Clay County, Iowa bridges

Clay County has 154 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 16 (10%) are rated poor. The most common type is slab (48%).

Bridges: 154
Good: 38%
Fair: 52%
Poor: 10%; 16 bridges
Average age: 41.4 yrs
Posted or closed: 6

Map of bridges in Clay County

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

Search bridges in Clay County

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

Condition

Good38%(58)

Fair52%(80)

Poor10%(16)

When they were built

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

Busiest

US 18 & 71 over Little Sioux River
16,900 vehicles/day
Good
US 71 over Br of Little Meadow Crk
11,400 vehicles/day
Fair
US 71 over Prairie Creek
4,770 vehicles/day
Good
US 18 over Lost Island Outlet
4,270 vehicles/day
Fair
US 18 over Drainage Ditch
4,270 vehicles/day
Fair

Longest

US 18 over Little Sioux River
538 ft
Good
US 18 & 71 over Little Sioux River
459 ft
Good
B53 5th ST over Little Sioux River
423 ft
Good
FM 390th ST over Little Sioux River
418 ft
Fair
FM 480th ST over Little Sioux River
378 ft
Poor

Oldest

330th ST over Stream
Built 1900
Fair
355th ST over Little Sioux River
Built 1905
Poor
470th ST over Little Sioux River
Built 1907
Poor
290th ST over Stream
Built 1913
Poor
210th Ave over Little Sioux River
Built 1915
Poor

