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Is 49 N over Mna RR

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

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

Is 49 N over Mna RR in Vernon 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 1975, making it 50 years old at the 2025 inventory.
It carries about 7,738 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 242 of the 404 inventoried bridges in Vernon County rated fair (59.9%); 15 (3.7%) 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 189 ft
Location	S 14 T 35 N R 31 W
NBI structure number	2431
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Is 49 S over Dry CR	1977	14,957	Fair
US 54 E over Cst Underpass St Mna RR	1963	14,820	Fair
Is 49 S over Lp 49	1969	9,382	Fair
Is 49 S over Mna RR	1969	9,382	Fair
Is 49 S over US 54 Mna RR	1969	9,382	Poor
Is 49 N over Mna RR	1969	8,111	Fair