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Every bridge in Story County, Iowa

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

302 inventoried bridges, busiest first

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

Story County, Iowa, has 302 bridges in the 2025 National Bridge Inventory: 102 rated good, 160 fair, and 40 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
I 35 over South Skunk Rvr Overflow	2017	48,300	Good
I-35 over Ballard Creek	1964	48,300	Fair
I-35 over Walnut Creek	1964	48,300	Fair
I-35 over Drainage Ditch	1967	28,300	Good
US 69 over Ioway Creek	1924	24,600	Good
I 35 NB over South Skunk River	2018	24,150	Good
NB I-35 over Bike Path	1964	24,150	Fair
US 30 over Worrell Creek	1971	23,700	Good
I 35 SB over South Skunk River	2017	23,300	Good
SB I-35 over Bike Path	1964	23,300	Fair
NB I-35 over over UP RR	1966	18,450	Fair
SB I-35 over over UP RR	1966	18,000	Fair
WB US 30 over South Skunk River	1963	16,300	Fair
I 35 SB over US 30	1964	15,950	Fair
NB I-35 over Bear Creek	1967	15,800	Fair
EB US 30 over South Skunk River	1963	15,600	Fair
Stange Rd(isu) over Ioway Creek (stange)	1965	15,397	Good
SB I-35 over Bear Creek	1967	15,250	Fair
WB US 30 over Bike Path & Trail	1971	15,200	Fair
NB I-35 over Long Dick Creek	1967	15,050	Fair
I 35 NB over US 30	1964	15,000	Fair
SB I-35 over Long Dick Creek	1967	14,850	Fair
I-35 NB over 13TH St	1966	14,250	Fair
US 30 over Richards Creek	1963	14,000	Good
I 35 SB over 13TH St	1966	13,200	Fair
E 13TH St over Skunk River	1968	13,164	Fair
S 4TH St over Ioway Creek	1970	11,666	Fair
EB US 30 over Bike Path & Trail	1971	11,500	Fair
WB US 30 over US 69	1963	10,600	Fair
Dayton Ave over UPRR	2002	10,233	Good
EB US 30 over US 69 & Bike Path	1963	9,850	Fair
S 16TH St (isu) over Worrell Creek	1974	9,754	Good
WB US 30 over Univeristy Blvd	1971	9,600	Fair
13TH St over Ioway Creek (13TH)	1974	9,563	Good
E Lincoln Way over Skunk River	1952	9,468	Fair
US 30 over Dye Creek	1963	9,400	Good
University Blvd over Worrell Creek	1960	9,181	Fair
South 16TH Street over Creek	1994	9,121	Good
EB US 30 over University Blvd	1971	8,900	Fair
WB US 30 over Grant Creek	1991	8,450	Good
Lincoln Way over Ioway Creek	1957	8,224	Poor
EB US 30 over Grant Creek	1964	8,100	Fair
EB US 30 over over UP RR	1963	7,900	Fair
I 35 Fly over Ramp over I 35 & US 30	2019	7,700	Good
Hyland Ave over Clear Creek	1984	7,253	Good
S Dakota R38 SB over US 30	2001	6,881	Good
WB US 30 over over UP RR	1963	6,750	Fair
Lincoln Hwy over W Br Indian Creek	2000	6,241	Good
WB US 30 over W Branch Indian Creek	1963	6,100	Fair
EB US 30 over W.branch Indian Creek	1963	6,050	Fair
Broad St over Skunk River	1996	5,834	Good
Lincoln Way over I-35	1966	5,642	Fair
Lincoln Way over over UP RR	1984	5,377	Fair
S Dayton Ave over US 30	1994	5,164	Fair
Beach Road over College Creek	1973	4,878	Good
SE 16TH St over Skunk River	2007	4,878	Good
US 69 over Keigley Branch	2016	4,850	Good
US 30 WB over East Indian Creek	1997	4,750	Good
US 30 EB over East Indian Creek	1963	4,700	Fair
R 38/510TH Ave over Walnut Creek	2010	4,647	Fair
R38/S Dakota Av over Worrell Creek	2010	4,647	Good
Ia 210 over I-35	1964	4,220	Fair
E18/130TH St over Skunk River	2000	4,209	Good
19TH St over US 30	1995	4,109	Good
S Grand Ave over Ioway Creek	2021	4,085	Good
S Grand Ave over Overflow Channel	2021	4,085	Good
E15 115TH St over I-35	1965	4,079	Fair
SR E-18 over I-35	1967	4,079	Fair
6TH St over Ioway Creek	2016	3,863	Good
6TH St over over UPRR	1966	3,863	Fair
