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Aiken Switch Road over Vermillion River

Pottawatomie County, Kansas · rated Fair in the 2025 National Bridge Inventory

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

Aiken Switch Road over Vermillion River in Pottawatomie County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 155 vehicles a day (traffic count year 2013).
Its listed owner is the county highway agency.
It is one of 131 of the 297 inventoried bridges in Pottawatomie County rated fair (44.1%); 19 (6.4%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous prestressed concrete tee beam
Length	about 206 ft
Location	6.0S of Onaga
NBI structure number	000000000750560
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US24 Hwy WB over Big Blue River	1960	12,937	Good
US-24 Hwy EB over Big Blue River	1991	12,937	Good
US24 Hwy over College Creek	2015	7,877	Good
US24 Hwy over Sand Creek	1950	6,515	Good
US24 Hwy over Kansas River Drainage	1950	6,515	Good
Green Valley Road over Trib. to Big Blue River	1984	6,314	Fair