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Every bridge in Winnebago County, Iowa

Name: Every bridge in Winnebago County, Iowa
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

54 inventoried bridges, busiest first

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

Winnebago County, Iowa, has 54 bridges in the 2025 National Bridge Inventory: 18 rated good, 20 fair, and 16 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
US 69 over Winnebago River	1988	5,400	Fair
Secor Ave over Winnebago River	1966	3,200	Fair
US 69 & Ia 9 over Winnebago River	1988	2,960	Fair
Ia 9 over Drainage Ditch	1975	2,320	Fair
US 69 over Lime Creek	1931	1,970	Fair
J St over Winnebago River	1974	1,884	Fair
Ia 9 over Stream	1975	1,650	Fair
US 69 over Pike Run Creek	1968	1,650	Fair
FM over Blue Earth River	1924	938	Poor
FM over Beaver Creek	1987	848	Fair
FM over Winnebago River	1968	649	Fair
FM over Buffalo Creek	2010	439	Good
20TH Ave over N Fork Buffalo Creek	1989	409	Fair
FM over Winnebago River	1974	330	Fair
10TH Ave over N Fork Buffalo Creek	2001	279	Fair
FM over Winnebago River	2002	270	Fair
Broadway Ave over Winnebago River	1975	245	Poor
FM over Pike Run Creek	1990	170	Fair
10TH Ave over Blue Earth River	2011	120	Good
A34 (420TH St) over Pike Run Creek	2014	100	Good
FM over Drainage Ditch	1955	90	Fair
FM over Winnebago River	1989	90	Good
Local over Drainage Ditch	1928	82	Poor
Local over Drainage Ditch	1976	72	Poor
Local over N Fork Buffalo Creek	2011	71	Good
460TH St over Drainage Ditch	2005	62	Fair
A38 168TH Ave over Drainage Ditch	2017	48	Good
Local over Blue Earth River	2010	46	Good
FM over Twister Branch	2011	45	Good
440TH St over Winnebago River	2012	41	Good
Local over Beaver Creek	1976	41	Poor
Local over Drainage Ditch	1966	41	Poor
Local over Beaver Creek	1985	35	Poor
Local over Drainage Ditch	1950	35	Poor
Local over Winnebago River	2011	35	Good
160TH Ave over Pike Run	2022	30	Good
Local over Beaver Creek	1991	30	Fair
Local over N Fork Buffalo Creek	2001	30	Fair
Local over Winnebago River	1993	30	Good
140TH Ave over Pike Run	2019	26	Good
FM over N Fork Buffalo Creek	2006	26	Fair
Local over Buffalo Creek	1975	26	Poor
Local over Drainage Ditch	1985	26	Poor
Local over Pike Run	2005	26	Good
30TH Ave over N Fork Buffalo Creek	2000	21	Good
350TH St over Buffalo Creek	2020	21	Good
Local over Drainage Ditch	1964	20	Poor
135TH Ave over Twister Branch	2023	11	Good
200TH Ave over Winnebago River	2015	11	Good
Local over N Buffalo Creek	1949	11	Poor
Local over Pike Run	1976	11	Poor
Local over N Buffalo Creek	1949	5	Poor
Local over N Fork Buffalo Creek	1900	5	Poor
Local over Pike Run	1976	5	Poor

Source: FHWA National Bridge Inventory, 2025.

Winnebago County bridge conditions · Iowa bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.