Lyon County, Iowa bridges
Lyon County has 273 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 70 (26%) are rated poor. The most common type is culvert (40%).
- Bridges
- 273
- Good
- 38%
- Fair
- 36%
- Poor
- 26%
- 70 bridges
- Average age
- 50.5 yrs
- Posted or closed
- 56
Map of bridges in Lyon County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Lyon County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good38%(104)
Fair36%(99)
Poor26%(70)
When they were built
Busiest
- Ia 9 over StreamGood4,840 vehicles/day
- Ia 9 over StreamFair4,520 vehicles/day
- Ia 9 over Bloodrun CreekFair4,520 vehicles/day
- US 75 & Ia 9 over Moon CreekFair4,400 vehicles/day
- Ia 9 over Rock RiverFair3,920 vehicles/day
Longest
- Fair
- Good
- Poor
- Fair
- Ia 9 over Rock RiverFair353 ft
Oldest
- N 2nd Ave over Small StreamPoorBuilt 1900
- Local Road over Blood Run CreekPoorBuilt 1900
- Local Road over Little Rock RiverPoorBuilt 1900
- Local Road over Little Rock RiverPoorBuilt 1900
- Local over Rock RiverPoorBuilt 1900
All bridges in Lyon County
Busiest first · showing 1–200 of 273| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| Ia 9 over Stream No. 000000000034591 | 0.2 Mi. W of Ia 182 | 1980 | Culvert | 25 ft | 4,840 | Good |
| Ia 9 over Stream No. 000000000034560 | 200 Ft. S of Jct. SR K12 | 1940 | Culvert | 29 ft | 4,520 | Fair |
| Ia 9 over Bloodrun Creek No. 000000000034571 | 0.3 Mi. E of Jct. SR K12 | 1977 | Slab | 113 ft | 4,520 | Fair |
| US 75 & Ia 9 over Moon Creek No. 000000000034535 | 0.5 Mi. E of W Jct. US 75 | 1972 | Slab | 134 ft | 4,400 | Fair |
| Ia 9 over Rock River No. 000000000034645 | 0.5 Mi. E of E Jct. US 75 | 1974 | Stringer/Multi-beam or Girder | 353 ft | 3,920 | Fair |
| Ia 9 over Mud Creek No. 000000000034601 | 0.2 Mi. W of Jct. SR K30 | 1975 | Stringer/Multi-beam or Girder | 184 ft | 3,270 | Fair |
| Ia 9 over Stream No. 000000000034611 | 0.1 Mi. E of S.R. K30 | 1982 | Stringer/Multi-beam or Girder | 163 ft | 3,180 | Fair |
| Ia 9 over Over BNSF RR No. 000000000034621 | 0.2 Mi. E of SR K30 | 1982 | Stringer/Multi-beam or Girder | 171 ft | 3,180 | Fair |
| Ia 9 over Moon Creek No. 000000000034625 | 0.3 Mi. W of W Jct. US 75 | 1974 | Culvert | 29 ft | 3,180 | Fair |
| US 75 over Rock River No. 000000000034521 | 0.2 Mi. N of S JCT SR A34 | 1975 | Stringer/Multi-beam or Girder | 329 ft | 2,620 | Fair |
| US 75 over Little Rock River No. 000000000034511 | 0.4 Mi. S of SR A44 | 1975 | Stringer/Multi-beam or Girder | 278 ft | 2,610 | Fair |
| Ia 182 over Stream No. 000000000034690 | 0.2 MI N of Jct. SR A34 | 1955 | Culvert | 33 ft | 2,500 | Fair |
| Ia 182 over Stream No. 000000000034700 | 2.5 Mi. S of Jct. Ia 9 | 1955 | Culvert | 32 ft | 2,500 | Fair |
| US 18 over Dry Run Creek No. 000000000034501 | 0.7 Mi. W of SR A50 | 1975 | Culvert | 33 ft | 2,240 | Fair |
| US 18 over Big Sioux River No. 000000000034481 | At S.Dakota Border | 1978 | Stringer/Multi-beam or Girder | 580 ft | 2,130 | Fair |
