Sioux County, Iowa bridges
Sioux County has 448 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 14 (3%) are rated poor. The most common type is stringer/multi-beam or girder (42%).
- Bridges
- 448
- Good
- 63%
- Fair
- 34%
- Poor
- 3%
- 14 bridges
- Average age
- 43.1 yrs
- Posted or closed
- 15
Map of bridges in Sioux County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Sioux County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good63%(281)
Fair34%(153)
Poor3%(14)
When they were built
Busiest
- US 75 over W Fork Floyd RiverGood7,300 vehicles/day
- US 75 over StreamGood7,300 vehicles/day
- US 18 over Rogg CreekGood6,700 vehicles/day
- Ia 60 over StreamGood6,500 vehicles/day
- Ia 10 over Floyd RiverFair5,300 vehicles/day
Longest
- Good
- Good
- Good
- Fair
- FM over Rock RiverFair574 ft
Oldest
- FM over SmallFairBuilt 1900
- K64 over Unnamed CreekFairBuilt 1900
- Garfield ST over DrainagePoorBuilt 1900
- Local over Small StreamPoorBuilt 1900
- Local over No Name CreekGoodBuilt 1900
All bridges in Sioux County
Busiest first · showing 1–200 of 448| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| US 75 over W Fork Floyd River No. 000000000048401 | 0.1 MI N of Jct. Ia 10 | 1989 | Stringer/Multi-beam or Girder | 261 ft | 7,300 | Good |
| US 75 over Stream No. 000000000607555 | 1.3 MI N of JCT Ia 10 | 1998 | Slab | 128 ft | 7,300 | Good |
| US 18 over Rogg Creek No. 000000000048281 | 0.8 Mi. E of SR K30 | 1985 | Stringer/Multi-beam or Girder | 154 ft | 6,700 | Good |
| Ia 60 over Stream No. 000000000048641 | 1.5 Mi. S SR L26 | 1991 | Culvert | 21 ft | 6,500 | Good |
| Ia 10 over Floyd River No. 000000000048541 | 0.7 Mi. W of N Jct. Ia 60 | 1993 | Stringer/Multi-beam or Girder | 286 ft | 5,300 | Fair |
| US 18 over Drainage Ditch No. 000000000048311 | 2.3 Mi. E of Jct. SR K52 | 1976 | Culvert | 32 ft | 5,200 | Fair |
| US 18 over West Fork Floyd River No. 000000000048321 | 2.0 Mi. E of Jct. SR K64 | 1976 | Culvert | 32 ft | 5,200 | Fair |
| US 18 over Floyd River No. 000000000048351 | 0.2 W of Jct. SR L26 | 1992 | Stringer/Multi-beam or Girder | 209 ft | 5,100 | Fair |
| Ia 10 over Orange City Slough No. 000000000048531 | 4.5 Mi. E of US 75 | 1977 | Slab | 78 ft | 4,060 | Fair |
| Ia 10 over Over UP RR No. 000000000048551 | 1.0 MI W of Ia. 60 | 1983 | Stringer/Multi-beam or Girder | 201 ft | 3,790 | Fair |
| US 75 over Drainage Ditch No. 000000000048360 | 3.3 Mi. S of SR B58 | 1972 | Culvert | 38 ft | 3,610 | Fair |
| US 75 over W Fork Floyd River No. 000000000048370 | 2.8 Mi. S of JCT SR B58 | 1972 | Stringer/Multi-beam or Girder | 238 ft | 3,610 | Fair |
| US 75 over W Fork Floyd River No. 000000000048380 | 2.3 Mi. S of SR B58 | 1972 | Stringer/Multi-beam or Girder | 238 ft | 3,610 | Fair |
| Albany Ave.N over Orange City Slough No. 000000000310061 | 095442804 | 1973 | Slab | 32 ft | 3,610 | Fair |
| Ia 60 SB over Floyd River Tributary No. 000000000609300 | 0.5 MI S of SR K64 | 2003 | Slab | 92 ft | 3,450 | Fair |
| Ia 60 NB over Little Floyd River No. 000000000609235 | 0.4 Mi. S of Jct. SR L26 | 2005 | Stringer/Multi-beam or Girder | 228 ft | 3,250 | Good |
