| I-95 over Winters Run Rd Winters R | 1963 | 161,591 | Fair |
| I-95 over James Run | 1963 | 130,492 | Fair |
| I-95 over Grays Run | 1963 | 116,162 | Good |
| I-95 over Carsins Run | 1963 | 100,386 | Good |
| I-95 over Swan Creek | 1963 | 100,386 | Fair |
| I-95 over Md 462 | 1963 | 95,675 | Fair |
| I-95 over Susquehanna River Pa RR | 1963 | 86,430 | Fair |
| Md 24 NB over I-95 | 1987 | 73,058 | Fair |
| Md 24 SB over I-95 | 1963 | 73,058 | Fair |
| Md 24 over Md 924 | 2011 | 72,060 | Good |
| I-95 SB over Bynum Run | 1963 | 66,515 | Fair |
| I-95 NB over Bynum Run | 1963 | 63,977 | Fair |
| Md 24 over Plumtree Run | 1987 | 37,310 | Fair |
| Md 24 over Plumtree Run | 1987 | 37,310 | Fair |
| Md 24 over Plumtree Run | 1987 | 35,300 | Fair |
| US 40 over Cranberry Run | 1935 | 34,600 | Fair |
| Md 22 over I-95 | 2003 | 28,000 | Good |
| US 40 over Swan Creek | 1935 | 27,800 | Fair |
| Md Rte 152 over I-95 | 1992 | 27,371 | Fair |
| US 40 & Rmps 5 & 6 over Br of Swan Creek | 1968 | 26,751 | Fair |
| Md 22 over CSX Trans. | 1968 | 25,940 | Fair |
| US 40 over Church Creek | 1935 | 25,930 | Fair |
| U.S. Route 40 over Susquehanna River-pa RR | 1939 | 25,780 | Fair |
| Md 152 over CSX Transportation | 1971 | 24,672 | Good |
| Md 24 over Trib. to Otter Point Cre | 1969 | 24,240 | Fair |
| US 1 & Ramp C(2) over Bynum Run | 1964 | 23,320 | Fair |
| Md 24 & 24E over Heavenly Waters | 1987 | 23,140 | Good |
| Md 24F over Heavenly Waters | 1987 | 23,140 | Fair |
| Md 22 over Bynum Run | 1950 | 22,861 | Fair |
| Md 22 over Amtrak Trib to Swan CR | 1968 | 22,420 | Fair |
| US 40 over Br of Otter Point Creek | 1994 | 21,614 | Good |
| Md 24 over Ped. and Horse Tunnel | 1987 | 21,480 | Good |
| US 1 over Winters Run | 1963 | 21,112 | Poor |
| US 40 over Bush Creek | 1935 | 21,093 | Fair |
| US 40 over Otter Point Creek | 1935 | 21,093 | Fair |
| US 1 Bu over Winters Run | 1930 | 20,564 | Fair |
| US 1 over N Tollgate Rd Ped Trail | 1963 | 20,542 | Poor |
| Md 24 NB over Otters Point Creek | 1996 | 20,242 | Good |
| Md 24 Nbr over US 40 | 1995 | 20,242 | Good |
| Md 24 SB over Otters Point Creek | 1967 | 20,242 | Fair |
| Md 24 Sbr over CSX Trans. | 1970 | 20,242 | Fair |
| Md 24 Sbr over US 40 | 1967 | 20,242 | Fair |
| Md 24 over CSX Railroad | 1995 | 20,242 | Good |
| US 1 over Md 24 | 1964 | 20,002 | Fair |
| Md 543 over Is 95 | 1991 | 18,391 | Fair |
| Md 543 over James Run | 1988 | 18,082 | Fair |
| Md 543 over US 40 CSX Railroad | 1995 | 17,981 | Good |
| Md 22 over US 40 | 1968 | 17,370 | Fair |
| Md 24 over Amtrak Sibert Rd | 1974 | 16,092 | Fair |
| Joppa Farm Road over Foster Branch | 1997 | 15,650 | Good |
| Md 155 over I-95 | 1960 | 15,420 | Fair |
| US 1 over Susquehanna River | 1927 | 14,243 | Fair |
| Md 543 over Br of Bynum Run | 1936 | 14,221 | Fair |
| Md 7 over Haha Branch | 1976 | 13,781 | Good |
| Abingdon Road over I-95 | 1963 | 13,161 | Fair |
| Md 7 over James Run | 2014 | 12,500 | Good |
| Md 7 over CSX Trans. | 1993 | 12,210 | Good |
| Md 7 over Grays Run | 1925 | 12,210 | Fair |
| Md 7A over Amtrak | 1983 | 11,932 | Fair |
