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A19 Underwood Ave over Wapsipinicon River

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

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

A19 Underwood Ave over Wapsipinicon River in Mitchell 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 9 (excellent condition) on the 0-9 scale.
It was built in 2021, making it 4 years old at the 2025 inventory.
It carries about 33 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 81 of the 167 inventoried bridges in Mitchell County rated good (48.5%); 16 (9.6%) 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

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

Bridge	Built	Vehicles/day	Condition
Ia 9 over Cedar River	1992	2,990	Good
Ia 9 over Sugar Creek	2013	2,990	Good
US 218 over Turtle Creek	1987	2,530	Good
US 218 over Stream	1986	2,530	Good
US 218 over Stream	1967	2,530	Good
US 218 over Otter Creek	1970	2,530	Fair