| Sth 23-sth 81-main over Pecatonica River | 1968 | 10,400 | Fair |
| Ush 151 over Galena R Headwaters | 2004 | 9,800 | Fair |
| Ush 151 NB over Cottage Inn Branch | 2002 | 5,250 | Fair |
| Ush 151 NB over Lrd Private Drive/pecato | 2002 | 5,250 | Good |
| Ush 151 SB over Cottage Inn Branch | 2003 | 5,250 | Good |
| Ush 151 SB over Pecatonica River | 2003 | 5,250 | Good |
| Ush 151 NB over Bonner Br | 2004 | 4,900 | Fair |
| Ush 151 NB over Lrd West Mound Rd | 2004 | 4,900 | Fair |
| Ush 151 SB over Bonner Br | 2004 | 4,900 | Fair |
| Ush 151 SB over Lrd West Mound Rd | 2004 | 4,900 | Good |
| Sth 11 over Spafford Creek | 2006 | 4,600 | Fair |
| Sth 81 over Dougherty Creek | 1981 | 3,700 | Good |
| Sth 11 over Wolf Creek | 2006 | 3,500 | Fair |
| Sth 11-bridge St over Br Wolf Creek | 2006 | 3,500 | Fair |
| Sth 81 over Br Madden Branch | 1977 | 3,100 | Fair |
| Sth 23 over Br Ames Branch | 1990 | 3,000 | Fair |
| Sth 78-sth 81 over Pecatonica River | 2001 | 3,000 | Fair |
| Sth 11 over Galena R | 2005 | 2,900 | Fair |
| Sth 11 over Shullsburg Branch | 2005 | 2,900 | Fair |
| Sth 11-sheridan St over Shullsburg Branch | 1935 | 2,900 | Fair |
| Sth 126 NB over Ush 151 | 2003 | 2,700 | Good |
| Sth 78 over E Br Pecatonica River | 1988 | 2,500 | Fair |
| Ush Sth 126 - N Mo over Bonner Branch | 1986 | 2,500 | Good |
| Sth 11 over Br Shullsburg Branch | 1947 | 2,200 | Poor |
| Sth 81 over Galena River | 1977 | 2,200 | Fair |
| Sth 23 over Br Pecatonica River | 1984 | 2,100 | Good |
| Sth 81 over Madden Branch | 1966 | 2,100 | Fair |
| Sth 23 over Ames Branch | 2008 | 2,000 | Fair |
| Sth 81 over Pats Creek | 1977 | 1,900 | Fair |
| Sth 78 over Brennan CR | 2007 | 1,500 | Good |
| Sth 78 over E Br Pecatonica River | 2003 | 1,500 | Good |
| Sth 81 over Otter Creek | 2001 | 1,200 | Good |
| Sth 81 over Apple Branch | 2001 | 1,000 | Good |
| Cth G Plattevill over Bonner Branch | 1994 | 994 | Good |
| Cth F over Br Otter Creek | 1940 | 940 | Fair |
| Cth W over Galena River | 1989 | 920 | Good |
| Cth O Seymour Rd over Shullsburg Branch | 2017 | 900 | Good |
| Cth D over Pecatonica River | 2022 | 890 | Good |
| Sth 78 over Sawmill Creek | 2003 | 873 | Good |
| Cth F over Otter Creek | 1963 | 870 | Fair |
| Cth O over Ames Branch | 2023 | 870 | Good |
| Sth 78 over Br Trout Brook CR | 2003 | 790 | Good |
| Cth W over Br Galena River | 1978 | 599 | Fair |
| Lrd Liberty St over Br Bonner Branch | 1925 | 540 | Fair |
| Sth 78 over Whiteside Creek | 1989 | 530 | Fair |
| Lrd Market St over Bonner Branch | 1985 | 517 | Fair |
| Cth F over Steiner Branch | 1936 | 505 | Poor |
| Cth F over Yellowstone River | 1936 | 505 | Poor |
| Cth G over Mud Branch | 1969 | 490 | Fair |
| Cth W over Coon Branch | 1986 | 446 | Good |
| Cth M over Br Pecatonica River | 1969 | 434 | Fair |
| Cth G over Pecatonica River | 1940 | 387 | Fair |
| Cth M over Br E Br Pecatonica River | 1948 | 380 | Poor |
| Sth 78 over Cherry Creek | 2017 | 380 | Good |
| Cth K over Copper Creek | 1985 | 373 | Fair |
| Sth 78 over Pecatonica River | 1970 | 370 | Fair |
| Cth K over Thunder Branch | 1986 | 360 | Good |
