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Rt J S over Big Grassy CR

Lewis County, Missouri · rated Good in the 2025 National Bridge Inventory

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

Rt J S over Big Grassy CR in Lewis County, Missouri, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2022, making it 3 years old at the 2025 inventory.
It carries about 257 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 46 of the 172 inventoried bridges in Lewis County rated good (26.7%); 10 (5.8%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 108 ft
Location	S 29 T 61 N R 8 W
NBI structure number	36673
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 61 S over Big Br CR	1999	14,279	Fair
US 61 S over Bland Br Ck	2005	14,279	Fair
US 61 S over Unnamed CR	2005	14,279	Fair
US 61 S over Unnamed CR	2005	14,279	Fair
US 61 S over Artesian Br CR	2005	7,886	Fair
US 61 N over Waconda Rvr	2001	7,505	Good