Home › Kansas › Thomas County › County Rd 21 over South Fork Saline Rive

County Rd 21 over South Fork Saline River

Thomas County, Kansas · rated Poor in the 2025 National Bridge Inventory

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

County Rd 21 over South Fork Saline River in Thomas County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1930, making it 95 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 2 of the 82 inventoried bridges in Thomas County rated poor (2.4%); 2 (2.4%) 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	Continuous steel stringer or multi-beam girder
Length	about 31 ft
Location	8.4S 3.0W of Mingo
NBI structure number	000970425004164
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
K25 Hwy over Prairie Dog Creek Drg	1965	7,096	Fair
US24 Hwy over Prairie Dog Creek Drg	1938	6,605	Good
I70 Hwy Wl-el over S Fork Solomon River	1966	6,400	Poor
I-70 Highway over N Fork Solomon River	1965	6,350	Good
I-70 Hwy Westbound over Union Pacific Railroad	1965	6,350	Good
I-70 Hwy Eastbound over Union Pacific Railroad	1965	6,350	Good