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Local over Lone Grove Creek

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

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

Local over Lone Grove Creek in Guthrie County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1983, making it 42 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 104 of the 263 inventoried bridges in Guthrie County rated fair (39.5%); 94 (35.7%) 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	Prestressed concrete tee beam
Length	about 40 ft
Location	079320504
NBI structure number	000000000168091
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ia 44 over Bays Branch Creek	1981	3,460	Good
Ia 44 over Branch Mosquito Creek	1981	3,460	Fair
Ia 25 over South Raccoon River	1983	3,200	Good
Ia 44 over Brushy Creek	1972	3,200	Fair
Ia 44 over Middle Raccoon River	1972	3,200	Fair
Ia 141 over Dry Run Creek	2004	2,160	Good