Kittitas County, WA

311 public highway bridges

Kittitas County Bridge Snapshot

Kittitas County, Washington contains 311 public highway bridges in the FHWA National Bridge Inventory. Roughly 37% are rated “Good,” 45.7% “Fair,” 9% “Poor,” and 9% 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 WA 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.

311

Total Bridges

37%

Good

9%

Poor

9%

Structurally Deficient

Condition Distribution

Good

37% (115)

Fair

45.7% (142)

Poor

9% (28)

SD

9% (28)

All Bridges (311)

Sort:

ABANDONED RAILROAD

Over: I-90

10.1 E JCT I-82, Kittitas, WA

Built 1915 ADT: 16,919

JOHN WAYNE TRAIL

Over: STATE ROUTE 10

15.7 E JCT SR 970, Kittitas, WA

Built 1929 ADT: 1,639

STAMPEDE RD

Over: I-90

8.3 E JCT SR 906, Kittitas, WA

Built 1958 ADT: 34,391

CABIN CR RD

Over: I-90

9.3 E JCT SR 906, Kittitas, WA

Built 1958 ADT: 32,578

EASTON ROAD

Over: I-90

16.8 E JCT SR 906, Kittitas, WA

Built 1959 ADT: 31,640

BULLFROG RD

Over: I-90

25.6 E JCT SR 906, Kittitas, WA

Built 1963 ADT: 33,906

THORP PRAIRIE RD

Over: I-90

3.9 E JCT SR 970, Kittitas, WA

Built 1965 ADT: 28,223

OAKES AVE

Over: I-90

26.5 E JCT SR 906, Kittitas, WA

Built 1965 ADT: 27,974

ELK HEIGHTS

Over: I-90

7.8 E JCT SR 970, Kittitas, WA

Built 1965 ADT: 28,223

TANEUM CREEK RD

Over: I-90, TANEUM CR CULVERT

11.0 E JCT SR 970, Kittitas, WA

Built 1965 ADT: 28,687

E-N RAMP

Over: I-90

28.4 E JCT SR 906, Kittitas, WA

Built 1965 ADT: 27,974

SR 970

Over: I-90 E CLE ELUM

31.1 E JCT SR 906, Kittitas, WA

Built 1966 ADT: 26,438

THORP HWY

Over: I-90

15.2 E JCT SR 970, Kittitas, WA

Built 1966 ADT: 28,687

US 97

Over: I-90, WEST ELLENSBURG

20.2 E JCT SR 970, Kittitas, WA

Built 1966 ADT: 30,634

HUNTZINGER RD

Over: I-90

25.6 E JCT I-82, Kittitas, WA

Built 1967 ADT: 16,919

I-82

Over: I-90

4.8 E JCT US 97, Kittitas, WA

Built 1968 ADT: 14,938

I-82

Over: E-E RAMP, I-90

4.8 E JCT US 97, Kittitas, WA

Built 1968 ADT: 14,938

I-82 EB

Over: E-E RAMP

0.1 E JCT I-90, Kittitas, WA

Built 1968 ADT: 7,853

COUNTY RD NO 6

Over: I-90

0.6 E JCT I-82, Kittitas, WA

Built 1968 ADT: 14,938

S MAIN ST

Over: I-90

4.6 E JCT I-82, Kittitas, WA

Built 1968 ADT: 17,603

PRATER RD

Over: I-90

7.0 E JCT I-82, Kittitas, WA

Built 1968 ADT: 16,919

I-90

Over: SR 906

2.7 E KING CO, Kittitas, WA

Built 1969 ADT: 607

TJOSSEM RD

Over: I-82

0.9 E JCT I-90, Kittitas, WA

Built 1970 ADT: 18,975

I-82

Over: SR 821, WHIPPLE WASTEWAY

20.4 N YAKIMA CO, Kittitas, WA

Built 1970 ADT: 1,151

I-82

Over: SR 821, WHIPPLE WASTEWAY

20.4 N YAKIMA CO, Kittitas, WA

