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)

Sort:

US 20 (HWY 31) EB

Over: Willamette River

IN ALBANY, Benton, OR

Built 1925 ADT: 15,600

US 20 (HWY 33)

Over: Harris Road & WPRR

05.0 MI W OF PHILOMATH, Benton, OR

Built 1927 ADT: 6,600

OR 99W (Hwy 91) SB

Over: Marys River

IN CORVALLIS, Benton, OR

Built 1949 ADT: 10

OR 99W (HWY 91)

Over: WPRR

007 MI S CORVALLIS, Benton, OR

Built 1954 ADT: 10

US 20 (Hwy 33) EB

Over: Hwy 91 SB

AT JCT OF HWY 1W, Benton, OR

Built 1960 ADT: 8,638

OR 34 (Hwy 210) WB

Over: Willamette River

ON LINN BENTON CO LN, Benton, OR

Built 1964 ADT: 12,300

US 20 (HWY 31) WB

Over: Willamette River

IN ALBANY, Benton, OR

Built 1971 ADT: 5,316

OR 34 (HWY 33)

Over: 3rd & 4th Streets

IN CORVALLIS, Benton, OR

Built 1992 ADT: 8,638

OR 34 (Hwy 33) Con

Over: SW 3rd Street

SOUTH CORVALLIS, Benton, OR

Built 1991 ADT: 8,638

HWY 210 EB

Over: Willamette River

001 E HWY 31 & 210 JCT, Benton, OR

Built 2023 ADT: 9,913

IRISH BEND RD

Over: WILLAMETTE RIVER O'FLOW

0.95 MI E OF OLD RIVER RD, Benton, OR

Built 1963 Load: 8.4 t ADT: 78

TAMPICO ROAD

Over: BERRY CREEK

0028 MI S OF POLK CO, Benton, OR

Built 1959 Load: 10.7 t ADT: 102

BUNDY RD

Over: STEAMBOAT CHANNEL

0098 MI S OF EUREKA RD, Benton, OR

Built 1962 Load: 10.7 t ADT: 208

SMITH LOOP

Over: SLOUGH

0071 MI E OF HWY 99-W, Benton, OR

Built 1963 Load: 10.7 t ADT: 224

SAXTON RD

Over: BEAVER CREEK

0017 MI E OF BEAVER CR RD, Benton, OR

Built 1963 Load: 11.0 t ADT: 23

PREACHER CR RD

Over: LOBSTER CREEK

0024 MI S OF CR 58150, Benton, OR

Built 1957 Load: 11.0 t ADT: 112

MC FARLAND RD

Over: MUDDY CREEK

0049 MI W OF HWY 99-W, Benton, OR

Built 1963 Load: 11.0 t ADT: 107

NE ELLIOTT CIRCLE

Over: SMALL CREEK

0009 MI N OF GRANGER RD, Benton, OR

Built 1956 Load: 11.0 t ADT: 65

OR 99W (HWY 91)

Over: Long Tom River

IN MONROE, Benton, OR

Built 1954 Load: 11.7 t ADT: 4,840

HARRIS ROAD

Over: MARYS RIVER

0251 MI W OF WREN, Benton, OR

Built 1929 Load: 12.3 t ADT: 84

BEAVER CREEK RD

Over: BEAVER CREEK

0204 MI S OF DECKER RD, Benton, OR

Built 1962 Load: 13.0 t ADT: 269

SW WESTERN BLVD

Over: OAK CR

W OF SW 26TH ST, Benton, OR

Built 1925 Load: 14.9 t ADT: 9,000

DAWSON RD

Over: OLIVER CREEK

DAWSON, Benton, OR

Built 1958 Load: 14.9 t ADT: 603

E INGRAM ISLAND RD

Over: INGRAM SLOUGH

0094 MI E OF OLD RIVER RD, Benton, OR

Built 1963 Load: 14.9 t ADT: 469

PRICE CREEK RD

Over: PRICE CREEK

0055 MI W OF 06541, Benton, OR

Built 2009 Load: 14.9 t ADT: 91

NW 9TH STREET

Over: SEQUOIA CREEK

00.1 MI N OF NW CIRCLE BL, Benton, OR

Built 1940 Load: 15.1 t ADT: 19,662

DECKER RD

Over: GREASEY CREEK

0.48 MILES E OF HWY 34, Benton, OR

Built 1961 Load: 15.2 t ADT: 321

Harris Rd.

