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SE 40 E over Is 29

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

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

SE 40 E over Is 29 in Buchanan County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1958, making it 67 years old at the 2025 inventory.
It carries about 190 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 149 of the 246 inventoried bridges in Buchanan County rated fair (60.6%); 19 (7.7%) 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 240 ft
Location	S 23 T 56 N R 35 W
NBI structure number	57
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Is 29 S over Bee CR Br	1958	35,463	Fair
6TH St-us 59 over BNSF RR	1983	23,450	Fair
Is 29 S over US 36	1958	21,784	Fair
Is 29 N over US 36	1958	20,343	Fair
Is 29 N over Cst Easton Rd Abandoned	1958	20,343	Fair
US 36 E over US 169	1961	20,169	Fair