| Ia 60 SB over Little Floyd River No. 000000000609240 | 0.4 Mi. S of SR L26 | 2006 | Stringer/Multi-beam or Girder | 228 ft | 3,250 | Good |
| Ia 60 NB over Floyd River Tributary No. 000000000048590 | 0.5 Mi. S of SR K64 | 1932 | Stringer/Multi-beam or Girder | 62 ft | 3,200 | Fair |
| US 18 over Old Channel Rock River No. 000000000048221 | 0.7 Mi. W of JCT SR K24 | 1989 | Stringer/Multi-beam or Girder | 204 ft | 3,160 | Good |
| US 18 over Rock River No. 000000000048231 | 0.3 Mi. W of JCT SR K24 | 2002 | Stringer/Multi-beam or Girder | 420 ft | 3,160 | Good |
| US 18 over Drainage Ditch No. 000000000048190 | 0.1 MI E of SR K18 | 1944 | Culvert | 30 ft | 3,040 | Fair |
| US 18 over Dry Run Creek No. 000000000048211 | 1.7 Mi. W of S.R. K24 | 2007 | Slab | 170 ft | 3,040 | Good |
| FM over Creek No. 000000000309940 | 095440801 | 1965 | Culvert | 36 ft | 2,992 | Good |
| FM over W Fork Floyd River No. 000000000310210 | 095451201 | 1967 | Stringer/Multi-beam or Girder | 128 ft | 2,992 | Fair |
| FM over Small No. 000000000365015 | 095451201 | 1900 | Culvert | 22 ft | 2,992 | Fair |
| K30 Elmwood Ave over Rock River No. 000000000312931 | 097461606 | 2017 | Stringer/Multi-beam or Girder | 409 ft | 2,963 | Good |
| FM over Rock River Overflow No. 000000000312970 | 097462102 | 1950 | Stringer/Multi-beam or Girder | 227 ft | 2,963 | Fair |
| Ia 10 over Dry Creek No. 000000000048481 | 0.9 Mi. E of Jct. Ia 12 | 1973 | Stringer/Multi-beam or Girder | 172 ft | 2,960 | Fair |
| FM over Stream No. 000000000308381 | 094440902 | 1998 | Slab | 91 ft | 2,930 | Good |
| Local over Small No. 000000000364985 | 094440902 | 1940 | Culvert | 22 ft | 2,930 | Good |
| Ia 10 over Dry Creek No. 000000000048470 | 0.4 MI W of Ia 12 | 1955 | Slab | 127 ft | 2,800 | Fair |
| US 75 over Burr Oak Creek No. 000000000048441 | 3.1 MI N of N JCT US 18 | 2011 | Slab | 151 ft | 2,610 | Good |
| Ia 12 over Dry Creek No. 000000000048580 | 0.4 Mi. S of Ia 10 | 1963 | Slab | 127 ft | 2,580 | Good |
| Ia 60 NB over Mckinley Ave No. 000000000609245 | 3.8 Mi. S of Jct. U.S. 18 | 2004 | Stringer/Multi-beam or Girder | 223 ft | 2,550 | Good |
| Ia 60 SB over Mckinley Ave No. 000000000609250 | 3.8 Mi. S of Jct. U.S. 18 | 2004 | Stringer/Multi-beam or Girder | 223 ft | 2,550 | Good |
| FM over Small Stream No. 000000000308481 | 094442102 | 1985 | Slab | 128 ft | 2,539 | Good |
| Ia 60 SB over Willow Creek No. 000000000609285 | 0.7 Mi. N of Jct. SR B40 | 2003 | Stringer/Multi-beam or Girder | 267 ft | 2,485 | Good |
| Ia 60 NB over Willow Creek No. 000000000609290 | 0.7 Mi. N of Jct. SR B40 | 2003 | Stringer/Multi-beam or Girder | 267 ft | 2,485 | Good |
| Local over Small No. 000000000364850 | 095451004 | 2004 | Culvert | 27 ft | 2,324 | Good |
| Ia 10 over Six Mile Creek No. 000000000048491 | 1.7 Mi. W of W JCT SR K22 | 1987 | Stringer/Multi-beam or Girder | 176 ft | 2,210 | Good |
| Ia 60 SB over Iowa 10 No. 000000000608870 | Over Iowa 10. | 2002 | Stringer/Multi-beam or Girder | 228 ft | 2,075 | Good |
| Ia 60 NB over Iowa 10 No. 000000000608865 | Over Iowa 10 | 2002 | Stringer/Multi-beam or Girder | 228 ft | 2,060 | Good |
| Ia 10 over Spring Creek No. 000000000048501 | 2.1 MI W of JCT SR K-30 | 1987 | Culvert | 25 ft | 2,040 | Good |
