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FM over Hog Run

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

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

FM over Hog Run in Iowa 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 1999, making it 26 years old at the 2025 inventory.
It carries about 2,760 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 90 of the 239 inventoried bridges in Iowa County rated good (37.7%); 45 (18.8%) 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 March 2022, on a 48-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
Deck	7	7	Good condition
Superstructure	7	7	Good condition
Substructure	8	8	Very good condition


Structure	Continuous concrete slab
Length	about 75 ft
Location	079100704
NBI structure number	000000000189321
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	March 2022
Inspection interval (item 91)	48 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
I-80 over Clear Creek	1963	33,800	Good
I 80 over Stream	1963	33,000	Fair
I-80 over No Name Creek	1963	31,400	Fair
I-80 over Stream	1962	30,300	Fair
I-80 over Old Mans Creek	1962	30,100	Fair
I-80 over Stream	1961	29,700	Good