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Every bridge in Delaware County, Iowa

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

294 inventoried bridges, busiest first

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

Delaware County, Iowa, has 294 bridges in the 2025 National Bridge Inventory: 114 rated good, 160 fair, and 20 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 Stream	1963	9,700	Fair
US 20 over Drainage Ditch	1963	9,000	Fair
US 20 over Stream	1963	9,000	Good
Ia 13 over Maquoketa River	1991	7,900	Good
Ia 13 over US 20	1970	6,400	Fair
W Marion St over Maquoketa River	1980	6,294	Poor
Ia 13 over over Cc RR	1969	5,900	Fair
Ia 13 over Branch Maquoketa River	1975	5,200	Good
EB US 20 over Branch Plum Creek	1981	4,850	Good
WB US 20 over Branch Plum Creek	1963	4,850	Fair
Ia 13 over Branch Maquoketa River	1975	4,840	Fair
Ia 13 over Branch Maquoketa River	1975	4,840	Fair
Ia 13 over Stream	1975	4,840	Good
Ia 13 over Unnamed Creek	1974	4,840	Good
Ia 13 over Unnamed Creek	1975	4,840	Good
EB US 20 over over Abandon RR	1974	4,250	Fair
US 20 EB over 205TH Ave Spring Branch	1973	4,250	Fair
US 20 WB over 205TH Ave Spring Branch	1973	4,250	Fair
WB US 20 over over Abandon RR	1973	4,250	Good
EB US 20 over Maquoketa River	1974	3,850	Fair
EB US 20 over over Cc RR	1971	3,850	Fair
WB US 20 over Maquoketa River	1973	3,850	Fair
WB US 20 over over Cc RR	1971	3,850	Good
FM D-5x over US 20	1973	3,398	Fair
Ia 13 over Honey Creek	1983	3,080	Good
D22 210TH St over Br Prairie Creek	1953	3,015	Fair
W Marion St over Unnamed Stream	2011	2,887	Good
330th-332nd Ave over US 20	2016	2,877	Good
1ST Ave over Bear Creek	1974	2,498	Fair
Ia 38 over US 20	1974	2,180	Fair
Ia 3 over Lindsey Creek	1979	2,070	Fair
Ia 38 over over Cc RR	1988	1,930	Good
FM 210 St over Br Spring Creek	1978	1,885	Fair
Jefferson Rd over Small Stream	2003	1,719	Good
Ia 38 over Bell Creek	1973	1,530	Fair
210 St over Drainage Ditch	1978	1,463	Good
FM 145 Ave over Prairie Creek	1971	1,296	Fair
Ia 38 over Plum Creek	1950	1,270	Fair
FM 332 Ave over Bear Creek	1997	1,218	Fair
D22 145TH Ave over over Cc RR	1978	1,100	Fair
240TH St over Maquoketa River	2011	1,080	Good
220 St over Br Robinson Creek	1922	1,061	Poor
X 35 (270TH Ave) over US 20	1987	1,041	Fair
180TH Ave over Lindsey Creek	2000	1,030	Fair
Ia 38 over Allison Creek	1956	1,030	Fair
Ia 38 over Plum Creek	1992	1,030	Good
Ia 38 over Sand Creek	1974	1,030	Fair
Local 180 Ave over Honey Creek	1984	1,030	Good
FM 145 Ave over Small Stream	1970	1,021	Fair
210TH Street over Plum Creek	2004	962	Good
FM 197 Ave over Small Stream	1967	962	Poor
FM - 180TH Ave over Sand Creek	1981	960	Good
FM - 180TH Ave over Small Stream	1973	960	Good
S 3RD St over US 20	1974	959	Fair
FM 220 Ave over Maquoketa River	2008	894	Good
Richland St over Maquoketa River	2005	879	Good
FM 195 St over Honey Creek	1980	835	Fair
FM 195 St over Maquoketa River	1969	835	Fair
FM 195TH St over Stream	2005	835	Good
FM 130 Ave over Sandhagen Creek	1965	825	Poor
FM 165 St over Small Stream	1970	825	Fair
Ia 3 over Elk Creek	1987	760	Fair
Ia 3 over Pine Creek	1932	760	Fair
Ia 3 over Spring Creek	1987	760	Good
Marion St-275 A over Maquoketa River	2003	681	Good
Marion St-275 A over Maquoketa River	2003	681	Good
