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)

MERRILL PIT ROAD

Good

Over: IRRIGATION CANAL

005 MI S OF HWY 39, Klamath, OR

Built 1976 Load: 27.9 t ADT: 534

MILITARY CROSSING

Good

Over: IRRIGATION CANAL

096 MI E OF HWY 97, Klamath, OR

Built 1983 Load: 27.9 t ADT: 38

O'CONNOR ROAD

Good

Over: IRRIGATION CANAL

009 MI W OF MATNEY ROAD, Klamath, OR

Built 1966 Load: 27.9 t ADT: 85

OLD MIDLAND ROAD

Good

Over: IRRIGATION CANAL

003 MI W OF HOMEDALE ROAD, Klamath, OR

Built 1976 Load: 27.9 t ADT: 409

OLD MIDLAND ROAD

Good

Over: IRRIGATION CANAL

AT C CANAL, Klamath, OR

Built 1973 Load: 27.9 t ADT: 409

PAYGER ROAD

Good

Over: D IRRIGATION CANAL

0110 MI N OF HWY 50, Klamath, OR

Built 1993 Load: 27.9 t ADT: 83

POPE ROAD

Good

Over: IRRIGATION CANAL

002 MI N OF HWY 50, Klamath, OR

Built 1978 Load: 27.9 t ADT: 70

STATE LINE RD

Good

Over: DRAINAGE DITCH

039 MI E OF HWY 39, Klamath, OR

Built 1971 Load: 27.9 t ADT: 1,072

IVORY PINE ROAD

Good

Over: DRAINAGE SWALE

011 MI N HWY 140, Klamath, OR

Built 1981 Load: 27.9 t ADT: 248

IVORY PINE ROAD

Good

Over: DRAINAGE SWALE

014 MI N HWY 140, Klamath, OR

Built 1981 Load: 27.9 t ADT: 248

SPRAGUE RIVER RD

Good

Over: ROCK CREEK DRAIN

049 MI NW OF HWY 140, Klamath, OR

Built 1978 Load: 27.9 t ADT: 788

WEST BOUNDARY RD

Good

Over: SCOTT CREEK

029 MI W OF HWY 97, Klamath, OR

Built 1978 Load: 27.9 t ADT: 68

GODOWA SPRGS ROAD

Good

Over: SPRAGUE RIVER

012 MI N OF HWY 140, Klamath, OR

Built 1984 Load: 28.2 t ADT: 205

OR 39 (HWY 426)

Good

Over: USRS CANAL J

008 MI N ORE-CALIF LINE, Klamath, OR

Built 1982 Load: 29.2 t ADT: 2,101

W LANGELL VLY RD

Good

Over: IRRIGATION CANAL

003 MI NW MALONE DAM, Klamath, OR

Built 1995 Load: 29.8 t ADT: 108

TOWNSHIP ROAD

Good

Over: ADY CANAL

015 MI E OF HWY 97, Klamath, OR

Built 1999 Load: 29.9 t ADT: 315

DREWS ROAD

Good

Over: SYCAN RIVER

004 MI W OF GODOWA SPGS, Klamath, OR

Built 1982 Load: 29.9 t ADT: 89

ROAD

Good

Over: WILLIAMSON RIVER

(ORIG.# 3149 - 9.0), Klamath, OR

Built 1966 Load: 30.9 t ADT: 24

W LANGELL VLY RD

Good

Over: IRRIGATION CANAL

015 NW MALONE DAM, Klamath, OR

Built 1995 Load: 32.1 t ADT: 108

MODOC POINT HWY427

Good

Over: WILLIAMSON RIVER

5.6 MI S HWY 4 JCT, Klamath, OR

Built 1982 Load: 32.4 t ADT: 596

ROCKY POINT ROAD

Good

Over: FOURMILE CREEK

009 MI N OF HWY 140, Klamath, OR

Built 1965 Load: 32.4 t ADT: 546

CHINQUAPIN DR

Good

Over: LITTLE DESCHUTES R.