All bridges in Clay County

Busiest first · showing 1–154 of 154

Bridges in Clay County
Bridge	Location	Built	Type	Length	Daily traffic	Condition
US 18 & 71 over Little Sioux River No. 000000000020331	0.7 Mi. W of E Jct. US 71	2006	Stringer/Multi-beam or Girder	459 ft	16,900	Good
US 71 over Br of Little Meadow Crk No. 000000000606065	0.8 Mi. N of N Jct. US 18	1990	Culvert	42 ft	11,400	Fair
US 71 over Prairie Creek No. 000000000020401	1.4 Mi. N of Jct. SR B40	2017	Slab	101 ft	4,770	Good
US 18 over Lost Island Outlet No. 000000000020360	1.0 Mi. E of Jct. SR M54	1931	Slab	105 ft	4,270	Fair
US 18 over Drainage Ditch No. 000000000020380	At the JCT of SR N14	1965	Culvert	29 ft	4,270	Fair
US 18 over Little Sioux River No. 000000000020341	3.1 Mi. E of E Jct. US 71	2010	Stringer/Multi-beam or Girder	538 ft	4,170	Good
US 18 over Little Sioux Overflow No. 000000000020350	3.6 Mi. E of E Jct. US 71	1931	Stringer/Multi-beam or Girder	42 ft	4,170	Fair
US 71 over Willow Creek No. 000000000020390	3.4 Mi. N of N JCT Ia 10	1923	Slab	71 ft	3,940	Fair
US 18 over Ocheydon River Overflow No. 000000000020291	2.4 Mi. W of S.R. M27	1987	Slab	83 ft	2,990	Good
US 18 over Ocheyedan River No. 000000000020301	2.3 MI W of SR M-27	2014	Slab	151 ft	2,990	Good
FM 240th Ave over Little Sioux River No. 000000000116681	096361608	1991	Stringer/Multi-beam or Girder	319 ft	2,623	Good
350th ST over Little Sioux River No. 000000000116871	096371405	1976	Slab	223 ft	2,584	Fair
FM 340th ST over Little Sioux River No. 000000000116860	096371103	1963	Stringer/Multi-beam or Girder	203 ft	2,573	Poor
US 18 over Little Sioux River No. 000000000020320	2.1 Mi. W of W JCT US 71	1930	Stringer/Multi-beam or Girder	179 ft	2,560	Fair
200 Ave over Ocheyedan River No. 000000000365795	096371502	2012	Stringer/Multi-beam or Girder	243 ft	2,273	Good
FM 350th ST over Ocheyedan River No. 000000000116911	096371803	1973	Slab	223 ft	1,806	Fair
FM 350th ST over Spring Creek No. 000000000117070	096381403	1963	Slab	78 ft	1,806	Poor
FM 130th Ave over Ocheyedan River No. 000000000117041	096381002	1971	Slab	203 ft	1,287	Poor
FM 190th Ave over Ocheyedan River No. 000000000116901	096371502	2002	Stringer/Multi-beam or Girder	243 ft	1,277	Good
FM 320th ST over Dd #28 No. 000000000117451	097363201	1996	Culvert	30 ft	1,228	Fair
FM 240th Ave over Drainage Ditch #28 No. 000000000117471	097363304	1987	Stringer/Multi-beam or Girder	44 ft	1,228	Fair
Ia 10 over Little Sioux River No. 000000000020410	0.5 Mi. E of W JCT SR M27	1970	Stringer/Multi-beam or Girder	355 ft	1,030	Fair
FM 310th Ave over L Trumbull Outlet No. 000000000117280	097352702	1970	Slab	78 ft	968	Fair
FM 350th ST over Drainage No. 000000000117095	096381701	1972	Culvert	21 ft	908	Fair
Railway ST over Elk Creek No. 000000000500211	000000000	1996	Culvert	26 ft	884	Fair
FM 350th ST over Big Meadow Creek No. 000000000116650	096361501	1963	Slab	128 ft	878	Fair
350th ST over Overflow Meadow Creek No. 000000000116661	096361501	1976	Slab	63 ft	878	Fair
N18 340th Ave over Lost Island Lake No. 000000000116471	096350105	2021	Stringer/Multi-beam or Girder	58 ft	838	Good
FM 190th Ave over Prairie Creek No. 000000000116920	096373402	1964	Slab	78 ft	818	Fair
FM 400th ST over Willow Creek No. 000000000116390	095380801	1968	Slab	75 ft	797	Fair
Ia 10 over Drainage Ditch No. 000000000020420	3.2 Mi. W of Jct. SR M36	1932	Culvert	43 ft	700	Fair
Ia 10 over Drainage Ditch No. 000000000020431	1.7 Mi. W of Jct. SR M36	1976	Culvert	25 ft	700	Good
FM 130th Ave over Willow Creek No. 000000000116400	095381502	1964	Slab	78 ft	619	Fair
