| I80 Oh Tpk over Portage River | 1954 | 44,219 | Fair |
| I80 Oh Tpk over Sugar Creek | 1954 | 44,219 | Fair |
| Camper Rd over I80 Ohio Tpk | 1954 | 30,000 | Good |
| SR 2 over Sandusky Bay | 1965 | 18,329 | Good |
| SR 2 over Norfolk Southern RR | 1963 | 16,444 | Fair |
| SR 2 over Sandusky Bay Overflow | 1963 | 16,444 | Fair |
| SR 53 over SR 2 | 1966 | 11,090 | Fair |
| SR 2 over Portage River | 1968 | 10,855 | Fair |
| SR 2 over Portage River Overflow | 1968 | 10,855 | Fair |
| SR 2 over Norfolk Southern | 1968 | 10,601 | Good |
| SR 2 over SR 163 | 1968 | 10,601 | Good |
| SR 51 over Packer Creek | 1990 | 9,700 | Fair |
| SR 51 over South Branch Turtle Cree | 1984 | 9,700 | Fair |
| SR 2 over Portage River Overflow | 1967 | 9,547 | Fair |
| SR 2 over Turtle Creek | 2000 | 8,220 | Good |
| SR 2 over Toussaint River | 2000 | 7,992 | Good |
| SR 2 over Lacarpe Creek | 1967 | 7,963 | Good |
| SR 51 over Portage River | 2020 | 7,300 | Good |
| SR 2 over County Rd 33 (gypsum Rd) | 1967 | 7,142 | Good |
| SR 2 over County Rd 33 (gypsum Rd) | 1967 | 7,142 | Good |
| SR 2 over Norfolksouthern/state St | 1968 | 7,047 | Good |
| SR 2 over Norfolk Southern/state S | 1968 | 6,741 | Good |
| SR 19 over Portage River | 1993 | 6,484 | Good |
| SR 2 over Rusha Creek | 1964 | 5,864 | Good |
| SR 163 over Lacarpe Creek | 1994 | 5,525 | Good |
| Genoa-clay Center over Packer Creek | 1930 | 5,463 | Fair |
| SR 163 over Toussaint Creek | 1999 | 4,728 | Good |
| SR 579 over Crane Creek | 1952 | 4,588 | Fair |
| SR 2 over Crane Creek | 2013 | 4,497 | Good |
| SR 51 over Toussaint Creek | 1933 | 3,913 | Fair |
| Genoa-clay Center over S. Branch Turtle Creek | 2008 | 3,782 | Good |
| CR 8/STATE Rd. over SR 2/SR 53 | 1966 | 3,422 | Good |
| SR 19 over Ltl Portage R Aka 9 Mi C | 1983 | 3,255 | Fair |
| SR 163 over Portage River | 1933 | 3,246 | Fair |
| SR 51 over I80 Ohio Tpk | 1954 | 2,554 | Fair |
| SR 51 over Sugar Creek | 1996 | 2,554 | Good |
| Fulton Road over SR 2 & 53 | 1968 | 2,491 | Good |
| Fostoria Rd over Dry Creek | 1950 | 2,140 | Good |
| Tettau Rd over Lacarpe Creek | 1941 | 2,117 | Fair |
| Wildacre Rd over Crane Creek | 1933 | 2,036 | Fair |
| Wildacre Road over Cedar Creek | 2022 | 2,006 | Good |
| Exit 81 Connector over Dischinger Rd | 1996 | 2,000 | Good |
| Exit 81 Ramp over I80 Ohio Turnpike | 1996 | 2,000 | Fair |
| SR 19 over Tousaint River | 1997 | 1,971 | Good |
| SR 19 over Toussaint River | 1954 | 1,971 | Good |
| SR 19 over Toussaint River | 1954 | 1,971 | Fair |
| SR 105 over Ir 80 Ohio Tpk | 1954 | 1,874 | Fair |
| SR 590 over Indian Creek | 1990 | 1,757 | Fair |
| SR 590 over Portage River | 1958 | 1,757 | Good |
| SR 590 over Wolf Creek | 1990 | 1,757 | Good |
| SR 269 over Co Rd 135A - Bayshore Rd | 1963 | 1,744 | Good |
| SR 269 over SR 2 | 1963 | 1,744 | Fair |
| Ramp 2C over SR 2 | 1966 | 1,677 | Good |
| Bay Shore Rd over Meadow Brook | 1981 | 1,622 | Good |
| SR 105 over West Bayou | 2023 | 1,589 | Good |
