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US 59 over Grey Creek

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

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

US 59 over Grey Creek in Cherokee County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1985, making it 40 years old at the 2025 inventory.
It carries about 2,070 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 86 of the 244 inventoried bridges in Cherokee County rated good (35.2%); 68 (27.9%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 133 ft
Location	0.7 mi. S of Jct. SR C16
NBI structure number	000000000019391
Condition class	Good

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