Wasco County, OR

148 public highway bridges

Wasco County Bridge Snapshot

Wasco County, Oregon contains 148 public highway bridges in the FHWA National Bridge Inventory. Roughly 27.7% are rated “Good,” 54.7% “Fair,” 8.1% “Poor,” and 8.1% 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 OR 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.

148

Total Bridges

27.7%

Good

8.1%

Poor

8.1%

Structurally Deficient

Condition Distribution

Good

27.7% (41)

Fair

54.7% (81)

Poor

8.1% (12)

SD

8.1% (12)

All Bridges (148)

Sort:

ROAD

Over: CLEAR CREEK IRRIGATION *

S-17, T-5S, R-10E, WM, Wasco, OR

Built 1958 Load: 28.3 t ADT: 20

TYGH VALLEY ROAD

Over: TYGH CREEK

TYGH VALLEY ORE, Wasco, OR

Built 1974 Load: 29.2 t ADT: 1,526

ROAD

Over: WHITE RIVER

S-19, T-4S, R-10E, WM, Wasco, OR

Built 1971 Load: 31.8 t ADT: 50

IRR ROUTE 13

Over: WARM SPRINGS RIVER

3KM SW OF KAH-NEE-TA, Wasco, OR

Built 2004 Load: 32.4 t ADT: 200

HISTORIC BARLOW RD

Over: BARLOW CREEK

S-13, T-4S, R-10E, WM, Wasco, OR

Built 2023 Load: 33.0 t ADT: 50

HWY 100

Over: CHENOWETH CREEK

003 MI W THE DALLES, Wasco, OR

Built 2017 Load: 35.0 t ADT: 5,798

W 9TH STREET

Over: MILL CREEK

CITY OF THE DALLES, Wasco, OR

Built 1987 Load: 35.3 t ADT: 2,138

NO DATA ENTERED

Over: CLEAR CREEK DITCH

S-15, T-5E, R-10E, WM, Wasco, OR

Built 1962 Load: 35.3 t ADT: 20

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

13.0 MI W OF HWY 195, Wasco, OR

Built 2012 Load: 35.3 t ADT: 41

RIVER RD

Over: UPRR

WEST DALLES @ CHEN INTER, Wasco, OR

Built 1998 Load: 36.3 t ADT: 1,980

DUFUR BYPASS

Over: FIFTEENMILE CREEK

DUFUR OREGON, Wasco, OR

Built 1977 Load: 36.9 t ADT: 2,100

EIGHTMILE ROAD

Over: EIGHTMILE CREEK

1.6 MI S. OF HWY 197, Wasco, OR

Built 1997 Load: 38.1 t ADT: 239

US 26 (HWY 053)

Over: WARM SPRINGS RIVER

1.39M S. JCT HWY 44, Wasco, OR

Built 1998 Load: 38.6 t ADT: 3,897

US 26 (HWY 053)

Over: CLEAR CREEK

022 MI N HWY 44 JCT, Wasco, OR

Built 2022 Load: 40.8 t ADT: 4,101

ROAD

Over: BADGER CREEK

S-02, T-4S, R11E, WM, Wasco, OR

Built 1988 Load: 40.9 t ADT: 50

MILL CR RD

Over: NORTH FORK MILL CREEK

11.0 MI ON MILL CR ROAD, Wasco, OR

Built 1975 Load: 41.7 t ADT: 15

IRR BIA RTE 7

Over: MILL CREEK

1 KM N JCT RT 7001 & RT 7, Wasco, OR

Built 1998 Load: 41.8 t ADT: 75

HWY 293

Over: ANTELOPE CREEK

REPLACE W/ 18922 126 S, Wasco, OR

Built 2005 Load: 42.1 t ADT: 259

I-84 (HWY 002)

