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FM over Creek

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

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

FM over Creek in Audubon 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 4 (poor condition) on the 0-9 scale.
It was built in 1920 and reconstructed in 1993, making it 105 years old at the 2025 inventory.
It carries about 60 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 37 of the 204 inventoried bridges in Audubon County rated poor (18.1%); 37 (18.1%) 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	Timber stringer or multi-beam girder
Length	about 82 ft
Location	078343004
NBI structure number	000000000066560
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US 71 over Stream	1983	3,700	Good
US 71 over Bluegrass Creek	2006	3,080	Good
US 71 over East Nishnabotna River	1959	2,470	Fair
US 71 over Stream	1923	2,380	Fair
US 71 over Stream	1961	2,380	Fair
US 71 over Stream	1961	2,380	Fair