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Local over Drainage

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

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

Local over Drainage in Iowa County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1976, making it 49 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 104 of the 239 inventoried bridges in Iowa County rated fair (43.5%); 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 2021, on a 48-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	6	6	Satisfactory condition


Structure	Continuous concrete culvert
Length	about 40 ft
Location	081090702
NBI structure number	000000000191021
Condition class	Fair
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	March 2021
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