| US 18 over Drainage Ditch No. 000000000034491 | 3.8 Mi. W of Ia 182 | 1975 | Slab | 113 ft | 2,130 | Fair |
| Ia 9 over Little Rock River No. 000000000034651 | 1.0 Mi. W of SR L26 | 1987 | Stringer/Multi-beam or Girder | 246 ft | 1,730 | Fair |
| A18 (140th St) over Big Sioux River No. 000000000231610 | 100493503 | 1963 | Stringer/Multi-beam or Girder | 401 ft | 1,607 | Fair |
| US 75 over Drainage Ditch No. 000000000034550 | 3.8 Mi. N of N Jct. Ia 9 | 1935 | Culvert | 25 ft | 1,500 | Fair |
| FM over Lizard Creek No. 000000000228951 | 098463302 | 1975 | Culvert | 26 ft | 1,416 | Fair |
| W Daktoa Ave over Rio Grande Creek No. 000000000505015 | 098440201 | 2011 | Slab | 91 ft | 1,349 | Good |
| A42 240th ST over Albertson Creek No. 000000000229101 | 098472201 | 2019 | Slab | 101 ft | 1,176 | Good |
| FM over Johnson Creek No. 000000000228271 | 098440501 | 2006 | Slab | 87 ft | 1,168 | Good |
| Virginia ST over Little Rock River No. 000000000005530 | 098440102 | 1949 | Stringer/Multi-beam or Girder | 153 ft | 1,167 | Fair |
| K42 Garfield Ave over Little Rock River No. 000000000228981 | 098463602 | 2011 | Stringer/Multi-beam or Girder | 409 ft | 1,087 | Good |
| A26 (180th St) over Big Sioux River No. 000000000230665 | 099482103 | 1977 | Stringer/Multi-beam or Girder | 402 ft | 1,017 | Poor |
| FM over Klondike Creek No. 000000000230675 | 099482105 | 1962 | Stringer/Multi-beam or Girder | 80 ft | 1,017 | Poor |
| 210th ST over Mud Creek No. 000000000034661 | 098460505 | 2011 | Stringer/Multi-beam or Girder | 204 ft | 998 | Fair |
| FM over Rock River No. 000000000228870 | 098462402 | 1966 | Stringer/Multi-beam or Girder | 278 ft | 977 | Poor |
| A50 260th ST over Small Stream No. 000000000229515 | 098483103 | 1968 | Culvert | 20 ft | 888 | Fair |
| A50 (bridge St) over Big Sioux River No. 000000000229541 | 098492519 | 1971 | Stringer/Multi-beam or Girder | 348 ft | 888 | Fair |
| FM over Emery Creek No. 000000000228461 | 098450101 | 1977 | Culvert | 38 ft | 818 | Fair |
| FM over Nelson Creek No. 000000000229520 | 098483204 | 1966 | Stringer/Multi-beam or Girder | 80 ft | 789 | Poor |
| FM over Argo Slough No. 000000000229621 | 099431202 | 1977 | Culvert | 38 ft | 789 | Fair |
| FM over Burr Oak Creek No. 000000000228660 | 098453502 | 1961 | Culvert | 32 ft | 758 | Fair |
| FM over Small Stream No. 000000000230450 | 099472401 | 1968 | Culvert | 32 ft | 729 | Fair |
| FM over Overflow No. 000000000227950 | 098430501 | 1969 | Culvert | 36 ft | 718 | Poor |
| A34 210th ST over Little Rock River No. 000000000227961 | 098430501 | 2015 | Stringer/Multi-beam or Girder | 277 ft | 718 | Good |
| FM over Little Rock River No. 000000000228640 | 098453101 | 1954 | Stringer/Multi-beam or Girder | 200 ft | 709 | Poor |
| A34 210th ST over Kelly Creek No. 000000000034671 | 098460401 | 2017 | Slab | 81 ft | 698 | Good |
