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Ia 9 over Drainage Ditch

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

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

Ia 9 over Drainage Ditch 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 6 (satisfactory condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 2,320 vehicles a day (traffic count year 2022).
Its listed owner is the state 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 99 ft
Location	0.8 mi. E of E Jct SR R34
NBI structure number	000000000052481
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
Secor Ave over Winnebago River	1966	3,200	Fair
US 69 & Ia 9 over Winnebago River	1988	2,960	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