Home › Oregon › Benton County › SE Kiger Island Dr over Willamette River

SE Kiger Island Dr over Willamette River Arm

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

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

SE Kiger Island Dr over Willamette River Arm in Benton County, Oregon, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1963, making it 62 years old at the 2025 inventory.
It carries about 639 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 50 of the 190 inventoried bridges in Benton County rated good (26.3%); 20 (10.5%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 443 ft
Location	0.5 Miles E of Hwy 99W
NBI structure number	14444 253 00050
Condition class	Good

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