| Cth F over Mcclintock Creek | 1936 | 352 | Fair |
| Cth H over Blue Mounds Branch | 1922 | 352 | Fair |
| Cth G over Bonner Branch | 1992 | 345 | Fair |
| Cth M over E Br Pecatonica River | 1985 | 345 | Good |
| Lrd Friendship St over Shullsburg Branch | 2011 | 331 | Good |
| Cth U over Br Ames Branch | 1990 | 326 | Good |
| Cth K over Ames Branch | 1998 | 325 | Fair |
| Cth G over Otter Creek | 1961 | 317 | Fair |
| Cth F over Vinegar Branch | 1985 | 316 | Fair |
| Cth I over Br Madden Branch | 1999 | 313 | Good |
| Cth H over Fever River | 2009 | 312 | Good |
| Cth W over Br Galena River | 1940 | 305 | Fair |
| Cth I over Ellis Branch | 1930 | 293 | Poor |
| Cth E over Ames Branch | 1966 | 282 | Poor |
| Cth E over Br Ames Branch | 1966 | 282 | Poor |
| Cth I over Br Madden Branch | 1976 | 282 | Fair |
| Cth M over Br Pecatonica River | 1966 | 276 | Fair |
| Cth N over Yellowstone River | 1968 | 264 | Fair |
| Cth Y over Trotter Branch | 1977 | 264 | Good |
| Cth U over South Fork Ames Branch | 2018 | 260 | Good |
| Lrd Maple Lane over Whiteside Br Pecatonicar | 2002 | 250 | Good |
| Cth Z over Wood Branch | 2006 | 239 | Good |
| Cth O over Furnace Creek | 1998 | 238 | Good |
| Cth W over Apple River | 1995 | 238 | Good |
| Cth W over Br Apple River | 1995 | 238 | Good |
| Cth O over Pecatonica River | 1985 | 219 | Fair |
| Cth N over Cherry Creek | 2015 | 210 | Good |
| Cth O over Mineral Point Branch | 1970 | 199 | Poor |
| Cth O over Wood Branch | 1966 | 176 | Fair |
| Lrd Bean St Rd over Galena River | 1970 | 176 | Fair |
| Lrd Bennett Rd over Galena River | 1969 | 176 | Fair |
| Lrd Old Hwy Q Rd over Yellowstone River | 1971 | 176 | Fair |
| Lrd Sales Barn Rd over Pats Creek | 1966 | 176 | Fair |
| Lrd Twin Bridge Rd over Galena River | 1965 | 176 | Poor |
| Lrd Mine Rd over Galena River | 1992 | 172 | Good |
| Lrd Holland Rd over Br Wood Branch | 2018 | 170 | Good |
| Lrd Furnace Hill R over Otter Creek | 1990 | 168 | Fair |
| Lrd State Line Rd over Indian Creek | 1990 | 168 | Good |
| Cth C over Bonner Branch | 2023 | 165 | Good |
| Lrd Center Dr Rd over Pats Creek | 1997 | 165 | Good |
| Lrd W Mound Rd over Br Mounds Branch | 1994 | 165 | Good |
| Cth O over Bonner Branch | 1990 | 160 | Good |
| Lrd Bethel Grove R over Cottage Inn Branch | 2018 | 160 | Good |
| Lrd Buncombe Rd over Br Scrabble Creek | 2006 | 146 | Good |
| Cth S over Canon Creek | 1961 | 140 | Poor |
| Lrd Fort Defiance over Br Otter Creek | 1998 | 133 | Good |
| Lrd Spring St over Bonner Branch | 1981 | 129 | Fair |
| Lrd Center Dr over Madden Branch | 1985 | 127 | Good |
| Lrd S Galena Rd NB over Br Galena River | 2016 | 127 | Good |
| Lrd S Galena Rd over Galena River | 1994 | 127 | Good |
| Lrd Sunnydale Rd over Mounds Br Platte River | 1985 | 127 | Good |
| Lrd Oak Park Rd over Mineral Point Branch | 1991 | 123 | Good |
| Cth I over Kelsey Branch | 2018 | 120 | Good |
| Lrd Cottage Inn Rd over Ush 151 | 2003 | 120 | Good |
| Lrd Hill Drive over Whiteside Creek | 1984 | 116 | Good |
| Lrd Miller Lane over Cherry Creek | 1991 | 112 | Good |
