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Rt Mm S over Grassy CR

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

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

Rt Mm S over Grassy CR in Bollinger County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1972, making it 53 years old at the 2025 inventory.
It carries about 67 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 68 of the 124 inventoried bridges in Bollinger County rated fair (54.8%); 17 (13.7%) 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 124 ft
Location	S 19 T 30 N R 8 E
NBI structure number	2447
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Mo 34 E over Crooked CR	1973	10,096	Fair
Mo 34 E over Hurricane CR	1975	4,204	Fair
Mo 34 E over Hog CR	1940	3,649	Fair
Mo 72 E over Lit Muddy CR	1992	2,649	Fair
Mo 34 E over Drunken CR	1922	2,274	Fair
Mo 51 S over Opossum CR	1992	2,248	Fair