FM 100th Ave over Stream No. 000000000117101	096381802	1972	Culvert	21 ft	529	Fair
FM 440th ST over Small No. 000000000116351	095373201	1988	Slab	33 ft	469	Fair
FM 300th ST over Drainage Ditch No. 000000000117250	097352201	1963	Slab	128 ft	469	Fair
FM 280th Ave over Pickeral Run No. 000000000116511	096351902	1993	Slab	128 ft	459	Poor
M50 240th Ave over Prairie Creek No. 000000000116751	096363302	2022	Culvert	37 ft	447	Good
FM 440th ST over Willow Creek No. 000000000116331	095373101	2009	Slab	120 ft	399	Good
FM 480th ST over Little Sioux River No. 000000000020450	094362001	1954	Stringer/Multi-beam or Girder	378 ft	369	Poor
B63 (480th St) over Montgomery Creek No. 000000000020461	094362401	2014	Culvert	35 ft	369	Good
FM 300th ST over Little Meadow Ck No. 000000000117361	097362101	1989	Culvert	27 ft	369	Fair
FM 300th ST over Big Muddy Creek No. 000000000117390	097362301	1963	Slab	103 ft	369	Poor
FM 100th Ave over Br Ocheyedan R No. 000000000117000	096380602	1967	Slab	103 ft	359	Fair
N18 330th Ave over Pool-Mud Lake No. 000000000117261	097352502	2018	Culvert	30 ft	350	Good
B53 5th ST over Little Sioux River No. 000000000116241	095362505	2021	Stringer/Multi-beam or Girder	423 ft	339	Good
FM 280th ST over Little Sioux River No. 000000000117530	097370701	1966	Slab	175 ft	270	Poor
FM 280th ST over Stoney Creek No. 000000000117660	097381001	1965	Slab	128 ft	270	Fair
N14 310th Ave over Elk Creek No. 000000000116081	095351502	2022	Culvert	29 ft	264	Good
FM 310th Ave over Ditch NO.60 No. 000000000116550	096352202	1967	Slab	78 ft	259	Poor
FM 430th ST over Elk Creek No. 000000000116110	095353001	2004	Culvert	31 ft	240	Good
FM 240th Ave over Little Muddy Creek No. 000000000117481	097363208	1987	Slab	78 ft	240	Good
225th Ave over Prairie Creek No. 000000000116731	096363104	2022	Culvert	35 ft	223	Good
FM 170th Ave over Small Waterway No. 000000000115971	094370802	1993	Culvert	20 ft	219	Good
FM 170th Ave over Willow Creek No. 000000000116360	095373202	1963	Stringer/Multi-beam or Girder	71 ft	219	Fair
FM 160th Ave over Willow Creek No. 000000000116320	095373002	1962	Stringer/Multi-beam or Girder	71 ft	190	Poor
340th ST over Stony Creek No. 000000000116851	096370703	2003	Slab	128 ft	185	Fair
FM 150th Ave over Willow Creek No. 000000000116451	095382502	1973	Slab	128 ft	180	Fair
1st ST South over Pickeral Run No. 000000000501151	86351803	2021	Slab	113 ft	171	Good
140th Ave over Ocheyedan River No. 000000000117050	096381102	1963	Stringer/Multi-beam or Girder	178 ft	153	Fair
330th ST over Stream No. 000000000116950	096380201	1900	Culvert	32 ft	123	Fair
240th Ave over Little Meadows No. 000000000117421	097362802	1999	Culvert	27 ft	123	Fair
230th Ave over Dd #28 No. 000000000117445	097362902	1979	Slab	32 ft	123	Fair
FM 280th Ave over Pickerel Run No. 000000000116501	096351704	1990	Culvert	27 ft	120	Fair
Local RD over Small No. 000000000364575	097362102	2003	Slab	22 ft	112	Good
340th ST over Big Meadow Creek No. 000000000116641	096361001	1981	Slab	103 ft	105	Fair
290th Ave over Stream No. 000000000116521	096352002	1994	Culvert	21 ft	103	Fair
330th ST over Little Meadow Creek No. 000000000116620	096360403	1975	Slab	75 ft	103	Good
340th ST over Little Meadow Creek No. 000000000116631	096360905	1981	Slab	87 ft	103	Good
225th Ave over Small Stream No. 000000000116175	095360604	1978	Culvert	22 ft	81	Fair
330th ST over Big Meadow Creek No. 000000000116611	096360301	1990	Slab	90 ft	81	Good
310th ST over Little Sioux River No. 000000000117581	097372802	1986	Slab	223 ft	81	Good
150th Ave over Stoney Creek No. 000000000117701	097381302	1994	Slab	116 ft	81	Good