| Lrd State Line Rd over Br Spafford Creek | 1986 | 112 | Good |
| Cth D over Canon CR | 2013 | 111 | Good |
| Lrd Johnson Rd over Trib Shullsburg Br | 2003 | 107 | Good |
| Lrd Kennedy Rd over Bull Branch | 2003 | 107 | Good |
| Lrd West Riverside over Br of Pecaconica River | 2003 | 106 | Good |
| Lrd Cisserville Rd over E Br Pecatonica River | 1961 | 105 | Poor |
| Lrd Roller Coaster over Ames Branch | 2008 | 104 | Good |
| Lrd Walnut Rd over Pecatonica River | 2007 | 104 | Good |
| Lrd State Line Roa over W. Fork Apple River | 2011 | 102 | Good |
| Lrd Wood Rd over Ames Branch | 2011 | 102 | Good |
| Lrd Gant Rd over Yellowstone River | 2016 | 100 | Good |
| Lrd Riverside Lane over Pecatonica River | 1952 | 99 | Fair |
| Cth Dd over Spafford Creek | 1959 | 94 | Poor |
| Lrd English Hollow over Canon Creek | 1973 | 94 | Good |
| Lrd Fort Defiance over Otter Creek | 1974 | 94 | Fair |
| Lrd Kings Rd over Br Pecatonica River | 1940 | 94 | Fair |
| Lrd Mount Pleasant over Br Otter Creek | 1950 | 94 | Good |
| Lrd Penny-benton R over Ellis Brook | 1977 | 94 | Good |
| Lrd Wilkinson Rd over Br Galena River | 1929 | 94 | Fair |
| Lrd Woodberry Rd over Br Otter Creek | 1950 | 94 | Fair |
| Lrd Beebe Rd over Galena River | 1990 | 93 | Good |
| Lrd Gravel Run Rd over Br Otter Creek | 1985 | 92 | Good |
| Lrd Dump Rd over Coon Branch | 1988 | 91 | Good |
| Lrd Ames Road over Ames Branch of the Pecat | 2022 | 88 | Good |
| Lrd Beebe Rd over Coon Branch | 1930 | 88 | Fair |
| Lrd Carr Factory R over Br Galena River | 1950 | 88 | Poor |
| Lrd Center Dr Rd over Br Galena River | 1950 | 88 | Fair |
| Lrd Center Dr Rd over Galena River | 1950 | 88 | Fair |
| Lrd Cub Hollow Rd over Copper Creek | 1994 | 88 | Good |
| Lrd Drybone Rd over Spring Branch Creek | 1994 | 88 | Good |
| Lrd Dunbarton Rd over Trout Brook | 1929 | 88 | Poor |
| Lrd Dunbarton Rd over Wolf Creek | 1953 | 88 | Fair |
| Lrd English Hollow over Canon Creek | 1975 | 88 | Good |
| Lrd Johnson Rd over Shullsburg Branch | 1949 | 88 | Fair |
| Lrd Kingsley Rd over Wolf Creek | 1930 | 88 | Poor |
| Lrd Mineral Rd over Br Ames Branch | 1952 | 88 | Fair |
| Lrd Ollie Bell Rd over Ellis Branch | 1970 | 88 | Good |
| Lrd Ollie Bell Rd over Galena River | 1969 | 88 | Fair |
| Lrd Red Rock Rd over Thunder Branch | 1981 | 88 | Good |
| Lrd River Rd over Pecatonica River | 1981 | 88 | Good |
| Lrd Roller Coaster over Pecatonica River | 1980 | 88 | Fair |
| Lrd Shawnee Rd over Kelsey Branch | 1976 | 88 | Good |
| Lrd Silverthorn Rd over Br Shullsburg Branch | 1951 | 88 | Fair |
| Lrd Spore Rd over Apple Branch | 1967 | 88 | Fair |
| Lrd W Puddle Dock over Dougherty Creek | 1938 | 88 | Poor |
| Lrd Wayne Center R over Spofford Creek | 1957 | 88 | Fair |
| Lrd Mau Road over Turtle Creek | 1985 | 86 | Good |
| Lrd Fritzges Road over Turtle Creek | 1998 | 83 | Good |
| Lrd Jericho Rd over Jones Branch | 1930 | 82 | Poor |
| Lrd Sargent Rd over Pecatonica River | 1983 | 81 | Good |
| Lrd Knee Deep Rd over Madden Branch | 1985 | 80 | Good |
| Lrd S Lake Rd over Yellowstone River | 1990 | 70 | Good |
