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Bridge conditions in Marion County, Oregon

375 inventoried bridges · 29 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

The federal inventory lists 375 bridges in Marion County: 84 rated good, 262 fair, and 29 poor.

29 of the 375 bridges in Marion County, Oregon, are rated in poor condition (7.7%) in the 2025 National Bridge Inventory, as of August 20, 2026.
84 bridges (22.4%) are rated good and 262 (69.9%) fair.
The median Marion County bridge was built in 1969.
The busiest poor-rated bridge is Wilco Road over Salem Ditch (built 1968), carrying about 10,640 vehicles a day.

Good 22.4% · Fair 69.9% · Poor 7.7% of 375 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
Wilco Road over Salem Ditch	1968	10,640	Poor
W Wash St over Salem Ditch	1975	6,466	Poor
Or 213 (hwy 160) over Abiqua Creek	1934	6,347	Poor
Rambler Dr SE over Little Pudding River	1963	5,800	Poor
West Stayton Rd over Mill Creek	1966	3,417	Poor
Marion Rd. SE over Sidney Ditch	1962	3,245	Poor
Whiskey Hill Rd over Overflow Pudding River	1955	3,061	Poor
Monitor-mckee Rd over Pudding River	1950	2,663	Poor
Hwy 140 (or 219) over West Champoeg Creek	1958	2,042	Poor
Dominic Road over Zollner Creek	1961	1,696	Poor
Broadacres Rd over Case Creek	1963	1,567	Poor
St. Paul Hwy over Case Creek	1966	1,454	Poor
Champoeg Rd over Champoeg Creek	1955	1,208	Poor
North Fork Rd over Little N. Santiam	1960	1,124	Poor
State Street over Pudding River	1956	1,026	Poor
Sherman Road over Beaver Creek	1960	967	Poor
Windsor Island Rd over Overflow Channel	1958	821	Poor
Hibbard Rd over Drift Creek	1964	725	Poor
Waypark Drive over Pudding R. Overflow	1961	556	Poor
Fellers Rd over Senecal Creek	1971	556	Poor
Wintel Rd over Sidney Ditch	1960	456	Poor
East Water St over Main Stayton Canal	1973	430	Poor
Hibbard Rd over Beaver Creek	1964	417	Poor
Gallon House over Abiqua Creek	1916	327	Poor
75TH Pl SE over Mill Creek	1968	223	Poor
75TH Ave NE over Labish Ditch	1963	142	Poor
Rosebud Ln over Sidney Ditch	1969	139	Poor
Anderson Rd over Beaver Creek	1955	110	Poor
Vaughn Rd over Doty Creek	1973	43	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
Chemawa Road over I-5 (Hwy 1)	1975	102,351	Fair
Chemawa Road over UPRR & Indian School Rd	1983	102,351	Fair
Chemawa Rd over Ulali Drive	2006	102,351	Fair
I-5 (Hwy 1) over State Street	2000	101,907	Fair
I-5 (Hwy 1) over Mill Creek Oflow	2008	101,907	Fair
I-5 (Hwy 1) over Mill Creek Oflow	2007	101,907	Good
D Street over Hwy 1 (I-5)	1993	101,583	Good
Center Street over Hwy 1 (I-5)	1993	101,583	Good
I-5 (Hwy 1) over Sunnyview Rd.	1996	101,583	Fair
I-5 (Hwy 1) over Market Street	1996	101,583	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Oregon: Oregon bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.