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WB US 34 over Keg Creek

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

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

WB US 34 over Keg Creek in Mills 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 1969, making it 56 years old at the 2025 inventory.
It carries about 3,650 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 54 of the 184 inventoried bridges in Mills County rated good (29.3%); 35 (19.0%) 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 246 ft
Location	0.2 mi. E of jct. SR L35
NBI structure number	000000000600956
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-29 over Fulsom Lake Outlet	2010	19,700	Good
NB I-29 over St Marys Creek	2009	9,850	Good
SB I-29 over St Marys Creek	2009	9,850	Good
Locust Street over Tinkle Branch	1976	8,957	Fair
US 34 over Missouri River	2014	7,100	Good
NB I-29 over Drainage Ditch	2009	6,850	Good