Okanogan County, WA

163 public highway bridges

Okanogan County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Okanogan County, Washington contains 163 public highway bridges. Roughly 46% are rated “Good,” 44.8% “Fair,” and 7.4% “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.

163
Total Bridges
46%
Good
44.8%
Fair
7.4%
Poor Condition

Condition Distribution

Good
46% (75)
Fair
44.8% (73)
Poor
7.4% (12)

All Bridges (163)

COUNTY ROAD 9221

Fair

Over: SALMON CREEK

NWNWS31T34NR26E, Okanogan, WA

Built 1949 Load: 27.9 t ADT: 430

EIGHTMILE ROAD

Fair

Over: EIGHTMILE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1955 Load: 28.1 t ADT: 40

FAS ROUTE Z240

Fair

Over: OKANOGAN RIVER

.SWNWS27T40NR27E, Okanogan, WA

Built 1971 Load: 28.2 t ADT: 1,527

FAS ROUTE L242

Fair

Over: GOAT CREEK

1.5 MI SE MAZAMA, Okanogan, WA

Built 1971 Load: 29.5 t ADT: 338

US 97

Fair

Over: OKANOGAN RIVER

3.6 N JCT SR 173, Okanogan, WA

Built 1950 Load: 29.9 t ADT: 4,687

DUGOUT MTN RD

Fair

Over: LOST CREEK

NO DATA ENTERED, Okanogan, WA

Built 1981 Load: 30.2 t ADT: 25

COUNTY ROAD 4087

Fair

Over: PALMER CREEK

03.5 MI.S.NIGHTHAWK, Okanogan, WA

Built 1980 Load: 31.8 t ADT: 33

Cecil Creek Rd

Fair

Over: Sinlahekin Creek

2 miles south of Loomis, Okanogan, WA

Built 1975 Load: 32.7 t ADT: 20

Monse Bridge Rd

Fair

Over: OKANOGAN RIVER

.NWSES34T31NR25E, Okanogan, WA

Built 1967 Load: 33.4 t ADT: 479

BUTTERMILK BUTTE

Fair

Over: EAST FORK BUTTERMILK CR

NO DATA ENTERED, Okanogan, WA

Built 1992 Load: 34.0 t ADT: 15

COUNTY ROAD 9455

Fair

Over: LOST CREEK

17.4 MI.SE JCT.SH30, Okanogan, WA

Built 1958 Load: 35.4 t ADT: 52

SR 155

Fair

Over: OMAK CR

50.5 N DOUGLAS CO, Okanogan, WA

Built 1967 Load: 35.6 t ADT: 2,325

FAS ROUTE P240

Fair

Over: OKANOGAN RIVER

SENWS16T37NR27E, Okanogan, WA

Built 1999 Load: 36.0 t ADT: 2,816

MILL STREET

Fair

Over: SALMON CREEK

.31 MI WEST OF SR215, Okanogan, WA

Built 2006 Load: 36.6 t ADT: 450

COUNTY ROAD 1090

Fair

Over: BUTTER MILK CREEK

11.1 W.SR20 @ TWISP, Okanogan, WA

Built 1960 Load: 37.2 t ADT: 74

US 97

Fair

Over: METHOW RIVER

0.1 N JCT SR 153, Okanogan, WA

Built 1966 Load: 37.3 t ADT: 5,569

FAS ROUTE K241

Fair

Over: CHEWUCH RIVER

.SENWS2T35NR21E, Okanogan, WA

Built 1953 Load: 39.2 t ADT: 173

NO DATA ENTERED

Fair

Over: ANDREWS CREEK

NO DATA ENTERED, Okanogan, WA

Built 2006 Load: 40.8 t ADT: 50

IRR BIA RTE 66

Fair

Over: LOONEY CREEK

N.W. END OF BIA RT. 66, Okanogan, WA

Built 2001 Load: 42.9 t ADT: 50

TUNK VALLEY RD

Fair

Over: OKANOGAN RIVER

0.32 M E US 97, Okanogan, WA

Built 1969 Load: 43.5 t ADT: 650

BLACK CANYON ROAD

Fair

Over: BLACK CANYON CREEK

NO DATA ENTERED, Okanogan, WA

Built 1965 Load: 44.2 t ADT: 50

SR 213

Fair

Over: OKANOGAN RIVER

0.2 N JCT US 97, Okanogan, WA

Built 1962 Load: 45.4 t ADT: 678

COUNTY ROAD 1131

Fair

Over: WOLF CREEK

3.2 W.SR20 @ WNTHP, Okanogan, WA

