Hamilton County, Iowa bridges

Hamilton County has 165 bridges and culverts in the National Bridge Inventory, the oldest built in 1902. 32 (19%) are rated poor. The most common type is stringer/multi-beam or girder (45%).

Bridges: 165
Good: 37%
Fair: 44%
Poor: 19%; 32 bridges
Average age: 55.4 yrs
Posted or closed: 33

Map of bridges in Hamilton County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in Hamilton County

Type at least two characters, or pick a condition or type, to search every bridge in the county.

Condition

Good37%(61)

Fair44%(72)

Poor19%(32)

When they were built

Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

I 35 over Drainage Ditch
27,200 vehicles/day
Fair
I 35 over Stream
26,900 vehicles/day
Good
I-35 over Tuttle Creek
17,400 vehicles/day
Fair
I-35 over Drainage Ditch 23 & 31
16,600 vehicles/day
Good
I 35 NB over Ia 175
11,850 vehicles/day
Fair

Longest

280th ST over Boone River
457 ft
Good
FM over Boone River
390 ft
Fair
Dubuque ST over Boone River
344 ft
Fair
Des Moines ST over Boone River
343 ft
Fair
Ia 17 over Boone River
326 ft
Fair

Oldest

280th ST over Boone River
Built 1902
Poor
Inkpaduta Ave over Boone River
Built 1907
Poor
Local over Long Dick CR
Built 1916
Poor
Local over Ioway Creek
Built 1917
Poor
Local over Creek
Built 1918
Poor