E26/C.S. Rd over Ioway Creek	1982	3,640	Fair
W Riverside Rd over Skunk River	1989	3,301	Fair
Main St over US 69 (grand Ave.)	1938	2,986	Fair
R38 500TH Ave over Clear Creek	1969	2,712	Fair
E18 W Maple St over Bear Creek	2021	2,533	Good
SR R38 over US 30	1971	2,493	Fair
R38/500TH Ave over Onion Creek	1970	2,404	Fair
520TH Ave over Worrell Creek	1966	2,324	Fair
State Ave over US 30	1971	2,229	Fair
US 65 over Drainage Ditch	1987	2,110	Good
US 65 over Dye Creek	1979	2,110	Good
US 65 over US 30	1963	2,090	Fair
11TH St over US 30	1995	1,997	Good
US 65 over Minerva Creek	2001	1,930	Good
Ia 210 over Calamus Creek	1954	1,920	Fair
Ia 210 over South Skunk River	1988	1,920	Good
Ia 210 over over UP RR	1939	1,920	Fair
6TH St over West Indian Creek	1964	1,850	Fair
E29 190TH St over I-35	1966	1,845	Fair
US 30 WB to I35 NB over Drainage Ditch	1964	1,780	Fair
Ia 210 over Indian Creek	2003	1,660	Good
Mathews St over Drainage Ditch #70	1969	1,626	Fair
R38/500TH Ave over Ioway Creek	1976	1,496	Fair
R70 580TH Ave over US 30	2024	1,490	Good
US 65 over Stream	1990	1,440	Good
E 18 (130TH St) over Hamilton-story 1 Open Dd	2012	1,427	Good
E18/130TH St over Keigley Branch	1967	1,427	Fair
I35 NB to US 30 EB over Drainage Ditch	2017	1,420	Good
Ia 210 over Rock Creek	1974	1,400	Good
650TH Ave over East Br Indian Creek	1976	1,228	Fair
650TH Ave over Rupple Creek	1971	1,228	Fair
E29/190TH St over West Br Indian Creek	2005	1,217	Good
N Dakota Ave over Onion Creek	2014	1,197	Good
E63 315TH St over I-35	1964	1,148	Fair
170TH St over Small	2006	1,137	Fair
W 4TH St over West Br Indian Creek	1998	1,119	Fair
E41 Lincoln Hwy over Dye Creek	2001	1,050	Fair
E41/LINCOLN Hwy over E Br Indian CR & RR	1973	1,050	Fair
180TH ST/E29 over Richland 81 Open Ditch	2009	1,028	Fair
E15/115TH St over Long Dick Creek	1964	1,028	Poor
620TH AVE/S14 over Grant Open Ditch Ext 5	1977	988	Fair
S14 620TH Ave over Calamus Creek	2023	988	Good
E18 130TH St over East Indian Creek	2021	957	Good
R77/600TH Ave over Bear Creek	2003	948	Good
580TH Ave over Drainage Ditch	1989	820	Good
580TH Ave over Small Stream	1987	820	Good
R70/580TH Ave over Ballard Creek	1989	820	Good
R70/580TH Ave over Drainage Ditch	1989	820	Good
R70/580TH Ave over Skunk River	1989	820	Fair
R70/580TH Ave over Small Stream	1987	820	Fair
R70/580TH Ave over Union 118 Wire Lk Outlt	1989	820	Good
Ia 210 over Branch Wolf Creek	1993	760	Fair
S14 over US 30	2024	752	Good
190TH ST/E29 over Dye Creek	1973	669	Fair
190TH ST/E29 over East Br Indian Creek	1963	669	Good
E18/130TH St over Middle Minerva Creek	1973	638	Fair
190TH St over Dd 70	2017	578	Good
E Ave over W Br Indian Creek	1967	555	Fair
Garnet Dr over Flood Channel	1975	555	Fair
S27/650TH Ave over Calamus Creek	1962	540	Fair
8TH St over W Br Indian Creek	1936	535	Poor
Minnesota Ave over over UPRR	1980	488	Fair
Center St over Middle Minerva Creek	1974	435	Fair
527/660TH Ave over East Br Indian Creek	1962	429	Fair
South Pearl St over Middle Minerva Creek	2021	383	Good
Lincoln Hwy over US 65	1938	364	Fair
680TH Ave over Dye Creek	1967	319	Fair
680TH Ave over Dye Creek	1967	319	Fair
Arrasmith Trl over D D	1996	319	Fair
595TH Ave over Skunk River	2002	290	Good
4TH St over Walnut Creek	1974	278	Fair
560TH Ave over Small Stream	1994	259	Good
590TH Ave over Grant 5 Open Ditch	1938	230	Poor
R 63 (180TH St) over Skunk River	2011	219	Good
South S Ave over West Br Indian Creek	2004	219	Good
325TH St over Rock Creek	1929	190	Fair
