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FM over Raccoon River

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

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

FM over Raccoon River in Sac County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1974, making it 51 years old at the 2025 inventory.
It carries about 110 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 65 of the 221 inventoried bridges in Sac County rated poor (29.4%); 65 (29.4%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 246 ft
Location	087361301
NBI structure number	000000000299991
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US 20 over Unnamed Stream	2017	4,850	Good
E Main St over Raccoon River	2004	3,853	Good
US 20 EB US 71 SB over North Raccoon River	2012	3,300	Good
US 20 WB US 71 NB over North Raccoon River	2012	3,300	Good
US 20 EB over Cedar Creek	2012	2,950	Good
US 20 WB over Cedar Creek	2012	2,950	Good