| Md 23 over Morse Road | 1961 | 11,892 | Good |
| Md 23 over Phillips Mill Rd & E. Br | 1961 | 11,602 | Fair |
| Md 715 over US 40 | 1985 | 11,583 | Fair |
| Md 7 over Bynum Run | 1923 | 11,350 | Fair |
| US 1 Bu over Bynum Run | 1953 | 11,230 | Fair |
| US 1 over Deer Creek | 1934 | 11,172 | Fair |
| Abingdon Road over CSX Railroad | 1940 | 10,242 | Poor |
| Md 136 over Deer Creek | 1931 | 9,984 | Fair |
| Edgewood Road over Otter Point Creek (N) | 1933 | 9,886 | Fair |
| Moores Mill Road over Bynum Run | 2005 | 9,615 | Good |
| Edgewood Road over Otter Point Creek (S) | 1987 | 9,554 | Fair |
| Brierhill Drive over Bynum Run | 1987 | 9,278 | Good |
| Singer Road over Winters Run | 1983 | 9,170 | Fair |
| Md 715 EB over Amtrak | 1943 | 8,627 | Fair |
| Md 715 WB over Amtrak | 1943 | 8,626 | Fair |
| Carrs Mill Road over Winters Run | 1991 | 8,285 | Good |
| Carrs Mill Road over Bear Cabin Branch | 2018 | 8,142 | Good |
| Hess Road over Yellow Branch | 1950 | 8,065 | Fair |
| Tollgate Road over Heavenly Waters | 2000 | 8,025 | Fair |
| Md 543 over Deer Creek | 1932 | 7,736 | Fair |
| Md 136 over I-95 | 1963 | 7,656 | Fair |
| Md 136 over Broad Creek | 1961 | 7,511 | Fair |
| Md 165 over Br of West Branch | 2004 | 7,471 | Good |
| Md 165 over West Branch | 2004 | 7,471 | Fair |
| Md 462 over Swan Creek | 1978 | 7,401 | Fair |
| Md 7 over Winters Run | 1991 | 7,300 | Good |
| Md 462 over Carsins Run | 1978 | 6,960 | Fair |
| Md 165 over Little Deer Creek | 1930 | 6,673 | Fair |
| Md 462 over Swan Creek | 1978 | 6,501 | Good |
| Md 136 over James Run | 2006 | 6,361 | Good |
| Md 165 over Deer Creek | 1932 | 6,101 | Fair |
| Wheel Road over Bynum Run | 1996 | 6,075 | Good |
| Md 165 over Broad Creek | 1959 | 5,772 | Fair |
| Lewis Lane over Amtrak Railroad | 1980 | 5,745 | Fair |
| Md 161 over Deer Creek | 1995 | 5,291 | Good |
| Md 159 over Cranberry Run | 2008 | 4,980 | Good |
| Singer Road over Mountain Branch | 2003 | 4,530 | Good |
| Bynum Road over Bynum Run | 1976 | 4,310 | Fair |
| Jarrettsville Road over East Branch /winters Run | 1950 | 4,308 | Poor |
| Spesutia Road over Cranberry Run | 1966 | 4,242 | Fair |
| Schuster Road over West Branch/ Winters Run | 1999 | 4,200 | Good |
| Md 132B over Swan Creek | 1930 | 4,030 | Fair |
| Hookers Mill Road over Bynum Run | 1957 | 3,986 | Poor |
| Md 624 over Broad Creek | 1936 | 3,920 | Fair |
| Md 132 over Amtrak | 1983 | 3,900 | Fair |
| Southampton Road over Bynum Run | 2010 | 3,876 | Good |
| Md 24 over North Stirrup Run | 1917 | 3,572 | Fair |
| Md 132B over Amtrak | 1943 | 3,563 | Fair |
| Md 23 over Deer Creek | 1989 | 3,552 | Fair |
| Old Joppa Road over I-95 | 2019 | 3,330 | Good |
| Pleasantville Road over Winters Run | 1958 | 3,320 | Fair |
| Md 24 over Br of Deer Creek | 1986 | 3,193 | Good |
| Md 24 over Br of Deer Creek | 1986 | 3,193 | Fair |
| Md 24 over Br of Deer Creek | 1986 | 3,193 | Fair |
| Md 24 over Kellogg Branch | 1917 | 3,193 | Fair |
| Macphail Road over Bynum Run | 1974 | 3,095 | Fair |
| Whitaker Mill Road over Winters Run | 1991 | 3,051 | Fair |
| Md 24 over Deer Creek | 1934 | 2,951 | Fair |
