Clackamas County, OR

367 public highway bridges

Clackamas County Bridge Snapshot

Clackamas County, Oregon contains 367 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.2% are rated “Good,” 54.2% “Fair,” 2.5% “Poor,” and 2.5% 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.

367

Total Bridges

29.2%

Good

2.5%

Poor

2.5%

Structurally Deficient

Condition Distribution

Good

29.2% (107)

Fair

54.2% (199)

Poor

2.5% (9)

SD

2.5% (9)

All Bridges (367)

Sort:

WILSONVILLE RD

Over: CORRAL CREEK

015 MI SW WILSONVILLE, Clackamas, OR

Built 1958 Load: 18.1 t ADT: 2,626

Hwy 171

Over: Clack Rvr. (Cripple Cr.)

22.3 MI SE ESTACADA, Clackamas, OR

Built 1952 Load: 18.8 t ADT: 422

OR 99E(Hwy81) SB

Over: Hillside

1.3 MI S Oregon City CC, Clackamas, OR

Built 1949 Load: 19.1 t ADT: 7,876

ESTACADA ROAD

Over: DU BOIS CREEK

0.11 MI. W. OF HWY 211, Clackamas, OR

Built 1997 Load: 19.1 t ADT: 86

Hwy 81 SB

Over: Mollala River

In Canby, Clackamas, OR

Built 1963 Load: 19.4 t ADT: 9,751

HENRICI RD

Over: ABERNETHY CREEK

2.5 MI W OF FASA609, Clackamas, OR

Built 1963 Load: 19.4 t ADT: 24,600

FEYRER PARK RD

Over: MOLLALA OVERFLOW

1.5 MI E O HWY 211, Clackamas, OR

Built 1958 Load: 19.4 t ADT: 3,700

CANBY-MARQUAM HWY

Over: MOLALLA RIVER

005 MILE SO OF CANBY, Clackamas, OR

Built 1930 Load: 19.8 t ADT: 2,038

PETES MOUNTAIN RD

Over: TUALATIN RIVER

0.2 MI FROM WILLAMETTE R., Clackamas, OR

Built 1977 Load: 19.8 t ADT: 2,060

Hwy 001

Over: Willamette River

AT WILLAMETTE RIVER, Clackamas, OR

Built 1953 Load: 19.8 t ADT: 112,440

OR 224 (HWY 171)

Over: EAGLE CREEK

4.3 MI N OF HWY 161 JCT, Clackamas, OR

Built 1972 Load: 19.8 t ADT: 9,224

Hwy 064 (I-205 NB)

Over: Prosperity Park Rd

1.1 MI S OF STAFFORD RD, Clackamas, OR

Built 1970 Load: 19.8 t ADT: 36,229

CO RD 77

Over: JOHNSON CREEK

0001 MI NW MCLOUGHLIN BLV, Clackamas, OR

Built 1993 Load: 20.4 t ADT: 15,104

WHISKEY HILL RD

Over: ROCK CREEK

045 MI E HWY 99E, Clackamas, OR

Built 1957 Load: 20.4 t ADT: 13,900

LINWOOD AVE

Over: JOHNSON CREEK

0.07 MI S OF JOHN CR BLVD, Clackamas, OR

Built 1938 Load: 20.7 t ADT: 7,673

OR 224 (HWY 171)

Over: UPRR

0.3 MI EAST OF I-205, Clackamas, OR

Built 1984 Load: 20.7 t ADT: 24,467

OR 224 (HWY 171)

Over: CLACK RVR. (CARTER BR.)

15.3 MI SE ESTACADA, Clackamas, OR

Built 1954 Load: 20.7 t ADT: 486

Hwy 064 (I-205 SB)

Over: Prosperity Park Rd

1.1 MI S OF STAFFORD RD, Clackamas, OR

Built 1969 Load: 20.7 t ADT: 36,229

BARLOW TRAIL RD

Over: CLEAR CREEK

0.1 MI W OF LOLO PASS RD, Clackamas, OR

Built 1930 Load: 21.1 t ADT: 51,600

OR 224 (HWY 171)

Over: CLACKAMAS RIVER

26.5 MI SE ESTACADA, Clackamas, OR

Built 1958 Load: 21.2 t ADT: 267

HULT ROAD (S)

Over: MILK CREEK

0.4 MI N OF HWY 211, Clackamas, OR

Built 1956 Load: 21.4 t ADT: 319

OR 224 (HWY 171)

Over: CLACK RIVER (ARMSTRONG)