1.5 MI N OF OR 58, Klamath, OR

Built 2015 Load: 33.4 t ADT: 65

OR 62 (HWY 022)

Good

Over: WOOD RIVER

005 MI S FORT KLAMATH, Klamath, OR

Built 1965 Load: 34.0 t ADT: 544

US 97 (HWY 004)

Good

Over: KLAMATH R & BNSF

015 MI N HWY 420 JCT, Klamath, OR

Built 1995 Load: 34.7 t ADT: 4,872

SOUTH MERRILL ROAD

Good

Over: LOST RIVER

0009 MI S HWY 39, Klamath, OR

Built 2015 Load: 35.0 t ADT: 884

JOHNSON RD

Good

Over: LOST RIVER

010 MI E OF W LANGELL VLY, Klamath, OR

Built 2015 Load: 35.6 t ADT: 32

JOE WRIGHT RD

Good

Over: LOST RV DIVERSION CHAN

005 MI W OF WASHBURN, Klamath, OR

Built 1981 Load: 35.6 t ADT: 6,810

FOREST/SUBDIV ACCE

Good

Over: LITTLE DESCHUTES RIVER

4.5 M NORTH OF CRESCENT, Klamath, OR

Built 1975 Load: 36.3 t ADT: 56

SPRAGUE RIVER RD

Good

Over: SPRAGUE RIVER

5.79 MI FROM JCT FAS 164, Klamath, OR

Built 2008 Load: 36.6 t ADT: 770

OR 66 (HWY 021)

Good

Over: KLAMATH RIVER

160 MI JACKSON KLAMMATH L, Klamath, OR

Built 2005 Load: 37.6 t ADT: 1,200

SPRAGUE RIVER RD

Good

Over: SPRAGUE RIVER

024.05 MI FROM HWY. 97, Klamath, OR

Built 2007 Load: 38.6 t ADT: 1,238

IVORY PINE ROAD

Good

Over: N FORK SPRAGUE RV

040 N HWY 140, Klamath, OR

Built 1985 Load: 38.6 t ADT: 434

OR 140 (HWY 270)

Good

Over: GEARY CANAL

09.9 MI NW HWY 21 JCT, Klamath, OR

Built 1997 Load: 38.9 t ADT: 3,781

BIEHN STREET

Good

Over: UPRR

006 MI N OF OREGON AVE, Klamath, OR

Built 2000 Load: 39.9 t ADT: 1,260

JOE WRIGHT RD

Good

Over: NO 1 DRAIN DITCH

0034 MI W OF WASHBURN, Klamath, OR

Built 1989 Load: 39.9 t ADT: 3,577

IVORY PINE ROAD

Good

Over: S FK SPRAGUE RV

010 MI N HWY 140, Klamath, OR

Built 2021 Load: 40.2 t ADT: 248

MAIN ST

Good

Over: A CANAL

00.6 MI E OF ESPLANADE, Klamath, OR

Built 1970 Load: 40.5 t ADT: 8,171

41 S 15 E 0500: R

Good

Over: ROCK CREEK

17.5 miles SE of Bonanza, Klamath, OR

Built 2002 Load: 40.8 t ADT: 25

SILVER LAKE ROAD

Good

Over: WILLIAMSON RV

1784 MI E HWY 97, Klamath, OR

Built 1986 Load: 41.7 t ADT: 241

FALVEY ROAD

Good

Over: LOST RIVER

007 MI E OF MERRILL PIT R, Klamath, OR

Built 1989 Load: 41.7 t ADT: 209

HOMEDALE RD

Good

Over: NO 1 DRAIN DITCH

NEAR E END E-W RUNWAY, Klamath, OR

Built 1977 Load: 41.7 t ADT: 434

REEDER RD

Good

Over: IRRIGATION CANAL

0235 MI FROM HWY 140, Klamath, OR

Built 1974 Load: 41.7 t ADT: 359

SILVER LAKE ROAD

Good

Over: LENZ CREEK

0765 MI E OF HWY. 97, Klamath, OR

Built 1986 Load: 41.7 t ADT: 272

OR 62 (HWY 022)

Good

Over: FORT CREEK

007 MI S FORT KLAMATH, Klamath, OR

Built 2008 Load: 41.8 t ADT: 1,135

NO DATA ENTERED

Good

Over: ODELL CREEK

NO DATA ENTERED, Klamath, OR

Built 2006 Load: 42.1 t ADT: 50

CROSS ROAD

Good

Over: IRRIGATION CANAL C

T 40S R 9E SEC 12, Klamath, OR

Built 1977 Load: 42.4 t ADT: 990

MALONE ROAD

Good

Over: LOST RIVER

0097 MI S OF HWY 39, Klamath, OR

Built 1989 Load: 42.6 t ADT: 1,320

SPRING LAKE RD

Good

Over: LOST R DIVERSION CHANNEL

0226 MI N OF LOWER LK RD, Klamath, OR

Built 1981 Load: 42.8 t ADT: 721

OR 140 (HWY 020)

Good

Over: BIKEPATH

184 MI E KLAMATH FALLS, Klamath, OR

Built 2011 Load: 43.1 t ADT: 2,317

ANDERSON AVE

Good

Over: 1-C DRAIN DITCH

0010 MI E OF ALTAMONT DR, Klamath, OR

Built 1986 Load: 43.5 t ADT: 1,361

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