325TH St over Rock Creek Overflow	1953	190	Poor
110TH St over Keigley Branch	1978	170	Fair
500TH Ave over US 30	1971	170	Good
Dunn Street over Drainage Ditch #70	1969	170	Good
670TH Ave over Small Stream	1953	150	Fair
170TH St over Skunk River	1939	139	Fair
290TH St over I-35	1964	139	Fair
E23 170TH St over I-35	1967	139	Good
West T Ave over West Br Indian Creek	1997	139	Fair
280TH St over Grant 5 Open Ditch Ext	1916	131	Poor
280TH St over West Br Indian Creek	2015	131	Good
295TH St over East Br Indian Creek	2014	131	Good
E63/730TH Ave over Willow Creek	1972	131	Fair
115TH St over Bear Creek	1955	120	Poor
190TH St over Ioway Creek	1900	120	Poor
290TH St over Drainage Ditch	2019	120	Good
E23 170TH St over Keigley Branch	2013	120	Good
E57 260TH St over Grant #5 Open Ditch	2016	120	Good
Sand Hill Trail over Wilcox Creek	2018	120	Good
150TH St over Hamilton-story 1 Open	1967	110	Fair
550TH Ave over Ballard Creek	1950	110	Fair
570TH Ave over Ballard Creek	2020	110	Good
670TH Ave over Hickory Grove Lk Outlet	1965	110	Fair
Second St over Indian Creek	1963	105	Fair
150TH St over Keigley Branch	1977	100	Good
150TH St over Skunk River	1920	100	Poor
300TH St over Small Stream	1963	100	Fair
300TH St over Small Stream	2019	100	Good
310TH St over Ballard Creek	1936	100	Fair
550TH Ave over Ballard Creek	1919	100	Fair
660TH Ave over Rock Creek	2016	100	Good
210TH St over West Br Indian Creek	1998	90	Good
310TH St over Drainage	1951	90	Poor
E63 305TH St over Calamus Creek	2016	90	Good
250TH St over East Indian Creek	2015	80	Good
260TH St over East Br Indian Creek	1912	80	Fair
270TH St over West Br Indian Creek	1967	80	Fair
282ND St over Walnut Creek	2002	80	Good
290TH St over Old Skunk River Channel	1937	80	Fair
305TH St over Indian Creek	2005	80	Good
320TH St over Skunk River	1949	80	Fair
335TH St over Wolf Creek	1967	80	Fair
520TH Ave over Walnut Creek	1900	80	Fair
550TH Ave over Hamilton-story 1 Open Dd	2015	80	Good
550TH Ave over Keigley Branch	1913	80	Fair
567TH Ave over Long Dick Creek	1911	80	Fair
150TH St over I-35	1967	71	Good
248TH St over Dye Creek	1980	71	Good
564TH Ave over Walnut Creek	1995	71	Good
663RD Ave over Small Stream	2011	71	Good
180TH St over Ioway Creek	1995	60	Good
250TH St over Grant 5 Open Ditch	1960	60	Fair
280TH St over Skunk River	1929	60	Poor
535TH Ave over Ballard Creek	1920	60	Poor
590TH Ave over Bear Creek	1970	60	Fair
590TH Ave over Long Dick Creek	1975	60	Fair
632ND Ave over Stream	1973	60	Poor
632ND Ave over West Br Indian Creek	1938	60	Poor
650TH Ave over East Br Indian Creek	1922	60	Poor
710TH Ave over Hardin-story Dd I	1947	60	Fair
710TH Ave over Middle Minerva Creek	1953	60	Poor
580TH Ave over Long Dick Creek	1964	51	Poor
120TH St over Hamilton-story 1 Open Dd	1940	50	Fair
120TH St over Keigley Branch	1968	50	Fair
150TH St over Bear Creek	1985	50	Fair
260TH St over Drainage Ditch 13	1968	50	Fair
310TH St over Ballard Creek	1970	50	Fair
530TH Ave over Ballard Creek	1953	50	Poor
560TH Ave over Walnut Creek	1915	50	Fair
578TH Ave over Coon Creek	2023	50	Good
610TH Ave over Grant 5 Open Ditch	1941	50	Fair
E 57 265TH St over Skunk River	2005	50	Good
E57 260TH St over I 35	2017	50	Good
100TH St over Long Dick Creek	1956	45	Fair
100TH St over Long Dick Creek	1955	45	Fair
100TH St over Long Dick Creek	1955	45	Fair
220TH St over Walnut Creek	1951	45	Fair
590TH Ave over Ovrflw of Milford 13	2017	45	Good
610TH Ave over Dd 32	1900	45	Fair
640TH Ave over Calamus Creek	1938	45	Poor