All bridges in Hamilton County

Busiest first · showing 1–165 of 165

Bridges in Hamilton County
Bridge	Location	Built	Type	Length	Daily traffic	Condition
I 35 over Drainage Ditch No. 000000000604870	0.8 Mile S of JCT Ia 175	1966	Culvert	24 ft	27,200	Fair
I 35 over Stream No. 000000000605610	0.3 Mile North of SR D65	1965	Culvert	24 ft	26,900	Good
I-35 over Tuttle Creek No. 000000000026760	0.2 Mile N of JCT US 20	1967	Culvert	26 ft	17,400	Fair
I-35 over Drainage Ditch 23 & 31 No. 000000000603890	1.0 Mile N of JCT SR D20	1972	Culvert	21 ft	16,600	Good
I 35 NB over Ia 175 No. 000000000026690	At Junction With Ia 175	1966	Stringer/Multi-beam or Girder	252 ft	11,850	Fair
I 35 SB over Ia 175 No. 000000000026700	At Junction With Ia 175	1966	Stringer/Multi-beam or Girder	252 ft	11,850	Fair
US 20 & Ia 17 over Waterway No. 000000000604330	2.1 MI E of W JCT Ia 17	1977	Culvert	21 ft	11,200	Fair
US 20 over Drainage Ditch #4 No. 000000000026590	0.7 Mile E of JCT US 69	1968	Culvert	25 ft	9,600	Good
US 20 over Drainage Ditch #4 No. 000000000026600	1.8 Miles East of US 69	1968	Culvert	25 ft	9,600	Fair
US 20 over Drainage Ditch #4 No. 000000000026610	1.8 Miles East of US 69	1968	Culvert	28 ft	9,600	Good
US 20 over Tuttle D.D.#4 No. 000000000026630	0.3 Miles W of JCT I-35	1968	Culvert	25 ft	9,400	Good
NB I-35 over Cc RR & 210th ST No. 000000000602550	1.1 MI N of SR D25	1972	Stringer/Multi-beam or Girder	265 ft	8,800	Good
SB I-35 over Cc RR & 210th ST No. 000000000602560	1.1 Miles North of SR D25	1972	Stringer/Multi-beam or Girder	265 ft	8,500	Fair
I 35 NB over Stream No. 000000000602570	1.8 Miles N of Sec RD D20	1972	Slab	93 ft	8,300	Fair
NB I-35 over CO RD D-25 No. 000000000602530	At Junction With SR D25	1974	Slab	143 ft	8,250	Fair
SB I-35 over Stream No. 000000000602580	1.8 Miles N of Sec RD D20	1972	Slab	93 ft	8,200	Fair
I 35 SB over SR D25 No. 000000000602540	At Junction With SR D25	1974	Slab	143 ft	7,950	Fair
Ia 17 over US 20 No. 000000000026465	At East Junction US 20	1974	Stringer/Multi-beam or Girder	268 ft	6,170	Good
Superior ST over Brewers Creek No. 000000000026470	000000000	1923	Culvert	134 ft	5,839	Fair
EB 20 & SB 17 over R-27 No. 000000000603680	0.8 MI W of E JCT Ia 17	1978	Stringer/Multi-beam or Girder	142 ft	5,500	Fair
WB 20 & NB 17 over R-27 No. 000000000603682	0.8 MI W of E JCT Ia 17	1978	Stringer/Multi-beam or Girder	142 ft	5,500	Good
EB US 20 over Boone River No. 000000000603340	1.2 MI E of E JCT Ia 17	1974	Stringer/Multi-beam or Girder	325 ft	5,050	Fair
WB US 20 over Boone River/Rec Trail No. 000000000603345	1.2 MI E of E JCT Ia 17	1974	Stringer/Multi-beam or Girder	325 ft	5,050	Fair
EB US 20 over R-38 No. 000000000603360	At Junction With SR R38	1975	Stringer/Multi-beam or Girder	138 ft	4,950	Fair
WB US 20 over R-38 No. 000000000603365	At Junction With SR R38	1975	Stringer/Multi-beam or Girder	138 ft	4,950	Fair
EB US 20 over I-35 No. 000000000026640	At JCT Interstate 35	1968	Stringer/Multi-beam or Girder	261 ft	4,700	Fair
2nd ST over Boone River No. 000000000026370	000000000	1950	Stringer/Multi-beam or Girder	294 ft	3,797	Fair
Ia 17 over Boone River No. 000000000026455	1.3 Miles S of JCT US 20	1972	Stringer/Multi-beam or Girder	326 ft	3,460	Fair
Overpass DR over Cc RR No. 000000000026350	000000000	1931	Stringer/Multi-beam or Girder	208 ft	3,353	Fair
