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US 20 EB over Cedar Creek

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

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

US 20 EB over Cedar Creek in Sac County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2012, making it 13 years old at the 2025 inventory.
It carries about 2,950 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 85 of the 221 inventoried bridges in Sac County rated good (38.5%); 65 (29.4%) 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 306 ft
Location	2.5 mi. E of SR N14
NBI structure number	000000000700100
Condition class	Good

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 WB over Cedar Creek	2012	2,950	Good
Ia 175 over High St	1934	2,540	Fair