Benton County, OR

190 public highway bridges

Benton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Benton County, Oregon contains 190 public highway bridges. Roughly 31.6% are rated “Good,” 56.8% “Fair,” and 6.8% “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.

190
Total Bridges
31.6%
Good
56.8%
Fair
6.8%
Poor Condition

Condition Distribution

Good
31.6% (60)
Fair
56.8% (108)
Poor
6.8% (13)

All Bridges (190)

BRUCE RD

Fair

Over: OVERFLOW

0079 MI W OF HWY 99-W, Benton, OR

Built 1996 Load: 40.8 t ADT: 129

OR 99W (HWY 91)

Fair

Over: Miller Creek

016 MI N BENTON LANE CO L, Benton, OR

Built 2008 Load: 41.5 t ADT: 5,283

OR 223 (Hwy 191)

Fair

Over: Price Creek

015 MI S KINGS VALLEY, Benton, OR

Built 1967 Load: 43.4 t ADT: 922

LLEWELLYN RD

Fair

Over: OFLOW CHANNEL

0272 MI W OF HWY 99-W, Benton, OR

Built 2001 Load: 44.5 t ADT: 437

MAXFIELD CR RD

Fair

Over: MAXFIELD CREEK

0047 MI E OF CR 06541, Benton, OR

Built 1968 Load: 45.4 t ADT: 566

NW OAK CREEK DR

Fair

Over: OAK CREEK

0.4 MILES W OF 53RD ST, Benton, OR

Built 1984 Load: 45.7 t ADT: 2,893

NORTON CREEK RD

Fair

Over: NORTON CREEK

0124 MI N OF HWY 20, Benton, OR

Built 2015 Load: 47.0 t ADT: 123

Llewellyn Road

Fair

Over: Muddy Creek

0250 Mi W of Hwy 99W, Benton, OR

Built 2004 Load: 47.6 t ADT: 437

APPLEGATE ST

Fair

Over: NEWTON CREEK

SOUTH OF HWY 033 (US 20), Benton, OR

Built 2001 Load: 49.9 t ADT: 572

NORTH ALBANY ROAD

Fair

Over: THORNTON LAKE

05. N HWY 20, Benton, OR

Built 2015 Load: 50.5 t ADT: 3,750

NW BUCHANAN AVE

Fair

Over: DIXON CREEK

W OF NW 13TH ST, Benton, OR

Built 1981 Load: 51.8 t ADT: 7,698

GREASY CREEK RD

Fair

Over: GREASY CREEK

002 MI E OF HWY 34, Benton, OR

Built 1972 Load: 52.6 t ADT: 139

SW 35TH ST

Fair

Over: OAK CR

00.1 S OF WASHINGTON WAY, Benton, OR

Built 1978 Load: 58.6 t ADT: 5,930

OR 34 (Hwy 027)

Fair

Over: Yew Creek

065 MI NW HWY 201 JCT, Benton, OR

Built 1966 Load: 69.0 t ADT: 1,349

NW 10TH ST

Fair

Over: DIXON CR

.2 MI S OF BUCHANAN AVE, Benton, OR

Built 1984 Load: 69.0 t ADT: 2,393

OR 99W (HWY 1W) NB

Fair

Over: Dixion Creek

020 MI S CORVALLIS, Benton, OR

Built 1942 Load: 69.0 t ADT: 8,325

Trout Creek Rd.

Fair

Over: Trout Creek

0.42 MI S, S. Mt Road, Benton, OR

Built 2014 Load: 69.0 t ADT: 40

DAWSON RD

Good

Over: MUDDY CREEK OVERFLOW

1.2 MI WEST OF HWY 99 W, Benton, OR

Built 1960 Load: 12.3 t ADT: 723

NE Belvue Rd.

Good

Over: Stewart Slough

0.1 mi S/O walnut St., Benton, OR

Built 2013 Load: 15.0 t ADT: 343

14 S 06 W 34.01:

Good

Over: SOUTH FORK ALSEA RIVER

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 1962 Load: 15.2 t ADT: 100

STOW PIT RD

Good

Over: LONG TOM RIVER

0010 MI E OF HWY 99-W, Benton, OR

Built 2000 Load: 16.2 t ADT: 269

TUM TUM RD

Good

Over: MULKEY CREEK

0052 MI S OF CR 16520, Benton, OR

Built 1956 Load: 17.2 t ADT: 75

SE KIGER ISLAND DR

Good

Over: WILLAMETTE RIVER ARM

0.5 MILES E OF HWY 99W, Benton, OR

Built 1963 Load: 17.5 t ADT: 639

OR 34 (Hwy 33)

