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NW Polk Rd over Trib Third Fk Plat

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

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

NW Polk Rd over Trib Third Fk Plat in DeKalb County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 35 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 16 of the 238 inventoried bridges in DeKalb County rated poor (6.7%); 16 (6.7%) 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 21 ft
Location	S 26 T 60 N R 33 W
NBI structure number	12685
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Is 35 S over Brushy CR	1964	19,244	Fair
US 36 E over Freeman Br	1962	11,148	Fair
US 36 E over Jordon CR	1962	11,148	Fair
US 69 S over US 36	1990	9,126	Fair
US 36 W over Is 35	1963	7,793	Good
US 36 E over Is 35	1963	6,359	Good