| A42 240th ST over Mud Creek No. 000000000228821 | 098462201 | 2003 | Stringer/Multi-beam or Girder | 263 ft | 698 | Good |
| FM over BNSF RR No. 000000000228831 | 098462201 | 2003 | Stringer/Multi-beam or Girder | 223 ft | 698 | Good |
| FM over Mud Creek No. 000000000230200 | 099462003 | 1968 | Slab | 126 ft | 688 | Poor |
| N Union Street over Moon Creek No. 000000000009981 | 100453302 | 2019 | Slab | 91 ft | 670 | Good |
| East ST over Tom Creek No. 000000000010001 | 100453402 | 2023 | Stringer/Multi-beam or Girder | 192 ft | 660 | Good |
| FM over Putnam Creek No. 000000000228411 | 098443301 | 1977 | Culvert | 38 ft | 649 | Fair |
| A52 260th ST over Otter Creek No. 000000000228431 | 098443401 | 2020 | Stringer/Multi-beam or Girder | 257 ft | 649 | Good |
| A34 210th Ave over Willow Creek No. 000000000034681 | 098450601 | 2017 | Slab | 121 ft | 578 | Good |
| FM over West Rat Creek No. 000000000227921 | 098430101 | 2007 | Culvert | 30 ft | 578 | Good |
| FM over Mud Creek No. 000000000228690 | 098460406 | 1961 | Stringer/Multi-beam or Girder | 111 ft | 509 | Poor |
| FM over Small Stream No. 000000000228750 | 098460902 | 1946 | Culvert | 21 ft | 509 | Fair |
| L14 over Turner Creek No. 000000000230870 | 100441418 | 1964 | Stringer/Multi-beam or Girder | 80 ft | 509 | Poor |
| L14 over Tom Creek No. 000000000230910 | 100442304 | 1964 | Stringer/Multi-beam or Girder | 79 ft | 509 | Poor |
| L14 over Dry Run Creek No. 000000000230940 | 100442606 | 1964 | Stringer/Multi-beam or Girder | 70 ft | 509 | Poor |
| FM over Dry Run Creek No. 000000000230020 | 099452302 | 1964 | Stringer/Multi-beam or Girder | 55 ft | 469 | Poor |
| FM over Small Stream No. 000000000230110 | 099460702 | 1961 | Culvert | 20 ft | 450 | Fair |
| FM over Mud Creek No. 000000000230360 | 099470104 | 1970 | Stringer/Multi-beam or Girder | 150 ft | 450 | Poor |
| K30 Dove Ave over Sykes Creek No. 000000000230371 | 099470104 | 2019 | Slab | 101 ft | 450 | Good |
| FM over Taft Creek No. 000000000229710 | 099432402 | 1955 | Culvert | 20 ft | 439 | Fair |
| FM over Blood Run Creek No. 000000000231411 | 100481201 | 2000 | Slab | 113 ft | 439 | Good |
| FM over Rat Creek No. 000000000228011 | 098431301 | 1971 | Culvert | 36 ft | 399 | Fair |
| FM over Lizard Creek No. 000000000228940 | 098463301 | 1970 | Stringer/Multi-beam or Girder | 80 ft | 399 | Fair |
| FM over Rock River No. 000000000228960 | 098463501 | 1970 | Stringer/Multi-beam or Girder | 348 ft | 399 | Poor |
| Section Line ST over Little Rock River No. 000000000007300 | 100432502 | 1951 | Stringer/Multi-beam or Girder | 182 ft | 383 | Good |
| FM over Little Rock River No. 000000000228550 | 098451404 | 1955 | Stringer/Multi-beam or Girder | 200 ft | 369 | Poor |
| FM over Kanaranzi Creek No. 000000000231110 | 100452202 | 1959 | Stringer/Multi-beam or Girder | 202 ft | 369 | Poor |
| N Boone ST over Moon Creek No. 000000000009990 | 100453304 | 1958 | Slab | 78 ft | 354 | Poor |
