Klamath County, OR

248 public highway bridges

Klamath County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Klamath County, Oregon contains 248 public highway bridges. Roughly 45.2% are rated “Good,” 44.4% “Fair,” and 5.2% “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.

248
Total Bridges
45.2%
Good
44.4%
Fair
5.2%
Poor Condition

Condition Distribution

Good
45.2% (112)
Fair
44.4% (110)
Poor
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.

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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.