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Every bridge in Plymouth County, Iowa

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

430 inventoried bridges, busiest first

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

Plymouth County, Iowa, has 430 bridges in the 2025 National Bridge Inventory: 233 rated good, 107 fair, and 90 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 75 over Stream	1999	18,200	Fair
US 75 over Stream	2019	14,900	Good
US 75 over Stream	2019	14,900	Good
US 75 over Stream	2019	14,900	Good
US 75 over Stream	2019	14,900	Good
US 75 over Drainage Ditch	2023	14,000	Good
US 75 over Dry Creek	2023	14,000	Good
US 75 over Dry Creek	2023	14,000	Good
US 75 over Dry Creek	2023	14,000	Good
US 75 over Dry Creek	1972	14,000	Good
US 75 over Flat Creek	2023	14,000	Good
US 75 over Stream	1926	14,000	Poor
US 75 over W Fk Floyd River	1956	10,400	Fair
200TH Street over Floyd River	2007	8,224	Fair
SB US 75 over Stream	1948	7,500	Fair
SB US 75 over Stream	2020	7,500	Good
US 75 SB over Stream	2020	7,500	Good
NB US 75 over Stream	1926	7,450	Good
NB US 75 over Stream	2019	7,450	Good
NB US 75 over Stream	1926	7,450	Fair
NB US 75 over Drainage Ditch	1972	7,000	Fair
NB US 75 over Stream	1950	7,000	Fair
SB US 75 over Drainage Ditch	1948	7,000	Fair
SB US 75 over Drainage Ditch	1948	7,000	Fair
SB US 75 over Dry Creek	1948	7,000	Fair
SB US 75 over Dry Creek	1948	7,000	Fair
SB US 75 over Dry Creek	1948	7,000	Fair
SB US 75 over Dry Creek	1948	7,000	Fair
SB US 75 over Flat Creek	1948	7,000	Fair
SB US 75 over Stream	1948	7,000	Fair
Ia 60 over Drainage Ditch	2003	6,900	Good
Ia 60 over Wolf Creek	2004	6,200	Good
200TH Street over Ia 75	2006	4,973	Good
Ia 3 over Floyd River	1981	4,270	Fair
Ia 3 over Stream	1994	3,820	Good
Ia 3 over Stream	1994	3,820	Fair
Iowa 3 over US 75 (lemars Bypass)	2005	3,660	Good
Ia 60 NB over Stream	1932	3,200	Fair
Ia 60 SB over Stream	2004	3,200	Good
US 75 NB over Lake Avenue	2006	3,000	Good
US 75 SB over Lake Avenue	2006	3,000	Good
Ia 404 NB over Floyd River	1972	2,400	Fair
Ia 404 SB over Floyd River	1957	2,400	Fair
Ia 3 & 12 over Drainage Ditch	1976	2,340	Good
Ia 3 & 12 over Westfield Creek	1976	2,270	Good
Ia 3 over Big Whiskey Slough	1999	2,140	Good
FM over Perry Creek	1970	2,134	Fair
Ia 3 over W Fork of Floyd River	2004	2,070	Good
US 75 NB over Ia 60	2005	2,070	Good
US 75 SB over Ia 60	2005	2,070	Good
Ia 140 over Stream	1976	1,990	Good
Ia 12 over Broken Kettle Creek	1956	1,940	Fair
Ia 12 over Drainage Ditch	1957	1,940	Fair
Ia 12 over Drainage Ditch	1957	1,940	Fair
FM C-38 over Drainage	1977	1,615	Fair
FM C-60 over Floyd River	1985	1,586	Good
Ia 3 over Big Sioux Overflow	1962	1,570	Fair
Ia 3 over Big Sioux Overflow	1962	1,570	Fair
Ia 3 over Big Sioux River	2010	1,570	Good
Ia 3 over Westfield Creek	1962	1,570	Fair
FM over Floyd River	2007	1,566	Good
FM C-70 over Floyd River	1990	1,487	Good
FM over Minnie Creek	1975	1,446	Fair
Ia 3 over Drainage Ditch	2020	1,420	Good