| Chapel Road over I-95 | 1963 | 2,880 | Fair |
| Grafton Shop Road over Bear Cabin Branch | 1977 | 2,765 | Fair |
| Watervale Road over Winters Run | 2016 | 2,479 | Good |
| Md 136 over Big Branch | 1934 | 2,420 | Fair |
| Vale Road over US 1 | 1963 | 2,254 | Fair |
| Old Fallston Road over Ma & Pa Railroad (aband) | 1930 | 2,210 | Fair |
| Md 136 over Falling Branch | 1931 | 2,161 | Poor |
| Chelsea Road over Amtrak Railroad | 1981 | 2,130 | Fair |
| Md 136 over Island Branch | 1935 | 1,901 | Fair |
| Stepney Road over I-95 | 1963 | 1,810 | Fair |
| Durham Road over WEST BRANCH and WINTERS | 1995 | 1,770 | Good |
| Henderson Road over Trib / Bynum Run | 1990 | 1,759 | Fair |
| West Macphail Road over Plumtree Run | 1999 | 1,723 | Good |
| Thomas Run Road over Trib / Thomas Run | 1973 | 1,690 | Fair |
| Grier Nursery Road over Deer Creek | 1955 | 1,660 | Poor |
| Econ Drive over Trib / Bynum Run | 1982 | 1,623 | Fair |
| Md 623 over Br of Susquehanna Riv | 1993 | 1,620 | Good |
| Furnace Road over West Branch/winters Run | 1996 | 1,550 | Good |
| Cool Spring Road over Tobacco Run | 1981 | 1,545 | Fair |
| Ryan Road over Bread and Cheese Branch | 2008 | 1,530 | Good |
| Md 623 over Peddler Run | 1987 | 1,501 | Good |
| Clayton Road over I-95 | 2022 | 1,386 | Good |
| Bridge Drive over Joppatowne Canal | 1975 | 1,342 | Fair |
| Oakington Road over Gasheys Creek | 1993 | 1,330 | Good |
| Whitaker Mill Road over High Bridge Branch | 1998 | 1,325 | Fair |
| James Run Road over Broad Run | 1960 | 1,265 | Good |
| Maxa Road over I-95 | 1963 | 1,239 | Good |
| James Run Road over James Run | 1977 | 1,215 | Fair |
| Md 646 over Broad Creek | 1933 | 1,140 | Fair |
| Sharon Road over South Stirrup Run | 1950 | 1,140 | Fair |
| Md 623 over Broad Creek | 1998 | 1,120 | Good |
| Bear Creek Drive over Bear Cabin Branch | 1980 | 1,111 | Good |
| Thomas Run Road over Thomas Run | 2008 | 1,083 | Good |
| Morse Road over East Branch/winters Run | 1997 | 1,045 | Fair |
| Ruffs Mill Road over Trib / Thomas Run | 2011 | 1,007 | Good |
| Gilbert Road over Carsins Run | 1960 | 1,000 | Good |
| Fawn Grove Road over Deer Creek | 1978 | 978 | Good |
| Friendship Road over Overshot Branch | 1975 | 975 | Fair |
| Md 156 over Swan Creek | 1922 | 970 | Fair |
| Reckord Road over Wildcat Branch | 1957 | 961 | Fair |
| Glen Cove Road over Peddler Run | 1930 | 890 | Good |
| Bernadette Drive over Bear Cabin Branch | 1970 | 869 | Fair |
| Earlton Road over I-95 | 1963 | 829 | Fair |
| Bynum Ridge Road over Bynum Run | 1975 | 827 | Fair |
| Glenville Road over Mill Brook | 1930 | 816 | Poor |
| Madonna Road over Cattail Branch | 1992 | 789 | Good |
| Madonna Road over Little Deer Creek | 1992 | 789 | Fair |
| Clayton Road over Mountain Branch | 1970 | 766 | Fair |
| Mt Horeb Road over Little Deer Creek | 1955 | 751 | Good |
| Tollgate Road over Trib / Winters Run | 2003 | 736 | Good |
| Wagner Way over Bynum Run | 2001 | 732 | Good |
| Moores Road over Saw Mill Branch | 1952 | 724 | Fair |
| North Avenue over Bynum Run | 2011 | 714 | Good |