| Ia 60 NB over B 58 & UPRR No. 000000000608855 | 1.3 MI S of JCT Ia 10 | 2002 | Stringer/Multi-beam or Girder | 583 ft | 2,035 | Good |
| Ia 60 SB over B 58 & UPRR No. 000000000608860 | 1.3 Mi. S of Jct. Ia 10 | 2002 | Stringer/Multi-beam or Girder | 603 ft | 2,035 | Good |
| Ia 60 NB over Floyd River No. 000000000608875 | 0.7 MI S of JCT Ia 10 | 2002 | Stringer/Multi-beam or Girder | 456 ft | 2,035 | Good |
| Ia 60 SB over Floyd River No. 000000000608880 | 0.7 Mi. S of Jct. Ia 10 | 2002 | Stringer/Multi-beam or Girder | 456 ft | 2,035 | Good |
| FM over Creek No. 000000000310411 | 095460201 | 1977 | Culvert | 25 ft | 1,926 | Good |
| FM over Sixmile Creek No. 000000000310421 | 095460301 | 1972 | Slab | 100 ft | 1,926 | Fair |
| Ia 10 over Big Sioux River No. 000000000048451 | At S Dakota St. Line | 1991 | Stringer/Multi-beam or Girder | 518 ft | 1,910 | Fair |
| Ia 10 over Drainage Ditch No. 000000000048460 | 1.3 Mi. E of S.R. B-46 | 1954 | Culvert | 25 ft | 1,910 | Good |
| Ia 10 over Stream No. 000000000048511 | 0.4 Mi. W of Jct. US 75 | 1989 | Culvert | 33 ft | 1,900 | Fair |
| Ia 10 over W Br Floyd River No. 000000000048521 | 0.1 MI W of US 75 | 1989 | Stringer/Multi-beam or Girder | 261 ft | 1,900 | Fair |
| NB Ia 60 over 450th Street No. 000000000608840 | 0.9 Mi. N of Jct. Ia 10 | 2003 | Stringer/Multi-beam or Girder | 169 ft | 1,880 | Good |
| Ia 60 SB over 450th Street No. 000000000608845 | 0.9 Mi. N of Jct. Ia 10 | 2002 | Stringer/Multi-beam or Girder | 169 ft | 1,880 | Good |
| Ia 10 over Willow Creek No. 000000000048561 | 0.8 Mi. E of SR L14 | 2008 | Culvert | 39 ft | 1,850 | Good |
| 3rd Ave over Floyd River No. 000000000048600 | 000000000 | 1933 | Stringer/Multi-beam or Girder | 213 ft | 1,807 | Fair |
| B40 over Floyd River No. 000000000309751 | 095431001 | 1977 | Stringer/Multi-beam or Girder | 255 ft | 1,795 | Fair |
| K30 Eagle Ave over Indian Creek No. 000000000048661 | 094460802 | 2006 | Slab | 87 ft | 1,555 | Good |
| FM over Sm Stream No. 000000000312820 | 097453504 | 1933 | Culvert | 27 ft | 1,416 | Good |
| County RD over Willow Creek No. 000000000048621 | 095430310 | 1991 | Slab | 181 ft | 1,347 | Fair |
| FM over Six Mile Creek No. 000000000311981 | 096462502 | 1982 | Culvert | 34 ft | 1,337 | Good |
| K64 over Small Stream No. 000000000311341 | 096440804 | 1984 | Slab | 129 ft | 1,277 | Good |
| FM over No Name Creek No. 000000000311350 | 096440904 | 1965 | Slab | 78 ft | 1,277 | Fair |
| FM over Big Sioux River No. 000000000312181 | 096471803 | 2009 | Stringer/Multi-beam or Girder | 495 ft | 1,277 | Fair |
| L 14 over Otter Creek No. 000000000312471 | 097440102 | 1991 | Stringer/Multi-beam or Girder | 230 ft | 1,267 | Good |
| L 14 over Otter Creek Overflow No. 000000000312482 | 097440102 | 1991 | Slab | 128 ft | 1,267 | Good |
| K52 over Small Stream No. 000000000311771 | 096452602 | 1978 | Culvert | 38 ft | 1,257 | Good |
| FM over Creek No. 000000000310281 | 095452001 | 1999 | Slab | 88 ft | 1,236 | Good |
| Local over Small No. 000000000365135 | 095460102 | 2006 | Culvert | 32 ft | 1,236 | Good |