Ia 3 over Mink Creek	1954	1,420	Fair
Ia 3 over Stream	1954	1,420	Fair
Ia 140 over W Fk Little Sioux River	1964	1,390	Fair
Access Road over Stream	2000	1,347	Good
C 38 over Mink Creek	2012	1,347	Good
C-38 over W Br Floyd River	2012	1,347	Good
FM C-38 over Plymouth Creek	1977	1,267	Good
Ia 12 over Drainage Ditch	1957	1,250	Fair
Ia 12 over Drainage Ditch	1957	1,250	Fair
FM K-49 over Plymouth CR	1974	1,236	Fair
FM over Johns Creek	1976	1,157	Fair
Ia 12 over Beaver Creek	1975	1,130	Fair
Ia 12 over Indian Creek	2021	1,130	Good
Ia 140 over Clear Creek	1964	1,130	Fair
Big Sioux River Rd over Big Sioux River	1996	1,121	Fair
FM over Perry Creek	1949	1,028	Fair
FM over Perry Creek	1970	1,028	Fair
FM K-49 over Drainage	1975	1,017	Good
Ia 140 over Drainage	2008	970	Good
Ia 140 over Drainage	1963	970	Fair
Ia 140 over Rathburn Creek	1964	970	Fair
C38 over Perry Creek	2017	948	Good
Ia 3 over Broken Kettle Creek	1975	940	Fair
Ia 3 over Stream	1975	940	Good
Ia 3 over Westfield Creek	1975	940	Good
FM K-64 over Deep Creek	1982	938	Good
FM C-60 over Perry Creek	1984	908	Good
FM over Small	1978	878	Good
FM over Deep Creek	1981	868	Good
4TH Ave.e over Willow Creek	1993	851	Good
FM over Creek	1976	848	Fair
FM over Whiskey Creek	1997	848	Good
FM over Bull Run	1995	838	Good
FM over Bull Run Creek	1960	838	Fair
FM K-49 over Whiskey Creek	1974	818	Fair
C30 190TH St over Plymouth Creek	2020	789	Good
FM over Plymouth Creek	1975	789	Good
FM K-42 over Drainage	2008	748	Good
FM over Drainage	1972	748	Good
FM over Willow Creek	1968	748	Fair
FM over Small	1978	688	Fair
FM over Drainage	1960	669	Fair
FM over W Branch Floyd River	1976	658	Good
FM C-60 over Big Whiskey Creek	2006	628	Good
FM C-60 over Kettle Creek	1969	628	Good
FM C-60 over Minnie Brook	1979	628	Good
FM K-42 over Mink Creek	1961	628	Fair
FM over Mink Creek	1961	628	Fair
FM over Mink Creek	1961	628	Fair
FM over Mink Creek	1961	628	Fair
FM over Small	1900	628	Fair
FM over Stephens Creek	1960	628	Poor
FM C-38 over Westfield Creek	1987	589	Good
FM over Big Sioux River	1967	589	Fair
FM over Willow Creek	1967	589	Fair
Local over Creek	1984	589	Good
FM C-70 over Big Whiskey Creek	1985	559	Good
FM C-70 over Drainage Ditch	1995	559	Good
FM over Mink Creek	1961	559	Fair
FM over Mink Creek	1961	559	Fair
FM over Muddy Creek	1985	559	Good
Marble Ave over Willow Creek	1994	538	Good
South Ridge Rd over Perry Creek	1978	518	Good
Local over Deep Creek	1953	510	Fair
FM K-49 over Muddy Creek	1974	509	Fair
FM K-18 over Broken Kettle Creek	1979	490	Fair
FM over Broken Kettle Creek	1976	489	Good
170TH St (sdb) over Drainage	2004	469	Good
FM C-70 over West Fork Little Sioux	1961	459	Fair
C70 over Mud Creek	1999	450	Good
FM C-70 over Elliot Creek	1999	450	Good
FM over Big Whiskey Slough	2008	450	Good
FM over Small	2006	450	Good
FM over Small	1978	450	Good
C44 230TH St over Floyd River	2019	439	Good
FM C-60 over Dry Branch	1992	439	Good
FM K-18 over Stream	1979	429	Fair
