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Rt Nn S over Drain Dtch No 78

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

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

Rt Nn S over Drain Dtch No 78 in Dunklin 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 2001, making it 24 years old at the 2025 inventory.
It carries about 2,170 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 105 of the 217 inventoried bridges in Dunklin County rated fair (48.4%); 18 (8.3%) 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 prestressed concrete stringer or multi-beam girder
Length	about 235 ft
Location	S 22 T 18 N R 10 E
NBI structure number	12033
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Mo 84 E over Buffalo Dtch	1922	12,954	Fair
US 412 E over Buffalo Drain Dtch	1948	9,424	Fair
US 412 E over St Francis Rvr	2002	7,687	Fair
US 412 E over Red Devil Dtch	1968	7,608	Good
US 412 E over Kinnemore Dtch	1968	6,988	Good
US 412 E over Pole Cat Slu	1963	6,473	Fair