WB US 20 over I-35 No. 000000000026650	At JCT Interstate 35	1968	Stringer/Multi-beam or Girder	261 ft	3,350	Fair
Des Moines ST over Brewer Creek No. 000000000012291	000000000	1989	Stringer/Multi-beam or Girder	44 ft	3,175	Fair
220th ST over Drainage Ditch No. 000000000026341	089263505	2010	Stringer/Multi-beam or Girder	79 ft	2,892	Good
2nd ST over Lyon Creek No. 000000000026381	000000000	1978	Slab	90 ft	2,735	Fair
Ia 17 over Ioway Creek No. 000000000026451	0.9 Mile S of JCT SR D65	1979	Slab	133 ft	2,380	Fair
Ia 175 over Long Dick Creek No. 000000000026570	1.7 Miles E of JCT I-35	1937	Culvert	23 ft	2,180	Fair
Ia 175 over Drainage Ditch No. 000000000026521	0.2 Mi. E of E Jct. US 69	1977	Slab	103 ft	2,100	Fair
Ia 175 over UP RR No. 000000000026531	0.5 Mile E of E JCT US 69	1979	Stringer/Multi-beam or Girder	188 ft	2,100	Good
Ia 175 over S Skunk River No. 000000000026541	1.0 Mile West of JCT I-35	1979	Stringer/Multi-beam or Girder	192 ft	1,920	Fair
Beach ST over Brewers Creek No. 000000000171961	088261204	1995	Slab	78 ft	1,745	Good
Dubuque ST over Boone River No. 000000000012270	000000000	1954	Stringer/Multi-beam or Girder	344 ft	1,695	Fair
US 69 over Drainage Ditch No. 000000000026421	0.5 Mi. N of N Jct. 175	2009	Slab	114 ft	1,620	Fair
White Fox RD over Boone River No. 000000000012331	000000000	1982	Stringer/Multi-beam or Girder	325 ft	1,282	Good
US 69 over US 20 No. 000000000026430	At US 20 / US 69 Junction	1968	Stringer/Multi-beam or Girder	219 ft	1,230	Good
US 69 over Cc RR No. 000000000026445	0.8 Mile N of JCT SR D25	1973	Stringer/Multi-beam or Girder	171 ft	1,160	Fair
SR D-65 over I-35 No. 000000000026670	At Junction With I-35	1965	Stringer/Multi-beam or Girder	222 ft	1,117	Fair
Ia 175 over Ioway Creek No. 000000000026491	1.0 Miles W of Sec RD R27	1972	Stringer/Multi-beam or Girder	75 ft	1,090	Fair
Des Moines ST over Boone River No. 000000000012300	000000000	1954	Stringer/Multi-beam or Girder	343 ft	1,065	Fair
SR D-20 over I-35 No. 000000000602555	At Junction With D20	1972	Stringer/Multi-beam or Girder	292 ft	828	Fair
380th ST over Long Dick Creek No. 000000000170741	086232701	2000	Culvert	21 ft	797	Good
FM over Skunk River No. 000000000170861	086242503	1974	Stringer/Multi-beam or Girder	151 ft	698	Poor
Ia 17 over US 20 No. 000000000603670	At North JCT With US 20	1978	Stringer/Multi-beam or Girder	258 ft	650	Good
FM over Keigley Creek No. 000000000171001	086252501	1999	Culvert	30 ft	589	Good
Vail Ave over Over Cc RR No. 000000000026390	089232704	1932	Stringer/Multi-beam or Girder	157 ft	578	Poor
FM over Long Dick Creek No. 000000000170761	086233504	1997	Stringer/Multi-beam or Girder	62 ft	559	Good
FM over Long Dick Creek No. 000000000170771	086233504	1997	Culvert	25 ft	559	Good
FM over Ioway Creek No. 000000000171091	086262202	1982	Culvert	23 ft	559	Fair
FM over Drainage Ditch No. 000000000171495	087253601	1976	Culvert	22 ft	509	Fair
FM over Boone River No. 000000000172451	089260104	2009	Stringer/Multi-beam or Girder	313 ft	509	Good
FM over Boone River No. 000000000172410	089253101	1964	Girder and Floorbeam System	308 ft	499	Fair
Park Ave over Lyons Creek No. 000000000012340	000000000	1947	Stringer/Multi-beam or Girder	45 ft	490	Poor
