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Ia 15 over Beaver Creek

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

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

Ia 15 over Beaver Creek in Pocahontas 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 6 (satisfactory condition) on the 0-9 scale.
It was built in 1957 and reconstructed in 2010, making it 68 years old at the 2025 inventory.
It carries about 250 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 107 of the 198 inventoried bridges in Pocahontas County rated fair (54.0%); 50 (25.3%) 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 stringer or multi-beam girder
Length	about 112 ft
Location	2.9 mi. S of SR C15
NBI structure number	000000000040320
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ia 4 over Lizard Creek	1968	3,750	Good
Ia 3 over Lizard Creek	1968	3,670	Fair
Ia 4 over North Lizard Creek	1976	3,150	Good
Ia 4 over North Lizard Creek	1976	3,150	Fair
Ia 4 over Drainage Ditch	1991	2,420	Fair
Ia 3 over Drainage Ditch 53	1984	2,390	Good