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Ia 31 over Stratton Creek

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

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

Ia 31 over Stratton Creek in Cherokee County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1922 and reconstructed in 1950, making it 103 years old at the 2025 inventory.
It carries about 1,330 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 90 of the 244 inventoried bridges in Cherokee County rated fair (36.9%); 68 (27.9%) 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	Steel stringer or multi-beam girder
Length	about 43 ft
Location	0.1 mi. N of SR C66
NBI structure number	000000000019490
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 59 over Railroad Creek	1973	7,200	Fair
US 59 over Westcott Pk Loop	1972	4,510	Fair
US 59 over Little Sioux River	1973	4,510	Fair
W Bluff St over Railroad Creek	1961	3,529	Poor
Ia 3 over Fork Little Sioux River	1979	3,410	Fair
Ia 3 over Maple River	1985	3,270	Fair