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US 169 over UP RR

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

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

US 169 over UP RR in Boone 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 1984, making it 41 years old at the 2025 inventory.
It carries about 1,890 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 58 of the 134 inventoried bridges in Boone County rated fair (43.3%); 38 (28.4%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 179 ft
Location	0.2 Mile N of N Jct US 30
NBI structure number	000000000015271
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 30 over Noah Creek	1962	8,800	Fair
US 30 over Honey Creek	1962	8,800	Fair
US 30 & 169 over East Beaver Creek	1962	5,900	Good
Ia 17 over Big Creek	1961	5,300	Fair
Ia 17 over US 30	1968	4,960	Fair
US 30 EB over Des Moines River	1963	4,400	Fair