| FM over Blood Run Creek No. 000000000231511 | 100482204 | 1971 | Slab | 128 ft | 350 | Fair |
| N 2nd Ave over Small Stream No. 000000000502520 | 100453304 | 1900 | Culvert | 60 ft | 346 | Poor |
| Local Road over Rock River No. 000000000230010 | 099451501 | 1968 | Stringer/Multi-beam or Girder | 252 ft | 337 | Poor |
| Michigan Ave over Rio Grande Creek No. 000000000005511 | 098440205 | 1999 | Stringer/Multi-beam or Girder | 71 ft | 326 | Good |
| FM over Klondike Creek No. 000000000230630 | 099481502 | 1966 | Slab | 100 ft | 309 | Poor |
| FM over Toole Creek No. 000000000231230 | 100461902 | 1970 | Culvert | 38 ft | 290 | Fair |
| FM over Riggs Creek No. 000000000231290 | 100471204 | 1970 | Culvert | 36 ft | 290 | Poor |
| FM over Mud Creek No. 000000000231300 | 100471301 | 1970 | Slab | 125 ft | 290 | Poor |
| K60 Indian Ave over Tom Creek No. 000000000230981 | 100443002 | 2022 | Slab | 210 ft | 279 | Good |
| FM over Dry Run Creek No. 000000000229830 | 099440702 | 1958 | Culvert | 24 ft | 270 | Fair |
| FM over Emery Creek No. 000000000229931 | 099443002 | 1980 | Culvert | 63 ft | 270 | Fair |
| FM over West Rat Creek No. 000000000228041 | 098431501 | 1977 | Culvert | 38 ft | 259 | Fair |
| W Harris ST over Rio Grande Creek No. 000000000005450 | 098440213 | 1966 | Stringer/Multi-beam or Girder | 57 ft | 254 | Fair |
| FM over Small Stream No. 000000000230191 | 099461902 | 2005 | Culvert | 35 ft | 240 | Fair |
| FM over Small Stream No. 000000000230281 | 099463002 | 1972 | Culvert | 24 ft | 240 | Poor |
| Calumet Ave over Rio Grande Creek No. 000000000005471 | 098440211 | 2011 | Culvert | 29 ft | 232 | Good |
| Ohio Ave over Rio Grande Creek No. 000000000005481 | 098440203 | 1995 | Slab | 28 ft | 232 | Good |
| W Indiana Ave over Rio Grande Creek No. 000000000005490 | 098440209 | 1940 | Stringer/Multi-beam or Girder | 23 ft | 232 | Poor |
| Minnesota Ave over Rio Grande Creek No. 000000000005500 | 098440207 | 1950 | Stringer/Multi-beam or Girder | 31 ft | 232 | Fair |
| Sidney ST over Rio Grande Creek No. 000000000005521 | 098440206 | 2011 | Culvert | 29 ft | 232 | Good |
| FM over West Rat Creek No. 000000000227930 | 098430102 | 1965 | Stringer/Multi-beam or Girder | 43 ft | 230 | Poor |
| K60(INDIAN Ave) over Little Rock River No. 000000000228300 | 098440702 | 1960 | Stringer/Multi-beam or Girder | 206 ft | 230 | Poor |
| FM over Plum Creek No. 000000000229300 | 098480102 | 1968 | Culvert | 38 ft | 210 | Poor |
| Jefferson ST over Mclaren Creek No. 000000000503140 | 098471800 | 1968 | Culvert | 32 ft | 201 | Fair |
| FM over Rat Creek No. 000000000228070 | 098432202 | 1966 | Slab | 124 ft | 199 | Poor |
| FM over Little Otter Creek No. 000000000228200 | 098433402 | 1968 | Slab | 128 ft | 199 | Poor |
| FM over Overflow No. 000000000228220 | 098433402 | 1968 | Slab | 100 ft | 199 | Poor |
| FM over Small Stream No. 000000000229661 | 099431901 | 1975 | Culvert | 26 ft | 190 | Fair |