| Fostoria Rd over Cedar Creek | 2007 | 1,500 | Good |
| Odnr Fishing Acces over Norfolk Southern RR | 1994 | 1,300 | Good |
| Odnr Fishing Acces over Small Boat Passage | 1994 | 1,300 | Good |
| SR 53 over SR 2 | 1968 | 1,275 | Fair |
| Oak Harbor SE Rd over Little Portage River | 1956 | 1,145 | Good |
| Lockwood Rd over Boating Channel | 2007 | 1,113 | Good |
| Cherry Street over Packer Creek | 1972 | 1,000 | Fair |
| Washington Street over Packer Creek | 1958 | 1,000 | Poor |
| Wilson Street over Packer Creek | 1972 | 1,000 | Fair |
| Ramp 2C over SR 163 | 1966 | 962 | Fair |
| SR 590 over Packer Creek | 1956 | 931 | Fair |
| SR 590 over Toussaint Creek | 1999 | 931 | Good |
| Rocky Ridge Rd over Toussaint Creek | 1931 | 797 | Fair |
| Lightner Rd. over SR 2 | 1967 | 784 | Good |
| Fostoria Rd over Crane Creek | 1950 | 779 | Fair |
| Graytown Road over Packer Creek | 2017 | 760 | Good |
| Graytown Road over Turtle Creek | 2016 | 760 | Good |
| Reiman Rd over Packer Creek | 1981 | 760 | Good |
| Portage River S Rd over Wolf Creek | 2004 | 750 | Good |
| SR 590 over Turtle Creek | 1956 | 678 | Fair |
| Genoa-clay Center over Crane Creek | 1939 | 639 | Good |
| Elmore Eastern Rd over Sugar Creek | 1954 | 621 | Fair |
| Graytown Rd over Toussaint Creek | 1950 | 615 | Good |
| Benton-carroll Rd over Packer Creek | 1940 | 592 | Good |
| Benton-carroll Rd over Toussaint Creek | 2011 | 592 | Good |
| Benton-carroll Rd over Turtle Creek | 1956 | 592 | Fair |
| Elliston-trowbridg over Packer Creek | 1985 | 527 | Good |
| Elliston-trowbridg over Turtle Creek | 1950 | 527 | Fair |
| Portage River Rd over I80 Ohio Tpk | 1954 | 522 | Fair |
| Duff-washa Rd over Turtle Creek | 1955 | 509 | Fair |
| Vogel Rd over Lacarpe Creek | 1982 | 485 | Good |
| Elliston-trowbridg over Toussaint Creek | 2023 | 478 | Good |
| West Nineth Street over Packer Creek | 1958 | 436 | Poor |
| Nissen Rd over Crane Creek | 1934 | 417 | Fair |
| Nissen Rd over Packer Creek | 2022 | 411 | Good |
| Magee Marsh over Magee Marsh | 2018 | 399 | Good |
| Magee Marsh over Magee Marsh | 2018 | 399 | Good |
| Harris-salem Rd over Nine Mile Creek | 1955 | 385 | Good |
| Harris-salem Rd over Wolf Creek | 1954 | 385 | Fair |
| Lickert-harder Rd over Turtle Creek | 1941 | 385 | Fair |
| Locust Point Rd over Turtle Creek | 1984 | 385 | Fair |
| Nissen Rd over Turtle Creek | 1950 | 376 | Good |
| Mud Creek Rd over Little Porage River | 1996 | 370 | Good |
| Harris-salem Rd over Indian Creek | 2020 | 360 | Good |
| Lemon Rd over Turtle Creek | 1957 | 351 | Good |
| Linker-portage Rd over Wolf Creek | 1988 | 351 | Good |
| Muddy Creek N Rd over Little Portage River | 1957 | 351 | Good |
| Rider Rd over Beef Creek | 1961 | 351 | Poor |
| Portage River S. over Sugar Creek | 1964 | 339 | Good |
| Opfer-lentz Rd over Toussaint Creek | 1955 | 333 | Good |
| Toussaint South Rd over Rusha Creek | 1931 | 329 | Fair |
| Bolsinger Rd over Muddy Creek | 1955 | 324 | Good |
| Dischinger Rd over Sugar Creek | 1987 | 324 | Good |