Good

Over: Willamette River

SOUTH CORVALLIS, Benton, OR

Built 1991 Load: 17.5 t ADT: 14,763

Walnut Boulevard

Good

Over: SEQUOIA CREEK

0.01 MI N OF NW CIRCLE BL, Benton, OR

Built 2010 Load: 17.8 t ADT: 15,000

14 S 06 W 34.01:

Good

Over: SOUTH FORK ALSEA RIVER

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 1966 Load: 19.1 t ADT: 100

Oxford Circle

Good

Over: Stewart Slough

0.01 Inter Lancaster, Benton, OR

Built 2013 Load: 19.4 t ADT: 343

14 S 06 W 34.01:

Good

Over: SOUTH FORK ALSEA RIVER

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 1966 Load: 20.1 t ADT: 100

OR 99W (Hwy 91)

Good

Over: Mary's River

IN CORVALLIS, Benton, OR

Built 1991 Load: 21.4 t ADT: 2,358

13 S 07 W 21.00:

Good

Over: CROOKED CREEK

0.04 miles S of Hwy 34 (M, Benton, OR

Built 1976 Load: 21.7 t ADT: 50

14 S 06 W 34.01:

Good

Over: SOUTH FORK ALSEA RIVER

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 1966 Load: 21.7 t ADT: 150

NE GRANGER AVE

Good

Over: FRAZIER CREEK

0070 E OF PETTIBONE RD, Benton, OR

Built 1990 Load: 21.7 t ADT: 2,250

OR 99W (HWY 91)

Good

Over: Jackson Creek

004 MI N CORVALLIS, Benton, OR

Built 1919 Load: 21.9 t ADT: 13,294

STOW PIT RD

Good

Over: Creek

1.0 MI E OF HWY 99-W, Benton, OR

Built 2016 Load: 22.2 t ADT: 269

BELLFOUNTAIN RD

Good

Over: EVERGREEN CREEK

0.7 MI N OF CR25280, Benton, OR

Built 1976 Load: 23.6 t ADT: 2,571

Hwy 201

Good

Over: S. Fork Alsea Overflow

010 MI S HWY 27 JCT, Benton, OR

Built 1937 Load: 24.0 t ADT: 475

14 S 07 W 18.00:

Good

Over: SOUTH FORK ALSEA RIVER

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 1961 Load: 26.2 t ADT: 50

13 S 06 W 06.00:

Good

Over: WELLS CREEK

0.17 miles SE of Hwy 34 (, Benton, OR

Built 1984 Load: 26.9 t ADT: 50

OLD RIVER RD

Good

Over: LONG TOM RIVER

1.69MI EAST OF HWY99W, Benton, OR

Built 1962 Load: 26.9 t ADT: 312

HARRIS ROAD

Good

Over: MARYS RIVER

REPLACED BRIDGE # 14478., Benton, OR

Built 1998 Load: 27.5 t ADT: 199

MC FARLAND RD

Good

Over: MUDDY CREEK OVERFLOW

0077 MI W OF HWY 99-W, Benton, OR

Built 1975 Load: 27.9 t ADT: 144

14 S 06 W 34.01:

Good

Over: WILLIAMS CREEK

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 2006 Load: 28.5 t ADT: 100

13 S 08 W 19.02:

Good

Over: COVE CREEK

4.8 miles N of Hwy 34 (MP, Benton, OR

Built 1967 Load: 29.8 t ADT: 50

14 S 07 W 24.00:

Good

Over: PEAK CREEK

0.9 miles S of Hwy 34 (MP, Benton, OR

Built 1968 Load: 29.8 t ADT: 50

OR 99W (HWY 91)

Good

Over: Creek

1/2 MI S OF MARY'S RV, Benton, OR

Built 1992 Load: 30.5 t ADT: 19,152

BELLFOUNTAIN RD

Good

Over: N. FORK BEAVER CREEK

0.1MI SOUTH OF CR26240, Benton, OR

Built 1954 Load: 31.4 t ADT: 2,143

WILLIAM FINLEY RD

Good

Over: MUDDY CREEK

0.2 MI ENE OF HDQTRS, Benton, OR

Built 1994 Load: 32.7 t ADT: 30

REFUGE ACCESS ROAD

Good

Over: LAKE CREEK

1.5 MILE SOUTH OF PEORIA, Benton, OR

Built 1970 Load: 32.7 t ADT: 60

NE SEAVY AVE

Good

Over: STEWART SLOUGH

004 MI W OF HWY 20, Benton, OR

Built 2008 Load: 33.7 t ADT: 493

DAWSON RD

Good

Over: MUDDY CREEK

1.5 MI WEST OF HWY 99W, Benton, OR

Built 1960 Load: 34.5 t ADT: 535

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge 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.