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Every bridge in Palo Alto County, Iowa

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

135 inventoried bridges, busiest first

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

Palo Alto County, Iowa, has 135 bridges in the 2025 National Bridge Inventory: 35 rated good, 79 fair, and 21 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 18 & Ia 4 over W Fork Des Moines River	1965	4,890	Good
US 18 over Drainage Ditch	1958	3,500	Fair
US 18 over Cylinder Creek	2023	3,390	Good
US 18 over Prairie Creek	1923	2,510	Fair
Ia 4 over W. Fork Des Moines River	1958	2,460	Fair
Ia 4 over Drainage Ditch	1918	2,040	Fair
Ia 4 over Drainage Ditch #41	2000	2,040	Fair
Ia 4 over Ditch #49	2018	2,010	Good
Ia 4 over Drainage Ditch	1976	2,010	Good
FM over Dd 84	2002	1,008	Good
FM over West Fork Des Moines R	1989	995	Fair
FM over Jack Creek	2007	888	Good
FM over Silver Creek	2002	769	Good
FM over Dd 98	2005	709	Good
FM over Prairie Creek	2005	681	Good
FM over Dd #48	2005	669	Good
FM over Dd 81	1994	669	Good
FM over Old Channel Des Moines R	1994	669	Good
530TH Ave over Cylinder Creek	1925	539	Fair
FM over Br Silver Creek	1963	538	Fair
FM over Silver Creek	2006	538	Good
FM over Dd #41	1991	518	Fair
B55 430TH St over Dd #61	2016	478	Good
300TH St over Cylinder Creek	2006	450	Fair
FM over Dd Jt 22	1975	350	Fair
FM over Dd Jt 22	1975	350	Fair
B63 (490TH St) over Dd 63	2014	309	Good
B63 490TH St over DD84	2021	309	Good
FM over Dd 84	2006	309	Good
FM over Dd 84	2006	309	Good
FM over Dd	1965	300	Fair
FM over Des Moines River	1996	290	Good
FM over Des Moines River	1996	290	Good
FM over Dd #114	1973	275	Fair
FM over Dd #81	1991	244	Fair
FM over Creek	1965	193	Fair
FM over Cylinder Creek	1966	193	Fair
FM over Dd 80	1975	133	Fair
FM over Cylinder Creek	1975	131	Fair
FM over Ss #98	1973	120	Poor
Local Rd over Dd Jt 60	1989	100	Fair
Local over Dd #80	1984	100	Fair
Local over Stream	1927	90	Poor
440TH Ave over Stream	1972	82	Fair
Local over Dd 61	1978	82	Fair
Local over Stream	1973	82	Fair
FM over DD175	1977	81	Fair
FM over Dd #114	1982	81	Fair
Local over Cylinder Creek	1991	81	Fair
Local over Jack Creek	1986	73	Fair
Local over Jack Creek	1973	73	Fair
Local over Prairie Creek	1990	73	Good
FM over Dd	1946	72	Poor
Local over Cylinder Creek	1962	72	Fair
Local over Dd 81	1996	72	Good
Local over Old Channel Des Moines R	1931	72	Fair
FM over West Fork Des Moines R	1983	71	Fair
Local over DD#JT.63	1985	62	Fair
Local over Dd #98	1987	62	Fair
FM over Creek	1965	60	Fair
FM over Dd 63	1972	60	Fair
FM over Prairie Creek	1965	60	Fair
FM over Stream	1972	60	Poor
400TH St over Cylinder Creek (dd 80)	2024	52	Good
Local over Dd 175	1960	51	Poor
Local over Silver Creek	1978	50	Fair
570TH Ave over Stream	2023	46	Good
FM over Des Moines River	1988	46	Good
FM over Old Channel Des Moines R	1956	46	Poor
Local over Dd 41	1948	46	Poor
Local-closed! over Dd 81	1882	46	Fair
FM over Cylinder Creek	1987	45	Fair
FM over Dd	1977	45	Fair
FM over Dd	1976	41	Fair
FM over Dd #81	1982	41	Fair
Local over Dd	1915	41	Poor
Local over Dd #61	1980	41	Fair
Local over Stream	1962	41	Poor
FM over Dd	1973	40	Fair
FM over Dd	1978	40	Fair
FM over Dd 48	1965	40	Fair
350TH Ave over Pickerel Run	2024	36	Good
Local over Stream	1928	36	Fair
Co Park Rd over Stream	1916	35	Fair
Local over Cylinder Creek	1974	35	Fair
Local over Stream	1928	35	Fair
FM over Dd 63	1995	34	Good
FM over Cylinder Creek	1979	31	Fair
FM over Stream	1977	31	Poor
Local over Cylinder Creek	1987	31	Fair
Local over Cylinder Creek	1992	31	Good
FM over Dd #175	1984	30	Fair
FM over Stream	1931	30	Poor
Local over Drainage DDJT22	1975	30	Fair
Local over Outlet of Rush Lake	1998	30	Fair
Local over Silver Creek	1981	30	Fair
Local over Stream	2004	30	Fair
Local over Stream	1914	30	Fair
350TH St over Stream	2016	26	Good
Local over Beaver Creek Dd #98	1984	26	Fair
Local over DD#63	1984	26	Fair
Local over Dd No 98	1974	26	Fair
Local over Drainage Ditch	1975	26	Poor
Local over Jack Creek	1990	26	Good
Local over Stream	1965	26	Poor
270 St over Dd 63	2000	21	Good
Local Rd over Small	1979	21	Fair
Local over Cylinder Creek	1999	21	Fair
Local over Dd 175	1926	21	Poor
Local over Dd 21	1960	21	Poor
Local over Dd 80	1992	21	Fair
Local over Dd 98	1972	21	Poor
Local over Jack Creek-dd JT.#17	1985	21	Fair
Local over Lizard Creek	1921	21	Poor
Local over Stream	1932	21	Fair
Local over Stream	1972	21	Fair
FM over Dd #123	1966	20	Poor
Local over Small	1979	20	Fair
Local over Cylinder Creek	1972	15	Fair
Local over Dd 176	2005	15	Fair
Local over Dd 61	1997	15	Good
Local over Dd 63	1958	15	Poor
Loc over Stream	1998	11	Fair
Local over Cylinder Creek	1931	11	Fair
Local over DD6	1917	11	Poor
Local over Dd #22	1982	11	Fair
Local over Dd 175	1956	11	Fair
Local over Dd 63	1977	11	Fair
Local over Stream	1989	11	Good
Local over Stream	1998	11	Good
440TH Ave over Side Ditch Bridge	1965	10	Fair
500TH St over Stream	2016	5	Good
Local over Dd 175	1921	5	Fair
Local over Dd 98	1977	5	Fair
Local over Stream	1915	5	Poor

Source: FHWA National Bridge Inventory, 2025.

Palo Alto County bridge conditions · Iowa bridges by county.

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