| FM over Small Stream No. 000000000309776 | 095431103 | 1984 | Culvert | 31 ft | 1,147 | Fair |
| Ia 12 over Six Mile Creek No. 000000000048571 | 2.1 Mi. N of SR C12 | 2013 | Slab | 257 ft | 1,130 | Good |
| Ia 12 over Drainage No. 000000000606885 | 1.3 Mi. S of Jct. Ia 10 | 1954 | Culvert | 21 ft | 1,130 | Good |
| K64 over Unnamed Creek No. 000000000309910 | 095440402 | 1900 | Culvert | 28 ft | 1,117 | Fair |
| Local over Small Stream No. 000000000312800 | 097452703 | 1960 | Culvert | 26 ft | 1,117 | Good |
| Local over Small Creek No. 000000000308341 | 094440202 | 1985 | Culvert | 46 ft | 1,100 | Good |
| FM over Burr Oak Creek No. 000000000312700 | 097451402 | 1967 | Stringer/Multi-beam or Girder | 46 ft | 1,097 | Fair |
| FM over Burr Oak Creek No. 000000000312841 | 097460104 | 1973 | Slab | 128 ft | 1,087 | Good |
| FM over Dry Creek No. 000000000311970 | 096462102 | 1967 | Slab | 103 ft | 1,077 | Fair |
| B30 360th ST over Rock River No. 000000000312161 | 096471603 | 2023 | Stringer/Multi-beam or Girder | 598 ft | 1,017 | Good |
| K64 over Floyd River No. 000000000308591 | 094443302 | 1975 | Stringer/Multi-beam or Girder | 255 ft | 995 | Good |
| B 30 370th ST over No Name Creek No. 000000000311691 | 096452701 | 2018 | Stringer/Multi-beam or Girder | 68 ft | 988 | Good |
| 370th ST over No Name Creek No. 000000000311700 | 096452701 | 1965 | Culvert | 22 ft | 988 | Good |
| FM over Sixmile Creek No. 000000000310570 | 095462002 | 1973 | Slab | 128 ft | 957 | Good |
| FM over Creek No. 000000000310661 | 095462902 | 2003 | Slab | 91 ft | 957 | Good |
| FM over Dry Creek No. 000000000311891 | 096461202 | 2010 | Slab | 83 ft | 957 | Good |
| Garfield Ave over Small No. 000000000365140 | 097462502 | 1977 | Culvert | 35 ft | 900 | Good |
| FM over Six Mile Creek No. 000000000310575 | 095462001 | 1978 | Stringer/Multi-beam or Girder | 142 ft | 898 | Good |
| FM over No Name No. 000000000310581 | 095462101 | 1974 | Slab | 78 ft | 898 | Good |
| FM over Dry Creek No. 000000000311961 | 096462101 | 2004 | Slab | 115 ft | 857 | Good |
| FM over Orange City Slough No. 000000000308721 | 094451501 | 2002 | Slab | 113 ft | 823 | Good |
| FM over Floyd River No. 000000000000150 | 094440104 | 1954 | Stringer/Multi-beam or Girder | 276 ft | 813 | Poor |
| Local over Small No. 000000000364990 | 094441701 | 1977 | Culvert | 26 ft | 808 | Good |
| FM over No Name Creek No. 000000000313370 | 097480804 | 1966 | Culvert | 23 ft | 789 | Good |
| FM over No Name Creek No. 000000000313400 | 097481501 | 1966 | Culvert | 25 ft | 789 | Fair |
| FM over Spring Creek No. 000000000309181 | 094470202 | 1974 | Slab | 100 ft | 748 | Good |
| FM over West Branch No. 000000000311520 | 096443001 | 1963 | Stringer/Multi-beam or Girder | 153 ft | 738 | Fair |
| FM over Willow CR No. 000000000308180 | 094431702 | 1973 | Slab | 103 ft | 722 | Good |
| FM over No Name No. 000000000308211 | 094432002 | 1974 | Slab | 78 ft | 722 | Good |
| L14 over Small Stream No. 000000000308285 | 094432902 | 1954 | Culvert | 22 ft | 722 | Fair |
| FM over No Name Creek No. 000000000312170 | 096471702 | 1971 | Slab | 103 ft | 718 | Good |
| FM over Small Creek No. 000000000313305 | 097472902 | 1976 | Slab | 78 ft | 718 | Good |