FAS 3556 over Creek No. 000000000170650	086230602	1947	Culvert	30 ft	478	Poor
FM over Boone River No. 000000000171570	087263010	1939	Stringer/Multi-beam or Girder	296 ft	478	Fair
FM over Skunk River No. 000000000170911	086243603	1992	Slab	138 ft	459	Poor
FM over Boone River No. 000000000171531	087261406	1973	Girder and Floorbeam System	390 ft	429	Fair
SR D-41 over I-35 No. 000000000026720	3.5 Miles S of JCT US 20	1966	Stringer/Multi-beam or Girder	218 ft	399	Good
E. Ohio ST over Brewer Creek No. 000000000012261	000000000	1996	Stringer/Multi-beam or Girder	58 ft	393	Good
Local over Drainage Ditch No. 000000000171371	087242801	2006	Stringer/Multi-beam or Girder	118 ft	379	Good
Willson Ave over Brewer Creek No. 000000000012310	000000000	1920	Stringer/Multi-beam or Girder	45 ft	377	Fair
FM over White Fox Creek No. 000000000172350	089252103	1960	Slab	128 ft	330	Fair
FM over Drainage Ditch No. 000000000172110	089231006	1960	Stringer/Multi-beam or Girder	55 ft	319	Poor
FM RD R 77 over US 20 No. 000000000606185	2.5 Miles E of JCT I-35	1990	Stringer/Multi-beam or Girder	268 ft	290	Good
FM over Skunk River No. 000000000171820	088243601	1962	Stringer/Multi-beam or Girder	62 ft	270	Fair
Kantor Ave over Lyons Creek No. 000000000172431	089253406	2003	Culvert	45 ft	270	Fair
FM over Drainage Ditch No. 000000000171712	088233601	2005	Culvert	23 ft	265	Good
FM over Drainage Ditch No. 000000000171411	087251108	2004	Culvert	22 ft	249	Good
FM over Creek No. 000000000170920	086243604	1957	Slab	78 ft	240	Poor
FM over Buck Creek No. 000000000172371	089252303	1975	Culvert	26 ft	240	Fair
D41 280th ST over Creek No. 000000000171401	087250203	2015	Culvert	30 ft	234	Good
FM over Buck Creek No. 000000000172361	089252206	1975	Culvert	26 ft	199	Fair
CO RD R 61 over U.S. 20 No. 000000000606180	0.5 Mile East of JCT I-35	1990	Stringer/Multi-beam or Girder	253 ft	159	Good
Columbia ST over Lyons Creek No. 000000000012281	000000000	1982	Stringer/Multi-beam or Girder	58 ft	141	Good
Local over Creek No. 000000000170820	086241001	1918	Tee Beam	38 ft	131	Poor
FM over Brewers Creek No. 000000000172021	088261003	1978	Culvert	31 ft	131	Fair
SR D-47 over I-35 No. 000000000026710	3.0 Miles N of JCT Ia 175	1966	Stringer/Multi-beam or Girder	218 ft	100	Fair
Local over Skunk River No. 000000000171380	087243606	1952	Stringer/Multi-beam or Girder	53 ft	100	Fair
Local over Skunk River No. 000000000171360	087242405	1952	Stringer/Multi-beam or Girder	53 ft	90	Fair
360th ST over Skunk River No. 000000000170851	086241405	2013	Slab	121 ft	80	Good
280th ST over Boone River No. 000000000366325	087250601	2019	Stringer/Multi-beam or Girder	457 ft	80	Good
Local RD over I-35 No. 000000000026660	At Junction With SR D68	1965	Stringer/Multi-beam or Girder	218 ft	71	Good
SR 350th Street over I-35 No. 000000000026680	2.0 Mi. S of Jct. Ia 175	1966	Stringer/Multi-beam or Girder	218 ft	71	Fair
Local over Creek No. 000000000170831	086241102	2006	Slab	103 ft	71	Good
Local over Ioway Creek No. 000000000171081	086262101	1991	Culvert	23 ft	71	Good
Local over Buck Creek No. 000000000172291	089251405	1994	Culvert	26 ft	71	Fair
280th ST over Boone River No. 000000000171920	088253108	1902	Truss - Thru	186 ft	62	Poor
Tollman Ave over US 20 No. 000000000026620	1.6 Miles W of JCT I-35	1967	Stringer/Multi-beam or Girder	210 ft	60	Good
