troubled bridges

8/12/2019 Troubled Bridges

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Rank County Total Bridges SD/FO SD/FO1 Wayne 1,026 549 54%2 Emmet 31 15 48%3 Genesee 371 165 44%

4 Ingham 237 101 43%5 Marquette 133 56 42%6 Washtenaw 250 96 38%7 Livingston 156 54 35%8 Oakland 468 159 34%9 Calhoun 210 68 32%

10 Lake 28 9 32%11 Mason 66 21 32%12 Saginaw 311 98 32%13 Charlevoix 16 5 31%14 Missaukee 42 13 31%15 Iron 46 13 28%16 Benzie 22 6 27%17 Newaygo 63 17 27%18 Muskegon 142 38 27%19 Bay 157 42 27%20 Monroe 296 79 27%

21 Kalamazoo 147 39 27%22 Branch 117 31 26%23 Macomb 405 107 26%24 Cass 50 13 26%25 Grand Traverse 31 8 26%26 Antrim 16 4 25%27 Isabella 154 38 25%28 Arenac 79 19 24%29 Jackson 158 38 24%30 Gratiot 165 39 24%31 Gogebic 95 22 23%32 Luce 26 6 23%33 Alger 48 11 23%34 Ionia 119 27 23%35 Midland 121 27 22%


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36 St. Clair 320 70 22%37 Hillsdale 102 22 22%38 Berrien 264 55 21%39 Menominee 92 19 21%

40 Allegan 233 47 20%41 Ontonagon 56 11 20%42 Lapeer 159 31 19%43 Kent 515 100 19%44 Clinton 215 41 19%45 Delta 84 16 19%46 St. Joseph 126 24 19%47 Eaton 197 37 19%48 Crawford 49 9 18%49 Chippewa 99 18 18%50 Manistee 33 6 18%51 Mecosta 72 13 18%52 Barry 45 8 18%53 Kalkaska 12 2 17%54 Leelanau 6 1 17%55 Gladwin 61 10 16%56 Van Buren 122 20 16%

57 Schoolcraft 37 6 16%58 Cheboygan 70 11 16%59 Lenawee 223 35 16%60 Alcona 26 4 15%61 Roscommon 39 6 15%62 Otsego 21 3 14%63 Sanilac 171 24 14%64 Shiawassee 162 22 14%65 Oceana 96 13 14%66 Iosco 46 6 13%67 Wexford 63 8 13%68 Ogema 32 4 13%69 Houghton 45 5 11%70 Presque Isle 37 4 11%71 Montcalm 119 12 10%


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Source: MichiganInfrastructureandTransportationAssociationanalysis of 2014National BridgeInventory


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Rank County Total Bridges SD/FO % SD/FO1 Wayne 1026 549 54%2 Genesee 371 165 44%3 Oakland 468 159 34%

4 Macomb 405 107 26%5 Ingham 237 101 43%6 Kent 515 100 19%7 Saginaw 311 98 32%8 Washtenaw 250 96 38%9 Monroe 296 79 27%

10 St. Clair 320 70 22%11 Calhoun 210 68 32%12 Marquette 133 56 42%13 Berrien 264 55 21%14 Livingston 156 54 35%15 Allegan 233 47 20%16 Bay 157 42 27%17 Clinton 215 41 19%18 Gratiot 165 39 24%19 Kalamazoo 147 39 27%20 Jackson 158 38 24%

21 Isabella 154 38 25%22 Muskegon 142 38 27%23 Eaton 197 37 19%24 Lenawee 223 35 16%25 Lapeer 159 31 19%26 Branch 117 31 26%27 Midland 121 27 22%28 Ionia 119 27 23%29 Sanilac 171 24 14%30 St. Joseph 126 24 19%31 Tuscola 233 22 9%32 Shiawassee 162 22 14%33 Hillsdale 102 22 22%34 Gogebic 95 22 23%35 Mason 66 21 32%


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36 Van Buren 122 20 16%37 Ottawa 244 19 8%38 Menominee 92 19 21%39 Arenac 79 19 24%

