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Walnut Avenue over E Fork E Nodaway River

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

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

Walnut Avenue over E Fork E Nodaway River in Adams 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 5 (fair condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 71 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 77 of the 185 inventoried bridges in Adams County rated fair (41.6%); 85 (45.9%) 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 61 ft
Location	073322604
NBI structure number	000000000060471
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ia 148 over East Nodaway River	1976	3,580	Fair
Ia 148 over over BNSF RR	1976	3,580	Good
US 34 over E Nodaway River & BNSF R	1964	2,970	Fair
US 34 over Metz Creek	1921	2,390	Fair
US 34 over Platte River	2014	2,390	Good
US 34 over Kemp Creek	1964	2,240	Fair