Ziegler Ave over Bear CR No. 000000000170721	086232402	2012	Slab	34 ft	60	Good
Local over Boone River No. 000000000171540	087261604	1954	Stringer/Multi-beam or Girder	282 ft	60	Poor
FM over Boone River No. 000000000172320	089251701	1955	Stringer/Multi-beam or Girder	304 ft	60	Poor
Local over Keigley Creek No. 000000000170971	086252201	1994	Culvert	21 ft	50	Good
240th ST over Drainage Ditch No. 000000000171761	088241501	2011	Culvert	22 ft	50	Good
FM over Drainage Ditch No. 000000000172020	088263102	1924	Slab	25 ft	50	Fair
SR D-36 over I-35 No. 000000000026730	1.4 Miles S of JCT US 20	1967	Stringer/Multi-beam or Girder	222 ft	45	Good
Local over Ioway Creek No. 000000000171030	086253201	1917	Tee Beam	65 ft	45	Poor
Tollman Ave over Drainage Ditch No. 000000000171791	088242402	2012	Slab	34 ft	45	Good
Lockwood Ave over US 20 No. 000000000603350	3.0 Mile E of E JCT Ia 17	1975	Stringer/Multi-beam or Girder	268 ft	45	Good
Inkpaduta Ave over Boone River No. 000000000171910	088253003	1907	Truss - Thru	207 ft	40	Poor
Local over White Fox CR No. 000000000172300	089251503	1955	Stringer/Multi-beam or Girder	127 ft	40	Fair
203rd ST over Lyon Creek No. 000000000366540	089252603	2019	Culvert	21 ft	40	Good
280th ST over Skunk River No. 000000000171241	087240101	2020	Culvert	35 ft	34	Good
FM over Drainage Ditch No. 000000000171330	087241704	1920	Stringer/Multi-beam or Girder	42 ft	34	Poor
260th ST over Drainage Ditch No. 000000000171661	088232501	2017	Culvert	34 ft	34	Good
Local over White Fox Creek No. 000000000172401	089252803	1994	Slab	128 ft	34	Good
Local over Brewers Creek No. 000000000172552	089263501	1971	Culvert	23 ft	34	Fair
Mcmurray Ave over Keigley Branch No. 000000000366375	086252302	2017	Culvert	25 ft	34	Good
FM over Long Dick Creek No. 000000000170660	086230901	1924	Stringer/Multi-beam or Girder	45 ft	30	Poor
Xircus Ave over Long Dick Creek No. 000000000170701	086232202	2022	Culvert	39 ft	30	Good
Local over Drainage Ditch No. 000000000171340	087242101	1923	Stringer/Multi-beam or Girder	50 ft	30	Poor
Local over Skunk River No. 000000000171351	087242402	1993	Slab	91 ft	30	Good
Local over Drainage Ditch No. 000000000171800	088242501	1919	Stringer/Multi-beam or Girder	32 ft	30	Poor
160th ST over Drainage Ditch No. 000000000172041	089230201	2010	Culvert	31 ft	30	Good
Local over White Fox CR No. 000000000172240	089250303	1978	Slab	103 ft	30	Fair
175th ST over Buck Creek No. 000000000172281	089251203	2000	Culvert	27 ft	30	Good
Local over Long Dick CR No. 000000000170690	086232101	1955	Slab	78 ft	26	Fair
FM over Keigley Creek No. 000000000170990	086252402	1949	Stringer/Multi-beam or Girder	42 ft	26	Poor
FM over Skunk River No. 000000000171310	087241201	1955	Slab	78 ft	26	Fair
Local over Prairie CR No. 000000000171551	087262003	2006	Culvert	24 ft	26	Good
FM over Drainage Ditch No. 000000000171780	088242301	1923	Stringer/Multi-beam or Girder	42 ft	26	Poor
Local over Drainage Ditch No. 000000000172100	089230902	1924	Stringer/Multi-beam or Girder	32 ft	26	Fair
Local over Drainage Ditch No. 000000000172150	089231503	1970	Slab	78 ft	26	Fair
Local over Drainage Ditch No. 000000000172160	089231503	1970	Slab	78 ft	26	Fair
Local over Buck CR No. 000000000172221	089250103	2008	Culvert	26 ft	26	Good