15.7 MI SE ESTACADA, Clackamas, OR

Built 1954 Load: 21.4 t ADT: 486

ROAD

Over: ZIGZAG RIVER

S-11, T-3S, R-7E, WM, Clackamas, OR

Built 1966 Load: 21.8 t ADT: 80

ROAD

Over: CLEAR FORK SANDY RIVER

S-17, T-2S, R-8E, WM, Clackamas, OR

Built 1975 Load: 21.8 t ADT: 15

CENTRAL POINT RD

Over: BEAVER CREEK

BTWN GEIGER&CRITSER RD, Clackamas, OR

Built 1936 Load: 21.9 t ADT: 4,300

KITZMILLER RD

Over: BEAR CREEK

0.5 MI E OF EAGLE FERN RD, Clackamas, OR

Built 1956 Load: 22.0 t ADT: 133

DICKEY PRAIRIE RD

Over: TROUT CREEK

04.3 MI S OF DICKEY PR, Clackamas, OR

Built 1960 Load: 22.2 t ADT: 51

MILLER RD

Over: ROCK CREEK

00.5 MI W OF BARLOW ROAD, Clackamas, OR

Built 1960 Load: 22.2 t ADT: 151

SPRINGWATER ROAD

Over: CLEAR CREEK

005MI SE OF CARVER BRIDGE, Clackamas, OR

Built 1951 Load: 22.2 t ADT: 13,600

WINDY CITY ROAD S

Over: MILK CREEK

00.1 MI N OF UNION MILLS, Clackamas, OR

Built 1960 Load: 22.4 t ADT: 628

FISCHERS MILL RD

Over: CLEAR CREEK

030 MI SE REDLAND, Clackamas, OR

Built 1957 Load: 22.4 t ADT: 1,100

ROAD

Over: ZIGZAG RIVER

S-17, T-3S, R-8E, WM, Clackamas, OR

Built 1950 Load: 22.7 t ADT: 25

FAUBION LOOP

Over: BEAR CREEK

0.03 MI S OF HWY 26, Clackamas, OR

Built 1930 Load: 22.9 t ADT: 35

LADD HILL RD

Over: CORRAL CREEK

MI N OF, Clackamas, OR

Built 1958 Load: 23.0 t ADT: 453

THOMAS ROAD

Over: ROCK CREEK

30 MI E OF HWY 213, Clackamas, OR

Built 1957 Load: 23.0 t ADT: 17,900

SHADY DELL RD

Over: MOLALLA OVERFLOW

00.0 MI E OF ROBBINS RD, Clackamas, OR

Built 1959 Load: 23.0 t ADT: 338

BROKEN BRIDGE DR

Over: HACKET CREEK

UNKNOWN, Clackamas, OR

Built 2000 Load: 23.2 t ADT: 121

LONE ELDER RD

Over: GRIBBLE CREEK

1.0 MI W OF HWY 170, Clackamas, OR

Built 1960 Load: 23.3 t ADT: 17,700

ROAD

Over: CLACKAMAS RIVER

OFF 224 AT JCT FR #54, Clackamas, OR

Built 1948 Load: 23.5 t ADT: 50

Hwy 161

Over: Clear Creek

6.10 MI SW OF ESTACADA, Clackamas, OR

Built 1931 Load: 23.6 t ADT: 2,736

OR 99E(Hwy 81)

Over: Kellogg Lake Outlet

at Milwaukie CC, Clackamas, OR

Built 1934 Load: 23.6 t ADT: 26,143

EAGLE CREEK ROAD

Over: EAGLE CREEK

1.40 MI SOUTH OF HWY 211, Clackamas, OR

Built 1952 Load: 24.0 t ADT: 2,781

OATFIELD ROAD

Over: KELLOGG CREEK

AT MILWAUKIE SCL, Clackamas, OR

Built 1953 Load: 24.0 t ADT: 10,094

BOLLAND ROAD

Over: GRIBBLE CREEK

00.02 MI E OF GRIBBLE RD, Clackamas, OR

Built 1962 Load: 24.0 t ADT: 138

Hwy 064 Conn

Over: Mt Scott Creek

2.4 MI S OF PORTLAND SCL, Clackamas, OR

Built 2003 Load: 25.3 t ADT: 29,064

ROAD

Over: OAK GROVE FORK CLACKAMA*

S-03, T-6S, R-7E, WM, Clackamas, OR

Built 1953 Load: 25.4 t ADT: 50

ROAD

Over: BULL RUN RIVER

S-34, T-1S, R-5E, WM, Clackamas, OR

Built 1958 Load: 25.4 t ADT: 25

SE 55TH AVENUE

Over: JOHNSON CREEK

00.2 MI S OF JOHN CR BLVD, Clackamas, OR

Built 1955 Load: 25.6 t ADT: 982

US 26 (HWY 026)

Over: N FK DEEP CREEK

3.5 MI E GRESHAM ECL, Clackamas, OR

Built 1965 Load: 25.6 t ADT: 26,458

RINGO ROAD

Over: MILK CREEK

00.0 MI N OF UNION MILLS, Clackamas, OR

Built 1961 Load: 25.9 t ADT: 463

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 5, 2026