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160TH Ave over Tributary to Sugar Creek

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

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

160TH Ave over Tributary to Sugar Creek in Lee County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2024, making it 1 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 95 of the 214 inventoried bridges in Lee County rated good (44.4%); 30 (14.0%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
Its most recent inspection on record is dated May 2024, on a 48-month routine inspection cycle.
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

Component	Rating (2025)	FHWA scale meaning
Culvert	9	Excellent condition


Structure	Concrete culvert
Length	about 21 ft
Location	0.4 mi north of J-62
NBI structure number	000000000218491
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	May 2024
Inspection interval (item 91)	48 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
Ave L over Dry Creek	1915	10,953	Poor
US 136 over Mississippi River RR Rd	1985	10,500	Fair
Ave H over French Creek	1983	10,382	Fair
Ia 27 over Stream	1947	7,200	Fair
Ia 27 over Sugar Creek	2001	7,200	Fair
Ia 2 over US 61	2011	6,200	Fair