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160TH Ave over Pike Run

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

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

160TH Ave over Pike Run in Winnebago County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2022, making it 3 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 18 of the 54 inventoried bridges in Winnebago County rated good (33.3%); 16 (29.6%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	9	9	Excellent condition


Structure	Aluminum or iron culvert
Length	about 21 ft
Location	099241402
NBI structure number	000000000344971
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	March 2023
Inspection interval (item 91)	24 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
US 69 over Winnebago River	1988	5,400	Fair
Secor Ave over Winnebago River	1966	3,200	Fair
US 69 & Ia 9 over Winnebago River	1988	2,960	Fair
Ia 9 over Drainage Ditch	1975	2,320	Fair
US 69 over Lime Creek	1931	1,970	Fair
J St over Winnebago River	1974	1,884	Fair