| FM over Little Rock River No. 000000000229681 | 099432001 | 1973 | Stringer/Multi-beam or Girder | 175 ft | 190 | Fair |
| FM over Rock River No. 000000000231091 | 100452003 | 1980 | Stringer/Multi-beam or Girder | 273 ft | 180 | Fair |
| FM over Blood Run Creek No. 000000000231441 | 100481902 | 1971 | Stringer/Multi-beam or Girder | 138 ft | 180 | Poor |
| Local over Little Rock River No. 000000000227971 | 098430604 | 1982 | Stringer/Multi-beam or Girder | 230 ft | 143 | Fair |
| FM over Little Rock River No. 000000000230840 | 100433503 | 1968 | Stringer/Multi-beam or Girder | 176 ft | 131 | Poor |
| Local Road over Mud Creek No. 000000000230181 | 099461801 | 1971 | Stringer/Multi-beam or Girder | 152 ft | 112 | Fair |
| Local over Mud Creek No. 000000000231400 | 100473601 | 1963 | Stringer/Multi-beam or Girder | 147 ft | 112 | Fair |
| Local Road over Trib to Mud Creek No. 000000000364795 | 099460202 | 2004 | Culvert | 24 ft | 112 | Good |
| Birch Ave over Klondike Creek No. 000000000230621 | 099481402 | 2021 | Slab | 111 ft | 103 | Good |
| FM over Little Rock River No. 000000000229561 | 099430302 | 1975 | Stringer/Multi-beam or Girder | 230 ft | 100 | Fair |
| FM over Hess Creek No. 000000000229790 | 099433302 | 1967 | Culvert | 30 ft | 100 | Fair |
| FM over Taft Creek No. 000000000229800 | 099433302 | 1967 | Culvert | 35 ft | 100 | Fair |
| FM over Kanaranzi Creek No. 000000000231101 | 100452201 | 1980 | Stringer/Multi-beam or Girder | 164 ft | 100 | Good |
| Coolidge Ave over Small No. 000000000365165 | 098470302 | 1993 | Culvert | 20 ft | 100 | Good |
| FM over Albertson Creek No. 000000000365170 | 0984715 | 1973 | Culvert | 32 ft | 100 | Fair |
| Cherry Ave over Plum Creek No. 000000000229021 | 98470602 | 2018 | Box Beam or Girders - Multiple | 40 ft | 90 | Good |
| FM over Tom Creek No. 000000000230791 | 100432002 | 1972 | Culvert | 42 ft | 90 | Fair |
| Local Road over Blood Run Creek No. 000000000231570 | 100482302 | 1900 | Stringer/Multi-beam or Girder | 48 ft | 90 | Poor |
| 240th ST over Rat Creek No. 000000000228091 | 098432401 | 2020 | Box Beam or Girders - Multiple | 51 ft | 81 | Good |
| Local Road over Little Rock River No. 000000000228311 | 098441501 | 1997 | Stringer/Multi-beam or Girder | 273 ft | 81 | Good |
| Local Road over Gilbertson Creek No. 000000000230441 | 099471902 | 1975 | Culvert | 26 ft | 81 | Fair |
| Local over Small Stream No. 000000000363245 | 100463201 | 1990 | Culvert | 22 ft | 81 | Good |
| 230th ST over Mclaren Creek No. 000000000229421 | 098481301 | 2014 | Culvert | 25 ft | 72 | Good |
| 230th ST over Mclaren Creek No. 000000000229441 | 098481401 | 2014 | Culvert | 25 ft | 72 | Good |
| 110th ST over Toole Creek No. 000000000231211 | 100461801 | 2017 | Culvert | 34 ft | 72 | Good |
| Marsh Ave over Little Otter Creek No. 000000000228251 | 098433602 | 2019 | Stringer/Multi-beam or Girder | 189 ft | 71 | Good |
