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:

TROGE ROAD (E)

Over: ROCK CREEK

00.2 MI W FOSTER RD, Clackamas, OR

Built 1976 Load: 25.9 t ADT: 387

KUEHN ROAD

Over: KELLOGG CREEK

00.1 MI N OF ALDERCRST RD, Clackamas, OR

Built 1958 Load: 26.2 t ADT: 186

OR 99E (HWY 81)

Over: Pudding River

027 MI S CANBY, Clackamas, OR

Built 1922 Load: 26.3 t ADT: 13,789

ROAD

Over: COLLAWASH RIVER

S-14, T-7S, R-6E, WM, Clackamas, OR

Built 1956 Load: 26.3 t ADT: 100

ROAD

Over: COLLAWASH RIVER

S-27, T-6S, R-6E, WM, Clackamas, OR

Built 1956 Load: 26.3 t ADT: 100

OR 213 (HWY 160)

Over: Rock Creek

055 MI N CLACK MARION LN, Clackamas, OR

Built 1997 Load: 26.9 t ADT: 4,792

WILSONVILLE ROAD

Over: BOECKMAN CREEK

MP 12.62 WILSONVILLE RD, Clackamas, OR

Built 1986 Load: 27.2 t ADT: 11,613

ROAD

Over: CLACKAMAS RIVER

S-29, T-4S, R-5E, WM, Clackamas, OR

Built 1955 Load: 27.6 t ADT: 50

06 S 03 E 06.00:

Over: SOUTH FORK MOLALLA RIVER

7.2 miles SE of Molalla o, Clackamas, OR

Built 1954 Load: 27.9 t ADT: 50

WINDY CITY ROAD N

Over: LITTLE CEDAR CREEK

01.0 MI N OF UNION MILLS, Clackamas, OR

Built 1966 Load: 27.9 t ADT: 329

ROAD

Over: CLACKAMAS RIVER

S-01, T-8S, R-7E, WM, Clackamas, OR

Built 1964 Load: 28.1 t ADT: 270

RAINBOW RD

Over: EAGLE CREEK

02.3 MI S OF SMITH RD, Clackamas, OR

Built 2001 Load: 28.1 t ADT: 65

AMISIGGER RD

Over: DEEP CREEK

032 MI SW BORING, Clackamas, OR

Built 1957 Load: 28.2 t ADT: 15,600

BELL AVENUE

Over: JOHNSON CREEK

00.6 MI W OF 82ND AVENUE, Clackamas, OR

Built 1940 Load: 28.2 t ADT: 5,253

DOWTY ROAD

Over: EAGLE CREEK

01.0 MI SW OF HWY 224, Clackamas, OR

Built 2000 Load: 28.2 t ADT: 767

BARLOW TRAIL RD

Over: BOULDER CREEK

2.0 MI EAST OF RT. 26, Clackamas, OR

Built 1954 Load: 28.5 t ADT: 309

HWY 064 CONN

Over: WEST BRIDGE PARK

W END OF WEST LINN BRIDGE, Clackamas, OR

Built 1970 Load: 28.5 t ADT: 7,416

ROAD

Over: PINHEAD CREEK

S-07, T-7S, R-8E, WM, Clackamas, OR

Built 1956 Load: 28.7 t ADT: 270

KITZMILLER RD

Over: N FORK EAGLE CREEK

0.2 MI N OF EAGLE FERN RD, Clackamas, OR

Built 1960 Load: 28.8 t ADT: 133

Hwy 064 (I-205 NB)

Over: Tualatin River

5.0 MI S OF WILLAMETTE R, Clackamas, OR

Built 1970 Load: 28.8 t ADT: 36,229

ROAD

Over: LITTLE SANDY RIVER

S-13, T-2S, R-6E, WM, Clackamas, OR

Built 1965 Load: 29.1 t ADT: 50

Hwy 160

Over: Molalla River

1.5 MI S MULINO, Clackamas, OR

Built 1975 Load: 29.2 t ADT: 12,360

SOUTH SHORE BLVD

Over: OSWEGO LAKE

2 MI S OF LAKEVIEW BLVD, Clackamas, OR

Built 1934 Load: 29.2 t ADT: 9,661

Hwy 81SB - Hwy 171

Over: Johnson CK

AT HWY 81 & 171 INTCHGE, Clackamas, OR

Built 1968 Load: 29.2 t ADT: 10,847

ELLIOTT PRAIRIE RD

Over: BUTTE CREEK

MARION COUNTY LINE, Clackamas, OR

Built 1962 Load: 29.5 t ADT: 360

EAGLE FERN RD

Over: NORTH FORK EAGLE CREEK

2 MI SE OF FIRWOOD RD, Clackamas, OR

Built 1956 Load: 29.5 t ADT: 4,400

Hwy 064 (I-205 SB)