FM 150 St over Small Creek	1986	589	Good
FM 150 St over Small Stream	1986	589	Good
FM 200 Ave over Honey Creek	1998	570	Fair
FM 315TH St over Lime Creek	1978	530	Fair
Local Floyd Rd over Bear Creek	1987	501	Good
X47 300TH Ave over Branch of Bear Creek	2009	470	Good
FM - 160TH St over Small Stream	1979	462	Fair
FM 160TH St over Bear Creek	1994	462	Fair
FM 272ND St over N Fork Maquoketa River	1999	462	Good
FM 300 Ave over Bear Creek	1960	462	Fair
FM 110TH Ave over Buffalo Creek	1977	403	Fair
FM 245TH Ave over Small Stream	2008	390	Good
FM 230 Ave over Small Stream	1963	383	Fair
FM 230TH Ave over Buck Creek	1963	383	Fair
W63 100TH Ave over U.S. 20	1970	373	Fair
FM 150 St over Honey Creek	1949	363	Fair
FM 162 Ave over Stream	2004	363	Good
FM 190TH St over Reiger Creek	2009	363	Good
FM 150 St over Lindsey Creek	1991	344	Fair
FM 255TH St over Small Stream	1959	344	Fair
FM 110TH Ave over Robinson Creek	2008	334	Good
FM 110TH Ave over Small Stream	2006	334	Good
W63 110TH Ave over Robinson Creek	2021	334	Good
FM 300TH St over Small Stream	1978	324	Fair
FM 110TH Ave over Buffalo Creek	1968	314	Fair
205 Ave over Spring Creek	1975	295	Fair
205 Ave over Spring Creek	1975	295	Fair
205 Ave over Spring Creek	1975	295	Fair
FM 165TH St over Maquoketa River	1994	295	Good
170TH St over Plum Creek	1949	275	Poor
FM 270 Ave over Plum Creek	1969	275	Fair
FM 270 Ave over Small Stream	1970	275	Fair
FM Honey Ck Rd over Small Stream	1957	275	Good
262ND Ave over Small Stream	2005	236	Fair
FM 260TH Ave over Penns Branch	1995	236	Good
267TH St over Turtle Creek	2014	226	Good
FM 110TH Ave over Robinson Creek	1967	216	Fair
FM Goose Hill over Small Stream	2007	216	Good
Loc 310TH Ave over Bear Creek	2007	207	Good
FM 110 Ave over Prairie Creek	1986	206	Fair
FM 110 Ave over Spring Branch	1992	206	Good
FM 190 Ave over Buck Creek	1969	157	Fair
FM 190 Ave over Small Stream	1968	157	Fair
Loc 400TH St over Maquoketa River	1986	157	Good
Local 221 St over Spring Branch	1982	137	Good
Local 218 St over Stream	1970	120	Fair
218TH St over Plum Creek	2012	118	Good
FM Rockville Rd over Maquoketa River	1953	118	Fair
180TH Ave over Lindsey Creek	2004	108	Good
FM 110 Ave over S Fork Maquoketa River	1969	108	Fair
FM 230TH Ave over Maquoketa River	1934	108	Fair
FM 280 Ave over Small Stream	1962	98	Fair
W69 140TH Ave over US 20	1970	98	Good
170TH Ave over Small Stream	1992	97	Fair
Loc 333RD Ave over Small Stream	1976	97	Fair
Loc Stagecoach over Prairie Creek	1949	97	Fair
Local 180TH Ave over Small Stream	1945	97	Fair
Local Pheasant over Small Stream	1973	97	Poor
240TH St over Stream	2021	90	Good
Local 330 Ave over Small Stream	1983	90	Good
310TH Ave over Stream	2014	88	Good
FM 140TH Ave over Small Stream	1900	88	Fair
FM 220 Ave over Lime Creek	1989	88	Good
Local 120 St over Small Stream	1971	88	Fair
Local 145 St over Small Stream	1990	88	Good
Local 240 St over Sand Creek	1985	88	Fair
FM 170 St over Small Stream	1955	79	Poor
FM 240 St over Small Stream	1965	79	Fair
FM 240 St over Stream	1930	79	Poor
FM 280 Ave over Small Stream	1973	79	Poor
Local 255 St over Small Stream	1968	79	Fair
298TH Ave over Plum Creek	2005	78	Good
Loc 285 Ave over Small Stream	1977	78	Fair
Local 145 St over Bear Creek	1976	78	Fair
Local 310 Ave over Stream	1966	78	Fair