| FM over Floyd River No. 000000000310990 | 096430103 | 1968 | Stringer/Multi-beam or Girder | 179 ft | 679 | Fair |
| 10th ST over Big Sioux River No. 000000000504185 | 000000000 | 1980 | Stringer/Multi-beam or Girder | 579 ft | 670 | Fair |
| 17th ST over Creamery Creek No. 000000000010040 | 000000000 | 1968 | Slab | 102 ft | 650 | Fair |
| FM over Indian Creek No. 000000000309420 | 094472602 | 1967 | Slab | 75 ft | 649 | Poor |
| FM over No Name Creek No. 000000000309570 | 094473502 | 1967 | Slab | 75 ft | 649 | Fair |
| K 30 Eagle Ave over Small Stream No. 000000000309101 | 094462902 | 2019 | Culvert | 27 ft | 638 | Good |
| K30 Eagle Ave over Small Stream No. 000000000309111 | 094462902 | 2019 | Culvert | 31 ft | 638 | Good |
| FM over Otter Creek No. 000000000312310 | 097430801 | 1962 | Stringer/Multi-beam or Girder | 200 ft | 619 | Fair |
| FM over Stream No. 000000000312321 | 097430801 | 1995 | Slab | 91 ft | 619 | Good |
| FM over Otter Creek No. 000000000312530 | 097441201 | 1962 | Stringer/Multi-beam or Girder | 203 ft | 619 | Fair |
| FM over Otter Creek 2nd Channel No. 000000000312540 | 097441201 | 1962 | Stringer/Multi-beam or Girder | 125 ft | 619 | Fair |
| FM over No Name Creek No. 000000000312350 | 097431101 | 1965 | Culvert | 22 ft | 609 | Good |
| A54B over No Name Creek No. 000000000313381 | 097481301 | 2021 | Stringer/Multi-beam or Girder | 47 ft | 609 | Good |
| L14 over Floyd River No. 000000000309870 | 095433004 | 1969 | Stringer/Multi-beam or Girder | 175 ft | 578 | Fair |
| L14 Kingbird Ave over No Name Creek No. 000000000311061 | 096431802 | 2016 | Culvert | 22 ft | 578 | Good |
| Kingbird Ave over Small No. 000000000365615 | 096433002 | 2010 | Culvert | 22 ft | 578 | Good |
| Local over Small No. 000000000365020 | 095472201 | 1976 | Culvert | 35 ft | 569 | Good |
| Local over Small Stream No. 000000000310092 | 095443202 | 1989 | Slab | 78 ft | 549 | Good |
| FM over W Branch Floyd River No. 000000000308730 | 094451701 | 1942 | Stringer/Multi-beam or Girder | 165 ft | 548 | Fair |
| FM over Dry Creek No. 000000000310840 | 095471901 | 1966 | Stringer/Multi-beam or Girder | 129 ft | 538 | Fair |
| B46 over No Name Creek No. 000000000310850 | 095472101 | 1966 | Stringer/Multi-beam or Girder | 44 ft | 538 | Poor |
| FM over Dry Creek No. 000000000312271 | 096473402 | 1973 | Slab | 125 ft | 529 | Good |
| FM over Indian Creek No. 000000000309270 | 094471301 | 1965 | Stringer/Multi-beam or Girder | 46 ft | 469 | Poor |
| FM over Orange City Slough No. 000000000310101 | 095443201 | 2003 | Slab | 78 ft | 450 | Good |
| Birch Ave over Big Sioux River No. 000000000313390 | 097481404 | 1966 | Stringer/Multi-beam or Girder | 405 ft | 450 | Fair |
| FM over Six Mile Creek No. 000000000310881 | 095472202 | 1993 | Stringer/Multi-beam or Girder | 142 ft | 439 | Good |
| K24 Dogwood Ave over No Name Creek No. 000000000313351 | 097473604 | 2017 | Stringer/Multi-beam or Girder | 68 ft | 429 | Good |
| FM over Dry Creek No. 000000000310720 | 095470401 | 1964 | Stringer/Multi-beam or Girder | 125 ft | 419 | Fair |
| FM over Six Mile Creek No. 000000000309630 | 094482402 | 1971 | Stringer/Multi-beam or Girder | 152 ft | 379 | Good |
