Kern County, CA

686 public highway bridges

Kern County Bridge Snapshot

Kern County, California contains 686 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.7% are rated “Good,” 32.8% “Fair,” 4.5% “Poor,” and 4.5% 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.

686

Total Bridges

32.7%

Good

4.5%

Poor

4.5%

Structurally Deficient

Condition Distribution

Good

32.7% (224)

Fair

32.8% (225)

Poor

4.5% (31)

SD

4.5% (31)

All Bridges (686)

Sort:

STATE ROUTE 155

Over: RATTLESNAKE CREEK

06-KER-155-64.92, Kern, CA

Built 1951 Load: 24.3 t ADT: 6,600

UNION AVENUE

Over: EAST BRANCH CANAL

0.05MI N/O BELLE TERRACE, Kern, CA

Built 1914 Load: 24.3 t ADT: 29,000

WALKER BASIN RD

Over: RANCHERIA CREEK

1.17 MI W PIUTE MOUNTN RD, Kern, CA

Built 1971 Load: 24.3 t ADT: 180

OLD RIVER ROAD

Over: CALIFORNIA AQUEDUCT

0.5 MI NORTH OF RTE 166, Kern, CA

Built 1968 Load: 24.3 t ADT: 2,301

6TH STREET

Over: SANDY CREEK

SOUTH OF ASH STREET, Kern, CA

Built 1972 Load: 24.3 t ADT: 6,500

OLIVE DRIVE

Over: CANAL LATERAL 29

EAST OF STATE RD, Kern, CA

Built 1969 Load: 24.3 t ADT: 20,000

OLIVE DRIVE

Over: BEARDSLEY CANAL

0.1 MI W AIRPORT DR, Kern, CA

Built 1968 Load: 24.3 t ADT: 13,000

ROBERTS LANE

Over: BEARDSLEY CANAL

NORTH OF OLIVE DRIVE, Kern, CA

Built 1968 Load: 24.3 t ADT: 9,000

34TH STREET

Over: KERN ISLAND CANAL

WEST OF UNION, Kern, CA

Built 1972 Load: 24.3 t ADT: 10,689

BELLE TERRACE WAY

Over: KERN ISLAND CANAL

EAST OF 'H' STREET, Kern, CA

Built 1950 Load: 24.3 t ADT: 4,133

PLANZ ROAD

Over: KERN ISLAND CANAL

EAST OF SOUTH 'H' ST, Kern, CA

Built 1952 Load: 24.3 t ADT: 14,700

PACHECO ROAD

Over: KERN ISLAND CANAL

EAST OF SOUTH 'H' ST, Kern, CA

Built 1968 Load: 24.3 t ADT: 10,600

COLUMBUS AVE

Over: KERN ISLAND CANAL

0.2 MI W UNION AVE, Kern, CA

Built 1970 Load: 24.3 t ADT: 10,425

4TH STREET

Over: SANDY CREEK

SOUTH OF ASH STREET, Kern, CA

Built 1970 Load: 24.3 t ADT: 3,560

EMMONS PARK DRIVE

Over: SANDY CREEK

SOUTH OF ASH STREET, Kern, CA

Built 1970 Load: 24.3 t ADT: 500

TERRACE WAY

Over: KERN ISLAND CANAL

200' E CHESTER AVE, Kern, CA

Built 1958 Load: 24.3 t ADT: 4,960

WILLIAMS ST

Over: EAST SIDE CANAL

350 FT S MONTEREY ST, Kern, CA

Built 1967 Load: 24.3 t ADT: 5,300

ROBINSON ST

Over: EAST SIDE CANAL

SOUTH OF MONTEREY ST, Kern, CA

Built 1962 Load: 24.3 t ADT: 3,300

MILLER ST

Over: EAST SIDE CANAL

0.1 MI S MONTEREY ST, Kern, CA

Built 1960 Load: 24.3 t ADT: 6,300

GAGE ST

Over: EAST SIDE CANAL

0.1 MI S MONTEREY ST, Kern, CA

Built 1959 Load: 24.3 t ADT: 3,300

TULARE ST

Over: EAST SIDE CANAL

SOUTH OF MONTEREY ST, Kern, CA

Built 1950 Load: 24.3 t ADT: 4,300

VERNAL PLACE

Over: KERN ISLAND CANAL

0.1 MI N TERRACE WAY, Kern, CA

Built 1957 Load: 24.3 t ADT: 1,015

SOUTH GATE DR

Over: KERN ISLAND CANAL

EAST OF SOUTH 'H' ST, Kern, CA

Built 1957 Load: 24.3 t ADT: 1,500

BEALE AVENUE

Over: EAST SIDE CANAL