FM over Deer Creek	2003	429	Good
FM C-16 over Deep Creek	1960	409	Fair
FM over Mud Creek	2008	409	Good
Local over Clear Creek	1959	399	Fair
FM over Drainage Ditch	1994	390	Good
Imperial Rd over Creek	1977	379	Good
190TH St over Drainage	1935	359	Good
FM K-42 over Mink Creek	1985	359	Good
FM C-44 over Minnie Brook	1977	339	Good
325TH St over Perry Creek	2006	319	Good
FM over Indian Creek	1984	319	Good
Local over Willow Creek	1967	319	Fair
C66 310TH St over Little Sioux River	2018	309	Good
FM over Johns Creek	1977	309	Good
FM C-60 over Deep Creek	1990	290	Good
FM C-60 over West Fork Little Sioux	1963	290	Fair
FM over Ditch	1991	290	Good
FM over W Br Floyd River	1968	270	Fair
FM over Johns Creek	1971	259	Fair
FM over Perry Creek	1995	259	Good
FM over Small Stream	1987	259	Good
FM over Floyd River	2010	249	Good
FM over Drainage	1964	240	Good
E 2ND St over Drainage	2015	232	Good
FM over Indian Creek	1971	219	Fair
322ND St over Br of W F Little Sioux	1998	210	Good
L-22 over W Fork Little Sioux Riv	1974	210	Good
FM over Broken Kettle Creek	2010	199	Good
250TH St over Mud Creek	2000	190	Good
FM C-44 over Small	1978	190	Fair
FM K-42 over Carter Creek	1941	190	Poor
FM K-42 over Carter Creek	1966	190	Poor
FM over Drainage	1966	190	Fair
FM over Drainage	1966	190	Fair
FM over Mink Creek	1967	190	Fair
FM K-13 over Westfield Creek	1988	180	Good
FM over Westfield Creek	1988	180	Good
Fox Ave over Perry Creek	1983	170	Good
200TH St over Small Stream	1985	159	Good
FM C-43 over Broken Kettle Creek	1960	159	Poor
FM over Perry Creek	1940	159	Fair
Lake Ave over Plymouth Creek	1977	159	Good
FM C-44 over Dry Branch	1998	150	Good
FM C-44 over Johns Creek	1985	150	Good
FM over Rathbun Creek	1986	150	Good
FM over Drainage Ditch	1932	139	Fair
FM over Drainage Ditch	1933	139	Fair
FM over Little Sioux	1991	139	Good
L-22 over Little Sioux River	1974	139	Fair
150TH St over Floyd River	1954	131	Poor
160TH St over Floyd River	2013	131	Good
Quest Ave over West Fork Little Sioux	1967	131	Good
165TH St over West Branch Floyd River	1911	120	Poor
FM C-44 over Broken Kettle Creek	1965	120	Fair
FM K-64 over Drainage	1973	110	Fair
Nature Ave over Plymouth Creek	1900	100	Fair
Otter Ave over Deep Creek	2007	100	Good
270TH St over Perry Creek	1986	80	Good
270TH St over Perry Creek	2018	80	Good
280TH St over Drainage	1990	80	Good
Noble Ave over Plymouth Creek	2000	80	Good
Noble Ave over Plymouth Creek	2000	80	Good
150TH St over Willow Creek	1992	71	Good
150TH St over Wolf Creek	2016	71	Good
160TH St over Deep Creek	1900	71	Poor
200TH St over Drainage	2006	71	Good
200TH St over W.branch Floyd River	1960	71	Poor
240TH St over Dry Branch	1956	71	Fair
300TH St over Perry Creek	1991	71	Good
Lake Ave over Big Whiskey Creek	2002	71	Good
Lone Tree Rd over Perry Creek	1953	71	Poor
110TH St over Floyd River	1940	60	Fair
130TH St over Mink Creek	2002	60	Good
130TH St over Mink Creek	2004	60	Good
140TH St over Floyd River	1954	60	Poor
150TH St over Deep Creek	2004	60	Good
