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FM over Hog Creek

Decatur County, Iowa · rated Fair in the 2025 National Bridge Inventory

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

FM over Hog Creek in Decatur County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1955, making it 70 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 84 of the 199 inventoried bridges in Decatur County rated fair (42.2%); 78 (39.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 69 ft
Location	068242506
NBI structure number	000000000136930
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Rest Area Road over Rest Area Road	1994	13,800	Fair
SB I-35 over Grand River	1970	7,700	Fair
NB I-35 over Grand River	1970	7,550	Fair
SB I-35 over 310TH Street	1970	7,250	Fair
SB I-35 over Stream	1970	7,250	Good
NB I-35 over 310TH St	1970	7,100	Fair