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12TH St over K-18 over K-18 Wb/eb

Riley County, Kansas · rated Good in the 2025 National Bridge Inventory

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

12TH St over K-18 over K-18 Wb/eb in Riley County, Kansas, 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 2011, making it 14 years old at the 2025 inventory.
It carries about 55 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 128 of the 225 inventoried bridges in Riley County rated good (56.9%); 10 (4.4%) 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	Continuous steel stringer or multi-beam girder
Length	about 292 ft
Location	12TH Street over K-18
NBI structure number	999901800810641
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
K-113 Hwy over Wildcat Creek	1993	22,777	Good
K113 Hwy over Anderson Ave	1968	16,683	Good
Kimball Ave over Drainage Ditch	2021	11,780	Good
K-18 over Wildcat Creek	2021	11,589	Good
K-18 Hwy WB over K-113 Hwy	2007	11,539	Good
K-18 Hwy EB over K-113 Hwy	2004	11,539	Good