| Local Road over Little Rock River No. 000000000229570 | 099430901 | 1900 | Stringer/Multi-beam or Girder | 105 ft | 71 | Poor |
| FM over Spring Creek No. 000000000230141 | 099461002 | 1971 | Culvert | 24 ft | 71 | Fair |
| FM over Small Stream No. 000000000230881 | 100442001 | 1978 | Channel Beam | 29 ft | 71 | Fair |
| FM over Turner Creek No. 000000000230901 | 100442201 | 1980 | Slab | 100 ft | 71 | Fair |
| Local Road over Little Rock River No. 000000000228630 | 098452907 | 1900 | Truss - Thru | 120 ft | 62 | Poor |
| Local over Rock River No. 000000000228840 | 098462303 | 1900 | Truss - Thru | 192 ft | 62 | Poor |
| Local over Over Flow No. 000000000228851 | 0984623 | 2004 | Culvert | 29 ft | 62 | Good |
| Local Road over Lizard Creek No. 000000000228880 | 098462701 | 1900 | Stringer/Multi-beam or Girder | 78 ft | 62 | Poor |
| Local Road over Mud Creek No. 000000000228885 | 098462701 | 1962 | Stringer/Multi-beam or Girder | 162 ft | 62 | Fair |
| Local over Plum Creek No. 000000000229381 | 098481101 | 1979 | Culvert | 38 ft | 62 | Fair |
| Able Blvd over Mclaren Creek No. 000000000229461 | 098481501 | 2016 | Slab | 103 ft | 62 | Fair |
| Local Road over Small Stream No. 000000000230350 | 099470102 | 1900 | Stringer/Multi-beam or Girder | 31 ft | 62 | Poor |
| Local Road over Pinney Creek No. 000000000230430 | 099471802 | 1900 | Stringer/Multi-beam or Girder | 30 ft | 62 | Poor |
| Local Road over Turner Creek No. 000000000230851 | 100441101 | 2006 | Culvert | 24 ft | 62 | Good |
| Local Road over Kanaranzi Creek No. 000000000231061 | 100451103 | 2010 | Slab | 160 ft | 62 | Good |
| Local Road over Moon Creek No. 000000000231260 | 100463601 | 1900 | Stringer/Multi-beam or Girder | 22 ft | 62 | Poor |
| Local Road over Small No. 000000000364810 | 100483302 | 2004 | Culvert | 24 ft | 62 | Good |
| FM over Hefferman Creek No. 000000000229221 | 098473402 | 1978 | Culvert | 38 ft | 60 | Fair |
| FM over Small Stream No. 000000000230760 | 100431901 | 1978 | Culvert | 25 ft | 60 | Fair |
| FM over Tom Creek No. 000000000230811 | 100432201 | 1977 | Culvert | 25 ft | 60 | Fair |
| FM over Tom Creek No. 000000000230821 | 100432202 | 1980 | Culvert | 38 ft | 60 | Fair |
| Local Road over Rat Creek No. 000000000228100 | 098432402 | 1900 | Stringer/Multi-beam or Girder | 45 ft | 50 | Fair |
| FM over Rat Creek No. 000000000228141 | 098433301 | 2008 | Stringer/Multi-beam or Girder | 62 ft | 50 | Fair |
| FM over Little Rock River No. 000000000228330 | 098441602 | 1950 | Stringer/Multi-beam or Girder | 201 ft | 50 | Fair |
| FM over Small Stream No. 000000000228560 | 098452101 | 1978 | Culvert | 26 ft | 50 | Fair |
| Harrison Ave over Burr Oak Creek No. 000000000228651 | 098453402 | 2019 | Culvert | 53 ft | 50 | Good |
| Ibex Ave over Burr Oak Creek No. 000000000228671 | 098453602 | 2019 | Culvert | 35 ft | 50 | Good |
| 210th ST over Plum Creek No. 000000000229011 | 098470601 | 2013 | Culvert | 29 ft | 50 | Good |
