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E 60 over I-29

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

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

E 60 over I-29 in Monona 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 1967, making it 58 years old at the 2025 inventory.
It carries about 270 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 59 of the 160 inventoried bridges in Monona County rated fair (36.9%); 41 (25.6%) 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 219 ft
Location	at jct SR E60
NBI structure number	000000000037260
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
NB I-29 over Robinson Ditch	2011	7,800	Good
SB I-29 over Robinson Ditch	2009	7,800	Good
NB I-29 over Cleghorn Creek	2012	7,250	Good
SB I-29 over Cleghorn Creek	2011	7,250	Good
Ia 175 over Mccandlesscleghorn Ditch	2023	5,300	Good
Ia 175 over I-29	1959	4,090	Poor