| Lrd E Sargent Rd over Br Pecatonica River | 1983 | 69 | Fair |
| Lrd Rocky Rd over Ames Branch | 1998 | 67 | Good |
| Lrd Aetna Rd over Shullsburg Branch | 1993 | 61 | Good |
| Lrd Ames Road over Copper Creek | 1981 | 58 | Good |
| Lrd Bethel Grove R over Br Cottage Inn Branch | 1940 | 58 | Fair |
| Lrd College Farm R over Galena River | 1949 | 58 | Fair |
| Lrd Cottage Inn Rd over Cottage Inn Branch | 1940 | 58 | Fair |
| Lrd Cub Hollow Rd over Br Wolf Creek | 1947 | 58 | Fair |
| Lrd Ferndale Rd over Pecatonica River | 1958 | 58 | Fair |
| Lrd Fritzges Rd over Brown Branch | 1936 | 58 | Good |
| Lrd Landon Rd over Bonner Branch | 1948 | 58 | Fair |
| Lrd Larse Rd over Pecatonica River | 1958 | 58 | Fair |
| Lrd Mitchell Hollo over Bonner Branch | 1994 | 58 | Good |
| Lrd Oak Park Rd over Pecatonica River | 1940 | 58 | Poor |
| Lrd Riverbend Rd over Feather Brook | 1930 | 58 | Fair |
| Lrd Roper Rd over Br Ames Branch | 1976 | 58 | Good |
| Lrd Rowesville Rd over Br Madden Branch | 1994 | 58 | Good |
| Lrd Russell Rd over Br Cottage Inn Branch | 2019 | 58 | Good |
| Lrd S Dublin Rd over Copper Creek | 1959 | 58 | Fair |
| Lrd Stone Rd over Otter Creek | 1974 | 58 | Fair |
| Lrd Wardsville Rd over Br Ames Branch | 1993 | 55 | Good |
| Lrd State Line Rd over Spafford Creek | 1950 | 52 | Fair |
| Lrd Andrews Rd over Spofford Creek | 1950 | 47 | Fair |
| Lrd Furnace Hill R over Br Otter Creek | 1968 | 47 | Fair |
| Lrd Furnace Hill R over Br Otter Creek | 1958 | 47 | Good |
| Lrd Gant Rd over Yellowstone River | 1930 | 47 | Fair |
| Lrd Palfrey Rd over Shullsburg Branch | 1929 | 47 | Poor |
| Lrd Pine Tree Rd over Pats Creek | 1974 | 47 | Fair |
| Lrd Red School Rd over Madden Branch | 1969 | 47 | Fair |
| Lrd St Peters Rd over Madden Branch | 1969 | 47 | Fair |
| Lrd Sunny Dale Rd over Br Mounds Branch | 1955 | 47 | Fair |
| Lrd Trotter Rd over Trotter Branch | 1930 | 47 | Poor |
| Lrd Ames Branch Rd over Br Ames Branch | 1983 | 46 | Good |
| Lrd St. Rose Road over Tr. Fever River | 1998 | 43 | Good |
| Lrd Ench Rd over Scrabble Branch | 1991 | 42 | Good |
| Lrd Apple Church G over Apple Branch | 1969 | 41 | Fair |
| Lrd Madden Rd over Madden Branch | 1966 | 41 | Fair |
| Lrd Horseshoe Bend over Galena River | 1994 | 38 | Fair |
| Lrd Rowesville Rd over Br Madden Branch | 1997 | 38 | Good |
| Lrd Gilbertson Rd over Canon Creek | 1983 | 34 | Good |
| Lrd Wildcat Road over Otter Creek | 1985 | 28 | Good |
| Lrd Holland Rd over Br Wood Branch | 1990 | 26 | Good |
| Lrd Apple Branch R over Apple Branch | 1964 | 23 | Fair |
| Lrd Country Club R over Br Ames Branch | 1950 | 23 | Fair |
| Lrd Round Rd over Br Cherry Creek | 1934 | 23 | Fair |
| Lrd Zimmerman Rd over Br Otter Creek | 1936 | 23 | Fair |
| Lrd Gunderson Rd over Yellowstone River | 1992 | 22 | Good |
| Lrd Back Rd over Pats Creek | 1974 | 17 | Fair |
| Lrd Crist Lane (de over Br Pecatonica River | 1952 | 10 | Fair |
| Lrd Richardson Lan over Galena River | 1917 | 10 | Fair |
| Lrd E Brennan Lane over Brennan Creek | 1930 | 5 | Poor |
| Lrd Brown Rd over Brown Brook | 1996 | 1 | Good |