640TH Ave over West Br Indian Creek	1919	45	Fair
660TH Ave over Dd 81 Richland	2016	45	Good
690TH Ave over Dye Creek	1998	45	Fair
Pleasant Valley over Bear Creek	1900	45	Fair
180TH St over East Br Indian Creek	1955	41	Fair
200TH St over Dd 81	2000	40	Fair
200TH St over Dye Creek	1950	40	Fair
200TH St over East Br Indian Creek	2000	40	Good
248TH St over East Br Indian Creek	1936	40	Poor
260TH St over Clear Creek	1968	40	Fair
270TH St over Grant 5 Open Ditch	1944	40	Fair
310TH St over Rock Creek	1988	40	Fair
550TH Ave over Small Stream	2022	40	Good
610TH Ave over Bear Creek	1975	40	Fair
730TH Ave over Clear Creek	1931	40	Fair
140TH St over Drainage Ditch	1963	34	Fair
140TH St over Keigley Branch	1977	34	Good
170TH St over Drainage Ditch 36	1969	34	Fair
210TH St over Milford 32 Dd	1900	34	Fair
220TH St over East Br Indian Creek	1900	34	Poor
270TH St over Drainage	1950	34	Fair
325TH St over Small Stream	1905	34	Poor
520TH Ave over Keigley Branch	1949	34	Poor
560TH Ave over Ham-story 1 Open Dd	1924	34	Poor
560TH Ave over Hamilton-story 1 Open Dd	1900	34	Poor
610TH Ave over West Br Indian Creek	1911	34	Fair
100TH St over Small Stream	1917	30	Poor
110TH St over East Br Indian Creek	1968	30	Poor
142ND St over Bear Creek	1900	30	Poor
150TH St over East Br Indian Creek	1950	30	Poor
160TH St over Keigley Branch	1915	30	Fair
170TH St over East Br Indian Creek	1977	30	Good
295TH St over Calamus Creek	1958	30	Fair
315TH St over Drainage Ditch	1964	30	Fair
597TH Ave over Small Stream	1974	30	Poor
730TH Ave over Hardin-story Dd 1	1967	30	Fair
730TH Ave over Marshall-story DD#2	1944	30	Fair
730TH Ave over Minerva Creek	2020	30	Good
210TH St over Dye Creek	2019	26	Good
213TH St over East Br Indian Creek	1925	26	Fair
630TH Ave over East Br Indian Creek	1924	26	Fair
670TH Ave over East Indian Creek	1915	26	Fair
680TH Ave over Dye Creek	1900	26	Fair
730TH Ave over Middle Minerva Creek	1983	26	Good
100TH St over Minerva Creek	2012	20	Good
140TH St over Hamilton-story 1 Open Dd	1935	20	Fair
270TH St over Drainage Ditch 2	1951	20	Poor
280TH St over Marshall-story DD#2	2018	20	Good
530TH Ave over Keigley Branch	1917	20	Fair
675TH Ave over Rock Creek	1911	20	Poor
730TH Ave over Little Minerva Creek	2022	20	Good
S Riverside Drive over Creek	1998	18	Fair
100TH St over Keigley Branch	1900	15	Poor
113TH St over Hardin-story Dd 1	2018	15	Good
120TH St over East Br Indian Creekh	1919	15	Poor
180TH St over West Br Indian Creek	1900	15	Poor
248TH St over Dye Creek	1939	15	Poor
322ND St over Calamus Creek	1916	15	Fair
330TH St over Mud Creek	2021	15	Good
630TH Ave over Calamus Creek	1972	15	Fair
640TH Ave over East Br Indian Creek	2015	15	Fair
720TH Ave over Hardin-story Dd 1	1900	15	Poor
720TH Ave over Willow Creek	1945	15	Fair
No Name SE over Small Stream	1918	15	Poor
120TH St over Hardin-story Dd 1	2018	11	Good
170TH St over Little Minerva Creek	1958	11	Fair
335TH Ln over Small Stream	1953	11	Fair
630TH Ave over East Br Indian Creek	1955	11	Fair
690TH Ave over Middle Minerva Creek	2020	11	Good
710TH Ave over Drainage	1959	11	Fair
720TH Ave over Middle Minerva Creek	1930	11	Fair
Local-dead End over Skunk River	1876	11	Poor
113TH St (fld) over Road Ditch	1900	10	Fair
Field Entrance over Road Ditch	1957	10	Fair
140TH St over East Br Indian Creek	1924	5	Poor
566TH Ave over Walnut Creek	1987	–	Fair

Source: FHWA National Bridge Inventory, 2025.

Story County bridge conditions · Iowa bridges by county.

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