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US 61 NB over Muscatine Slough

Muscatine County, Iowa · rated Good in the 2025 National Bridge Inventory

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

US 61 NB over Muscatine Slough in Muscatine County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2002, making it 23 years old at the 2025 inventory.
It carries about 3,500 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 52 of the 144 inventoried bridges in Muscatine County rated good (36.1%); 30 (20.8%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 133 ft
Location	6.7 mi. N of S Jct IA 92
NBI structure number	000000000607235
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 61 & Ia 22 over Mad Creek	1984	18,300	Good
US 61 over Hershey Ave	2008	12,100	Good
Isett Ave over Geneva Creek	1980	11,716	Fair
E 2ND St over Mad Creek	1963	8,700	Fair
Ia 38 over Mad Creek	1972	8,200	Fair
Washngton St. over Mad Creek	1986	7,906	Fair