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)

ROAD

Fair

Over: MERRITT CREEK

NO DATA ENTERED, Klamath, OR

Built 1966 Load: 36.3 t ADT: 18

ROAD

Fair

Over: SYCAN RIVER

NO DATA ENTERED, Klamath, OR

Built 1961 Load: 36.3 t ADT: 43

OR 39 (HWY 050)

Fair

Over: LOST RIVER DIVERSION CAN

038 MI S HWY 20 JCT, Klamath, OR

Built 1966 Load: 38.6 t ADT: 4,438

WINDING ROAD

Fair

Over: CRESCENT CREEK

1 MILE N OF CRESCENT LAKE, Klamath, OR

Built 2005 Load: 40.8 t ADT: 50

Chil. Spur HWY 488

Fair

Over: WILLIAMSON RIVER

000 MI FROM CHILOQUIN, Klamath, OR

Built 2011 Load: 40.8 t ADT: 5,088

BURGDORF ROAD

Fair

Over: DRAINAGE DITCH

0187 MI N OF N POE VLY RD, Klamath, OR

Built 1977 Load: 40.8 t ADT: 189

ROAD

Fair

Over: ROCK CREEK

(ORIG.# 3419 - 0.5), Klamath, OR

Built 1977 Load: 40.9 t ADT: 10

US 97 (HWY 004)

Fair

Over: Wildlife Crossing

MP 180.13, Klamath, OR

Built 2020 Load: 41.8 t ADT: 5,461

E LANGELL

Fair

Over: LOST RIVER

.1 MI N BIG SPRINGS PARK, Klamath, OR

Built 2012 Load: 42.1 t ADT: 1,082

SEVENMILE ROAD

Fair

Over: IRRIGATION CANAL

015 MI WEST OF WEED ROAD, Klamath, OR

Built 1981 Load: 42.6 t ADT: 434

WESTSIDE ROAD

Fair

Over: CHERRY CREEK

115 MI F/HWY 62 @ FT, Klamath, OR

Built 1967 Load: 43.7 t ADT: 289

SQUAW FLAT ROAD

Fair

Over: BUCK CREEK

007 MI N OF HWY 140, Klamath, OR

Built 1982 Load: 45.4 t ADT: 136

6th Street

Fair

Over: D CANAL

MP 0.32, Klamath, OR

Built 2000 Load: 45.7 t ADT: 180

HOMEDALE RD

Fair

Over: A CANAL

017 MI S OF 6TH ST, Klamath, OR

Built 2003 Load: 46.3 t ADT: 10,392

DIXON RD

Fair

Over: ANNIE CREEK SLOUGH

001 MI E OF HWY 62, Klamath, OR

Built 1978 Load: 47.2 t ADT: 87

CHEESE FACTORY RD

Fair

Over: IRRIGATION CANAL

002 MI W LANGELL VLY RD, Klamath, OR

Built 2002 Load: 48.3 t ADT: 169

US 97 (HWY 004)

Fair

Over: GILCHRIST TIMBER RD.

120 MI N WILLIAM HWY JCT., Klamath, OR

Built 2005 Load: 49.2 t ADT: 5,461

HARBOR ISLES BLVD

Fair

Over: HARBOR ISLE G C ACCESS

004 EAST OF KLAMATH LAKE, Klamath, OR

Built 1982 Load: 51.8 t ADT: 594

MCQUISTON ROAD

Fair

Over: DRAINAGE DITCH

005 MI S 7-MI ROAD, Klamath, OR

Built 1978 Load: 54.4 t ADT: 32

US 97 (HWY 004)

Fair

Over: UPRR

069 MI S HWY 18 JCT, Klamath, OR

Built 2006 Load: 56.4 t ADT: 5,418

CRYSTAL SPRINGS RD

Fair

Over: LOST RIVER

0.02 E OF REEDER ROAD, Klamath, OR

Built 2006 Load: 64.2 t ADT: 600

ROAD

Fair

Over: SOUTH FORK SPRAGUE RIVER

NO DATA ENTERED, Klamath, OR

Built 1967 Load: 72.6 t ADT: 84

W CRESCENT LK ACCE

Fair

Over: WHITEFISH CREEK

W END CRESCENT LAKE, Klamath, OR

Built 1979 Load: 77.2 t ADT: 250

S SIDE BYPASS

Good

Over: UPRR

20 MILES OF KFALLS, Klamath, OR

Built 1986 Load: 8.7 t ADT: 9,380

40 S 14HE 03.00:

Good

Over: WILDHORSE CREEK

10.3 miles SE of Bonanza, Klamath, OR

Built 1970 Load: 9.4 t ADT: 25

WASHBURN WAY

Good

Over: BNRR

ON WASHBURN WAY, Klamath, OR

Built 1962 Load: 13.0 t ADT: 6,301

NICHOLSON ROAD

Good

Over: ANNIE CREEK SLOUGH

0185 MI WEST OF HWY 62, Klamath, OR

Built 1960 Load: 14.9 t ADT: 344

NO DATA ENTERED

Good

Over: THOMAS CREEK ARCH

NO DATA ENTERED, Klamath, OR

Built 1998 Load: 15.6 t ADT: 50

SO.ADAMS POINT RD.