FM 320th ST over Big Meadow Creek No. 000000000117491	097363501	1978	Slab	78 ft	80	Fair
190th Ave over Willow Creek No. 000000000115931	094370302	1978	Slab	115 ft	72	Fair
330th ST over Stream No. 000000000116961	096380601	2005	Slab	128 ft	72	Fair
250th Ave over Little Muddy Creek No. 000000000117351	097361502	1996	Culvert	27 ft	72	Fair
FM 260th Ave over Overflow Little Sioux No. 000000000115770	094360202	1966	Slab	128 ft	71	Fair
FM 260th Ave over Montgomery Creek No. 000000000115771	094360202	1978	Culvert	38 ft	71	Fair
FM 260th Ave over Little Sioux River No. 000000000116260	095363502	1969	Stringer/Multi-beam or Girder	253 ft	71	Fair
455th ST over Montgomery Creek No. 000000000115781	094360203	2002	Culvert	25 ft	62	Fair
250th Ave over Prairie Creek No. 000000000116721	096362702	1990	Slab	90 ft	62	Fair
210th Ave over Little Sioux River No. 000000000116790	096370102	1915	Truss - Thru	180 ft	62	Poor
150th Ave over Stream No. 000000000117121	096382402	2000	Culvert	22 ft	62	Good
280th ST over Stream No. 000000000117211	097351001	2000	Culvert	26 ft	60	Fair
Pk 658(WANATA) over Little Sioux River No. 000000000699240	In Wanata State Park	1972	Stringer/Multi-beam or Girder	207 ft	58	Good
180th Ave over Willow Creek No. 000000000115941	094370402	1979	Slab	91 ft	50	Fair
390th ST over Prairie Creek No. 000000000116291	095370401	2008	Culvert	24 ft	50	Good
FM 280th ST over Big Meadow Creek No. 000000000117190	097350701	1977	Slab	78 ft	50	Fair
FM 290th Ave over Pickeral Run #37 No. 000000000117291	097353202	1995	Culvert	23 ft	50	Fair
FM 270th Ave over Meadow Creek No. 000000000117340	097361302	1968	Slab	78 ft	50	Fair
FM 190th Ave over Little Sioux River No. 000000000117561	097372702	1992	Stringer/Multi-beam or Girder	204 ft	50	Good
370th ST over Stream No. 000000000116571	096352601	2001	Culvert	23 ft	47	Fair
490th ST over Montgomery Creek No. 000000000115751	094353001	1990	Slab	33 ft	46	Fair
190th Ave over Stream No. 000000000115981	094371002	1999	Culvert	23 ft	46	Fair
420th ST over Stream No. 000000000116221	095362201	2005	Culvert	21 ft	46	Good
340th ST over Pickerel Run No. 000000000116481	096350701	1991	Slab	78 ft	46	Good
300th Ave over Stream No. 000000000116531	096352102	1999	Culvert	23 ft	46	Fair
140th Ave over Stony Creek No. 000000000117681	097381102	1978	Slab	128 ft	46	Good
FM 200th Ave over Willow Creek No. 000000000115991	094371102	1989	Slab	115 ft	45	Fair
460th ST over Stream No. 000000000116001	094371203	1994	Culvert	22 ft	41	Fair
105th Ave over Henry Creek No. 000000000116040	094381804	1965	Slab	75 ft	41	Poor
370th ST over Stream No. 000000000116581	096352701	1998	Culvert	23 ft	41	Good
330th ST over Stony Creek No. 000000000116820	096370603	1965	Slab	125 ft	41	Fair
355th ST over Little Sioux River No. 000000000116880	096371106	1905	Truss - Thru	180 ft	41	Poor
FM 390th ST over Little Sioux River No. 000000000116151	095360201	1986	Stringer/Multi-beam or Girder	418 ft	40	Fair
390th ST over Overflow Little Sioux R No. 000000000116160	095360201	1955	Stringer/Multi-beam or Girder	128 ft	40	Fair
160th Ave over Spring Creek No. 000000000116831	096370702	1981	Slab	128 ft	40	Good
FM 160th Ave over Ocheyedan River No. 000000000116841	096370702	1981	Slab	128 ft	40	Fair
100th Ave over Willow Creek No. 000000000117151	096383102	1996	Slab	30 ft	35	Good
290th ST over Meadow Creek No. 000000000117331	097361301	2002	Slab	56 ft	35	Good
FM 320th ST over Drainage Dist #37 Ditch No. 000000000117301	097353301	1978	Slab	78 ft	34	Fair
FM 160th Ave over Stony Creek No. 000000000117601	097373002	1990	Slab	114 ft	34	Good
470th ST over Montgomery Creek No. 000000000115861	094361403	1998	Slab	30 ft	30	Fair