Over: Tualatin River

4.8 MI W OF WILLAMETTE R, Clackamas, OR

Built 1970 Load: 29.5 t ADT: 36,229

Hwy 160

Over: Milk Creek

IN MULINO, Clackamas, OR

Built 2009 Load: 29.5 t ADT: 14,308

TROGE ROAD (W)

Over: ROCK CREEK

00.66 MI W OF FOSTER RD, Clackamas, OR

Built 1968 Load: 29.8 t ADT: 387

Hwy 081 (OR 99E)

Over: Beaver Creek

5.3 MI SW OREGON CITY CC, Clackamas, OR

Built 1929 Load: 29.9 t ADT: 20,797

OR 213 (HWY 160)

Over: Garrett Creek

034 MI N CLACK MARION LN, Clackamas, OR

Built 1953 Load: 30.5 t ADT: 4,884

Hwy 064

Over: Creek

0.4 M E OF 1E INTERCHANGE, Clackamas, OR

Built 1971 Load: 30.5 t ADT: 96,436

BARLOW TRAIL RD

Over: SANDY RIVER

000 SLEEPY HOLLOW, Clackamas, OR

Built 1953 Load: 30.8 t ADT: 288

US 26 (HWY 026)

Over: ALDER CREEK

8.0 MI E OF SANDY, Clackamas, OR

Built 2005 Load: 30.8 t ADT: 15,711

ROAD

Over: STONE CREEK

S-35, T-5S, R-8E, WM, Clackamas, OR

Built 1959 Load: 30.9 t ADT: 75

CARUS ROAD

Over: PARROTT CREEK

01.0 MI E OF CENT. PT. RD, Clackamas, OR

Built 1969 Load: 31.1 t ADT: 525

MAPLELANE RD

Over: ABERNETHY CREEK

18 MI NE BEAVERCREEK RD, Clackamas, OR

Built 1932 Load: 31.4 t ADT: 16,500

07 S 04 E 02.00:

Over: MIDDLE FORK MOLALLA RIVE

7.2 miles SE of Molalla o, Clackamas, OR

Built 1974 Load: 31.8 t ADT: 5

ROAD

Over: CRIPPLE CREEK

S-22, T-5S, R-6E, WM, Clackamas, OR

Built 1924 Load: 31.8 t ADT: 24

ROAD

Over: NOHORN CREEK

S-23, T-7S, R-5E, WM, Clackamas, OR

Built 1963 Load: 31.8 t ADT: 50

SNUFFIN RD

Over: EAGLE CREEK

0.2 MI S OF EAGLE FERN PK, Clackamas, OR

Built 1956 Load: 31.8 t ADT: 5,000

COALMAN RD

Over: CEDAR CREEK

00.6 MI E OF TEN EYCK RD, Clackamas, OR

Built 1960 Load: 32.1 t ADT: 1,339

COLORADO ROAD

Over: TICKLE CREEK

00.75 MI S OF KELSO RD, Clackamas, OR

Built 1972 Load: 32.1 t ADT: 14

SE 172nd AVE

Over: ROCK CREEK

01.71 MI N OF HWY 212, Clackamas, OR

Built 1968 Load: 32.4 t ADT: 4,868

BRIGHTWOOD BR RD

Over: SANDY RIVER

0.3 MI NW OF BRIGHTWOOD, Clackamas, OR

Built 1964 Load: 32.4 t ADT: 16,500

ROAD

Over: CLACKAMAS RIVER

S-22, T-6S, R-7E, WM, Clackamas, OR

Built 1948 Load: 32.7 t ADT: 100

MAPLE GROVE RD (E)

Over: BEAVER CREEK

04.7 MI E OF MARION COUNT, Clackamas, OR

Built 1970 Load: 32.7 t ADT: 164

LOLO PASS RD

Over: SANDY RIVER

1 MI N OF HWY 26, Clackamas, OR

Built 1965 Load: 32.7 t ADT: 1,100

MT HOOD DRIVE

Over: CREEK

11800 SE MT SCOTT BLVD, H, Clackamas, OR

Built 1997 Load: 32.7 t ADT: 48

HEIPLE ROAD (W)

Over: CREEK

00.6 MI W OF HWY 224, Clackamas, OR

Built 1969 Load: 33.0 t ADT: 834

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