County profile · official public datasets

Chelan County, WA

149 public highway bridges tracked in the FHWA National Bridge Inventory: 57.7% rated Good, 34.2% Fair, 8.1% Poor.

149
Public bridges
57.7%
Good condition
8.1%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Chelan County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

28th
of 39 on Poor share
8.1%
Poor-condition share
149
public highway bridges
1974
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Chelan County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Chelan County ranks #28 of 39 Washington counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.1%). Chelan County, Washington contains 149 public highway bridges. Roughly 57.7% are rated “Good,” 34.2% “Fair,” and 8.1% “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.

Total bridges

149

Public highway bridges in Chelan County

Good condition

57.7%

86 of 149 rated 7-9

Fair condition

34.2%

51 of 149 rated 5-6

Poor condition

8.1%

12 of 149 rated 4 or below

In-state Poor-share rank

#28 of 39

Among Washington counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 149 NBI-tracked bridges by lowest applicable component rating.

Good
57.7% (86)
Fair
34.2% (51)
Poor
8.1% (12)

Chelan County's Poor-condition bridges carry 71,315 vehicle crossings a day

That is 14.3% of the county's reported daily bridge traffic on 8.1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 5,943 crossings a day against 2,618 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 149 of 149 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

50.3% of Chelan County's bridges have passed the 50-year mark

75 of the 149 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 57.7% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 36% of the county's Poor-condition bridge traffic

US 2 over COLUMBIA RIVER, built 1975, carries 25,688 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 12-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 71,315 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Chelan County's bridges were built

149 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 26 of the county's bridges still in the inventory were built, which is 17.4% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1974) matches the Washington average (1975).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Chelan County compares with Washington's closest counties by inventory size

The 5 Washington counties nearest Chelan County in number of bridges, with their condition splits. Its 8.1% Poor share is the 5th-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1974 is in line with the group.

Showing the 5 closest of 38 Washington counties eligible for comparison.

Bridge inventory size and condition shares for Chelan County and the 5 Washington counties closest to it in inventory size
County Bridges Poor
Okanogan County 161 8.1%
Cowlitz County 160 3.8%
Clallam County 151 6%
Chelan County (this page) 149 8.1%
Franklin County 134 4.5%
Mason County 133 4.5%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Chelan County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Chelan County, both outside Washington so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside WA (149 bridges here).

Similar average build year

Nearest mean year-built outside WA (1974 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All bridges (149)

OLD MONITOR ROAD

Fair

Over: WENATCHEE RIVER

00.2S JCT S9 97, Chelan, WA

Built 1907 Load: 6.8 t ADT: 363

US 2

Fair

Over: ICICLE DITCH SPILLWAY

16.3 E JCT SR 207, Chelan, WA

Built 1940 Load: 13.6 t ADT: 12,506

US 97ALT

Fair

Over: ENTIAT RIVER

14.3 N JCT US 2, Chelan, WA

Built 1959 Load: 15.9 t ADT: 7,342

ROAD

Fair

Over: MISSION CREEK

NO DATA ENTERED, Chelan, WA

Built 1949 Load: 17.3 t ADT: 10

US 2

Fair

Over: PESHASTIN CREEK

0.3 E JCT US 97, Chelan, WA

Built 1940 Load: 17.5 t ADT: 7,134

CO RD 30170

Fair

Over: PESHASTIN CR

09.0SW DRYDEN, Chelan, WA

Built 1923 Load: 17.5 t ADT: 440

CHUMSTICK HWY

Fair

Over: CHUMSTICK CR

4.2 N JCT SR 2, Chelan, WA

Built 1952 Load: 17.8 t ADT: 2,886

OLD WEST MALAGA RD

Fair

Over: STEMILT CREEK

300 FROM STEMILT CRK RD, Chelan, WA

Built 1936 Load: 17.8 t ADT: 2

SERVICE ROAD

Fair

Over: ICICLE CREEK

1.3 MI SSW OF THE OFFICE, Chelan, WA

Built 1939 Load: 18.1 t ADT: 2

MALAGA-ALCOA HWY

Fair

Over: STEMILT CR.

2.7 from S. WENATCHEE AV, Chelan, WA

Built 1951 Load: 18.1 t ADT: 5,578

RAINY CREEK

Fair

Over: LITTLE WENATCHEE RIVER

ALT. RT. TO STAMPEDE PASS, Chelan, WA

Built 1949 Load: 19.1 t ADT: 50

ENTIAT RIVER ROAD

Fair

Over: ENTIAT RIVER

02.76W JCT SR 97, Chelan, WA

Built 1941 Load: 19.4 t ADT: 1,583

WOODIN AVE

Fair

Over: CHELAN RIVER

34.8 N JCT US 2, Chelan, WA

Built 1927 Load: 19.4 t ADT: 3,024

STEHEKIN VALLEY RO

Fair

Over: STEHEKIN RIVER

11.3 Miles NW of Stehekin, Chelan, WA

Built 1974 Load: 20.0 t ADT: 20

SERVICE ROAD

Fair

Over: ICICLE CANAL

0.1 MI ESE OF OFFICE, Chelan, WA

Built 1939 Load: 20.9 t ADT: 10

STEHEKIN VALLEY RO

Fair

Over: RAINBOW CREEK

Approximately 3 miles fro, Chelan, WA

Built 1973 Load: 20.9 t ADT: 50

PIONEER AVENUE

Fair

Over: MISSION CREEK

0.1 MI W DIVISION, Chelan, WA

Built 1936 Load: 21.4 t ADT: 3,900

OLD MONITOR ROAD

Fair

Over: WENATCHEE RIVER

00.07W SR 97, Chelan, WA

Built 1930 Load: 22.4 t ADT: 1,857

LABYRINTH MTN. RD.