Good

Over: J IRRIGATION CANAL

007 MI S OF HWY 50, Klamath, OR

Built 1979 Load: 19.8 t ADT: 176

CHIN ROAD

Good

Over: IRRIGATION CANAL

004 MI S OF HWY 39, Klamath, OR

Built 1985 Load: 20.1 t ADT: 92

GAINES ROAD

Good

Over: J IRRIGATION CANAL

0055 MI S OF HWY 50, Klamath, OR

Built 1979 Load: 20.1 t ADT: 70

HARPOLD ROAD

Good

Over: J IRRIGATION CANAL

005 MI S OF HWY 50, Klamath, OR

Built 1979 Load: 20.1 t ADT: 409

HILL ROAD

Good

Over: IRRIGATION CANAL

0010 MI S OF ANDERSON RD, Klamath, OR

Built 1965 Load: 20.1 t ADT: 360

SEVENMILE ROAD

Good

Over: SEVENMILE CR

059 MI F/HWY 62 @ FT, Klamath, OR

Built 1995 Load: 20.7 t ADT: 274

DIXON RD

Good

Over: WOOD RIVER

011 MI E OF HWY 62, Klamath, OR

Built 1978 Load: 21.7 t ADT: 83

HARPOLD ROAD

Good

Over: LOST RIVER

0.5 MI S BONANZA, Klamath, OR

Built 1999 Load: 23.0 t ADT: 761

41 S 14HE 22.00:

Good

Over: LOST RIVER

17.5 miles SE of Bonanza, Klamath, OR

Built 1957 Load: 23.3 t ADT: 25

W LANGELL VLY RD

Good

Over: IRRIGATION CANAL

010 MINW ST BARNABUS CHUR, Klamath, OR

Built 2020 Load: 23.4 t ADT: 216

34 S 07 E 31.00:

Good

Over: WOOD RIVER

10.3 miles W of Hwy 97 (M, Klamath, OR

Built 2004 Load: 23.7 t ADT: 5

US 97 (HWY 004)

Good

Over: KLAMATH STRAITS

104 MI S KLAMATH FALLS, Klamath, OR

Built 1981 Load: 25.6 t ADT: 4,095

HOMEDALE RD

Good

Over: LOST RIVER DIV. CHANNEL

008 MI S OF HENLEY ROAD, Klamath, OR

Built 1979 Load: 25.9 t ADT: 332

HILDEBRAND RD

Good

Over: BUCK CREEK DRAIN

030 MI N&E OF HWY 140, Klamath, OR

Built 1981 Load: 26.2 t ADT: 76

SHASTA WAY

Good

Over: A CANAL

40 FT W OF ALAMEDA BYP, Klamath, OR

Built 1979 Load: 26.2 t ADT: 16,068

Sun Cr Co-Op Road

Good

Over: Sun Creek

Sun Pass, Klamath, OR

Built 1900 Load: 26.9 t ADT: 10

W LANGELL VLY RD

Good

Over: IRRIGATION CANAL

010 MI E TEARE RD, Klamath, OR

Built 1992 Load: 27.9 t ADT: 214

SILVER LAKE ROAD

Good

Over: WILLIAMSON RIVER CANAL

1743 MI E HWY 97, Klamath, OR

Built 1986 Load: 27.9 t ADT: 241

BUESING ROAD

Good

Over: IRRIGATION CANAL

011 MI W OF I00F CEM RD, Klamath, OR

Built 1983 Load: 27.9 t ADT: 56

DREWS ROAD

Good

Over: DRAINAGE DITCH

0855 MI E OF SPRAGUE R RD, Klamath, OR

Built 1973 Load: 27.9 t ADT: 137

MCCULLEY ROAD

Good

Over: JIRRIGATION CANAL

0085 MI S OF HWY 50, Klamath, OR

Built 1979 Load: 27.9 t ADT: 164

MALONE ROAD

Good

Over: D IRRIGATION CANAL

003 MI N OF MALIN HWY, Klamath, OR

Built 1985 Load: 27.9 t ADT: 326

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial