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FM over Shell Rock River

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

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

FM over Shell Rock River in Bremer 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 1994, making it 31 years old at the 2025 inventory.
It carries about 88 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 139 of the 267 inventoried bridges in Bremer County rated good (52.1%); 32 (12.0%) 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 474 ft
Location	091142805
NBI structure number	000000000079111
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 218 over Drainage Ditch	2012	18,700	Good
Ia 116 over Dry Run Creek	2015	14,800	Good
US 218 over Drainage Ditch	2001	10,900	Good
SB US 218 over Cedar River	1993	9,700	Fair
US 218 over Trib to Shell Rock River	1996	9,700	Good
NB US 218 over Cedar River	1993	9,500	Fair