Fair

Over: RAINY CREEK

NO DATA ENTERED, Chelan, WA

Built 1956 Load: 23.6 t ADT: 50

US 2

Fair

Over: WENATCHEE RIVER

2.6 E JCT US 97, Chelan, WA

Built 1959 Load: 24.3 t ADT: 8,342

SERVICE ROAD

Fair

Over: ICICLE CREEK

0.2 MI E OF OFFICE, Chelan, WA

Built 1935 Load: 24.5 t ADT: 2

US 97

Fair

Over: PESHASTIN CREEK

9.4 N KITTITAS CO, Chelan, WA

Built 1958 Load: 24.5 t ADT: 5,791

US 97

Fair

Over: PESHASTIN CREEK

9.5 N KITTITAS CO, Chelan, WA

Built 1958 Load: 24.5 t ADT: 5,791

US 97

Fair

Over: PESHASTIN CREEK

12.1 N KITTITAS CO, Chelan, WA

Built 1958 Load: 24.5 t ADT: 5,791

US 97

Fair

Over: PESHASTIN CREEK

12.5 N KITTITAS CO, Chelan, WA

Built 1958 Load: 24.5 t ADT: 5,791

CHIWAWA ROAD

Fair

Over: ROCK CREEK

NO DATA ENTERED, Chelan, WA

Built 1961 Load: 24.5 t ADT: 100

SR 285

Fair

Over: WENATCHEE RIVER & BNSF

1.5 N JCT SR 285COWENTCH, Chelan, WA

Built 1933 Load: 24.5 t ADT: 19,498

STEHEKIN VALLEY RO

Fair

Over: STEHEKIN RIVER

12.5 Miles NW of Stehekin, Chelan, WA

Built 1971 Load: 24.5 t ADT: 10

CASCADE ORCHARD RD

Fair

Over: WENATCHEE RIVER

00.83S SR 2, Chelan, WA

Built 1965 Load: 24.6 t ADT: 3,349

Old Blewett Road

Fair

Over: Peshastin Creek

0.99 Mi W. of SR 97, Chelan, WA

Built 1977 Load: 24.6 t ADT: 26

CHELAN FALLS ROAD

Fair

Over: CHELAN RIVER

00.20N CHELAN FALLS, Chelan, WA

Built 1976 Load: 24.9 t ADT: 1,089

ROAD

Fair

Over: MILL CREEK

NO DATA ENTERED, Chelan, WA

Built 1984 Load: 25.3 t ADT: 25

SR 285

Fair

Over: S WENATCHEE AVE

0.2 N DOUGLAS CO, Chelan, WA

Built 1973 Load: 25.6 t ADT: 47,049

US 2

Fair

Over: US 2 RAMP

14.4 E JCT US 97, Chelan, WA

Built 1952 Load: 26.2 t ADT: 13,195

ROAD

Fair

Over: PESHASTIN CREEK

NO DATA ENTERED, Chelan, WA

Built 1963 Load: 26.3 t ADT: 5

BEAVER VALLEY ROAD

Fair

Over: WENATCHEE R

14.4 N JCT SR 2, Chelan, WA

Built 1966 Load: 28.5 t ADT: 2,018

ROAD

Fair

Over: ICICLE CREEK

NO DATA ENTERED, Chelan, WA

Built 1966 Load: 29.1 t ADT: 300

FRENCH CORRAL

Fair

Over: MAD RIVER

NO DATA ENTERED, Chelan, WA

Built 1957 Load: 29.2 t ADT: 100

LITTLE WENATCHE RD

Fair

Over: WHITE RIVER

01.26W END OF SR207, Chelan, WA

Built 1962 Load: 29.2 t ADT: 241

US 2

Fair

Over: WENATCHEE R

1.3 E JCT US 97, Chelan, WA

Built 1962 Load: 30.8 t ADT: 8,342

US 2

Fair

Over: WENATCHEE RIVER

1.7 E JCT US 97, Chelan, WA

Built 1962 Load: 30.8 t ADT: 8,342

Ingalls Creek Road

Fair

Over: Ingalls Creek

MP 1.4 Ingalls Creek Road, Chelan, WA

Built 1968 Load: 31.1 t ADT: 4

MOE RIDGE ROAD

Fair

Over: MAD RIVER

544 SO. OF MAD RIVER RD., Chelan, WA

Built 2001 Load: 33.0 t ADT: 65

ACCESS RD

Fair

Over: PESHASTIN CREEK

18.0 N KITTITAS CO, Chelan, WA

Built 1979 Load: 34.5 t ADT: 100

ENTIAT VALLEY

Fair

Over: NORTH FORK ENTIAT RIVER

NO DATA ENTERED, Chelan, WA

Built 1948 Load: 38.1 t ADT: 100

E LEAVENWORTH ROAD

Fair

Over: ICICLE CREEK

03.05 LEAVENWORTH, Chelan, WA

Built 1947 Load: 41.5 t ADT: 3,349

COTTAGE AVENUE

Fair

Over: WENATCHEE RIVER

0.14W JCT US2 & 97, Chelan, WA

Built 1983 Load: 48.0 t ADT: 8,366

ROAD

Fair

Over: DOCTOR CREEK

NO DATA ENTERED, Chelan, WA

Built 2006 Load: 48.1 t ADT: 5

DRYDEN MAIN STREET

Fair

Over: WENATCHEE RIVER

00.0 DRYDEN MAIN ST, Chelan, WA

Built 1980 Load: 48.3 t ADT: 833

US 2

Fair

Over: WENATCHEE RIVER

1.7 E JCT US 97, Chelan, WA

Built 1947 Load: 51.7 t ADT: 8,342
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.