| Baughmans Lane over Rock Creek | Poor | 43.0 ft | 20,388 | 1970 |
| Frederick Road over Hunting Creek | Poor | 67.9 ft | 9,402 | 1928 |
| Shookstown Road over Carroll Creek | Poor | 48.9 ft | 6,750 | 1911 |
| Fairview Avenue over Carroll Creek | Poor | 65.0 ft | 2,674 | 1963 |
| Lynn Burke Road over Church Branch | Poor | 38.1 ft | 2,175 | 1965 |
| Opossumtown Pike over Big Tuscarora Creek | Poor | 39.0 ft | 1,070 | 1988 |
| Brethren Church RD over Catoctin Creek | Poor | 61.0 ft | 851 | 1986 |
| Hessong Bridge RD over Fishing Creek | Poor | 88.9 ft | 761 | 1931 |
| Lily Pons Road over Locust Run | Poor | 21.0 ft | 394 | 1977 |
| Poffenberger Road over Catoctin Creek | Poor | 126.0 ft | 390 | 1878 |
| Old Kiln Road over Little Owens Creek | Poor | 45.9 ft | 338 | 1975 |
| Black Ankle Road over Talbot Branch | Poor | 28.9 ft | 278 | 1979 |
| Hornets Nest Road over Friends Creek | Poor | 39.0 ft | 179 | 1981 |
| Old Mill Road over Maryland Midland Railroa | Poor | 37.1 ft | 97 | 1975 |
| US 15 & Ramp 8 over Carroll Creek | Fair | 52.2 ft | 95,190 | 1958 |
| US 15 Nbr over US 40/w. Patrick Street | Fair | 165.0 ft | 95,190 | 1958 |
| US 15 Sbr over US 40/w. Patrick Street | Fair | 165.0 ft | 95,190 | 1958 |
| US 15 Nbr over Rosemont AVE | Fair | 138.1 ft | 93,930 | 1958 |
| US 15 Sbr over Rosemont AVE | Fair | 139.1 ft | 93,930 | 1968 |
| Is 70 Ebr over US 15 | Fair | 199.1 ft | 89,580 | 1968 |
| Is 70 Wbr over US 15 | Fair | 200.1 ft | 89,580 | 1968 |
| Is 270 NB over Bennett Creek | Fair | 79.1 ft | 88,192 | 1950 |
| Is 270 SB over Bennett Creek | Fair | 79.1 ft | 88,192 | 1950 |
| Is 270 over Branch Of Bennett Creek | Fair | 20.7 ft | 86,751 | 1951 |
| Is 70 Ebr & Ramp L over Is 270 | Fair | 252.0 ft | 83,731 | 1955 |
| Is 70 Ebr over Monument Road | Fair | 206.0 ft | 83,710 | 1968 |
| Is 70 Wbr over Monument Road | Fair | 253.9 ft | 83,710 | 1968 |
| US 15 Nbr over West Seventh ST | Fair | 121.1 ft | 83,230 | 1958 |
| US 15 Sbr over West Seventh ST | Fair | 121.1 ft | 83,230 | 1968 |
| Is 270 NB over Md 80 | Fair | 64.0 ft | 81,890 | 1950 |
| Is 270 SB over Md 80 | Fair | 64.0 ft | 81,890 | 1950 |
| Is 270 over Csx Transportation | Fair | 138.1 ft | 80,340 | 1950 |
| Is 270 over Monocacy River | Fair | 506.9 ft | 80,340 | 1950 |
| Is 270 NB over Baker Valley RD | Fair | 59.1 ft | 80,340 | 1950 |
| Is 270 SB over Baker Valley RD | Fair | 59.1 ft | 80,340 | 1950 |
| Is 70 Ebr over Is 70 Ramp A | Fair | 78.1 ft | 78,360 | 1968 |
| Is 70 Wbr over Is 70 Ramp A | Fair | 80.1 ft | 78,360 | 1968 |
| Is 70 EB over Csx Trans. | Fair | 241.1 ft | 77,985 | 1954 |
| Is 70 WB over Csx Trans. | Fair | 259.8 ft | 77,985 | 1954 |
| Is 70 Ebr over US 40al | Fair | 230.0 ft | 74,920 | 1967 |