180TH St over Honey Creek	2005	70	Good
195TH St over Stream	2019	70	Good
250TH St over Small Stream	1991	70	Fair
265TH St over Stream	2016	70	Fair
Local 190 St over Plum Creek	1996	70	Good
Local 200 Ave over Small Stream	1966	70	Fair
Local 330 St over Small Stream	1965	70	Fair
Local over Buck Creek	1983	70	Fair
FM 140TH Ave over Small Stream	1972	69	Poor
FM 180TH St over Small Stream	1978	69	Fair
FM 240 St over Stream	1965	69	Fair
FM 295TH St over Maquoketa River	1985	69	Good
Loc Firefly Rd over Stream	1935	69	Fair
182ND St over Bear Creek	2016	59	Good
195TH St over Stream	2019	59	Good
220TH Ave over US 20	1973	59	Good
300TH St over Small Stream	1930	59	Poor
FM - 175TH St over Small Stream	1955	59	Fair
FM 182ND St over Small Stream	1991	59	Fair
Loc Candle Rd over Prairie Creek	1950	59	Fair
Loc Firefly Rd over Small Stream	1986	59	Fair
Local 165 St over Honey Creek	1983	59	Fair
Local 165 St over Lindsey Creek	1983	59	Fair
Local 260 Ave over Small Stream	2001	59	Good
Local Buch-del over S Fork Maquoketa River	1997	59	Good
Local Linn-del over Stream	1975	59	Fair
Local Oak Rd over Stream	1965	59	Fair
Nature Rd over Odell Branch	1939	59	Fair
Oak Rd over Odell Branch	1964	59	Fair
Oak Rd over Stream	1978	59	Fair
Rainbow Rd over Odell Branch	1990	59	Good
Local 230 St over Plum Creek	1991	50	Good
155TH St over Small Stream	1983	49	Fair
220TH Ave over Buck Creek	2017	49	Good
220TH Avenue over Small Stream	2003	49	Good
310TH Ave over Stream	2013	49	Good
310TH St over Robinson Creek	2000	49	Good
FM 140TH Ave over Sand Creek	2011	49	Good
FM 310TH St over Buffalo Creek	1985	49	Good
Loc 155TH St over Small Stream	1982	49	Fair
Loc 270 Ave over Penns Creek	1983	49	Fair
Loc 302 St over Small Stream	1984	49	Fair
Loc 302 St over Small Stream	1964	49	Fair
Loc Quarter Rd over Maquoketa River	1996	49	Good
Loc Sherwood Rd over Plum Creek	1993	49	Good
Loc Sherwood Rd over Small Stream	1970	49	Fair
Local 200 Ave over Small Stream	1967	49	Fair
Pioneer Rd over Small Stream	2019	49	Good
Walnut St 280TH over Stream	1997	49	Good
130TH St over Unnamed Stream	2022	45	Good
137TH St over Small Stream	2015	44	Good
137TH St over Small Stream	1939	44	Fair
197TH St over Small Stream	2015	44	Good
210TH Ave over Small Stream	1978	44	Fair
221ST St over Small Stream	2007	44	Good
FM - 180TH St over Small Stream	1976	44	Fair
FM Ridge Rd over Allison Creek	2003	44	Fair
Jet Rd over Stream	1969	44	Fair
Loc 130TH Ave over Stream	1988	44	Good
Loc 150TH St over Sandhagen Creek	1976	44	Fair
Local 120 Ave over Buffalo Creek	2003	44	Good
Local 120 Ave over Buffalo Creek Overflow	2003	44	Fair
Local 137 St over Small Stream	1939	44	Fair
Local 265 St over Plum Creek	1979	44	Good
Loc 130TH Ave over Stream	1970	42	Poor
300TH Ave over Stream	2021	40	Good
170TH Ave over Sand Creek	1953	39	Poor
190TH Ave over Honey Creek	2012	39	Good
FM 245 St over Plum Creek	1977	39	Good
FM Sherwood Rd over Small Stream	2011	39	Fair
Loc 110TH Ave over Stream	1989	39	Fair
Loc 150TH Ave over Small Stream	1981	39	Fair
Loc 215TH St over Stream	1940	39	Fair
Loc 225 St over Small Stream	1996	39	Good
Loc 225 St over Small Stream	1984	39	Fair
Loc 230TH St over Stream	1992	39	Fair
Loc 285 Ave over Plum Creek	1991	39	Good
Local 280 Ave over Plum Creek	1989	39	Good
Local 280 Ave over Plum Creek	1974	39	Fair
