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Ia 9 over Brown Creek

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

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

Ia 9 over Brown Creek in Emmet County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1986, making it 39 years old at the 2025 inventory.
It carries about 2,740 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 18 of the 78 inventoried bridges in Emmet County rated good (23.1%); 15 (19.2%) are rated poor.
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


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 79 ft
Location	1.8 mi E of Jct IA 4
NBI structure number	000000000024311
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Ia 9 over Des Moines River	1975	8,200	Fair
Ia 4 over West Fk Des Moines River	1981	2,960	Good
Ia 4 over Drainage Ditch	1984	2,050	Good
Ia 9 over E Fork Des Moines River	1986	1,930	Fair
Ia 4 over Drainage Ditch #2	2019	1,740	Good
Ia 4 over Drainage Ditch #94	2019	1,740	Good