| Chestnut Hill Road over Stout Bottle Branch | 2020 | 681 | Good |
| Carsins Run Road over Carsins Run | 1972 | 655 | Fair |
| Putnam Road over West Branch/winters Run | 1950 | 648 | Fair |
| Chestnut Hill Road over Cabbage Run | 1938 | 642 | Fair |
| Greene Road over Saw Mill Branch | 1952 | 616 | Good |
| Four Seasons Drive over Tributary to Ha Ha Branc | 2005 | 595 | Good |
| Trappe Church Road over Hollands Branch | 1952 | 591 | Poor |
| Winters Run Road over Mountain Branch | 1972 | 585 | Good |
| Prospect Road over Deep Creek | 1950 | 575 | Fair |
| Winters Run Road over Trib / Winters Run | 1972 | 565 | Fair |
| St Clair Bridge Rd over Deer Creek | 1954 | 563 | Fair |
| Cherry Hill Road over Deer Creek | 1900 | 559 | Fair |
| Old Pylesville Rd over Trib / Jacks Hole | 1997 | 541 | Fair |
| Heaps Road over Broad Creek | 1979 | 529 | Fair |
| Snake Lane over James Run | 2019 | 529 | Good |
| Burnt Hill Trail over Trib Grays Run | 2008 | 515 | Fair |
| Lapidum Road over I-95 | 1963 | 515 | Good |
| Green Road over Trib / Deer Creek | 2019 | 510 | Good |
| Stafford Road over Buck Branch | 1980 | 508 | Poor |
| Walters Mill Road over Stout Bottle Branch | 1959 | 508 | Fair |
| Harford Creamery R over Trib / Little Deer Creek | 2015 | 500 | Good |
| Martha Lewis Boule over CSX | 2006 | 500 | Good |
| Glen Cove Road over Peddler Run | 2019 | 481 | Good |
| Stafford Road over Deer Creek | 1951 | 469 | Good |
| Trappe Church Road over Hopkins Branch | 1978 | 441 | Fair |
| Aldino-stepney Rd over Carsins Run | 2000 | 439 | Good |
| Phillips Mill Road over East Branch/ Winters Run | 2020 | 434 | Good |
| Mill Green Road over Broad Creek | 1988 | 418 | Fair |
| Heaps School Road over Broad Creek | 1965 | 405 | Fair |
| New Park Road over Island Branch | 2019 | 395 | Good |
| St Clair Bridge Rd over Deer Creek | 1961 | 390 | Fair |
| West Chapel Road over Swan Creek | 1930 | 365 | Good |
| Glenville Road over Graveyard Creek | 1930 | 349 | Fair |
| Deer Creek Church over Stout Bottle Branch | 1964 | 347 | Fair |
| Troyer Road over Trib / Little Deer Creek | 2023 | 335 | Good |
| Cullum Road over Tributary of James Run | 1920 | 315 | Fair |
| Schucks Park Road over Broad Run | 2012 | 306 | Good |
| Heaps Road over Jane Carrs Run | 1996 | 303 | Good |
| Bottom Road over Overshot Branch | 1978 | 300 | Good |
| Kalmia Road over Trib / Deer Creek | 1970 | 287 | Good |
| Stafford Road over Rock Run | 1991 | 287 | Fair |
| Charles Street over West Branch/winters Run | 1965 | 280 | Fair |
| Nova Scotia Road over James Run | 1930 | 275 | Fair |
| Cloverfield Drive over Tributary of Bynum Run | 2023 | 250 | Good |
| Pennington Road over Thomas Run | 1975 | 249 | Good |
| Old York Road over Little Gunpowder Falls | 1955 | 245 | Fair |
| Old Joppa Road over Trib / Gunpowder Falls | 1960 | 232 | Fair |
| South Tollgate Roa over Plumtree Run | 2019 | 225 | Good |
| Cedarday Drive over Tributary to Bynum Run | 2005 | 221 | Good |
| Quaker Bottom Road over Rock Run | 1982 | 220 | Fair |
| Macton Road over Trib / Broad Creek | 2014 | 212 | Good |
| Cooley Mill Road over Rock Run | 1997 | 200 | Good |
