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)

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 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.