170TH St over Mink Creek	1934	60	Fair
190TH St over Clear Creek	2018	60	Good
195TH Street over Floyd River	1975	60	Good
270TH St over Mud Creek	1995	60	Good
320TH St over W Br Perry Creek	2001	60	Good
330TH St over Creek	1956	60	Poor
Local over Willow Creek	1941	60	Poor
Polk Ave over Deep Creek	1958	60	Poor
Quartz Ave over Willow Creek	1946	60	Poor
Tamarack Ave over Drainage Ditch	1948	60	Poor
120TH St over Mink Creek	1999	50	Good
190TH St over Bull Run	1961	50	Poor
260TH St over Mud Creek	1996	50	Good
300TH St over Mud Creek	1950	50	Poor
Jade Ave over Drainage	1989	50	Fair
Lake Ave over Minnie Brook	1998	50	Good
Lynx Ave over Big Whiskey Creek	1958	50	Poor
Lynx Avenue over Small Stream	1987	50	Good
Noble Ave over Mud Creek	2004	50	Good
Shamrock Ave over Deep Creek	1953	50	Poor
120TH St over Deep Creek	2014	45	Good
130TH St over Wolf Creek	2010	45	Good
200TH St over Clear Creek	2023	45	Good
250TH St over Perry Creek	2003	45	Good
270TH St over Dry Branch	1997	45	Good
300TH St over Dry Branch	2002	45	Good
Diamond Ave over Indian Creek	2023	45	Good
Juniper Ave over Mink Creek	1900	45	Poor
Nature Ave over Plymouth Creek	1940	45	Fair
Shamrock Ave over Creek	2000	45	Good
160TH St over Deep Creek	2015	40	Good
200TH St over Small Stream	1986	40	Good
300TH St over Big Whiskey Creek	2008	40	Good
Key Ave over Drainage	2018	40	Good
Quorn Rd over West Fork Little Sioux	1965	40	Fair
150TH St over Whiskey Creek	2011	34	Good
160TH St over Big Whiskey Slough	2015	34	Good
170TH St over Drainage	1900	34	Poor
200TH St over Mink Creek	1949	34	Poor
200TH St over Mink Creek	1953	34	Poor
240TH St over Rathburn Creek	2000	34	Good
260TH St over Dry Branch	1956	34	Poor
280TH St over Big Whiskey Creek	2010	34	Good
310TH St over Muddy Creek	1999	34	Good
Bluebird Ave over Local	1986	34	Good
Fawn Ave over Indian Creek	1900	34	Good
Granite Ave over Broken Kettle Creek	1900	34	Poor
Iris Ave over Mink Creek	1900	34	Poor
Juniper Ave over Drainage	2000	34	Good
Juniper Ave over Mink Creek	1948	34	Poor
Key Ave over West Branch Floyd River	2008	34	Good
Lynx Ave over Muddy Creek	1949	34	Poor
Marble Ave over Whiskey Creek	2003	34	Good
Otter Ave over Plymouth Creek	2016	34	Good
140TH St over Deep Creek	2001	30	Good
140TH St over Drainage	1961	30	Poor
190TH St over Broken Kettle Creek	2018	30	Good
200TH St over Drainage	1959	30	Poor
220TH St over Dd	1900	30	Good
220TH St over Johns Creek	2008	30	Good
230TH St over Rathburn Creek	1900	30	Poor
300TH St over Deer Creek	1990	30	Fair
310TH St over Creek	1900	30	Poor
320TH St over Creek	1900	30	Poor
C12 110TH St over Willow Creek	2014	30	Good
Fawn Ave over Broken Kettle Creek	2013	30	Good
Fawn Ave over Drainage	1900	30	Poor
Fir Ave over Broken Kettle Creek	1900	30	Poor
Fir Ave over Bull Run	1948	30	Poor
Hedge Ave over Perry Creek	2014	30	Good
Iris Ave over Mink Creek	2009	30	Good
Local over Drainage	1955	30	Poor
Nature Ave over Deep Creek	2018	30	Good
Nature Ave over Willow Creek	2018	30	Good
