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Every bridge in Dickinson County, Iowa

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

83 inventoried bridges, busiest first

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

Dickinson County, Iowa, has 83 bridges in the 2025 National Bridge Inventory: 37 rated good, 33 fair, and 13 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 71 over E to W Okoboji Lkes Conn	1999	14,600	Good
Ia 9 over Inlet W Okoboji Lake	1971	8,500	Fair
US 71 & Ia 9 over East Okoboji Lake	1939	8,200	Fair
US 71 & Ia 9 over Dry Run Creek	1978	5,400	Good
Ia 9 over Little Sioux River	1971	4,310	Good
Ia 9 over W Fork Little Sioux Rvr	1929	4,310	Poor
FM over Lake Channel	2006	4,040	Good
220TH St over Stream	1952	2,834	Fair
South Market St over W Br Little Sioux River	1967	2,277	Fair
FM over Creek	1941	2,060	Poor
N14 (310TH Ave) over Muddy Creek	1951	1,514	Fair
FM over Muddy Creek	1989	1,422	Fair
Local over Lake Channel	2010	1,120	Good
FM over Little Sioux River	1979	1,076	Poor
M27 (130TH Ave) over Stony Creek	2013	1,008	Good
FM over Stony Creek	1977	934	Fair
FM over Stony Creek	2001	934	Good
FM over Muddy Creek	1999	873	Good
FM over Dugout Creek	1970	843	Poor
N14 (310TH Ave) over Drainage Ditch	1948	803	Poor
240TH Ave over Stream	1963	598	Fair
Harpen St. over Creek	1998	535	Fair
Lakeside Ave over Canals	1996	535	Good
FM over Creek	2001	478	Good
FM over Creek	2008	447	Good
FM over Muddy Creek	2002	325	Good
FM over Little Sioux	1969	319	Poor
FM over Little Sioux River	2003	315	Good
FM over Stony Creek	1990	315	Poor
FM A-31 over Drainage Ditch	1994	305	Poor
A43 260TH St over Creek	2023	300	Good
190TH Ave over Little Sioux River	2022	255	Good
Local over Mill Pond Creek	2008	254	Good
Bridge St over Canal	2010	232	Good
Lakeshore Dr over Canal	2012	232	Good
Lakeshore Dr over Drainage	2008	232	Good
140TH St over Outlet Silver Lake	2023	150	Good
FM over Little Sioux River	1964	112	Fair
Local over Creek	1971	102	Fair
FM over Branch Dugout Creek	2003	100	Good
A 18 140TH St over Little Sioux River	2022	81	Good
FM over Little Sioux River	1970	81	Fair
Local over Creek	1978	81	Fair
Local over Little Sioux River	2010	72	Good
Local over Little Sioux River	1999	71	Good
FM over W Br Little Sioux	1977	61	Poor
Local over Little Sioux River	2004	61	Good
Local over Muddy Creek	1971	61	Fair
Local over Creek	1973	60	Fair
Local over Stony Creek	1999	60	Good
FM over Little Sioux River	1974	51	Fair
FM over Little Sioux River	1970	51	Fair
Local over Br Little Souix	1975	51	Fair
Local over Little Sioux River	1963	51	Fair
S.2ND St over W Br Little Sioux River	2009	50	Good
270TH St over Creek	1926	41	Poor
Local over Muddy Creek	1979	41	Fair
110TH Ave over Stony Creek	2022	35	Good
Local over Little Sioux	1920	31	Poor
Local over Stony Creek	1974	31	Fair
180TH Ave over Stream	1955	26	Fair
Local over Creek	1974	26	Fair
Local over Drainage	1992	26	Good
Local over Little Sioux River	1964	26	Fair
Local over Muddy Creek	1962	26	Fair
140TH Ave over Dugout Creek	2011	20	Good
250TH St over Creek	2013	20	Good
330TH Ave over Stream	1974	20	Fair
FM over W Br Little Sioux River	1973	20	Fair
Local over Little Sioux River	1989	20	Fair
100TH Street over W Fork Little Sioux Rive	2011	15	Good
Local over Stony Creek	1992	15	Good
120TH Ave over Stream	1978	11	Fair
200TH St over Stream	1978	11	Fair
Local over Creek	1999	11	Good
Local over Muddy Creek	1970	11	Fair
Local over Muddy Creek	2007	11	Good
Local over Stony Creek	1946	11	Poor
Local over Stony Creek	1963	11	Fair
210TH St over Creek	1974	5	Fair
270TH St over Drainage Ditch	1926	5	Poor
Mini Wakan St Pk over Spirit Lake	1995	–	Good
Trappers Bay St Pk over Silver Lake Causeway	1984	–	Good

Source: FHWA National Bridge Inventory, 2025.

Dickinson County bridge conditions · Iowa bridges by county.

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