SOUTH MONTEREY STREET, Kern, CA

Built 1966 Load: 24.3 t ADT: 10,000

HALEY ST

Over: EAST SIDE CANAL

SOUTH MONTEREY ST, Kern, CA

Built 1957 Load: 24.3 t ADT: 2,876

MOUNTAIN VIEW RD

Over: EAST SIDE CANAL

0.1 MI W OF VINELAND ROAD, Kern, CA

Built 1955 Load: 24.3 t ADT: 290

RANCHERIA ROAD

Over: KERN RIVER

0.7 MI NORTH OF SR 178, Kern, CA

Built 1952 Load: 24.6 t ADT: 412

STATE ROUTE 99 NB

Over: BEARDSLEY CANAL

06-KER-099-R28.39, Kern, CA

Built 1964 Load: 24.9 t ADT: 55,000

GARDNER FIELD ROAD

Over: CALIFORNIA AQUEDUCT

0.5 MI EAST OF DUVALL ST, Kern, CA

Built 1968 Load: 25.9 t ADT: 1,072

CORCORAN RD

Over: POSO CREEK CHANNEL

7.4 MI N/O SR 46, Kern, CA

Built 1966 Load: 25.9 t ADT: 590

CADET ROAD

Over: CALIFORNIA AQUEDUCT

1.5 MI W GARDNER FIELD RD, Kern, CA

Built 1968 Load: 25.9 t ADT: 776

ALFRED HARREL HWY

Over: FAIRFAX ROAD

1.2 MI NE OF PANORAMA DR, Kern, CA

Built 1959 Load: 26.2 t ADT: 3,595

ALFRED HARREL HWY

Over: FAIRFAX ROAD

1.2 MI NE OF PANORAMA DR, Kern, CA

Built 1959 Load: 26.2 t ADT: 3,595

ALFRED HARREL HWY

Over: GOODMANVILLE ACCESS RD

1.5 MI NE OF FAIRFAX RD, Kern, CA

Built 1959 Load: 26.2 t ADT: 3,595

ALFRED HARREL HWY

Over: GOODMANVILLE ACCESS RD

1.5 MI NE OF FAIRFAX RD, Kern, CA

Built 1959 Load: 26.2 t ADT: 3,595

MERCED AVE

Over: UP RR

WEST OF S.H. 99, Kern, CA

Built 1968 Load: 26.2 t ADT: 760

CHESTER AVE NB

Over: KERN RIVER

0.3 MI S ROBERTS LANE, Kern, CA

Built 1978 Load: 26.9 t ADT: 9,973

LOKERN ROAD

Over: CALIFORNIA AQUEDUCT

1.5 MI WEST OF HWY 58, Kern, CA

Built 1967 Load: 27.2 t ADT: 2,400

STATE ROUTE 58

Over: CALIENTE CREEK OVERFLOW

06-KER-058-67.85, Kern, CA

Built 1960 Load: 27.5 t ADT: 10,000

STATE ROUTE 58

Over: CALIENTE CREEK OVERFLOW

06-KER-058-67.85, Kern, CA

Built 1960 Load: 27.5 t ADT: 13,000

DOYLE RANCH RD

Over: SOUTH FORK KERN RIVER

0.1 MI N OF RTE 178, Kern, CA

Built 1968 Load: 27.5 t ADT: 140

GOSFORD ROAD SB

Over: KERN RIVER CANAL

0.2 MI S TRUXTUN AVE, Kern, CA

Built 1984 Load: 27.5 t ADT: 17,700

AIRPORT DRIVE

Over: BEARDSLEY CANAL

0.1 MI S OF OLIVE DR, Kern, CA

Built 1951 Load: 28.5 t ADT: 25,500

STATE ROUTE 99

Over: KERN RIVER

06-KER-099-25.35-BKD, Kern, CA

Built 1961 Load: 29.8 t ADT: 140,000

CAMERON RD

Over: CACHE CREEK

1.8 MI W OF SR 58, Kern, CA

Built 1972 Load: 30.8 t ADT: 250

STATE ROUTE 58

Over: BENA ROAD

06-KER-058-74.18, Kern, CA

Built 1960 Load: 31.1 t ADT: 24,200

STATE ROUTE 58

Over: MAIN DRAIN CANAL

06-KER-058-27.82, Kern, CA

Built 1948 Load: 31.8 t ADT: 9,000

TUPMAN ROAD

Over: CALIFORNIA AQUEDUCT

2 MI S OF STATION ROAD, Kern, CA

Built 1965 Load: 31.8 t ADT: 690

STATE ROUTE 46

Over: FRIANT-KERN CANAL

06-KER-046-56.29, Kern, CA

Built 1950 Load: 32.1 t ADT: 7,700

STATE ROUTE 46 EB

Over: CALIFORNIA AQUEDUCT

06-KER-046-29.98, Kern, CA

Built 1967 Load: 32.1 t ADT: 12,000

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