| FM over No Name Creek No. 000000000310821 | 095471502 | 1973 | Slab | 75 ft | 369 | Good |
| FM over No Name Creek No. 000000000313020 | 097463002 | 1964 | Stringer/Multi-beam or Girder | 58 ft | 369 | Fair |
| L22 over Small Stream No. 000000000308125 | 094430202 | 1955 | Culvert | 20 ft | 366 | Good |
| L22 over Willow Creek No. 000000000309840 | 095432602 | 1955 | Slab | 78 ft | 359 | Good |
| 380th ST over Small Stream No. 000000000311752 | 096453101 | 2000 | Culvert | 44 ft | 359 | Good |
| FM over Barnes Creek No. 000000000308241 | 094432402 | 1993 | Slab | 91 ft | 345 | Good |
| FM over Deep Creek No. 000000000308261 | 094432504 | 1998 | Slab | 103 ft | 345 | Good |
| 470th Street over Ia 60 No. 000000000608850 | 2.0 Mi. S of Ia. 10 | 2003 | Stringer/Multi-beam or Girder | 320 ft | 300 | Good |
| FM over No Name Creek No. 000000000311270 | 096433404 | 1966 | Stringer/Multi-beam or Girder | 70 ft | 270 | Fair |
| FM over No Name Creek No. 000000000312440 | 097433402 | 1968 | Slab | 77 ft | 270 | Fair |
| L 22 over Small No. 000000000364875 | 097433402 | 2004 | Culvert | 27 ft | 270 | Good |
| Lily Ave over Small No. 000000000365390 | 096432202 | 2008 | Culvert | 22 ft | 270 | Good |
| 14th ST over Creamery Creek No. 000000000010020 | 3 310 East of Main St. O | 1961 | Stringer/Multi-beam or Girder | 62 ft | 257 | Poor |
| Local over Sm Stream No. 000000000313011 | 097462702 | 2011 | Slab | 93 ft | 240 | Good |
| Garfield ST over Drainage No. 000000000000160 | 000000000 | 1900 | Stringer/Multi-beam or Girder | 36 ft | 232 | Poor |
| Local over No Name Creek No. 000000000308431 | 094441601 | 2011 | Slab | 93 ft | 219 | Good |
| FM over Stream No. 000000000312141 | 096471101 | 1960 | Culvert | 23 ft | 210 | Good |
| Local over Floyd River No. 000000000310120 | 095443602 | 1965 | Stringer/Multi-beam or Girder | 202 ft | 199 | Fair |
| Local over Small Stream No. 000000000310130 | 095443602 | 1965 | Stringer/Multi-beam or Girder | 25 ft | 199 | Fair |
| K Ave over Dry Creek No. 000000000006010 | 000000000 | 1938 | Stringer/Multi-beam or Girder | 105 ft | 185 | Fair |
| 410th ST over Small Stream No. 000000000310251 | 095451501 | 2007 | Culvert | 33 ft | 159 | Good |
| FM over Rock River No. 000000000312080 | 096470303 | 1961 | Stringer/Multi-beam or Girder | 574 ft | 159 | Fair |
| FM over No Name Creek No. 000000000312092 | 096470303 | 1993 | Culvert | 33 ft | 159 | Good |
| FM over No Name Creek No. 000000000313312 | 097473001 | 1988 | Culvert | 52 ft | 159 | Good |
| K 52 (ibex Ave) over Creek No. 000000000310311 | 095452502 | 2013 | Slab | 93 ft | 150 | Good |
| FM over Rock River No. 000000000310750 | 095470603 | 1969 | Stringer/Multi-beam or Girder | 549 ft | 139 | Fair |
| Local over Floyd River No. 000000000311111 | 096432301 | 2005 | Stringer/Multi-beam or Girder | 229 ft | 139 | Good |
| L12 over No Name Creek No. 000000000308401 | 094441206 | 1982 | Culvert | 23 ft | 133 | Good |
| Local over Stream No. 000000000310151 | 095450102 | 1978 | Stringer/Multi-beam or Girder | 61 ft | 131 | Good |
