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FM over Otter Creek

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

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

FM over Otter Creek in Clarke 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 5 (fair condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 26 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 66 of the 168 inventoried bridges in Clarke County rated fair (39.3%); 54 (32.1%) 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	Timber stringer or multi-beam girder
Length	about 32 ft
Location	072250302
NBI structure number	000000000114531
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-35 over Drainage Ditch	1957	18,600	Fair
I 35 SB over South West Creek	2013	9,550	Fair
I 35 SB over West Creek	2013	9,550	Good
NB I-35 over South West Creek	2012	9,400	Good
NB I-35 over West Creek	2012	9,400	Fair
SB I-35 over White Breast Creek	1969	8,850	Fair