| Is 70 EB over Md 27 | 1974 | 65,550 | Fair |
| Is 70 WB over Md 27 | 1974 | 65,550 | Fair |
| Md 140 EB over Md 97 | 2006 | 47,060 | Good |
| Md 140 WB & Ramp B over Md 97 | 2006 | 47,060 | Good |
| Md 140 over Md Mid RR MD27 West Br | 2006 | 45,521 | Good |
| Md 32 over Piney Run | 1957 | 26,590 | Fair |
| Md 26 over Md 97 | 1962 | 25,970 | Fair |
| Md 26 over Liberty Reservoir | 1954 | 20,192 | Fair |
| Md 26 over Liberty Reservoir | 1954 | 20,192 | Poor |
| Md 27 over Cranberry Branch | 1959 | 18,790 | Fair |
| Md 27 over Maryland Midland RR | 1959 | 18,790 | Fair |
| Md 27 over West Branch Patapsco Riv | 1959 | 18,790 | Fair |
| Md 140 over Meadow Branch | 1952 | 17,390 | Fair |
| Md 97 over Big Pipe Creek | 1934 | 15,340 | Fair |
| Md 97 over Morgan Run | 1959 | 15,140 | Fair |
| Md 27 over Morgan Run | 1922 | 14,091 | Fair |
| Md 32 over Liberty Reservoir | 1952 | 14,020 | Fair |
| Md 140 over Bear Branch | 1964 | 13,070 | Fair |
| Md 140 over Big Pipe Creek | 1964 | 13,070 | Fair |
| Md 140 over Richardson Rd | 1963 | 13,070 | Fair |
| SR6 (buttercup Roa over Piney Run | 1927 | 12,400 | Fair |
| Marriottsville Rd over Piney Run | 1977 | 12,255 | Fair |
| Marriottsville Rd over South Br Patapsco River | 1986 | 12,255 | Good |
| Md 91 over Beaver Run | 1967 | 11,260 | Fair |
| Md 27 over Little Pipe Creek | 1991 | 10,690 | Fair |
| Md 27 over Maryland Midland RR | 1991 | 10,690 | Fair |
| Md 91 over Middle Run | 1964 | 10,670 | Fair |
| Md 482 over CSX Transportation | 1982 | 10,440 | Fair |
| Md 97 over Silver Run | 1987 | 10,250 | Fair |
| Md 97 over Piney Run | 1979 | 10,080 | Fair |
| Md 30 over Trib to East Branch | 2007 | 9,450 | Good |
| Md 30 over Indian Run | 2007 | 9,200 | Good |
| Md 30 over Shiloh Road | 2007 | 9,200 | Fair |
| Md 97 over Piney Branch | 1982 | 8,770 | Fair |
| Md 97 over South Branch Patapsco Ri | 1973 | 8,770 | Fair |
| Md 97 over Tuckers Branch | 1976 | 8,770 | Good |
| Md 482 over East Branch Patapsco Riv | 1936 | 8,212 | Fair |
| Woodbine Road over South Branch Patapsco Ri | 1976 | 8,182 | Fair |
| Green Street over Md Midland Railway | 1923 | 7,436 | Fair |
| Md 31 over Little Pipe Creek | 1963 | 7,321 | Fair |
| Gorsuch Road over West Branch Patapsco Riv | 1968 | 7,307 | Good |
| Md 194 over Branch of Piney Creek | 1974 | 5,732 | Good |
| Md 194 over Branch of Piney Creek | 1974 | 5,732 | Good |
| Md 91 over Maryland Midland RR | 1965 | 5,640 | Fair |
| Md 91 over North Branch Patapsco Ri | 1965 | 5,640 | Fair |
| Md 140 over Piney Creek | 1997 | 5,340 | Good |
| Md 31 over Turkeyfoot Run | 1963 | 5,321 | Fair |
| Md 194 over Big Pipe Creek | 2005 | 5,152 | Good |
| Md 194 over Piney Creek | 1958 | 4,982 | Fair |
| Md 31 over Dickerson Run | 1924 | 4,861 | Fair |
| Houcksville Road over Md 30 | 2007 | 4,844 | Good |
| Houcksville Road over CSX Railroad | 2002 | 4,741 | Good |
| Stone Chapel Road over Little Pipe Creek | 1930 | 4,612 | Poor |
| Md 86 over South Br Gunpowder Falls | 2020 | 4,337 | Good |
