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County Rd 306 over Branch of Johnson

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

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

County Rd 306 over Branch of Johnson in Livingston 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 1940 and reconstructed in 1988, making it 85 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 97 of the 185 inventoried bridges in Livingston County rated fair (52.4%); 18 (9.7%) 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	Steel stringer or multi-beam girder
Length	about 29 ft
Location	S 1 T 56 N R 23 W
NBI structure number	23686
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 65 S over Crbm RR	1986	19,592	Fair
US 36 E over Grand Rvr Trib	2002	9,571	Fair
US 36 E over Medicine CR	1995	7,636	Fair
US 36 E over Muddy CR Drain Dtc	1965	7,636	Fair
US 36 E over Drain Dtch	1925	7,636	Fair
US 36 E over Leeper CR	1965	7,636	Fair