Local over Boone River No. 000000000172250	089250703	1924	Truss - Thru	182 ft	26	Poor
Local over White Fox Creek No. 000000000172261	089251005	1989	Culvert	46 ft	26	Good
Poplar Grove Ave over US 20 No. 000000000603370	2.0 Miles W of JCT US 69	1975	Stringer/Multi-beam or Girder	268 ft	26	Good
Local over Long Dick CR No. 000000000170640	086230401	1924	Stringer/Multi-beam or Girder	33 ft	20	Poor
Local over Long Dick CR No. 000000000170750	086233401	1916	Girder and Floorbeam System	40 ft	20	Poor
Local over Keigley Creek No. 000000000170870	086243002	1955	Slab	78 ft	20	Fair
370th ST over Drainage Ditch No. 000000000171101	086262401	2017	Culvert	32 ft	20	Good
FM over Ioway Creek No. 000000000171120	086262502	1924	Stringer/Multi-beam or Girder	38 ft	20	Fair
Local over Drainage Ditch No. 000000000171291	087240703	1971	Culvert	23 ft	20	Fair
Local over Skunk River No. 000000000171320	087241202	1955	Slab	78 ft	20	Fair
Local over Prairie CR No. 000000000171501	087260503	2008	Channel Beam	34 ft	20	Good
Local over Creek No. 000000000171880	088251601	1926	Slab	21 ft	20	Poor
390th ST over Drainage Ditch No. 000000000364815	086263203	2004	Culvert	24 ft	20	Good
Ziegler Ave over US 20 No. 000000000606190	2.0 Miles East of SR R77	1990	Stringer/Multi-beam or Girder	268 ft	20	Good
Local over Long Dick CR No. 000000000170680	086231601	1955	Slab	78 ft	15	Fair
Local over Bear CR No. 000000000170780	086233601	1918	Slab	23 ft	15	Poor
Local over Keigley CR No. 000000000170880	086243101	1977	Slab	78 ft	15	Fair
Local over Keigley CR No. 000000000170890	086243202	1954	Slab	78 ft	15	Fair
Local over Crooked Creek No. 000000000170950	086251802	1970	Slab	78 ft	15	Fair
Local over Ioway Creek No. 000000000171020	086253002	1952	Stringer/Multi-beam or Girder	82 ft	15	Poor
FM over Drainage Ditch No. 000000000171650	088232502	1949	Slab	70 ft	15	Poor
Local over Skunk River No. 000000000171690	088233001	1949	Stringer/Multi-beam or Girder	44 ft	15	Fair
Local over Brewers CR No. 000000000171940	088260304	1926	Stringer/Multi-beam or Girder	31 ft	15	Poor
Local over Drainage Ditch No. 000000000172060	089230502	1922	Stringer/Multi-beam or Girder	32 ft	15	Poor
Local over Drainage Ditch No. 000000000172071	089230701	1975	Stringer/Multi-beam or Girder	32 ft	15	Poor
Local over Ioway Creek No. 000000000171131	086262602	1988	Slab	97 ft	11	Good
FM over Drainage Ditch No. 000000000171640	088232404	1923	Stringer/Multi-beam or Girder	31 ft	11	Poor
Local over Drainage Ditch No. 000000000171751	088241402	2011	Culvert	33 ft	11	Good
170th ST over Drainage Ditch No. 000000000172091	089230801	2012	Culvert	27 ft	11	Good
Local over Drainage Ditch No. 000000000172121	089231003	2005	Culvert	28 ft	11	Good
Local over Drainage Ditch No. 000000000172500	089261306	1929	Slab	25 ft	11	Fair
Local over Creek No. 000000000361360	088250906	1918	Slab	26 ft	11	Fair
Local over Drainage Ditch No. 000000000172140	089231501	1925	Stringer/Multi-beam or Girder	33 ft	5	Poor
Local Legno over Stream No. 000000000171560	087262904	1920	Stringer/Multi-beam or Girder	39 ft	—	Poor

Structure types in Hamilton County

Stringer/Multi-beam or Girder	75	45.5%
Culvert	45	27.3%
Slab	36	21.8%
Truss - Thru	3	1.8%
Girder and Floorbeam System	3	1.8%
Tee Beam	2	1.2%
Channel Beam	1	0.6%