Klamath County, OR

248 public highway bridges

Klamath County Bridge Snapshot

Klamath County, Oregon contains 248 public highway bridges in the FHWA National Bridge Inventory. Roughly 45.2% are rated “Good,” 44.4% “Fair,” 5.2% “Poor,” and 5.2% 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 OR 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.

248
Total Bridges
45.2%
Good
5.2%
Poor
5.2%
Structurally Deficient

Condition Distribution

Good
45.2% (112)
Fair
44.4% (110)
Poor
5.2% (13)
SD
5.2% (13)

All Bridges (248)

OR 140 (HWY 020)

Unknown

Over: CITY ST & UPRR

010 MI E OF HWY 4 IN K F, Klamath, OR

Built 1957 ADT: 424

US 97 (HWY 004)

Unknown

Over: HWY 422

016 MI N HWY 422 JCT, Klamath, OR

Built 1946 ADT: 1,144

OR 39 (HWY 050) SB

Unknown

Over: US 97 (HWY 004) NB

0002 MI S HWY 04 JCT, Klamath, OR

Built 1962 ADT: 3,401

US 97 (HWY 004)

Unknown

Over: NEVADA AVE

010 MI S HWY 50 JCT, Klamath, OR

Built 1959 ADT: 7,049

US 97 (HWY 004)

Unknown

Over: HWY 20 & LINK RIVER

001 E HWY 20 JCT, Klamath, OR

Built 1963 ADT: 3,633

OFF RAMP U S 97

Unknown

Over: LINK RIVER

004 MI S HWY 20 JCT, Klamath, OR

Built 1967 ADT: 100

US 97 (HWY 004)

Unknown

Over: UPRR & PELICAN CITY RD

004 MI S HWY 50 JCT, Klamath, OR

Built 1959 ADT: 6,200

RIVERSIDE ST

Unknown

Over: US 97 (HWY 004)

009 MI S HWY 20 JCT, Klamath, OR

Built 1968 ADT: 8,287

US 97 (HWY 004)

Unknown

Over: OR 66 (HWY 021)

021 MI S HWY 20 JCT, Klamath, OR

Built 1968 ADT: 7,545

WASHBURN WAY

Unknown

Over: OR 140 (HWY 424)

S.CITY LIMITS,K.FALLS, Klamath, OR

Built 1998 ADT: 9,011

US 97 (HWY 004)

Unknown

Over: CALIFORNIA AVE

003 MI N HWY 20 JCT, Klamath, OR

Built 2004 ADT: 6,802

US 97 (HWY 004)

Unknown

Over: OLD ALIGN & BNSF

007 MI S HWY 20 JCT, Klamath, OR

Built 2005 ADT: 800

OR 58 (HWY 018) WB

Unknown

Over: US 97 (HWY 004) SB

001 MI W THE DALLES JCT, Klamath, OR

Built 2008 ADT: 2,439

HOPE STREET

Fair

Over: A CANAL

0064 MI S OF 6TH ST, Klamath, OR

Built 1960 Load: 7.1 t ADT: 5,931

HOMEDALE RD

Fair

Over: IRRIGATION CANAL

003 MI S OF OLD MID ROAD, Klamath, OR

Built 1963 Load: 10.0 t ADT: 340

TOPSY GRADE ROAD

Fair

Over: ROCK CREEK

15 MI W OF DORRIS HWY 97, Klamath, OR

Built 1984 Load: 11.3 t ADT: 1

LAKESHORE DRIVE

Fair

Over: LINK RIVER

NEVADA AVE. KLAMATH FALLS, Klamath, OR

Built 1926 Load: 12.3 t ADT: 3,241

WEED ROAD

Fair

Over: WOOD RIVER

0411 MI S HWY 62, Klamath, OR

Built 1974 Load: 12.6 t ADT: 76

MATNEY WAY

Fair

Over: LOST RIVER

009 MI E OF HWY 39, Klamath, OR

Built 1974 Load: 12.6 t ADT: 123

ROUTE 12 MUNSON RO

Fair

Over: GOODBYE CREEK

1.3 Miles northeast of ju, Klamath, OR

Built 1955 Load: 12.7 t ADT: 1,465

SWAN LAKE ROAD

Fair

Over: DRAINAGE DITCH

153 MI NW OF HWY 140, Klamath, OR

Built 1973 Load: 13.6 t ADT: 31

REEDER RD

Fair

Over: LOST RIVER

001 MI N OF HILL RD, Klamath, OR

Built 1956 Load: 13.9 t ADT: 612

SPRING LAKE RD

Fair

Over: SPR.LAKE RD/DRAIN DITCH

023 MI NO OF LOWER LK RD, Klamath, OR

Built 1971 Load: 14.3 t ADT: 721

US 97 (HWY 004)

