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Colburn Rd over Small CR

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

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

Colburn Rd over Small CR in Jackson 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 1987, making it 38 years old at the 2025 inventory.
It carries about 3,590 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 507 of the 930 inventoried bridges in Jackson County rated fair (54.5%); 53 (5.7%) 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	Prestressed concrete tee beam
Length	about 90 ft
Location	S 28 T 48 N R 30 W
NBI structure number	20294
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Is 35 S over Cst W 20TH St Cst Ave	1946	147,773	Fair
Is 29 S over Rp Front St E to IS29N	2009	108,151	Good
Is 29 S over Cst Guinotte Ave Cst	1953	108,151	Fair
Is 70 E over E Fk Lit Blue Rvr	1988	104,782	Fair
Rt W E over Br Blue Rvr	1969	104,024	Poor
Adams Diary St over Creek	2004	100,000	Fair