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FM over S Fork Maquoketa River

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

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

FM over S Fork Maquoketa River in Jackson County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1987, making it 38 years old at the 2025 inventory.
It carries about 230 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 138 of the 252 inventoried bridges in Jackson County rated fair (54.8%); 36 (14.3%) 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 375 ft
Location	084e10304
NBI structure number	000000000193251
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 61 over Drainage Ditch	1967	8,100	Good
Y53 200TH Ave over Prairie Creek	2022	7,205	Good
US 61 NB over S Fork Maquoketa River	1967	5,100	Fair
US 61 SB over S Fork Maquoket River	1998	5,100	Fair
NB US 61 over Prairie Creek	1967	4,600	Fair
SB US 61 over Prairie Creek	1996	4,600	Good