Local 295 St over Small Stream	1987	39	Fair
Local Dove Rd over Stream	1990	39	Fair
FM Thunder Rd over Plum Creek	1993	34	Good
Loc Ivy Rd over Br Little York	1951	34	Fair
300TH Ave over Stream	2015	33	Fair
Loc 200TH St over Spring Branch	1989	33	Fair
Loc 325TH St over Small Stream	2001	33	Fair
Loc Buc-del Ave over Spring Branch Creek	1983	33	Fair
Local 280 Ave over Small Stream	1991	33	Good
Local 280 St over Robinson Creek	1981	33	Fair
Local 330 St over Small Stream	1966	33	Fair
140TH St over Honey Creek	1925	30	Fair
Local 320 Ave over Cooksley Creek	1989	30	Fair
140TH St over Lindsey Creek	2003	29	Good
140TH St over Stream	1972	29	Poor
155TH St over Honey Creek	1983	29	Good
200TH Ave over Honey Creek	1983	29	Good
245TH Ave over Penns Branch	2018	29	Good
255TH Ave over Plum Creek	2013	29	Good
FM 210TH Ave over Small Stream	1984	29	Fair
Loc 160 St over Small Stream	1980	29	Fair
Loc 207TH St over Stream	1977	29	Fair
Loc 255TH Ave over Br Almoral CR	1989	29	Fair
Loc 285 St over Small Stream	1966	29	Fair
Loc 333 Ave over Stream	1975	29	Poor
Local 125 Ave over Small Stream	1990	29	Fair
Local 190 St over Stream	1969	29	Fair
Rainbow Rd over Elk Creek	2004	29	Good
120TH St over Stream	1985	26	Fair
285TH St over Silver Creek	2021	26	Good
325TH St over Small Stream	2020	26	Good
Loc 120TH Ave over Stream	1977	26	Fair
Local 205TH Ave over Buck Creek	1995	26	Good
Local 220 Ave over Stream	1967	26	Poor
Local 245 St over Stream	1920	26	Fair
Local 320 St over Small Stream	1993	26	Fair
Local 325 St over Stream	1975	26	Fair
Nature Rd over Small Stream	1940	26	Fair
FM 210 Ave over Stream	1987	25	Fair
150TH Ave over Unamed Creek	2009	20	Good
190TH Ave over Lindsey Creek	1920	20	Poor
215TH Ave over Small Stream	2004	20	Good
260TH Ave over Plum Creek	1981	20	Good
330TH St over Stream	2021	20	Good
FM 220 Ave over Small	1980	20	Fair
Loc 122 St over Lindsey Creek	1981	20	Fair
Loc 235TH St over Stream	2006	20	Good
Loc 320 Ave over Small Stream	1971	20	Poor
Local 170 Ave over Small Stream	1970	20	Fair
Local 185 St over Plum Creek	1986	20	Fair
Local 297 St over Small Stream	1993	20	Good
Rainbow Rd over Small Stream	2004	20	Good
265TH Ave over Plum Creek	2012	15	Good
297TH St over Buck Creek	1999	15	Good
335TH St over Small Stream	1988	15	Fair
John St over Prairie Creek	1928	15	Fair
Loc 275TH St over Stream	1975	15	Poor
Local 290 Ave over Small Stream	1992	15	Fair
Local 320TH St. over Small Stream	1995	15	Fair
200TH St over Small Stream	2013	11	Good
210TH Ave over Small Stream	1994	11	Fair
231ST Ave over Small Stream	2013	11	Good
Local 130 Ave over Small Stream	1967	11	Fair
Local 210 Ave over Small Stream	1965	11	Fair
Local 215 Ave over Small Stream	1965	11	Poor
140TH St over Stream	1968	5	Fair
Local 120 Ave over Small Stream	1982	5	Fair
Backbone St Pk over Maquoketa River	1934	–	Fair
Backbone St Pk over Maquoketa River	1989	–	Good
Backbone St Pk over Maquoketa River	1976	–	Fair
Backbone St Pk over Stream	1934	–	Fair
Backbone St Pk over Stream	1935	–	Fair
Backbone State Pk over Br Maquoketa River	1976	–	Fair
Fish Hatchery over Stream	1994	–	Good

Source: FHWA National Bridge Inventory, 2025.

Delaware County bridge conditions · Iowa bridges by county.

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