Over: Marys River

Harris Rd, Benton, OR

Built 1939 Load: 15.2 t ADT: 75

OR 34 (Hwy 27)

Over: N. Fork Alsea River

032 MI E ALSEA, Benton, OR

Built 1927 Load: 15.6 t ADT: 1,317

US 20 (Hwy 33)

Over: WPRR

003 MI W OF HWY 1W JCT, Benton, OR

Built 1960 Load: 15.6 t ADT: 14,763

E INGRAM ISLAND PL

Over: WILLAMETTE R. OVERFLOW

0002 MI E OF CR 45141 N., Benton, OR

Built 1965 Load: 16.2 t ADT: 53

WOODS CR RD

Over: WOODS CREEK

0.01 MILES S OF HWY 20, Benton, OR

Built 1978 Load: 16.5 t ADT: 563

HWY 31

Over: Bowers Slough

062 MI E CORVALLIS, Benton, OR

Built 1964 Load: 16.8 t ADT: 14,891

Hwy 201

Over: South Fork Alsea River

011 MI SW ALSEA, Benton, OR

Built 1934 Load: 16.8 t ADT: 475

OR 34 (Hwy 27)

Over: Marys River

002 MI W HWY 33 JCT, Benton, OR

Built 1949 Load: 17.2 t ADT: 3,166

SW 15TH ST

Over: MARY'S RIVER

S OF HWY 20-34, Benton, OR

Built 1953 Load: 17.2 t ADT: 3,800

OR 99W (Hwy 91) NB

Over: Marys River

IN CORVALLIS, Benton, OR

Built 1933 Load: 17.5 t ADT: 10,568

Hwy 201

Over: N. Fork Alsea River

010 MI S HWY 27 JCT, Benton, OR

Built 1937 Load: 17.8 t ADT: 611

BRUCE RD

Over: MUDDY CREEK

0092 MI W OF HWY 99-W, Benton, OR

Built 1972 Load: 18.8 t ADT: 112

HONEY GROVE RD

Over: NO. FK. ALSEA RIVER

0018 MI E OF ALSEA HWY, Benton, OR

Built 1963 Load: 19.0 t ADT: 129

TUM TUM RD

Over: TUM TUM RIVER

004 S OF BLODGETT RD, Benton, OR

Built 1955 Load: 19.1 t ADT: 193

MARYS RIVER ROAD

Over: WEST FORK MARY'S RIVER

0054 MI N OF CR 07560, Benton, OR

Built 1963 Load: 19.1 t ADT: 123

SW 53RD ST

Over: MARYS RIVER

014 S OF CR 25463, Benton, OR

Built 1965 Load: 19.2 t ADT: 321

LOBSTER VALLEY RD

Over: LITTLE LOBSTER CREEK

0534 MI NW OF HWY 201, Benton, OR

Built 1957 Load: 19.4 t ADT: 180

LLEWELLYN RD

Over: MUDDY CREEK OVERFLOW

0239 MI W OF HWY 99-W, Benton, OR

Built 1959 Load: 19.4 t ADT: 437

NW CIRCLE BLVD.

Over: DIXON CREEK

W OF NW 23RD, Benton, OR

Built 1996 Load: 19.5 t ADT: 8,322

NW 5TH ST.

Over: DIXON CR

S OF BUCHANAN, Benton, OR

Built 1972 Load: 19.5 t ADT: 7,178

SMITH LOOP

Over: SLOUGH

0100 MI E OF HWY 99-W, Benton, OR

Built 1956 Load: 19.8 t ADT: 182

HOSKINS RD

Over: WEST FORK MARY'S RIVER

002 MI E OF 07055, Benton, OR

Built 2011 Load: 20.1 t ADT: 102

WALNUT BLVD

Over: OAK CREEK

00.83 MI W OF CORVALLIS, Benton, OR

Built 1968 Load: 20.2 t ADT: 10,715

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

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Compiled by PlainBridges, Independent data publisher

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.