| Is 70 Wbr over US 40 Alt | Fair | 236.9 ft | 74,920 | 1967 |
| Is 70 Ebr over Mt Tabor Road | Fair | 139.1 ft | 71,007 | 1968 |
| Is 70 Wbr over Mt Tabor Road | Fair | 168.0 ft | 71,007 | 1968 |
| Is 70 over Grindstone Run | Fair | 34.1 ft | 70,011 | 1968 |
| Is 70 Ebr over Harmony RD Little Catoc | Fair | 334.0 ft | 69,153 | 1968 |
| Is 70 Wbr over Harmony RD Little Catoc | Fair | 334.0 ft | 69,153 | 1968 |
| Is 70 over Bush Creek | Fair | 36.1 ft | 69,020 | 1954 |
| Is 70 Ebr over Bill Moxely Road | Fair | 140.1 ft | 69,020 | 1974 |
| Is 70 Wbr over Bill Moxely Road | Fair | 140.1 ft | 69,020 | 1974 |
| Is 70 Ebr over Is 70 Ramp E | Fair | 183.1 ft | 68,800 | 1969 |
| Is 70 Wbr over Is 70 Ramp E | Fair | 138.1 ft | 68,800 | 1969 |
| Is 70 Ebr over Hollow Road | Fair | 151.9 ft | 68,230 | 1968 |
| Is 70 Wbr over Hollow Road | Fair | 155.8 ft | 68,230 | 1968 |
| Is 70 Ebr over Catoctin Creek | Fair | 186.0 ft | 68,230 | 1968 |
| Is 70 WB over Catoctin Creek | Fair | 186.0 ft | 68,230 | 1968 |
| Is 70 over Long Branch | Fair | 66.3 ft | 62,311 | 1985 |
| Is 70 Ebr over Old National Pike | Fair | 180.1 ft | 59,922 | 1985 |
| Is 70 Wbr over Old National Pike | Fair | 180.1 ft | 59,922 | 1985 |
| US 15/340 over Ballenger Creek | Fair | 28.9 ft | 53,991 | 1968 |
| US 40 over Branch Of Rock Creek | Fair | 43.3 ft | 47,332 | 1947 |
| US 15 Sbr over Fishing Creek | Fair | 65.0 ft | 43,080 | 1961 |
| US 15 Nbr over Fishing Creek | Fair | 65.9 ft | 43,080 | 1972 |
| US 15 Sbr over Md 26 | Fair | 179.1 ft | 42,640 | 1968 |
| US 340 Ebr over US 15 Sbr | Fair | 115.2 ft | 32,282 | 1966 |
| US 15 over Little Hunting Creek | Fair | 35.4 ft | 30,800 | 1962 |
| US 15 Nbr over Md 77 Hunting Creek | Fair | 270.0 ft | 30,410 | 1957 |
| US 15 Sbr over Md 77 Hunting Creek | Fair | 270.0 ft | 30,410 | 1985 |
| US 340 over Catoctin Creek | Fair | 414.0 ft | 28,982 | 1961 |
| US 15 over Maryland Midland Rr | Fair | 42.0 ft | 28,321 | 1957 |
| Md 180 Westbound over US 15 | Fair | 269.0 ft | 27,750 | 1968 |
| US 15 over Owens Creek | Fair | 63.0 ft | 27,210 | 1954 |
| US 15 Nbr over Md 550 | Fair | 171.9 ft | 27,210 | 1972 |
| US 15 Sbr over Md 550 | Fair | 173.9 ft | 27,210 | 1982 |
| US 15 Nbr over Little Owens Creek | Fair | 46.9 ft | 27,210 | 1982 |
| US 340 over Little Catoctin Creek | Fair | 24.3 ft | 24,600 | 1964 |
| US 340 Ebr over Md 180 Wbr | Fair | 216.9 ft | 23,492 | 1964 |
| US 340 Ebr over S Mountain Road | Fair | 123.0 ft | 23,492 | 1964 |
| US 340 Wbr over S Mountain Road | Fair | 103.0 ft | 23,492 | 1964 |
| US 40 Wbr over Rock Creek | Fair | 42.0 ft | 20,782 | 1936 |
| US 15 over Potomac River Csx C&o | Fair | 1700.1 ft | 20,473 | 1939 |
| Baughmans Lane over Carroll Creek | Fair | 56.1 ft | 20,388 | 1961 |
