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)

US 97

Good

Over: BONAPARTE CR

22.4 N JCT SR 215, Okanogan, WA

Built 1957 Load: 24.5 t ADT: 5,549

COUNTY ROAD 4719

Good

Over: NINE MILE CREEK

1.75 NO.JCT.9480, Okanogan, WA

Built 1980 Load: 24.9 t ADT: 352

ORTELL ROAD

Good

Over: EIGHTMILE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1955 Load: 25.4 t ADT: 25

FALLS CREEK ROAD

Good

Over: FALLS CREEK

NO DATA ENTERED, Okanogan, WA

Built 1950 Load: 25.4 t ADT: 25

NO DATA ENTERED

Good

Over: WAR CREEK

NO DATA ENTERED, Okanogan, WA

Built 2005 Load: 26.2 t ADT: 50

SALMON MEADOWS RD

Good

Over: N. FK SALMON CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 26.3 t ADT: 76

REYNOLDS RD

Good

Over: TWISP RIVER

NO DATA ENTERED, Okanogan, WA

Built 1961 Load: 26.3 t ADT: 21

Conconogan Road

Good

Over: West Fork Salmon Creek

Conconully Reservoir, Okanogan, WA

Built 2018 Load: 26.6 t ADT: 30

COUNTY ROAD 1089

Good

Over: TWISP RIVER

6.9 W.SR20 @ TWISP, Okanogan, WA

Built 1960 Load: 26.6 t ADT: 65

SR 20

Good

Over: RAILROAD

0.3 E JCT SR 215, Okanogan, WA

Built 1959 Load: 27.2 t ADT: 2,393

CUB/GOAT CR RD

Good

Over: GOAT CREEK

NO DATA ENTERED, Okanogan, WA

Built 1957 Load: 27.2 t ADT: 63

COUNTY ROAD 1075

Good

Over: TWISP RIVER

4.1 W.SR20 @ TWISP, Okanogan, WA

Built 1974 Load: 27.5 t ADT: 21

CHEWUCK ROAD

Good

Over: FALLS CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 27.8 t ADT: 196