| White Rock Road over Piney Run | 2017 | 4,226 | Good |
| Twin Arch Road over South Br Patapsco River | 1987 | 4,137 | Fair |
| Bartholow Road over Little Morgan Run | 1968 | 4,061 | Fair |
| Md 75 over Little Pipe Creek | 1922 | 4,051 | Fair |
| Md 496 over Bear Branch | 1931 | 4,042 | Fair |
| Md 496 over Br of Big Pipe Creek | 1931 | 4,042 | Fair |
| Md 496 over Big Pipe Creek | 2018 | 3,975 | Good |
| Md 75 over Little Pipe Creek | 1960 | 3,821 | Good |
| Oklahoma Road over Snowden Run | 1971 | 3,466 | Fair |
| Md 86 over Br of Gunpowder Falls | 1972 | 3,442 | Fair |
| Access Road over Georges Run | 2009 | 3,415 | Good |
| Md 86 over Br of Gunpowder Falls | 1929 | 3,322 | Fair |
| Brangels Road over Piney Run | 1974 | 3,125 | Fair |
| Harney Road over Piney Creek | 1958 | 2,818 | Fair |
| Coon Club Road over East Branch Patapsco Riv | 1964 | 2,650 | Fair |
| Md 31 over Sams Creek | 1921 | 2,611 | Fair |
| Trevanion Road over Big Pipe Creek | 1966 | 2,569 | Fair |
| Bollinger Road over Beaver Run | 2012 | 2,328 | Good |
| Md 75 over Abandon Mill Run | 1982 | 2,172 | Fair |
| Md 75 over Sams Creek | 1972 | 2,151 | Fair |
| Md 854B over Morgan Run | 1983 | 1,970 | Fair |
| Harney Road over Alloway Creek | 1919 | 1,911 | Fair |
| Bollinger Road over North Middle Run | 1974 | 1,836 | Good |
| Klees Mill Road over Morgan Run | 1988 | 1,754 | Fair |
| Upper Beckleysvill over Murphy Run | 1960 | 1,745 | Poor |
| Md 84 over Roop Branch | 1948 | 1,702 | Fair |
| Carrollton Road over West Branch Patapsco Riv | 1978 | 1,697 | Good |
| Kays Mill Road over Beaver Run | 1978 | 1,671 | Fair |
| Md 832 over Bear Branch | 1932 | 1,662 | Fair |
| Md 832 over Big Pipe Creek | 1929 | 1,662 | Fair |
| Lawndale Road over North Branch Patapsco Ri | 1995 | 1,582 | Good |
| Eden Mill Road over Tuckers Branch | 1969 | 1,535 | Fair |
| Cape Horn Road Nor over Unnamed Stream | 2019 | 1,457 | Good |
| Shiloh Road over East Branch Patapsco Riv | 1969 | 1,327 | Fair |
| Tyrone Road over Bear Branch | 1960 | 1,322 | Fair |
| Green Mill Road over Beaver Run | 1976 | 1,291 | Fair |
| Gaither Road over South Branch Patapsco Ri | 1978 | 1,282 | Fair |
| Gaither Road over Unnamed Stream | 1989 | 1,282 | Fair |
| Otterdale Mill Roa over Big Pipe Creek | 1930 | 1,268 | Fair |
| Bucher John Road over Little Pipe Creek | 1960 | 1,159 | Good |
| Md 852G over Cranberry Branch | 1985 | 1,150 | Fair |
| Rinehart Road over Big Pipe Creek | 1961 | 1,115 | Fair |
| Roberts Mill Road over Maryland Midland Railway | 1929 | 1,105 | Fair |
| Traceys Mill Road over South Br Gunpowder Falls | 1978 | 1,104 | Fair |
| Old New Windsor Rd over Dickenson Run | 1987 | 1,058 | Good |
| Union Bridge Road over Cherry Branch | 1990 | 1,034 | Good |
| Md 850C over Talbot Branch | 1931 | 999 | Fair |
| Md 852H over West Branch Patapsco Riv | 1911 | 999 | Fair |
| Louisville Road over Middle Run | 1974 | 988 | Fair |
| Salem Bottom Road over Morgan Run | 1964 | 982 | Fair |
