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Secor Ave over Winnebago River

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

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

Secor Ave over Winnebago River in Winnebago 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 1966, making it 59 years old at the 2025 inventory.
It carries about 3,200 vehicles a day (traffic count year 2022).
Its listed owner is a city or municipal highway agency.
It is one of 20 of the 54 inventoried bridges in Winnebago County rated fair (37.0%); 16 (29.6%) 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 143 ft
Location	098243602
NBI structure number	000000000004940
Condition class	Fair

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
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
US 69 over Pike Run Creek	1968	1,650	Fair