RAY ROAD

Good

Over: N. FK SALMON CR

NO DATA ENTERED, Okanogan, WA

Built 1965 Load: 28.1 t ADT: 53

OCR 3358

Good

Over: OMAK CREEK

0.43 NE.JCT.SR155, Okanogan, WA

Built 1973 Load: 28.5 t ADT: 463

KNOX ROAD, 3817

Good

Over: TUNK CREEK

2.7 MI.W.SYNAREP, Okanogan, WA

Built 1976 Load: 29.5 t ADT: 22

BUMBLEBEE RD

Good

Over: GOLD CREEK

NO DATA ENTERED, Okanogan, WA

Built 1967 Load: 30.9 t ADT: 30

COUNTY ROAD 1637

Good

Over: BEAVER CREEK

5.4 MI.N.JCT.SR20, Okanogan, WA

Built 1962 Load: 31.4 t ADT: 35

PELICAN CREEK RD

Good

Over: NORTH FORK SALMON CR

6.1 MILES N OF CONCUNULLY, Okanogan, WA

Built 1964 Load: 31.8 t ADT: 2

NO DATA ENTERED

Good

Over: EAST FORK BUTTERMILK

NO DATA ENTERED, Okanogan, WA

Built 2001 Load: 32.4 t ADT: 10

HATCHERY ENTRANCE

Good

Over: FOGHORN IRRIGATION CANAL

453 TWIN LAKES ROAD, Okanogan, WA

Built 2012 Load: 32.7 t ADT: 60

US 97

Good

Over: SIWASH CREEK

0.6 N JCT SR 20, Okanogan, WA

Built 1948 Load: 32.7 t ADT: 4,117

TWISP RIVER ROAD

Good

Over: LITTLE BRIDGE CREEK

8.07 Mi West of Twisp, Okanogan, WA

Built 2008 Load: 32.7 t ADT: 321

NO DATA ENTERED

Good

Over: CUB CREEK

NO DATA ENTERED, Okanogan, WA

Built 2009 Load: 33.4 t ADT: 50

BUFFALO LAKE RD

Good

Over: LITTLE NESPELEM RIVER

1.2 MI SE IND. AGCY, Okanogan, WA

Built 2014 Load: 33.4 t ADT: 244

KLIPCHUCK ROAD

Good

Over: EARLY WINTER CREEK

ROAD TO KLIPCHUCK CG, Okanogan, WA

Built 1972 Load: 34.5 t ADT: 15

SR 20

Good

Over: BONAPARTE CREEK

7.7 E JCT US 97, Okanogan, WA

Built 2001 Load: 38.2 t ADT: 1,377

Salmon Creek Rd

Good

Over: Salmon Creek

2.24 MILES N. OF SR 215, Okanogan, WA

Built 2020 Load: 39.5 t ADT: 292

SR 20

Good

Over: H W CHANNEL METHOW R

38.4 E CHELAN CO, Okanogan, WA

Built 1946 Load: 39.9 t ADT: 4,843

SR 215

Good

Over: SALMON CR

0.6 N JCT SR 20, Okanogan, WA

Built 1950 Load: 39.9 t ADT: 5,130

NO DATA ENTERED

Good

Over: S. FORK GOLD CREEK

NO DATA ENTERED, Okanogan, WA

Built 2006 Load: 40.5 t ADT: 30

FAS ROUTE W240

Good

Over: SIMILKAMEEN RIVER

.SENW S13,T40,R25, Okanogan, WA

Built 1973 Load: 42.1 t ADT: 122

Salmon Creek Rd

Good

Over: Salmon Creek

3 miles NW of Okanogan, Okanogan, WA

Built 2022 Load: 42.8 t ADT: 430

SR 20

Good

Over: TWISP R

38.8 E CHELAN CO, Okanogan, WA

Built 2000 Load: 44.4 t ADT: 4,423

OCR 3683

Good

Over: NESPELEM RIVER

5.13 NO. JCT. SR 155, Okanogan, WA

Built 2017 Load: 46.0 t ADT: 51

OCR 3683

Good

Over: NESPELEM RIVER

5.1 mi N. SR 155, Okanogan, WA

Built 2022 Load: 46.3 t ADT: 51

SINLAHEKIN RD

Good

Over: BLUE LAKE OUTLET

9.5 MI S. OF LOOMIS, Okanogan, WA

Built 2018 Load: 46.7 t ADT: 36

SR 20

Good

Over: BEAVER CREEK

1.8 E JCT SR 153, Okanogan, WA

Built 2006 Load: 47.2 t ADT: 1,342

OCR 3586

Good

Over: LITTLE NESPELEM RIVER

2.4 E. INDIAN AGCY., Okanogan, WA

Built 2017 Load: 51.8 t ADT: 42

OAK STREET

Good

Over: OKANOGAN RIVER

0.09 SW SR 215, Okanogan, WA

Built 2003 Load: 53.8 t ADT: 4,100

SR 153

Good

Over: BEAVER CREEK

29.3 N JCT US 97, Okanogan, WA

Built 2001 Load: 54.1 t ADT: 2,077

COUNTY ROAD 2045

Good

Over: LOUP LOUP CREEK

3.98 MI N JCT SR20, Okanogan, WA

Built 2014 Load: 57.7 t ADT: 20

SR 20

Good

Over: METHOW RIVER

39.6 E CHELAN CO, Okanogan, WA

Built 2002 Load: 61.7 t ADT: 4,614

SR 20

Good

Over: EARLY WINTERS CREEK

13.4 E CHELAN CO, Okanogan, WA

Built 1968 Load: 62.6 t ADT: 1,372

SR 20

Good

Over: BONAPARTE CR

4.6 E JCT US 97, Okanogan, WA

Built 2000 Load: 67.1 t ADT: 1,780

US 97

Good

Over: GN RR-COUNTY ROAD

4.1 N JCT SR 20, Okanogan, WA

Built 1964 Load: 68.0 t ADT: 7,166

Greenacres Rd

Good

Over: Johnson Creek

4 miles west of Riverside, Okanogan, WA

Built 2023 Load: 71.3 t ADT: 265

SR 20

Good

Over: LITTLE BOULDER CREEK

18.8 E CHELAN CO, Okanogan, WA

Built 2005 Load: 89.8 t ADT: 1,372

US 97

Good

Over: DAN CREEK

3.9 N JCT SR 17, Okanogan, WA

Built 1900 Load: 96.9 t ADT: 3,398

COLUMBIA RIVER RD

Good

Over: OMAK CREEK

0.77 mi S. Jct. SR155, Okanogan, WA

Built 2006 Load: 96.9 t ADT: 553

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.