

Good

Over: STORM DRAINAGE

0.5 MI. NE CABLE RTE, San Bernardino, CA

Built 1986 Load: 30.1 t ADT: 6,760

INTERSTATE 15 SB

Good

Over: DRY LAKE DITCH

08-SBD-015-180.93, San Bernardino, CA

Built 1963 Load: 30.5 t ADT: 19,000

STATE ROUTE 58 EB

Good

Over: AGATE ROAD

08-SBD-058-R32.96-BSW, San Bernardino, CA

Built 1997 Load: 30.5 t ADT: 6,750

PARK MOABI RD

Good

Over: BNSF RY & AMTRAK

100' N OF RTE I-40, San Bernardino, CA

Built 1966 Load: 30.5 t ADT: 522

VALLEY OF THE FALL

Good

Over: MILL CREEK

1.3 MI E OF ROUTE 38, San Bernardino, CA

Built 1977 Load: 30.5 t ADT: 1,683

W10-S15 CONN RAMP

Good

Over: DAY CANYON CHANNEL

08-SBD-010-10.12-ONT, San Bernardino, CA

Built 1975 Load: 30.8 t ADT: 29,000

STATE ROUTE 18

Good

Over: WATERMAN CANYON RD

08-SBD-018-R13.29, San Bernardino, CA

Built 1969 Load: 30.8 t ADT: 16,800

MISSION BLVD

Good

Over: SAN ANTONIO CREEK CHAN

50' E OF L.A. COUNTY LINE, San Bernardino, CA

Built 1929 Load: 30.8 t ADT: 20,177

INTERSTATE 15 SB

Good

Over: IVANPAH DITCH

08-SBD-015-179.39, San Bernardino, CA

Built 1963 Load: 31.1 t ADT: 1

INTERSTATE 15 NB

Good

Over: DRY LAKE DITCH

08-SBD-015-180.94, San Bernardino, CA

Built 1963 Load: 31.1 t ADT: 19,000

INTERSTATE 10 EB

Good

Over: ETWNDA-SN SEVN FL CN CHN

08-SBD-010-11.64, San Bernardino, CA

Built 1966 Load: 31.1 t ADT: 95,000

INTERSTATE 40

Good

Over: ICE HOUSE DITCH

08-SBD-040-144.38-NED, San Bernardino, CA

Built 1957 Load: 31.1 t ADT: 7,200

INTERSTATE 15 NB

Good

Over: WHEATON SPRINGS WASH

08-SBD-015-174.71, San Bernardino, CA

Built 1963 Load: 31.4 t ADT: 18,500

HIGHLAND AVE

Good

Over: EAST TWIN CREEK CHANNEL

0.5 MI E WATERMAN AVE, San Bernardino, CA

Built 1961 Load: 31.4 t ADT: 23,460

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.