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2100TH St over Small Stream

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

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

2100TH St over Small Stream in Shelby County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 2020, making it 5 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 111 of the 207 inventoried bridges in Shelby County rated fair (53.6%); 18 (8.7%) 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	Steel stringer or multi-beam girder
Length	about 75 ft
Location	2100th West of M-16
NBI structure number	000000000307782
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 59 over Drainage Ditch	1966	5,000	Fair
US 59 over Drainage Ditch	1970	4,940	Fair
US 59 over West Nishnabotna River	1970	4,940	Fair
US 59 over Jensen Creek	1968	4,680	Fair
Ia 44 over West Nishnabotna River	1978	3,960	Fair
US 59 over Lyon Creek	1970	3,240	Fair