| 260th ST over Albertson Creek No. 000000000229231 | 098473501 | 2017 | Box Beam or Girders - Multiple | 52 ft | 50 | Good |
| Local Road over Johnson Creek No. 000000000229901 | 099442701 | 1995 | Culvert | 23 ft | 50 | Good |
| Local Road over Willow Creek No. 000000000230050 | 099453102 | 1940 | Truss - Thru | 49 ft | 50 | Poor |
| FM over Kelly Creek No. 000000000230330 | 099463402 | 1957 | Culvert | 24 ft | 50 | Fair |
| Local Road over Klondike Creek No. 000000000230381 | 099470601 | 1991 | Culvert | 32 ft | 50 | Good |
| Jackson Ave over Tom Creek No. 000000000230891 | 100442102 | 2017 | Slab | 151 ft | 50 | Good |
| Local RD over Mud Creek No. 000000000231351 | 100472403 | 1979 | Slab | 125 ft | 50 | Fair |
| Local Road over Small Stream No. 000000000231371 | 100472502 | 1994 | Culvert | 37 ft | 50 | Good |
| K14 Buchanan Ave over Blood Run Creek No. 000000000231421 | 100481302 | 2019 | Box Beam or Girders - Multiple | 52 ft | 50 | Good |
| Ashley Ave over Peterson Creek No. 000000000365181 | 099480902 | 2022 | Culvert | 26 ft | 50 | Good |
| Dogwood Ave over Small Stream No. 000000000366125 | 100472402 | 2015 | Culvert | 22 ft | 50 | Good |
| Local Road over Mud Creek No. 000000000228801 | 098461601 | 1900 | Stringer/Multi-beam or Girder | 150 ft | 49 | Fair |
| Jefferson Ave over Small Stream No. 000000000228371 | 098442302 | 2014 | Culvert | 23 ft | 46 | Good |
| 220th ST over Emery Creek No. 000000000228521 | 098451101 | 2017 | Box Beam or Girders - Multiple | 52 ft | 46 | Good |
| Ibex Ave over Little Rock River No. 000000000228531 | 098451202 | 1978 | Stringer/Multi-beam or Girder | 278 ft | 46 | Fair |
| Ibex Ave over Emery Creek No. 000000000228541 | 098451202 | 2017 | Box Beam or Girders - Multiple | 52 ft | 46 | Good |
| Fig Ave over Lizard Creek No. 000000000228891 | 0984622702 | 2014 | Culvert | 26 ft | 46 | Good |
| Local Road over Hefferman Creek No. 000000000229200 | 098473301 | 1900 | Stringer/Multi-beam or Girder | 47 ft | 46 | Poor |
| 220th ST over Plum Creek No. 000000000229331 | 098480504 | 2021 | Culvert | 46 ft | 46 | Good |
| Local Road over Argo Slough No. 000000000229640 | 099431602 | 1900 | Stringer/Multi-beam or Girder | 46 ft | 46 | Poor |
| Local Road over Zoar Creek No. 000000000229821 | 099433402 | 1992 | Culvert | 23 ft | 46 | Good |
| Local Road over Mud Creek No. 000000000230090 | 099460701 | 1900 | Stringer/Multi-beam or Girder | 122 ft | 46 | Poor |
| Local over Stream No. 000000000230301 | 099463202 | 1981 | Culvert | 22 ft | 46 | Fair |
| Local Road over Trib to Mud Creek No. 000000000364800 | 099461001 | 2004 | Culvert | 28 ft | 46 | Good |
| FM over Allen Creek No. 000000000228451 | 098443601 | 1978 | Culvert | 51 ft | 45 | Fair |
| FM over Argo Slough No. 000000000229581 | 099431002 | 1980 | Culvert | 52 ft | 45 | Fair |
| 200th ST over Taft Creek No. 000000000229781 | 099433301 | 2014 | Culvert | 29 ft | 45 | Good |
| FM over Emery Creek No. 000000000229860 | 099441502 | 1970 | Culvert | 24 ft | 45 | Fair |