Built 1963 Load: 45.4 t ADT: 2,423

IRR ROUTE 116

Fair

Over: STEPSTONE CREEK

13 KM NORTH OF NESPELEM, Okanogan, WA

Built 1998 Load: 50.7 t ADT: 50

US 97

Fair

Over: OKANOGAN RIVER

0.7 N JCT SR 155, Okanogan, WA

Built 1964 Load: 52.6 t ADT: 8,488

SR 20

Fair

Over: OKANOGAN RIVER

0.2 E JCT SR 215, Okanogan, WA

Built 1959 Load: 55.3 t ADT: 2,393

NO DATA ENTERED

Good

Over: UPPER S FK GOLD CREEK

NO DATA ENTERED, Okanogan, WA

Built 2009 ADT: 10

E. SIDE CHEWUCH

Good

Over: CHEWUCH RIVER

NO DATA ENTERED, Okanogan, WA

Built 1950 ADT: 24

NO DATA ENTERED

Good

Over: LITTLE BRIDGE CREEK

NO DATA ENTERED, Okanogan, WA

Built 2001 ADT: 10

4415030

Good

Over: LITTLE BRIDGE CREEK

NO DATA ENTERED, Okanogan, WA

Built 2001 ADT: 10

NO DATA ENTERED

Good

Over: BEN CREEK OVER LIBBY CRE

NO DATA ENTERED, Okanogan, WA

Built 2004 ADT: 5

NO DATA ENTERED

Good

Over: LOWER LIBBY CREEK

NO DATA ENTERED, Okanogan, WA

Built 2004 ADT: 50

NO DATA ENTERED

Good

Over: RAINY CREEK

NO DATA ENTERED, Okanogan, WA

Built 2006 ADT: 30

FSR 5400700

Good

Over: SLATE CREEK

NO DATA ENTERED, Okanogan, WA

Built 2009 ADT: 5

NO DATA ENTERED

Good

Over: REYNOLDS CREEK

NO DATA ENTERED, Okanogan, WA

Built 2008 ADT: 35

NO DATA ENTERED

Good

Over: MIDDLE FORK TOATS COULEE

NO DATA ENTERED, Okanogan, WA

Built 2011 ADT: 75

SR 20

Good

Over: EARLY WINTERS CREEK

8.0 E CHELAN CO, Okanogan, WA

Built 1968 Load: 12.0 t ADT: 1,372

SR 20

Good

Over: CUTTHROAT CREEK

4.5 E CHELAN CO, Okanogan, WA

Built 1968 Load: 15.6 t ADT: 1,159

KENDELL STREET

Good

Over: JOHNSON CREEK

0.3 NE US97 @RIVSD, Okanogan, WA

Built 1976 Load: 17.2 t ADT: 521

CHEWUCK ROAD

Good

Over: EIGHTMILE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 17.3 t ADT: 196

SR 20

Good

Over: H W CHANNEL METHOW R

37.7 E CHELAN CO, Okanogan, WA

Built 1945 Load: 18.8 t ADT: 4,843

OCR 3735

Good

Over: OMAK CREEK

0.29 NE.JCT.SR155, Okanogan, WA

Built 1968 Load: 18.8 t ADT: 1,339

EIGHTMILE ROAD

Good

Over: EIGHTMILE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 20.4 t ADT: 97

COUNTY ROAD 1535

Good

Over: METHOW RIVER

0.1 MI.E. JCT SR153, Okanogan, WA

Built 1990 Load: 20.4 t ADT: 27

W. TWISP RIVER RD

Good

Over: TWISP RIVER

NO DATA ENTERED, Okanogan, WA

Built 1958 Load: 20.9 t ADT: 30

ED FIGLINSKI RD

Good

Over: TUNK CREEK

1.1 MI.W.SYNAREP, Okanogan, WA

Built 1976 Load: 21.7 t ADT: 5

S. FK. GOLD CR

Good

Over: GOLD CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 21.8 t ADT: 60

MEADOWS/TOATS RD

Good

Over: TOATS COULEE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 22.7 t ADT: 153

MEADOWS/TOATS RD

Good

Over: TOATS COULEE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 23.6 t ADT: 153

COUNTY ROAD 1029

Good

Over: GOLD CREEK

0.61 N.JCT.SR153, Okanogan, WA

Built 1972 Load: 23.7 t ADT: 90

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.