Noble Ave over Deep Creek	1953	30	Poor
Pioneer Ave over Deep Creek	1917	30	Poor
Pioneer Ave over Drainage	1991	30	Fair
Quartz Ave over Clear Creek	2000	30	Good
Quartz Ave over Willow Creek	1997	30	Good
Quest Ave over Willow Creek	2004	30	Good
Sunset Ave over Dd	1950	30	Fair
120TH St over Drainage	2013	26	Good
120TH St over Mink Creek	2003	26	Good
130TH St over Broken Kettle Creek	2013	26	Good
150TH St over Broken Kettle Creek	1952	26	Poor
150TH St over Mink Creek	1961	26	Fair
160TH St over Mink Creek	2003	26	Good
190TH St over Big Whiskey Slough	1990	26	Good
190TH St over Westfield Creek	1951	26	Poor
220TH St over Drainage	1958	26	Poor
220TH St over Perry Creek	1997	26	Good
240TH St over Clear Creek	2023	26	Good
260TH St over Creek	2002	26	Good
270TH St over Big Whiskey Creek	2016	26	Good
270TH St over Clear Creek	1991	26	Good
280TH St over Mud Creek	1900	26	Poor
300TH St over Johns Creek	1900	26	Poor
310TH St over Dry Branch	1941	26	Poor
310TH St over Muddy Creek	2017	26	Good
330TH St over Creek	2002	26	Good
Concord Ave over Drainage	2000	26	Good
Diamond Ave over Beaver Creek	1900	26	Poor
Diamond Ave over Broken Kettle Creek	2003	26	Good
Echo Road over Broken Kettle Creek	1996	26	Good
Fawn Ave over Bull Run	2015	26	Good
Fir Ave over Bull Run	1949	26	Fair
Granite Ave over Bull Run	2019	26	Good
Ideal Road over Unnamed Waterway	2021	26	Good
Impala Ave over Mink Creek	1938	26	Poor
Key Ave over Big Whiskey Creek	1952	26	Good
Lake Ave over West Fork Floyd River	1999	26	Good
Local over West Fork Little Sioux	1963	26	Fair
Lynx Ave over Plymouth Creek	1960	26	Poor
Marble Ave over Elliot Creek	2020	26	Good
Noble Ave over Mud Creek	2002	26	Good
Otter Ave over Plymouth Creek	2016	26	Good
Otter Ave over Trib to Floyd River	2023	26	Good
Quarry Road over W Fork Little Sioux	2022	26	Good
Quest Ave over Rathburn Creek	1950	26	Poor
Tamarack Ave over Little Sioux River	2017	26	Good
Tamarack Ave over Whiskey Creek	2009	26	Good
120TH St over Indian Creek	1900	20	Poor
120TH St over W Br Floyd River	1941	20	Poor
130TH St over Drainage	1961	20	Poor
130TH St over W Br Floyd River	1900	20	Poor
140TH St over Broken Kettle Creek	1948	20	Poor
140TH St over Indian Creek	1956	20	Poor
140TH St over Willow Creek	2000	20	Good
160TH St over Broken Kettle Creek	1964	20	Fair
180TH St over Westfield Creek	1948	20	Poor
190TH St over Drainage	1949	20	Poor
190TH St over Westfield Creek	1990	20	Good
200TH St over Broken Kettle Creek	1972	20	Fair
280TH St over Perry Creek	1900	20	Poor
280TH St over Unnamed Tributary	2022	20	Good
308TH St over W Br Perry Creek	1998	20	Good
310TH St over Big Whiskey Creek	2008	20	Good
Bluebird Ave over Drainage	1949	20	Poor
Evergreen Ave over Indian Creek	1900	20	Poor
Granite Ave over Broken Kettle Creek	1959	20	Poor
Ideal Road over Drainage	2003	20	Good
Juniper Ave over Drainage	1900	20	Fair
Roosevelt Ave over Creek	1956	20	Good
Shamrock Ave over Drainage	1991	20	Good
