Every bridge in Sac County, Iowa

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

221 inventoried bridges, busiest first

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

Sac County, Iowa, has 221 bridges in the 2025 National Bridge Inventory: 85 rated good, 71 fair, and 65 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 20 over Unnamed Stream	2017	4,850	Good
E Main St over Raccoon River	2004	3,853	Good
US 20 EB US 71 SB over North Raccoon River	2012	3,300	Good
US 20 WB US 71 NB over North Raccoon River	2012	3,300	Good
US 20 EB over Cedar Creek	2012	2,950	Good
US 20 WB over Cedar Creek	2012	2,950	Good
Ia 175 over High St	1934	2,540	Fair
US 20 EB over US 71 NB	2012	2,440	Good
US 20 WB over US 71 NB	2012	2,440	Good
US 20 EB over Boyer River	2018	2,425	Good
US 20 WB over Boyer River	2017	2,425	Good
US 20 EB over US 71 SB & Ia 471	2012	2,195	Good
US 20 WB over US 71 SB & Ia 471	2012	2,195	Good
Ia 175 over Boyer River	1967	1,820	Fair
Ia 175 over Stream	1937	1,820	Fair
US 71 over Cedar Creek	2015	1,720	Good
US 71 over Raccoon River	2015	1,720	Good
Ia 175 over Stream	2011	1,700	Good
Ia 175 over Stream	2002	1,680	Good
Ia 39 over Natural Stream	1951	1,540	Fair
Ia 175 over Odebolt Creek	1994	1,500	Fair
Ia 39 over Porter Creek	2023	1,450	Good
Ia 471 over Drainage Ditch	1933	1,320	Fair
FM over Odebolt Creek	1984	1,228	Good
S Center Street over Dd #1	2009	1,196	Good
S.center Street over Lime Creek - Dd #3	2009	1,196	Good
Needham Ave over Small Natural Stream	1939	1,117	Poor
N 5TH St over North Raccoon River	1973	1,109	Fair
Ia 471 over Boyer River	1984	1,070	Fair
Ia 471 over Branch Boyer River	1984	1,070	Good
255TH St over Big Cedar Creek	1993	1,008	Good
FM over Indian Creek	1969	938	Poor
255TH St over Little Indian Creek	1968	928	Poor
FM over Boyer River	1956	848	Poor
Gard Ave over Boyer River	2010	848	Good
FM over Small Creek	2000	748	Good
D 36 (255TH St) over Drainage Ditch	1933	679	Fair
FM over Inlet Creek	1987	638	Good
FM over Dd #57	2007	628	Good
D54 355TH St over Stream	2022	559	Good
M43 Gard Ave over Stream	2017	559	Good
M43 Gard Ave over Stream	2017	559	Good
FM over Lime Creek	1999	529	Good
FM over Dd 38 (buck Run Creek)	2008	509	Good
FM over Boyer River	1950	489	Fair
High St over Drainage	1968	479	Poor
FM over Halfway Creek	1991	469	Fair
FM over No Name Creek	1971	450	Fair
Ahrens St over Raccoon River	1982	354	Fair
D59 360TH St over Creek	2014	330	Good
FM over Inlet Blackhawk Lk	1989	330	Fair
N14 Union Ave over Stream	2022	330	Good
FM over Halfway Creek	1973	319	Fair
FM over Racoon River	1970	319	Fair
Main St over Drainage	2003	306	Good
FM over No Name Creek	1992	290	Good
FM over Raccoon River	1965	290	Poor
FM over Racoon River	1972	290	Fair
D15 190TH St over Boyer River	1964	280	Poor
FM over Dd 81	1988	270	Fair
FM over No Name Creek	1925	249	Poor
FM over Overflow on Boyer River	1964	249	Poor
Willow St over Drainage	1900	232	Poor
Local over Cedar Creek	1987	230	Fair
FM over Dd #57	1975	210	Fair
Cory Ave over Elk Creek	2010	170	Good
FM over No Name Creek	1969	170	Poor
FM over So Silver Creek	1999	170	Good
FM over Raccoon River	1985	159	Fair
FM over Raccoon River	1974	150	Fair
Quincy Ave over Indian Creek	2017	139	Good
FM over Racoon River	1920	120	Poor
Walnut St over Odebolt Creek	2023	120	Good
FM over Raccoon River	1974	110	Poor
FM over Small Stream	1977	110	Poor
FM over Boyer River	1975	100	Fair
FM over Boyer River	1979	100	Fair
FM over Porter Creek	1960	100	Fair
Local over Stream	1957	100	Poor
FM over Odebolt Creek	1951	71	Poor
FM over Racoon River	1924	71	Poor
FM over Small	1979	71	Fair
Otter Ave over Stream	2019	71	Good
FM over Boyer River	1958	60	Poor
FM over Small Stream	1984	60	Fair
FM over Unnamed Creek	1955	60	Poor
Local over Boyer River	1916	60	Poor
Local over Stream	1957	60	Fair
Local over Stream	1957	60	Fair
FM over Cedar Creek	2006	50	Good
FM over Lime Creek	1922	50	Fair
FM over Small Stream	1930	50	Fair
FM over Stream	1924	50	Poor
Local over Halfway Creek	1918	50	Poor
Local over Lime Creek	1989	50	Good
Local over Stream	1924	50	Fair
FM over No Name Creek	1954	45	Poor
FM over Raccoon River	1921	45	Poor
Local Rd over Otter Creek	1968	45	Poor
Local over DD#16	1924	45	Poor
Local over No Name Creek	1964	45	Poor
Local over Small Stream	1914	45	Poor
Local over Stream	1993	45	Good
Local over Stream	1961	45	Poor
