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SW501 over Marshall CR

Henry County, Missouri · rated Fair in the 2025 National Bridge Inventory

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

SW501 over Marshall CR in Henry County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1991, making it 34 years old at the 2025 inventory.
It carries about 35 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 151 of the 265 inventoried bridges in Henry County rated fair (57.0%); 32 (12.1%) 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 140 ft
Location	S 25 T 40 N R 27 W
NBI structure number	24374
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Mo 7 S over Town CR	1962	17,970	Poor
Mo 7 S over Rose CR	1932	17,068	Fair
Mo 7 S over Mo 52 Katy Trail	1962	16,819	Fair
Mo 7 S over Black Oak CR	1932	16,029	Fair
Mo 7 S over Brushy CR	1932	16,029	Fair
Mo 7 S over Cherry CR	1932	16,029	Fair