40 Chippewa 99 18 18%41 Newaygo 63 17 27%42 Huron 191 16 8%43 Delta 84 16 19%44 Emmet 31 15 48%45 Oceana 96 13 14%46 Mecosta 72 13 18%47 Cass 50 13 26%48 Iron 46 13 28%49 Missaukee 42 13 31%50 Montcalm 119 12 10%51 Cheboygan 70 11 16%52 Ontonagon 56 11 20%53 Alger 48 11 23%54 Gladwin 61 10 16%55 Crawford 49 9 18%56 Lake 28 9 32%

57 Osceola 102 8 8%58 Clare 85 8 9%59 Wexford 63 8 13%60 Barry 45 8 18%61 Grand Traverse 31 8 26%62 Baraga 60 6 10%63 Iosco 46 6 13%64 Roscommon 39 6 15%65 Schoolcraft 37 6 16%66 Manistee 33 6 18%67 Luce 26 6 23%68 Benzie 22 6 27%69 Houghton 45 5 11%70 Charlevoix 16 5 31%71 Mackinac 55 4 7%


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72 Presque Isle 37 4 11%73 Ogema 32 4 13%74 Alcona 26 4 15%75 Antrim 16 4 25%

76 Dickinson 35 3 9%77 Otsego 21 3 14%78 Kalkaska 12 2 17%79 Oscoda 15 1 7%80 Leelanau 6 1 17%81 Alpena 32 0 0%82 Montmorency 16 0 0%83 Keweenaw 10 0 0%

10,929 2,843 26%


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County otal Bridge SD/FO % SD/FOAlcona 26 4 15%Alger 48 11 23%Allegan 233 47 20%

Alpena 32 0 0%Antrim 16 4 25%Arenac 79 19 24%Baraga 60 6 10%Barry 45 8 18%Bay 157 42 27%Benzie 22 6 27%Berrien 264 55 21%Branch 117 31 26%Calhoun 210 68 32%Cass 50 13 26%Charlevoix 16 5 31%Cheboygan 70 11 16%Chippewa 99 18 18%Clare 85 8 9%Clinton 215 41 19%Crawford 49 9 18%

Delta 84 16 19%Dickinson 35 3 9%Eaton 197 37 19%Emmet 31 15 48%Genesee 371 165 44%Gladwin 61 10 16%Gogebic 95 22 23%Grand Travers 31 8 26%Gratiot 165 39 24%Hillsdale 102 22 22%Houghton 45 5 11%Huron 191 16 8%Ingham 237 101 43%Ionia 119 27 23%Iosco 46 6 13%


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Iron 46 13 28%Isabella 154 38 25%Jackson 158 38 24%Kalamazoo 147 39 27%

Kalkaska 12 2 17%Kent 515 100 19%Keweenaw 10 0 0%Lake 28 9 32%Lapeer 159 31 19%Leelanau 6 1 17%Lenawee 223 35 16%Livingston 156 54 35%Luce 26 6 23%Mackinac 55 4 7%Macomb 405 107 26%Manistee 33 6 18%Marquette 133 56 42%Mason 66 21 32%Mecosta 72 13 18%Menominee 92 19 21%Midland 121 27 22%

Missaukee 42 13 31%Monroe 296 79 27%Montcalm 119 12 10%Montmorency 16 0 0%Muskegon 142 38 27%Newaygo 63 17 27%Oakland 468 159 34%Oceana 96 13 14%Ogema 32 4 13%Ontonagon 56 11 20%Osceola 102 8 8%Oscoda 15 1 7%Otsego 21 3 14%Ottawa 244 19 8%Presque Isle 37 4 11%


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Roscommon 39 6 15%Saginaw 311 98 32%Sanilac 171 24 14%Schoolcraft 37 6 16%

Shiawassee 162 22 14%St. Clair 320 70 22%St. Joseph 126 24 19%Tuscola 233 22 9%Van Buren 122 20 16%Washtenaw 250 96 38%Wayne 1026 549 54%Wexford 63 8 13%

10,929 2,843 26%

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