| US 15 SB over Toms Creek | Fair | 106.0 ft | 18,340 | 1965 |
| US 15 SB over Flat Run | Fair | 105.0 ft | 18,340 | 1965 |
| US 15 Nbr over Toms Creek | Fair | 109.9 ft | 18,340 | 1980 |
| Md 85 over Ballenger Creek | Fair | 60.0 ft | 17,450 | 1926 |
| Md 26 over Monocacy River | Fair | 323.2 ft | 16,296 | 1932 |
| Md 26 over Monocacy River | Fair | 329.1 ft | 16,275 | 1997 |
| East Street over Carroll Creek | Fair | 28.9 ft | 15,334 | 1999 |
| US 15 SB over Little Owens Creek | Fair | 40.0 ft | 14,250 | 1954 |
| Is 270 Wbr(ramp 1) over Is 70 Ebr | Fair | 223.1 ft | 14,067 | 1967 |
| Md 144fa over Monocacy River | Fair | 526.9 ft | 13,861 | 1955 |
| Is 70 Ramp A & E over US 15/us 340 | Fair | 183.1 ft | 13,542 | 1968 |
| Md 144fa & Co RD over Long Branch | Fair | 25.3 ft | 13,511 | 1954 |
| Is 70 Ramp A over Md 180 | Fair | 126.0 ft | 12,984 | 1968 |
| I 70 Ramp B (4) over Md 180 | Fair | 105.0 ft | 12,602 | 1996 |
| Md 355 over Monocacy River | Fair | 315.0 ft | 12,583 | 1930 |
| Md 144fa over Is 70 | Fair | 293.0 ft | 11,771 | 1984 |
| Willowdale Drive over Rock Creek | Fair | 29.9 ft | 11,232 | 1976 |
| Md 75 over Bens Branch | Fair | 33.5 ft | 10,783 | 1964 |
| Thomas Johnson Dri over Two Mile Run | Fair | 21.0 ft | 10,567 | 1981 |
| S. Carroll Street over Carroll Creek | Fair | 68.9 ft | 10,130 | 1991 |
| North Mccain Drive over Rock Creek | Fair | 58.1 ft | 9,790 | 1996 |
| Md 75 over Is 70 | Fair | 269.0 ft | 9,752 | 1973 |
| Monocacy Boulevard over Monocacy River | Fair | 517.1 ft | 9,462 | 1966 |
| US 40 Alt over Catoctin Creek | Fair | 85.0 ft | 9,212 | 1923 |
| Md 28 over Monocacy River | Fair | 449.5 ft | 9,175 | 1931 |
| Md 140 over US 15 | Fair | 253.0 ft | 9,010 | 1971 |
| South Market Stree over Carroll Creek | Fair | 104.0 ft | 8,900 | 1988 |
| S. Court Street over Carroll Creek | Fair | 101.0 ft | 8,370 | 1988 |
| Md 75 over Fahrney Branch | Fair | 37.1 ft | 7,952 | 1933 |
| Md 75 over Pleasant Branch | Fair | 44.9 ft | 7,952 | 1930 |
| Md 75 over Bennett Creek | Fair | 74.1 ft | 7,952 | 1974 |
| Md 17 over Is 70 | Fair | 334.0 ft | 7,931 | 1968 |
| Md 550 over Friends Creek | Fair | 21.0 ft | 7,861 | 1981 |
| US 15 Bu over Toms Creek | Fair | 80.1 ft | 7,680 | 1923 |
| N. Bentz Street over Carroll Creek | Fair | 145.0 ft | 7,250 | 1992 |
| Old Camp Road over Rock Creek | Fair | 32.2 ft | 7,210 | 1976 |
| Montevue Lane over Carroll Creek | Fair | 49.9 ft | 6,880 | 1995 |
| Md 85 over Rocky Fountain Run | Fair | 25.9 ft | 6,713 | 1929 |
| Md 75 over Bush Creek | Fair | 86.0 ft | 6,492 | 1972 |
| Biggs Ford Road over Monocacy River | Fair | 500.0 ft | 6,393 | 1970 |
| Yellow Springs Roa over Little Tuscarora Creek | Fair | 24.0 ft | 6,340 | 1930 |
