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Mo 364 W over Cst Hanley Rd

St. Charles County, Missouri · rated Good in the 2025 National Bridge Inventory

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

Mo 364 W over Cst Hanley Rd in St. Charles County, Missouri, 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 2013, making it 12 years old at the 2025 inventory.
It carries about 22,848 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 138 of the 419 inventoried bridges in St. Charles County rated good (32.9%); 12 (2.9%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 75 ft
Location	S 1 T 46 N R 2 E
NBI structure number	34517
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Is 70 E over Sandford CR	1953	122,262	Fair
Is 70 E over Cole CR	1953	109,398	Fair
Is 70 E over Belleau CR	1955	108,528	Fair
Is 70 E over Rt K Co OR70W to OR70E	1955	107,979	Fair
Is 70 E over Gilmore Br	1950	87,827	Fair
Is 70 W over Cst S 5TH St	1977	84,031	Fair