| Deep Run Road over Deep Run | 1978 | 942 | Fair |
| Watersville Road over South Branch of Patapsco | 1976 | 938 | Fair |
| Md 84 over Meadow Branch | 2003 | 922 | Good |
| Sams Creek Road over Sams Creek | 1989 | 906 | Fair |
| Slacks Road over Piney Run | 1975 | 905 | Fair |
| Slacks Road over Tributary of Piney Run | 1975 | 905 | Fair |
| Linton Road over Little Morgan Run | 1980 | 867 | Fair |
| Md 77 over Big Pipe Creek | 1977 | 841 | Fair |
| Gillis Road over Gillis Falls | 1975 | 828 | Good |
| Chandler Drive over Beaver Run | 1998 | 825 | Good |
| Wesley Road over North Branch of Patapsco | 1975 | 824 | Fair |
| Freter Road over Piney Run | 2004 | 806 | Good |
| London Bridge Road over Morgan Run | 1956 | 787 | Fair |
| Halter Road over Bear Branch | 1981 | 775 | Fair |
| Mayberry Road over Bear Branch | 1985 | 762 | Good |
| Mayberry Road over Big Pipe Creek | 1987 | 762 | Fair |
| Niner Road over South Branch Middle Run | 1974 | 756 | Fair |
| Hoffman Mill Road over East Branch Patapsco Riv | 1991 | 751 | Fair |
| Hoffman Mill Road over Tributary East of Branch | 1974 | 750 | Good |
| Good Intent Road over Little Pipe Creek | 1977 | 748 | Good |
| Flag Marsh Road over South Br Patapsco River | 1988 | 747 | Fair |
| Carrollton Road over Deep Run | 1960 | 709 | Fair |
| Patapsco Road over West Br Patapsco River | 1980 | 706 | Fair |
| Greenmount Church over Murphy Run | 2010 | 705 | Good |
| Schalk Road No. 1 over Gunpowder Falls | 1980 | 699 | Fair |
| Bixler Church Road over Tributary to Big Pipe CR | 1973 | 694 | Good |
| Buckhorn Road over Buckhorn Run | 1952 | 694 | Fair |
| Frizzellburg Road over Meadow Branch | 1966 | 679 | Fair |
| Bixler Church Road over Ohio Branch | 1974 | 675 | Good |
| Basehores Mill Rd over Big Pipe Creek | 1981 | 669 | Fair |
| Halter Road over Big Pipe Creek | 1966 | 669 | Fair |
| Crouse Mill Road over Big Pipe Creek | 1976 | 668 | Fair |
| Grave Run Road over Gunpowder Falls | 1970 | 660 | Fair |
| Md 854A over Little Morgan Run | 1976 | 647 | Good |
| Stone Road over Silver Run | 1979 | 626 | Good |
| Shepherds Mill Rd over Little Pipe Creek | 2023 | 613 | Good |
| Carrollton Road over East Branch Patapsco Riv | 1972 | 590 | Fair |
| Runkles Road over Middle Run | 1966 | 589 | Fair |
| Bloom Road over Morgan Run | 1980 | 520 | Fair |
| Snowden Run Road over Snowden Run | 1974 | 503 | Fair |
| Silver Run Valley over Big Silver Run | 1900 | 480 | Fair |
| Morgan Road over South Branch Patapsco Ri | 1976 | 470 | Fair |
| Springdale Rd over Little Pipe Creek | 1900 | 457 | Fair |
| Stone Road over Big Pipe Creek | 1984 | 448 | Fair |
| Hoffman Mill Road over Aspen Run | 1999 | 419 | Fair |
| Baker Road over Branch of Morgan Run | 1974 | 408 | Fair |
| Md 852 over Little Pipe Creek | 1900 | 400 | Fair |
| Bear Run Road over Bear Branch | 1974 | 397 | Good |
| Brown Road over Roaring Run | 1985 | 395 | Poor |
| Murkle Road over Big Pipe Creek | 2005 | 377 | Good |
