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RS 643 E 50th N over at & Sf Railroad

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

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

RS 643 E 50th N over at & Sf Railroad in Sumner County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1967, making it 58 years old at the 2025 inventory.
It carries about 135 vehicles a day (traffic count year 2013).
Its listed owner is the county highway agency.
It is one of 16 of the 658 inventoried bridges in Sumner County rated poor (2.4%); 16 (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 203 ft
Location	3.0S 2.4E of Riverdale
NBI structure number	000000000960425
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I-35 Hwy SB (kta) over K-53 Hwy	1956	12,849	Good
I-35 Hwy NB (kta) over K-53 Hwy	1956	12,849	Good
U-160 Hwy over Hargis Creek	2024	11,788	Good
I-35 Hwy SB (kta) over BNSF Railway	1956	11,227	Fair
I-35 Hwy NB (kta) over BNSF Railway	1956	11,227	Fair
I-35 Hwy SB (kta) over Ninnescah River	1956	11,227	Fair