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FM over Middle Racoon River

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

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

FM over Middle Racoon River in Carroll County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
It was built in 1971, making it 54 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 120 of the 249 inventoried bridges in Carroll County rated good (48.2%); 17 (6.8%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated September 2023, on a 24-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	8	8	Very good condition


Structure	Concrete culvert
Length	about 20 ft
Location	085362601
NBI structure number	000000000096581
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	September 2023
Inspection interval (item 91)	24 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
US 30 over Ditch #77	1919	13,000	Fair
US 30 over Storm Creek	1955	7,300	Fair
US 30 over over UP RR	1982	6,800	Fair
US 30 over Middle Raccoon River	1982	6,000	Fair
US 71 over UP RR & Rd	1988	5,600	Fair
US 71 over Stream	2000	5,600	Good