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FM over Upper Iowa River

Allamakee County, Iowa · rated Fair in the 2025 National Bridge Inventory

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

FM over Upper Iowa River in Allamakee County, Iowa, 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 1974, making it 51 years old at the 2025 inventory.
It carries about 69 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 114 of the 197 inventoried bridges in Allamakee County rated fair (57.9%); 21 (10.7%) 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 316 ft
Location	099060806
NBI structure number	000000000062885
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ia 9 over Stream	1967	3,670	Fair
Ia 51 over Hecher Creek	1967	2,690	Good
Ia 51 over Yellow River	1967	2,690	Good
Front St over Clear Creek	1985	2,418	Good
Ia 76 over Yellow River	1980	2,370	Fair
Ia 76 over Drainage Ditch	1996	2,370	Good