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Rim Rock Trail over Big Rock CR

Worth County, Missouri · rated Poor in the 2025 National Bridge Inventory

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

Rim Rock Trail over Big Rock CR in Worth County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1920, making it 105 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 15 of the 81 inventoried bridges in Worth County rated poor (18.5%); 15 (18.5%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 35 ft
Location	S 19 T 65 N R 30 W
NBI structure number	17829
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Mo 46 E over Marlowe Br	1939	1,159	Poor
Mo 46 E over E Fk Grand Rvr	1984	1,085	Fair
Mo 46 E over Br	1928	1,085	Fair
US 169 S over Mid Fk Grand Rvr	1960	913	Poor
Mo 46 E over Mid Fk Grand Rvr	1984	866	Fair
Mo 46 E over W Fk Grand Rvr	2017	832	Good