| Local over W Fork Floyd Riv No. 000000000310380 | 095453303 | 1969 | Stringer/Multi-beam or Girder | 179 ft | 131 | Fair |
| Local over Branch of Rock River No. 000000000313291 | 097472301 | 1983 | Slab | 128 ft | 131 | Good |
| Local over Small No. 000000000364855 | 095453401 | 1987 | Culvert | 23 ft | 131 | Fair |
| Local over Small Stream No. 000000000364400 | 094430104 | 2001 | Culvert | 40 ft | 122 | Good |
| Local over Small Stream No. 000000000310271 | 0954517024230 | 1985 | Culvert | 31 ft | 120 | Good |
| FM over West Branch Floyd River No. 000000000310301 | 095452301 | 1983 | Stringer/Multi-beam or Girder | 151 ft | 120 | Good |
| Local over Small Stream No. 000000000312030 | 096463501 | 1938 | Stringer/Multi-beam or Girder | 62 ft | 120 | Fair |
| Local over Sm Stream No. 000000000313000 | 097462602 | 1977 | Stringer/Multi-beam or Girder | 46 ft | 120 | Fair |
| Local over Small No. 000000000311732 | 096453002 | 2010 | Culvert | 31 ft | 110 | Good |
| Local over Small No. 000000000311741 | 096453002 | 1978 | Culvert | 33 ft | 110 | Good |
| Local over Small Stream No. 000000000313201 | 097471302 | 1900 | Stringer/Multi-beam or Girder | 62 ft | 110 | Poor |
| Local over Stream No. 000000000313421 | 097482403 | 1985 | Culvert | 24 ft | 110 | Good |
| Local over Small No. 000000000365025 | 096460701 | 1954 | Culvert | 22 ft | 110 | Fair |
| Local over Creek No. 000000000309931 | 095440602 | 1990 | Culvert | 44 ft | 100 | Good |
| Local over Small Stream No. 000000000310341 | 095452702 | 1995 | Culvert | 26 ft | 100 | Good |
| Local over West Branch No. 000000000310350 | 095452702 | 1950 | Stringer/Multi-beam or Girder | 170 ft | 100 | Fair |
| Local over Small Stream No. 000000000311920 | 096461502 | 1980 | Stringer/Multi-beam or Girder | 76 ft | 100 | Fair |
| Local over Sm Stream No. 000000000312831 | 097453602 | 2001 | Culvert | 33 ft | 100 | Good |
| Fourth ST over Drainage No. 000000000006641 | 000000000 | 1992 | Stringer/Multi-beam or Girder | 46 ft | 91 | Good |
| FM over Indian Creek No. 000000000309481 | 094473401 | 1984 | Slab | 103 ft | 90 | Fair |
| Local over Small Stream No. 000000000310051 | 095442801 | 1999 | Culvert | 37 ft | 90 | Good |
| Local over Small Stream No. 000000000311951 | 096462002 | 1995 | Slab | 115 ft | 90 | Good |
| Local over Small No. 000000000364650 | 094473401 | 1988 | Culvert | 23 ft | 90 | Fair |
| Kennedy Ave over Small Stream No. 000000000366270 | 096440102 | 2016 | Culvert | 22 ft | 90 | Good |
| Local over Small No. 000000000309891 | 095440301 | 2009 | Culvert | 31 ft | 80 | Good |
| Local over Small Stream No. 000000000310460 | 095460901 | 1938 | Stringer/Multi-beam or Girder | 74 ft | 80 | Good |
| 360th ST over Small Stream No. 000000000311651 | 096452101 | 2000 | Culvert | 25 ft | 80 | Fair |
| FM over No Name Creek No. 000000000312121 | 096470801 | 1990 | Slab | 103 ft | 80 | Good |
| Local over Sm Stream No. 000000000312551 | 097442602 | 2001 | Culvert | 53 ft | 80 | Good |
| Local over Small No. 000000000312811 | 097453002 | 1980 | Stringer/Multi-beam or Girder | 32 ft | 80 | Good |
| Local over Small No. 000000000364680 | 096462601 | 1981 | Culvert | 22 ft | 80 | Fair |