Built 1970 ADT: 1,151

WEST EASTON RD

Over: I-90

15.6 E JCT SR 906, Kittitas, WA

Built 1975 ADT: 31,548

NO DATA ENTERED

Over: CABIN CREEK

NO DATA ENTERED, Kittitas, WA

Built 1989 ADT: 5

CHRISTENSEN ROAD

Over: HILINE CANAL

00.72 E FOX ROAD, Kittitas, WA

Built 1931 Load: 7.5 t ADT: 70

U PEOH POINT ROAD

Over: HILINE CANAL

00.85 W MARKOVICH R, Kittitas, WA

Built 1992 Load: 8.7 t ADT: 701

U PEOH POINT ROAD

Over: HILINE CANAL

01.26 SW I-90, Kittitas, WA

Built 1991 Load: 8.7 t ADT: 701

WESTSIDE ROAD

Over: HILINE CANAL

00.27 W WOOD& STEEL, Kittitas, WA

Built 1986 Load: 9.4 t ADT: 984

RED BRIDGE RD

Over: TEANAWAY RIVER

00.50 N&.45 W US970, Kittitas, WA

Built 1966 Load: 10.0 t ADT: 331

ROSS ROAD

Over: TURBINE CANAL

00.45 SE MORRISON R, Kittitas, WA

Built 1975 Load: 10.9 t ADT: 90

U PEOH POINT ROAD

Over: HILINE CANAL

01.64 W MARKOVICH R, Kittitas, WA

Built 1988 Load: 11.7 t ADT: 701

WATER STREET

Over: TOWN DITCH

00.24 SOUTH HELENA STREET, Kittitas, WA

Built 2003 Load: 13.0 t ADT: 6,556

WESTSIDE RD

Over: HILINE CANAL

00.03 S GOLF COURSE, Kittitas, WA

Built 1930 Load: 13.3 t ADT: 1,028

SOUTH THORP HWY

Over: WESTSIDE DITCH

00.10 N THORP CEM R, Kittitas, WA

Built 1926 Load: 13.6 t ADT: 853

SOUTH THORP HWY

Over: YAKIMA RIVER

00.30 SW I-90, Kittitas, WA

Built 1967 Load: 13.6 t ADT: 4,937

I-90

Over: COLUMBIA RIVER VANTAGE

26.4 E JCT I-82, Kittitas, WA

Built 1962 Load: 13.9 t ADT: 17,430

I-90

Over: CANYON RD & BNSF RR

3.3 E JCT US 97, Kittitas, WA

Built 1968 Load: 14.3 t ADT: 15,014

UNIVERSITY WAY

Over: B.N. RAILROAD

00.09 S REECER CR RD, Kittitas, WA

Built 1966 Load: 14.3 t ADT: 8,962

ROBINSON CAN ROAD

Over: LIGHT DITCH

00.09 W S THORP HWY, Kittitas, WA

Built 1957 Load: 14.9 t ADT: 885

EAST TANEUM ROAD

Over: TANEUM CREEK

00.43 E I-90, Kittitas, WA

Built 1957 Load: 15.2 t ADT: 134

THORP PRAIRIE ROAD

Over: HILINE CANAL

01.82 NW TANEUM RD, Kittitas, WA

Built 1995 Load: 15.2 t ADT: 275

FAIRVIEW ROAD

Over: HILINE CANAL

01.18 N RADER RD, Kittitas, WA

Built 1931 Load: 15.4 t ADT: 249

LIBERTY ROAD

Over: SWAUK CREEK

00.02 East of Hwy. 97, Kittitas, WA

Built 1955 Load: 15.4 t ADT: 291

SCHNEBLY ROAD

Over: HILINE CANAL

00.02 N RADER RD, Kittitas, WA

Built 1955 Load: 15.4 t ADT: 120

ROBBINS RD

Over: HILINE CANAL

00.34 N SMITHSON RD, Kittitas, WA

Built 1955 Load: 15.4 t ADT: 218

SMITHSON RD

Over: HILINE CANAL

00.85 NE ROBBINS RD, Kittitas, WA

Built 1931 Load: 15.4 t ADT: 24

CLARKE ROAD

Over: DRY CREEK

00.23 E US 97, Kittitas, WA

Built 1960 Load: 16.3 t ADT: 58

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026