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20TH Rd (19.0-a.2) over Murdock Creek

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

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

20TH Rd (19.0-a.2) over Murdock Creek in Marshall County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 10 vehicles a day (traffic count year 2007).
Its listed owner is the county highway agency.
It is one of 159 of the 403 inventoried bridges in Marshall County rated fair (39.5%); 42 (10.4%) 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	Prestressed concrete tee beam
Length	about 41 ft
Location	5.0W of Summerfield
NBI structure number	000580915003002
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
U36 Hwy over Bigblueriv&uprr&localrd	2004	5,184	Good
US36 Hwy over Spring Creek Drainage	1957	3,333	Good
US-36 Hwy over Spring Creek	1993	3,333	Good
US36 Hwy over N F Blk Vermillion R Drn	1958	3,045	Good
US 36 Hwy over Robidoux Creek	1990	2,986	Good
US36 Hwy over N F Blk Vermillion R Drn	1958	2,608	Fair