| John Hyde Road over Turkeyfoot Run | 1978 | 362 | Fair |
| Sams Creek Road over Sams Creek | 1986 | 362 | Good |
| Skidmore Road over Gillis Falls | 1988 | 360 | Good |
| Arnold Road over Beaver Run | 1974 | 348 | Fair |
| Hughes Road over Beaver Run | 1976 | 330 | Fair |
| Fringer Road over Piney Creek | 1930 | 326 | Fair |
| John Hyde Road over Little Pipe Creek | 1900 | 320 | Fair |
| Mahuron Road over Unnamed Stream | 2008 | 320 | Good |
| Roop Road over Piney Creek | 1912 | 317 | Fair |
| Richardson Road over Bear Branch | 1991 | 312 | Good |
| Grimville Road over Gillis Falls | 1981 | 280 | Fair |
| Baptist Road over Alloway Creek | 1911 | 269 | Fair |
| Baptist Road over Alloway Creek | 1940 | 269 | Fair |
| Mummaford Road over Monocacy River | 1911 | 268 | Poor |
| Arrington Road over Piney Run | 1958 | 260 | Good |
| Keysville-frederic over Monocacy River | 1900 | 260 | Fair |
| Arters Mill Road over Big Pipe Creek | 1982 | 247 | Fair |
| Arters Mill Road over Silver Run | 1986 | 245 | Good |
| Teeter Road over Piney Creek | 1910 | 236 | Fair |
| Mckinstry Mill Rd over Little Pipe Creek | 1900 | 234 | Poor |
| Piney Creek Road over Alloway Creek | 1900 | 234 | Good |
| Black Rock Road over South Branch Gunpowder F | 2001 | 228 | Good |
| Bowers Road over Alloway Creek | 1988 | 212 | Fair |
| Old Kays Mill Road over Beaver Run | 1974 | 209 | Poor |
| North Tannery Road over West Br Patapsco River | 1974 | 200 | Fair |
| Clear View Road over Meadow Branch | 1984 | 192 | Fair |
| Flickinger Road over Big Pipe Creek | 1940 | 180 | Fair |
| Kump Station Road over Silver Run | 1982 | 179 | Good |
| Eckard Road over Big Pipe Creek | 1984 | 174 | Fair |
| Tank Road over North Br Patapsco River | 1974 | 174 | Fair |
| Patapsco Road over East Br Patapsco River | 1900 | 171 | Poor |
| Hughes Shop Road over Bear Branch | 1974 | 152 | Poor |
| Winters Church Rd over Little Pipe Creek | 1981 | 151 | Good |
| Emory Road over Deep Run | 2000 | 150 | Good |
| Rohrbaugh Road over Grave Run | 1976 | 148 | Fair |
| Berberi Road over Tributary to North Branc | 2005 | 140 | Fair |
| Mckinstrys Mill Rd over Sams Creek | 1972 | 119 | Poor |
| Babylon Road over Silver Run | 1960 | 117 | Fair |
| Hapes Mill Road over Big Pipe Creek | 1974 | 102 | Fair |
| Baumgardner Road over Piney Creek | 1982 | 99 | Fair |
| Twin Arch Road over South Br Patapsco River | 1900 | 98 | Fair |
| Rockland Road over Little Pipe Creek | 1997 | 89 | Good |
| York Road No 1 over South Branch Gunpowder F | 1940 | 88 | Fair |
| Newport Road over Gillis Falls | 2001 | 86 | Good |
| Adams Mill Road over Little Pipe Creek | 1974 | 75 | Fair |
| Saw Mill Road over Big Pipe Creek | 1974 | 54 | Good |
| Starners Dam Road over Monocacy River | 1918 | 36 | Fair |
| Hoover Mill Road over Big Pipe Creek | 1984 | 35 | Good |
| Naylors Mill Road over Big Pipe Creek | 1947 | 24 | Fair |
| Pearre Road over Sams Creek | 1908 | 23 | Fair |
| Baumgardner Road over Piney Creek | 1925 | – | Fair |