| Local over Small No. 000000000364685 | 097440901 | 1978 | Culvert | 23 ft | 80 | Good |
| Local over Small Stream No. 000000000308470 | 094442101 | 1936 | Stringer/Multi-beam or Girder | 45 ft | 71 | Fair |
| Local over Small Stream No. 000000000308851 | 094452801 | 1982 | Stringer/Multi-beam or Girder | 61 ft | 71 | Good |
| FM over W Branch Floyd River No. 000000000308891 | 094453201 | 1977 | Stringer/Multi-beam or Girder | 255 ft | 71 | Good |
| Local over Six Mile Creek No. 000000000309220 | 094470502 | 1961 | Stringer/Multi-beam or Girder | 150 ft | 71 | Fair |
| Indian Ave over Small Stream No. 000000000310081 | 095443002 | 2014 | Slab | 93 ft | 71 | Good |
| FM over Creek No. 000000000310110 | 095443501 | 1968 | Culvert | 24 ft | 71 | Good |
| Local over Sixmile Creek No. 000000000310430 | 095460302 | 1937 | Stringer/Multi-beam or Girder | 75 ft | 71 | Good |
| Local over Small Stream No. 000000000311720 | 096453001 | 1947 | Stringer/Multi-beam or Girder | 32 ft | 71 | Fair |
Structure types in Sioux County
| Stringer/Multi-beam or Girder | 190 | 42.4% |
| Culvert | 172 | 38.4% |
| Slab | 85 | 19.0% |
| Tee Beam | 1 | 0.2% |
Other counties in Iowa
- Adair County 303
- Adams County 185
- Allamakee County 197
- Appanoose County 185
- Audubon County 204
- Benton County 373
- Black Hawk County 489
- Boone County 134
- Bremer County 267
- Buchanan County 320
- Buena Vista County 157
- Butler County 287
- Calhoun County 198
- Carroll County 249
- Cass County 296
- Cedar County 300
- Cerro Gordo County 268
- Cherokee County 244
- Chickasaw County 304
- Clarke County 168
- Clay County 154
- Clayton County 257
- Clinton County 375
- Crawford County 301
- Dallas County 206
- Davis County 163
- Decatur County 199
- Delaware County 294
- Des Moines County 173
- Dickinson County 83
- Dubuque County 346
- Emmet County 78
- Fayette County 362
- Floyd County 214
- Franklin County 227
- Fremont County 179
- Greene County 168
- Grundy County 288
- Guthrie County 263
- Hamilton County 165
- Hancock County 135
- Hardin County 241
- Harrison County 222
- Henry County 173
- Howard County 212
- Humboldt County 87
- Ida County 182
- Iowa County 239
- Jackson County 252
- Jasper County 382
- Jefferson County 156
- Johnson County 376
- Jones County 230
- Keokuk County 183
- Kossuth County 266
- Lee County 214
- Linn County 511
- Louisa County 151
- Lucas County 198
- Lyon County 273
- Madison County 225
- Mahaska County 221
- Marion County 217
- Marshall County 303
- Mills County 184
- Mitchell County 167
- Monona County 160
- Monroe County 131
- Montgomery County 209
- Muscatine County 144
- O'Brien County 263
- Osceola County 184
- Page County 191
- Palo Alto County 135
- Plymouth County 430
- Pocahontas County 198
- Polk County 548
- Pottawattamie County 557
- Poweshiek County 243
- Ringgold County 215
- Sac County 221
- Scott County 291
- Shelby County 207
- Story County 302
- Tama County 337
- Taylor County 220
- Union County 172
- Van Buren County 155
- Wapello County 190
- Warren County 238
- Washington County 207
- Wayne County 165
- Webster County 190
- Winnebago County 54
- Winneshiek County 342
- Woodbury County 455
- Worth County 116
- Wright County 175