Over: FIFTEEN MILE CREEK

023 MI E THE DALLES, Wasco, OR

Built 2010 Load: 42.4 t ADT: 17,980

BOYD LOOP ROAD

Over: FIFTEENMILE CREEK

0.5 MI EAST DUFUR ORE, Wasco, OR

Built 1977 Load: 42.6 t ADT: 181

WAMIC MARKET ROAD

Over: THREEMILE CREEK

WAMIC ORE, Wasco, OR

Built 1979 Load: 42.6 t ADT: 1,089

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

12.4 MI W OF HWY 195, Wasco, OR

Built 1975 Load: 42.6 t ADT: 40

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

12.1 MI W OF HWY 195, Wasco, OR

Built 1975 Load: 42.6 t ADT: 40

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

10.4 MI W OF HWY 195, Wasco, OR

Built 1975 Load: 42.6 t ADT: 40

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

11.1 MI W OF HWY 195, Wasco, OR

Built 1975 Load: 42.6 t ADT: 40

W 10TH STREET

Over: MILL CREEK

CITY OF THE DALLES, Wasco, OR

Built 1975 Load: 43.1 t ADT: 8,665

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

7.5 MI W OF HWY 195, Wasco, OR

Built 1975 Load: 43.5 t ADT: 42

FIVEMILE ROAD

Over: FIVEMILE CREEK

6.1 MI. W OF HWY 195, Wasco, OR

Built 1998 Load: 44.4 t ADT: 62

RESERVOIR RD

Over: S FORK MILL CR

0.5 MI. S ON MILL CRK RD., Wasco, OR

Built 2003 Load: 47.2 t ADT: 11

I-84 (HWY 002)

Over: MOSIER CREEK

IN MOSIER, Wasco, OR

Built 2009 Load: 48.9 t ADT: 22,259

DUFUR VALLEY ROAD

Over: FIFTEENMILE CREEK

4.5 MI. W. OF DUFUR, Wasco, OR

Built 1975 Load: 49.6 t ADT: 590

NO DATA ENTERED

Over: THREEMILE CREEK

NO DATA ENTERED, Wasco, OR

Built 2021 Load: 56.7 t ADT: 50

LOWER EIGHTMILE RD

Over: EIGHTMILE CREEK

7.6 MILES N OF HWY 197, Wasco, OR

Built 2001 Load: 56.7 t ADT: 627

UPPER FIVEMILE RD

Over: FIVEMILE CREEK

12.9 MI W OF HWY 195, Wasco, OR

Built 1950 Load: 64.2 t ADT: 40

HWY 292

Over: THREE MILE CREEK

011 MI E THE DALLES, Wasco, OR

Built 2003 Load: 69.0 t ADT: 5,416

IRR BIA RTE 9

Over: BEAVER CREEK

4 KM WEST OF SIMNASHO, Wasco, OR

Built 1974 Load: 87.0 t ADT: 500

ROAD

Over: WHITE RIVER

S-31, T-4S, R-10E, WM, Wasco, OR

Built 1958 ADT: 50

IRR BIA RTE 2

Over: BADGER CREEK

30 KM NW OF WARM SPRINGS, Wasco, OR

Built 1999 Load: 10.8 t ADT: 10

MILL CR RD

Over: MILL CREEK

3.7 MI. S ON MILL CRK RD., Wasco, OR

Built 1941 Load: 11.0 t ADT: 625

EMERSON ROBERTS RD

Over: FIFTEENMILE CREEK

AT EMERSON, Wasco, OR

Built 1958 Load: 11.0 t ADT: 30

ROAD

Over: CEDAR CREEK (CLIP CRK?)

S-34, T-4S, R-10E, WM, Wasco, OR

Built 1991 Load: 58.1 t ADT: 50

IRR BIA RTE 6001

Structurally Deficient

Over: MILL CREEK

6.5 KM W OF OLD MILL CAMP, Wasco, OR

Built 1988 ADT: 10

IRR BIA RTE 34

Structurally Deficient

Over: WARM SPRINGS RIVER

42 KM NW OF WARM SPRINGS, Wasco, OR

STEELE ROAD

Structurally Deficient

Over: THREEMILE CREEK

0.5 MI E OF THREEMILE RD, Wasco, OR

Built 1950 Load: 11.3 t ADT: 598

MOSIER CREEK ROAD

Structurally Deficient

Over: MOSIER CREEK

0.3 MI S OF WILSON RD, Wasco, OR

Built 1950 Load: 13.9 t ADT: 244

MOSIER CREEK ROAD

Structurally Deficient

Over: MOSIER CREEK

2.0 MI S OF WILSON RD, Wasco, OR

Built 1950 Load: 19.8 t ADT: 229

COMPANY HOLLOW RD

Structurally Deficient

Over: FIFTEENMILE CREEK

FAIRBANKS, Wasco, OR

Built 1955 Load: 21.1 t ADT: 45

ROAD

Structurally Deficient

Over: BOULDER CREEK (CRANE)

S-35, T-4S, R-10E, WM, Wasco, OR

Built 1985 Load: 61.7 t ADT: 50

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