| Sandy Hook Road over Deer Creek | 1977 | 190 | Good |
| Eden Mill Road over Big Branch | 1961 | 177 | Good |
| Holly Oak Circle over Grays Run | 1999 | 173 | Good |
| Green Road over Trib of Deer Creek | 1999 | 170 | Fair |
| Ridge Road over Broad Creek | 1979 | 169 | Good |
| Todd Road over Trib / Bynum Run | 2003 | 165 | Fair |
| Macton Road over Broad Creek | 1955 | 162 | Good |
| Old Pylesville Rd over Broad Creek | 1928 | 161 | Fair |
| Carea Road over Island Branch | 1970 | 160 | Fair |
| Bailey Road over South Stirrup Run | 1953 | 155 | Good |
| Green Road over Deer Creek | 1900 | 155 | Fair |
| Rock Run Road over Rock Run | 1955 | 154 | Fair |
| Plumtree Road over Plumtree Run | 1900 | 151 | Fair |
| Green Road over Trib / Deer Creek | 2019 | 148 | Good |
| Harmony Church Rd over Mill Brook | 1933 | 133 | Good |
| Amoss Road over Island Branch | 1972 | 125 | Fair |
| Cedar Lane over Trib / Bynum Run | 1971 | 125 | Fair |
| Mardic Drive over Bynum Run | 1998 | 114 | Good |
| Hall Street over Heavenly Waters | 1999 | 113 | Fair |
| Red Bridge Road over Falling Branch | 1975 | 113 | Fair |
| Forge Hill Road over Deer Creek | 1925 | 112 | Fair |
| Md 152 over Amtrak | 1994 | 102 | Good |
| Oak Farm Road over Mill Brook | 1988 | 102 | Fair |
| Mandeville Road over Tributary to Little Gunp | 1985 | 101 | Good |
| Susquehanna Hall R over Deep Run | 1973 | 101 | Good |
| Turner Road over Trib / L Gunpowder Falls | 2003 | 101 | Good |
| Combat Drive over Unknown Creek | 2017 | 100 | Good |
| Jayhawk Rd over Unknown Creek | 2017 | 100 | Fair |
| Mulberry Point Rd over Woodrest Creek | 1985 | 100 | Fair |
| Old Baltimore Rd over Romney Creek | 2017 | 100 | Good |
| Palmer Road over Romney Creek | 1942 | 100 | Fair |
| Amoss Mill Road over Island Branch | 1972 | 99 | Poor |
| Madonna Road over Deer Creek | 1965 | 89 | Fair |
| Buttermilk Road over Trib / Big Branch | 1978 | 86 | Fair |
| Dry Branch Road over Trib / Deer Creek | 1999 | 82 | Good |
| Cosner Road over East Branch/winters Run | 1991 | 81 | Good |
| Harford Creamery R over Jackson Branch | 1979 | 81 | Fair |
| Jolly Acres Road over Deer Creek | 1973 | 80 | Fair |
| Robinson Mill Road over Broad Creek | 2020 | 73 | Good |
| Nobles Mill Road over Deer Creek | 1883 | 70 | Poor |
| Neal Road over Big Branch | 1950 | 60 | Good |
| Montrose Way over Trib / Winters Run | 2005 | 58 | Good |
| Montrose Way over Trib / Winters Run | 2005 | 58 | Good |
| Stafford Road over Herring Run | 1930 | 58 | Fair |
| Oak Valley Drive over Trib / Plumtree Run | 2005 | 55 | Good |
| Old Southampton Ro over Bynum Run | 1930 | 51 | Good |
| Taylor Road over Broad Creek | 1974 | 44 | Fair |
| West Heaps Road over Big Branch | 1990 | 37 | Fair |
| Poteet Road over East Branch/winters Run | 1995 | 35 | Fair |
| Little Road over Deep Run | 1980 | 31 | Good |
| Falling Branch Rd over Falling Branch | 1973 | 25 | Fair |
| Falling Branch Rd over Falling Branch | 1973 | 22 | Fair |
| Linkous Road over Falling Branch | 2024 | 13 | Good |
| Lake Fanny Road over Winters Run | 1913 | 11 | Fair |