| FM over Small Stream No. 000000000230751 | 100431702 | 1977 | Culvert | 25 ft | 45 | Good |
| FM over Toole Creek No. 000000000231221 | 100461901 | 1979 | Culvert | 38 ft | 45 | Fair |
| Log Avenue over West Rat Creek No. 000000000228001 | 098431102 | 2020 | Box Beam or Girders - Multiple | 45 ft | 41 | Good |
| Local over Stream No. 000000000228421 | 098443302 | 1981 | Culvert | 33 ft | 41 | Fair |
| Local Road over Small Stream No. 000000000228720 | 098460701 | 1900 | Stringer/Multi-beam or Girder | 30 ft | 41 | Poor |
| Local Road over Albertson Creek No. 000000000229070 | 098471601 | 1900 | Stringer/Multi-beam or Girder | 47 ft | 41 | Poor |
| Local Road over Albertson Creek No. 000000000229121 | 098472302 | 2008 | Stringer/Multi-beam or Girder | 77 ft | 41 | Fair |
| K14 Beech Ave over Plum Creek No. 000000000229321 | 098480306 | 1977 | Culvert | 38 ft | 41 | Fair |
| Local over Plum Creek No. 000000000229361 | 098481003 | 1979 | Culvert | 38 ft | 41 | Fair |
| Log Ave over Hess Creek No. 000000000229721 | 099432602 | 2015 | Culvert | 21 ft | 41 | Good |
| Local Road over Klondike Creek No. 000000000230510 | 099480104 | 1900 | Stringer/Multi-beam or Girder | 47 ft | 41 | Poor |
| 160th ST over Burns Creek No. 000000000230551 | 099481201 | 2017 | Culvert | 37 ft | 41 | Good |
| Local Road over Klondike Creek No. 000000000230560 | 099481201 | 1900 | Stringer/Multi-beam or Girder | 62 ft | 41 | Poor |
| FM over Emery Creek No. 000000000229881 | 099442001 | 1978 | Culvert | 34 ft | 40 | Good |
| FM over Johnson Creek No. 000000000229911 | 099442702 | 1980 | Culvert | 26 ft | 40 | Good |
| Local Road over Otter Creek No. 000000000228391 | 098442800 | 2010 | Stringer/Multi-beam or Girder | 78 ft | 35 | Fair |
| Local RD over Argo Slough No. 000000000229611 | 099431201 | 2003 | Culvert | 25 ft | 35 | Good |
| Local Road over Emery Creek No. 000000000229920 | 099443001 | 1900 | Stringer/Multi-beam or Girder | 32 ft | 35 | Poor |
| Local Road over Small Stream Overflow No. 000000000230460 | 099472502 | 1970 | Stringer/Multi-beam or Girder | 20 ft | 35 | Fair |
| Local Road over Creek No. 000000000364510 | 100433102 | 1989 | Culvert | 25 ft | 35 | Good |
| Kennedy Ave over Dry Run Creek No. 000000000364935 | 100443602 | 2005 | Culvert | 24 ft | 35 | Good |
| Buchanan Ave over Mclaren Creek No. 000000000365175 | 098481202 | 1992 | Culvert | 20 ft | 35 | Good |
| Local over Small No. 000000000365185 | 100433102 | 1989 | Culvert | 20 ft | 35 | Good |
Structure types in Lyon County
| Culvert | 109 | 39.9% |
| Stringer/Multi-beam or Girder | 106 | 38.8% |
| Slab | 40 | 14.7% |
| Box Beam or Girders - Multiple | 11 | 4.0% |
| Truss - Thru | 5 | 1.8% |
| Channel Beam | 2 | 0.7% |
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
- 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
- Sioux County 448
- 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