Home › Iowa › Mitchell County › 430TH over Creek

430TH over Creek

Mitchell County, Iowa · rated Poor in the 2025 National Bridge Inventory

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

430TH over Creek in Mitchell County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
It was built in 1953, making it 72 years old at the 2025 inventory.
It carries about 403 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 16 of the 167 inventoried bridges in Mitchell County rated poor (9.6%); 16 (9.6%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 38 ft
Location	099162301
NBI structure number	000000000248530
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Ia 9 over Cedar River	1992	2,990	Good
Ia 9 over Sugar Creek	2013	2,990	Good
US 218 over Turtle Creek	1987	2,530	Good
US 218 over Stream	1986	2,530	Good
US 218 over Stream	1967	2,530	Good
US 218 over Otter Creek	1970	2,530	Fair