495th ST over Little Sioux River No. 000000000115891	094362803	2005	Stringer/Multi-beam or Girder	263 ft	30	Good
110th Ave over Willow Creek No. 000000000116370	095380502	1928	Stringer/Multi-beam or Girder	34 ft	30	Poor
380th ST over Prairie Ck No. 000000000116741	096363301	1977	Slab	78 ft	30	Fair
370th Ave over Stream No. 000000000117131	096382501	2000	Culvert	22 ft	30	Fair
310th ST over Meadow Creek No. 000000000117401	097362601	1999	Culvert	34 ft	30	Fair
260th Ave over Big Meadow Creek No. 000000000117501	097363502	2000	Slab	78 ft	30	Good
290th ST over Little Sioux River No. 000000000117541	097371701	1978	Slab	174 ft	30	Fair
340th ST over Ocheyedan River No. 000000000365340	096380505	2008	Slab	140 ft	30	Good
225th ST over Willow Creek No. 000000000115791	094360704	1978	Slab	103 ft	26	Fair
470th ST over Little Sioux River No. 000000000115830	094360906	1907	Truss - Thru	213 ft	26	Poor
270th Ave over Montgomery Creek No. 000000000115851	094361302	1993	Slab	75 ft	26	Good
110th Ave over Henry Creek No. 000000000116030	094380802	1965	Culvert	22 ft	26	Fair
270th ST over Stony Creek No. 000000000117631	097380301	1976	Slab	103 ft	26	Fair
300th ST over Stoney Creek No. 000000000117771	097382401	2005	Slab	117 ft	26	Good
310th ST over Stony Creek No. 000000000117782	097382501	2020	Slab	113 ft	26	Good
460th ST over Stream No. 000000000115961	094370801	2005	Culvert	20 ft	21	Good
390th ST over Prarie Creek No. 000000000116281	095370201	2006	Culvert	20 ft	21	Good
180th Ave over Prairie Creek No. 000000000116301	095370402	2008	Culvert	24 ft	21	Fair
320th Ave over Stream No. 000000000117231	097351102	2007	Slab	24 ft	21	Good
310th ST over Little Muddy Creek No. 000000000117411	097362801	1991	Culvert	25 ft	21	Fair
300th ST over Ocheydan River No. 000000000117761	097381901	2015	Slab	143 ft	21	Good
FM 320th Ave over Dd #22 No. 000000000115741	094352602	2003	Slab	30 ft	20	Fair
270th ST over Big Meadow Ck No. 000000000117181	097350601	1976	Slab	91 ft	20	Fair
450th ST over Stream No. 000000000115950	094370501	1949	Stringer/Multi-beam or Girder	31 ft	15	Fair
430th ST over Willow Creek No. 000000000116461	095382601	2020	Slab	73 ft	15	Good
330th Ave over D.D#60 No. 000000000116561	00000	2011	Culvert	21 ft	15	Fair
345th ST over Stream No. 000000000117061	096381203	2002	Slab	30 ft	15	Good
290th ST over Stoney Creek No. 000000000117721	097381401	2004	Stringer/Multi-beam or Girder	68 ft	15	Fair
420th ST over Elk Creek No. 000000000116091	095352001	1978	Culvert	54 ft	11	Fair
280th Ave over Elk Creek No. 000000000116121	095353004	1917	Stringer/Multi-beam or Girder	34 ft	11	Poor
120th Ave over Willow Creek No. 000000000116411	00000	2011	Culvert	24 ft	11	Good
400th ST over Willow Creek No. 000000000116421	95381701	2011	Culvert	24 ft	11	Good
420th ST over Willow Creek No. 000000000116431	095382201	1978	Slab	78 ft	11	Fair
200th Ave over Prairie Creek No. 000000000116931	096373502	2003	Slab	33 ft	11	Good
300th Ave over Stream No. 000000000117311	097353302	2000	Culvert	24 ft	11	Fair
300th ST over Little Sioux River No. 000000000117551	097372001	1996	Stringer/Multi-beam or Girder	192 ft	11	Good
SR M22 over Side Ditch No. 000000000605895	At Jct. SR M-22	1959	Culvert	27 ft	10	Good
400th ST over Stream No. 000000000116191	095361101	2014	Culvert	21 ft	5	Good
390th ST over Willow Creek No. 000000000116381	095380601	2008	Culvert	20 ft	5	Good
290th ST over Stream No. 000000000117245	097351505	1913	Truss - Thru	52 ft	5	Poor

Structure types in Clay County

Slab	74	48.1%
Culvert	49	31.8%
Stringer/Multi-beam or Girder	27	17.5%
Truss - Thru	4	2.6%