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Dodge Island Rd over Dodge Island Slough

Benton County, Oregon · rated Poor in the 2025 National Bridge Inventory

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

Dodge Island Rd over Dodge Island Slough in Benton County, Oregon, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
It was built in 1963, making it 62 years old at the 2025 inventory.
It carries about 177 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 20 of the 190 inventoried bridges in Benton County rated poor (10.5%); 20 (10.5%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Timber stringer or multi-beam girder
Length	about 119 ft
Location	0010 Mi E of Old River Rd
NBI structure number	14186 000 00010
Condition class	Poor

Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.

Bridge	Built	Vehicles/day	Condition
OR 99W (Hwy 91) SB over Marys River	1949	23,359	Fair
US 20 (Hwy 33) over Wprr	1960	22,606	Fair
OR 34 (Hwy 33) over Willamette River	1991	22,606	Good
Or 34 (hwy 33) over 3rd & 4th Streets	1992	22,606	Good
US 20 (Hwy 33) over Oak Creek	1960	22,169	Fair
NW 9TH St over Dixon CR	1985	20,182	Fair