Sunset Ave over Dd	1956	20	Poor
120TH St over Indian Creek	1900	15	Poor
150TH St over Willow Creek	2011	15	Good
180TH St over Big Whiskey Slough	2006	15	Good
180TH St over Br of Whiskey Creek	2016	15	Good
180TH St over Bull Run	1985	15	Good
190TH St over Mink Creek	1947	15	Poor
190TH St over Westfield Creek	1962	15	Fair
200TH St over Big Whiskey Slough	1987	15	Fair
220TH St over Drainage	1900	15	Fair
220TH St over Plymouth Creek	2004	15	Good
230TH St over Big Whiskey Slough	2017	15	Good
235TH St over Broken Kettle Ck	1900	15	Poor
250TH St over Drainage	1978	15	Fair
270TH St over Deer Creek	1997	15	Good
270TH St over Deer Creek Tributary	2023	15	Good
280TH St over Minnie Brook	2004	15	Good
Diamond Ave over Westfield Creek	2002	15	Good
Evergreen Ave over Bull Run	2014	15	Good
Hedge Ave over Small Creek	2020	15	Good
Mahogany Ave over Wolf Creek	2006	15	Good
Otter Ave over Willow Creek	1949	15	Poor
Pioneer Ave over Willow Creek	1990	15	Good
Ritchie Rd over Mud Creek	1948	15	Poor
Roosevelt Ave over Dd	1900	15	Poor
Roosevelt Ave over W F Little Sioux	1900	15	Poor
Sunset Ave over Dd	1956	15	Fair
100TH St over Deep Creek	2006	11	Good
150TH St over Broken Kettle Creek	1952	11	Poor
180TH St over Westfield Creek	1900	11	Fair
190TH St over Drainage	1975	11	Good
240TH St over Big Whiskey Slough	1953	11	Poor
260TH St over Johns Creek	1900	11	Poor
260TH over Johns Creek	1966	11	Poor
270TH St over Big Whiskey Slough	1990	11	Good
270TH St over Carter Creek	1900	11	Poor
280TH St over Deer Creek	1956	11	Fair
280TH St over Dry Branch	1900	11	Poor
280TH St over Perry Creek	2005	11	Good
300TH St over Creek	1956	11	Poor
320TH St over Big Whiskey Creek	1900	11	Poor
320TH St over Mud Creek	1900	11	Poor
320TH St over Muddy Creek	2017	11	Good
Concord Ave over Unnamed Creek	1949	11	Poor
Diamond Ave over Westfield Creek	1900	11	Poor
Dogwood Ave over Indian Creek	1984	11	Fair
Evergreen Ave over Drainage	1900	11	Poor
Fawn Ave over Broken Kettle Creek	1953	11	Poor
Hedge Ave over Broken Kettle Creek	2014	11	Good
Iris Ave over Creek	2010	11	Good
Local over Deep Creek	1941	11	Poor
Nature Ave over Big Whiskey Creek	1995	11	Good
Polk Ave over Drainage	2005	11	Good
Polk Ave over Willow Creek	2006	11	Good
120TH St over Indian Creek	2021	5	Good
120TH St over Willow Creek	1989	5	Good
200TH St over Clear Creek	1946	5	Poor
240TH St over Mud Creek	1956	5	Poor
240TH St over Perry Creek	1900	5	Poor
280TH St over Johns Creek	1992	5	Good
Evergreen Ave over Indian Creek	1961	5	Poor
Evergreen Ave over Indian Creek	1996	5	Good
Fir Ave over Dubols Creek	2022	5	Good
Granite Ave over Perry Creek	1952	5	Poor
Juniper Ave over Drainage	1990	5	Good
Local over Drainage	2005	5	Good
Mallard Ave over Small Natural Stream	1974	5	Fair
Marble Ave. over Plymouth Creek	1946	5	Poor
Omega Ave over Creek	1900	5	Fair

Source: FHWA National Bridge Inventory, 2025.

Plymouth County bridge conditions · Iowa bridges by county.

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