Fair

Over: WILLIAMSON RIVER

031 MI S HWY 422 JCT, Klamath, OR

Built 1989 Load: 14.9 t ADT: 6,178

CAMPBELL RD

Fair

Over: DITCH

016 MI N OF HWY 140, Klamath, OR

Built 1981 Load: 14.9 t ADT: 72

OR 140 (HWY 020)

Fair

Over: LINK RIVER

IN KLAMATH FALLS, Klamath, OR

Built 1931 Load: 15.2 t ADT: 17,436

GIFT ROAD

Fair

Over: LOST RIVER

004 MI E OF W LANGL VLY R, Klamath, OR

Built 1973 Load: 15.2 t ADT: 97

ROUTE 12 MUNSON RO

Fair

Over: ANNIE CREEK

0.4 miles north of OR Rou, Klamath, OR

Built 1954 Load: 15.4 t ADT: 1,470

OR 140 (HWY 020)

Fair

Over: USRS CANAL

033 MI E KLAMATH FALLS, Klamath, OR

Built 1930 Load: 16.2 t ADT: 22,894

HARPOLD RD

Fair

Over: IRRIGATION CANAL

014 MILES NO JCT FAS 169, Klamath, OR

Built 1960 Load: 16.2 t ADT: 902

MCQUISTON ROAD

Fair

Over: SEVEN MILE CANAL

109 MI S OF 7-MI ROAD, Klamath, OR

Built 1984 Load: 16.2 t ADT: 15

GERBER ROAD

Fair

Over: BEN HALL CREEK

0970 MI E LANGELL VLY RD, Klamath, OR

Built 1963 Load: 16.5 t ADT: 16

OR 39 (HWY 050)

Fair

Over: LOST RIVER

043 MI N HWY 426 JCT, Klamath, OR

Built 1941 Load: 16.8 t ADT: 4,074

DEHLINGER ROAD

Fair

Over: LOST RIVER

6.47 MI FR 39, NEAR HILL, Klamath, OR

Built 1975 Load: 17.5 t ADT: 339

US 97 (HWY 004)

Fair

Over: UPRR LOBERT

053 S HWY 422 JCT, Klamath, OR

Built 1989 Load: 17.8 t ADT: 6,178

ANDERSON RD

Fair

Over: IRRIGATION CANAL

013 MI S&E OF HWY 39, Klamath, OR

Built 1970 Load: 18.1 t ADT: 82

OR 39 (HWY 020)CON

Fair

Over: PEDESTRIAN

HWY 4 RAMP TO HWY 20, Klamath, OR

Built 1963 Load: 18.5 t ADT: 8,718

RESORT ACCESS ROAD

Fair

Over: ODELL CREEK

ODELL LAKE OUTLET, Klamath, OR

Built 1955 Load: 20.0 t ADT: 50

OR 66 (HWY 021)

Fair

Over: KLAMATH RIVER (KENO)

001 KENO OREGON, Klamath, OR

Built 1985 Load: 20.1 t ADT: 2,280

MATNEY ROAD

Fair

Over: IRRIGATION CANAL

004 MI S OF O'CONNOR ROAD, Klamath, OR

Built 1969 Load: 20.1 t ADT: 96

LAKEPORT BLVD

Fair

Over: S P RAILROAD

NEAR PORT OF ENTRY, Klamath, OR

Built 1972 Load: 20.1 t ADT: 523

ON RAMP TO HWY 4

Fair

Over: US GOVT CANAL

011 MI S JCT WITH HWY 50, Klamath, OR

Built 1959 Load: 20.4 t ADT: 891

SHORT ROAD

Fair

Over: CANAL

.64 MI FROM E HWY .39, Klamath, OR

Built 1980 Load: 20.4 t ADT: 2,309

MATNEY WAY

Fair

Over: IRRIGATION CANAL

009 MI SE O'CONNOR ROAD, Klamath, OR

Built 1970 Load: 20.4 t ADT: 89

N POE VALLEY RD

Fair

Over: HARPOLD DAM-LOST RIVER

.03 MI FROM HARPOLD ROAD, Klamath, OR

Built 1964 Load: 20.4 t ADT: 371

ANDERSON RD

Fair

Over: IRRIGATION CANAL

031 MI E OF HWY 39, Klamath, OR

Built 1981 Load: 20.7 t ADT: 329

CAMPBELL RD

Fair

Over: PORTION OF NFK SPRAGUE R

008MI WEST OF CAMP SIX RD, Klamath, OR

Built 1982 Load: 20.7 t ADT: 44

CAMPBELL RD

Fair

Over: SO FORK SPRAGUE RIVER

018 MI NORTH OF HWY 140, Klamath, OR

Built 1980 Load: 21.1 t ADT: 72

E LANGELL VLY RD

Fair

Over: MILLER CREEK

023 MI SE GERBER RD, Klamath, OR

Built 1975 Load: 21.4 t ADT: 216

DRAZIL RD

Fair

Over: D IRRIGATION CANAL

008 MI N OF HWY 50, Klamath, OR

Built 1979 Load: 22.0 t ADT: 127

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