| Dishinger Rd over I80 Ohio Turnpike | 1996 | 324 | Fair |
| Four Mile House Rd over Indian Creek | 2005 | 324 | Good |
| Four Mile House Rd over Nine Mile Creek | 1955 | 324 | Fair |
| Four Mile House Rd over Wolf Creek | 1940 | 324 | Fair |
| Fulkert Rd over Geo. Hagedorn Jt. Co. Dt | 2013 | 324 | Good |
| Hessville Rd over Sugar Creek | 1971 | 324 | Good |
| Hessville Rd over Wolf Creek | 1958 | 324 | Fair |
| Martin-williston over Toussaint Creek | 1972 | 324 | Good |
| Moline-martin Rd over Packer Creek | 1977 | 324 | Good |
| Muddy Creek N Rd over Muddy Creek | 1960 | 324 | Fair |
| Portage South Rd over Wolf Creek | 2015 | 324 | Good |
| Schultz-portage Rd over Sugar Creek | 1952 | 324 | Good |
| Schultz-portage Rd over Wolf Creek | 1949 | 324 | Fair |
| Slemmer-portage Rd over Wolf Creek | 1955 | 324 | Good |
| Woodrick Rd over Little Portage River | 1957 | 324 | Good |
| Yeasting Rd over Wolf Creek | 1963 | 324 | Good |
| Billman Rd over Ayers Creek | 2021 | 319 | Good |
| Billman Rd over Cedar Creek | 2011 | 300 | Good |
| Curtice E & W Rd over Cedar Creek | 1956 | 299 | Good |
| Billman Rd over Crane Creek | 1963 | 284 | Good |
| SR 163 over Packer Creek | 2022 | 274 | Good |
| Martin-williston over I80 Ohio Turnpike | 1997 | 272 | Good |
| Billman Rd over I80 Ohio Turnpike | 1997 | 266 | Good |
| Martin-williston over Packer Creek | 1934 | 256 | Fair |
| Martin-williston over Crane Creek | 1975 | 243 | Good |
| Reiman Rd over S. Branch Turtle Creek | 1979 | 240 | Good |
| Behlman Rd over Rusha Creek | 1953 | 233 | Fair |
| Nissen Rd over Toussaint Creek | 1973 | 233 | Good |
| Stange Road over Turtle Creek | 2021 | 213 | Good |
| Reiman Road over Cedar Creek | 1955 | 209 | Good |
| SR 358 over Lacarpe Creek | 2008 | 209 | Good |
| Walbridge East Rd over Crane Creek | 1956 | 209 | Fair |
| Stange Rd over Packer Creek | 1955 | 208 | Good |
| Stange Rd over Toussaint Creek | 1955 | 208 | Good |
| Toussaint-portage over at Lacarpe Creek | 1996 | 198 | Good |
| Genzman Road over C. Miller Ditch | 2013 | 180 | Good |
| Curtice E & W Rd over Crane Creek | 1974 | 169 | Fair |
| Camper Rd over Unnamed Ditch | 1900 | 167 | Fair |
| Moline-martin Rd over S. Branch Turtle Creek | 1936 | 159 | Good |
| Trowbridge Rd over Turtle Creek | 1957 | 141 | Fair |
| Lickert-harder Rd over Packer Creek | 1954 | 132 | Good |
| Elmore Eastern Rd over Wolf Creek | 1999 | 125 | Good |
| Opfer-lentz Rd over N. Branch Turtle Creek | 1936 | 113 | Good |
| Opfer-lentz Rd over Packer Creek | 1978 | 113 | Good |
| Opfer-lentz Rd over S. Branch Turtle Creek | 1942 | 113 | Good |
| Toussaint North Rd over Packer Creek | 1967 | 111 | Good |
| Leutz Rd over Rusha Creek | 1952 | 110 | Good |
| Hellwig Rd over Packer Creek | 1958 | 105 | Good |
| Fulkert Rd over Toussaint Creek | 2020 | 100 | Good |
| Rymers Rd over Lacarpe Creek | 1965 | 100 | Fair |
| Lickert-harder Rd over Toussaint Creek | 1957 | 87 | Fair |
| Linker-portage Rd over Sugar Creek | 1968 | 56 | Good |