320TH St over Indian Creek	2021	40	Good
Ira Avenue over Stream	2022	40	Good
Local over Boyer River	1994	40	Good
Local over Boyer River	2005	40	Good
Local over Raccoon River	1976	40	Fair
Local over Stream	1934	40	Fair
Local over Stream	2005	40	Good
Local over Stream	1960	40	Fair
FM over Cedar Creek D D #181	1966	34	Poor
FM over Dd #31	1919	34	Fair
Local over Boyer Creek	1958	34	Fair
Local over Boyer Valley	1925	34	Poor
Local over No Name Creek	1926	34	Poor
Local over No Name Creek	1988	34	Fair
Local over Small Creek	1925	34	Poor
Local over Stream	2008	34	Good
Local over Stream	1934	34	Poor
Local over Stream	2008	34	Good
Local over Wall Lake Inlet	2002	34	Good
160TH St over Boyer Creek	2024	30	Good
300TH St over Small Stream	2019	30	Good
FM over Odebolt Creek	1970	30	Fair
FM over Small	1978	30	Fair
Local Rd over Small	1977	30	Poor
Local Road over Boyer River	1969	30	Fair
Local Road over Drainage	1964	30	Poor
Local Road over Small Stream	1923	30	Poor
Local Road over Small Stream	1932	30	Poor
Local over Dd #25	2001	30	Good
Local over Elk Creek	1984	30	Fair
Local over Raccoon River	1985	30	Good
Local over Small Stream	1985	30	Poor
Local over Small Stream	1994	30	Good
Local over Stream	1917	30	Poor
Local over Stream	1973	30	Fair
Local over Stream	2001	30	Good
Local over Stream	1981	30	Poor
Local over Wall Lake Outlet	1993	30	Good
FM over Boyer River	1976	26	Fair
FM over D D #71	1930	26	Poor
FM over Indian Creek	1998	26	Good
FM over Porter Creek	1953	26	Fair
FM over Small Creek	1919	26	Fair
FM over Small Stream	1945	26	Poor
FM over Stream	1966	26	Fair
FM over Stream	1981	26	Poor
Local Road over Small Stream	1919	26	Fair
Local over Boyer River	1989	26	Good
Local over Raccoon River	1975	26	Fair
Local over Raccoon River	1930	26	Poor
Local over Racoon River	1992	26	Good
Local over Small Stream	1971	26	Poor
Local over Small Stream	1986	26	Poor
Local over Small Stream	1999	26	Good
Local over Small Stream	1919	26	Fair
Local over Small Stream	1917	26	Fair
Local over Stream	1924	26	Poor
Local over Stream	1928	26	Fair
Local over Stream	1953	26	Poor
Local over Stream	1985	26	Fair
270TH St over Indian River	2024	25	Good
230TH St over US 20	2012	20	Good
Buchanan Ave over Stream	2000	20	Good
Buchanan Ave over Stream	2024	20	Good
FM over Boyer River	1967	20	Fair
FM over Dd #71	1920	20	Poor
FM over Indian Creek	1917	20	Fair
FM over Small Creek	1993	20	Good
FM over Small Stream	1974	20	Poor
Local over Indian Creek	1999	20	Good
Local over Raccoon River	1985	20	Fair
Local over Small Stream	1971	20	Fair
Local over Small Stream	1985	20	Fair
Local over Small Stream	1949	20	Poor
Local over Small Stream	1931	20	Poor
Local over Stream	1997	20	Good
Local over Stream	1994	20	Fair
Local over Stream	1956	20	Poor
Local over Stream	2003	20	Good
Rolland Ave over Outlet Creek	2022	20	Good
180TH St over Stream	1997	15	Good
300TH St over Creek	2014	15	Good
350TH St over Small Stream	2017	15	Good
Dean Ave over Small Stream	2017	15	Good
FM over Stream	1923	15	Fair
Fox Ave over Boyer Creek	2021	15	Good
Local over Boyer River	1931	15	Poor
Local over Boyer River	1974	15	Fair
Local over Boyer River	1979	15	Fair
Local over Boyer River	1981	15	Fair
Local over Odebolt Creek	1981	15	Poor
Local over Small Stream	1974	15	Poor
Local over Small Stream	1985	15	Fair
Local over Small Stream	1986	15	Fair
Local over Small Stream	1923	15	Poor
Local over Small Stream	1980	15	Poor
Local over Small Stream	1985	15	Fair
Local over Stream	2001	15	Good
Local over Stream	1960	15	Poor
Local over Wheeler Creek	1932	15	Fair
380TH St over Small Stream	2012	11	Good
Esther Ave over Small Stream	2019	11	Good
Ira Ave over Stream	2020	11	Good
Local over Raccoon River	1989	11	Good
Local over Small Stream	1999	11	Good
Local over Small Stream	1924	11	Poor
Local over Small Stream	1953	11	Poor
Local over Small Stream	1916	11	Poor
Local over Stream	1973	11	Fair
Local over Stream	1958	11	Poor
Local over Stream	1932	11	Poor
Local over Stream	2002	11	Good
Bettin Ave over Stream	2017	5	Good
Local Road over Small Stream	2001	5	Good
Local over Boyer River	1978	5	Fair
Local over Small Stream	1922	5	Fair
Pk 607(BLKHAWK) over Black Hawk Lake	1989	–	Fair

Source: FHWA National Bridge Inventory, 2025.

Sac County bridge conditions · Iowa bridges by county.

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