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Or 55 S over S Fk Isle Dudois C

Ste. Genevieve County, Missouri · rated Fair in the 2025 National Bridge Inventory

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

Or 55 S over S Fk Isle Dudois C in Ste. Genevieve County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1970, making it 55 years old at the 2025 inventory.
It carries about 145 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 54 of the 104 inventoried bridges in Ste. Genevieve County rated fair (51.9%); 11 (10.6%) 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	Continuous steel stringer or multi-beam girder
Length	about 150 ft
Location	S 29 T 39 N R 7 E
NBI structure number	2183
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Is 55 S over Amburster CR	1970	27,080	Good
Is 55 S over Saline CR	1969	23,236	Fair
Is 55 S over Isle Dubois CR	1970	13,572	Good
Is 55 N over Isle Dubois CR	1970	13,508	Fair
Is 55 N over Isle Dubois CR	1970	13,508	Fair
Is 55 S over Fourche CR	1970	13,211	Fair