| Hayward Road over Opossum Branch | Fair | 39.0 ft | 6,312 | 1990 |
| Md 28 over Br Of Potomac River | Fair | 21.0 ft | 6,272 | 1937 |
| Md 17 over Csx Trans. Potomac Mun | Fair | 2430.1 ft | 6,073 | 1953 |
| Waverly Drive over Rock Creek | Fair | 37.1 ft | 5,943 | 1971 |
| Highland Street over Carroll Creek | Fair | 110.9 ft | 5,850 | 1988 |
| Mount Phillip Road over Branch Of Rock Creek | Fair | 20.0 ft | 5,847 | 1980 |
| US 40 over Middle Creek | Fair | 121.7 ft | 5,522 | 1936 |
| US 40 over Little Catoctin Creek | Fair | 38.1 ft | 5,522 | 1936 |
| US 40 over Trib To Hawbottom Branch | Fair | 35.1 ft | 5,522 | 1936 |
| Md 26 over Dollyhyde Creek | Fair | 21.0 ft | 5,482 | 1932 |
| Md 26 over Linganore Creek | Fair | 65.9 ft | 5,482 | 1950 |
| US 40 over Catoctin Creek | Fair | 49.9 ft | 5,432 | 1936 |
| Mt Zion Road over US 15/us 340 | Fair | 213.9 ft | 5,420 | 1968 |
| Md 26 over N Fork Linganore Creek | Fair | 41.7 ft | 5,272 | 1950 |
| Md 26 over Branch Of Linganore Cree | Fair | 99.1 ft | 5,272 | 1950 |
| Mt Phillip Road over Is 70 | Fair | 232.0 ft | 5,102 | 1967 |
| Md 75 over Linganore Creek | Fair | 124.0 ft | 4,752 | 1968 |
| Md 180 over Catoctin Creek | Fair | 207.0 ft | 4,580 | 1928 |
| Christophers Cross over Edison Branch | Fair | 20.0 ft | 4,532 | 1989 |
| Md 140 over Middle Creek | Fair | 76.1 ft | 4,480 | 1932 |
| Md 80 over Monocacy River | Fair | 500.0 ft | 4,472 | 1973 |
| Md 180 over US 340 | Fair | 292.0 ft | 4,460 | 1964 |
| Md 77 over Hunting Creek | Fair | 70.9 ft | 4,351 | 1970 |
| Mill Island PKWY over Tuscarora Creek | Fair | 186.0 ft | 4,274 | 1996 |
| Walter Martz Road over Little Tuscarora Creek | Fair | 47.9 ft | 4,173 | 2012 |
| Bartholows Road over Is 70 Csx Transportatio | Fair | 665.0 ft | 3,994 | 1974 |
| Key Parkway over Rock Creek | Fair | 36.1 ft | 3,931 | 1990 |
| Biggs Ford Road over Dublin Branch | Fair | 27.9 ft | 3,911 | 2004 |
| Md 17 over Catoctin Creek | Fair | 97.1 ft | 3,891 | 1928 |
| Md 180 over Ballenger Creek | Fair | 30.8 ft | 3,850 | 1925 |
| Md 180 over Is 70 | Fair | 275.9 ft | 3,850 | 1968 |
| Wwtp Road over Carroll Creek | Fair | 98.4 ft | 3,813 | 1936 |
| Reichs Ford Road over Monocacy River | Fair | 544.0 ft | 3,711 | 1973 |
| Md 550 over Monocacy River | Fair | 424.9 ft | 3,691 | 1967 |
| Ijamsville Road over Bush Creek | Fair | 203.1 ft | 3,667 | 2016 |
| Schifferstadt Boul over Tributary No. 8 | Fair | 74.1 ft | 3,655 | 1986 |
| Schifferstadt Boul over Detrick Branch | Fair | 33.5 ft | 3,655 | 1990 |
| W. College Terrace over Carroll Creek | Fair | 58.1 ft | 3,615 | 1933 |
| Md 550 over Dorcus Branch | Fair | 24.0 ft | 3,541 | 1925 |
| Devilbiss Bridge R over Fishing Creek | Fair | 120.1 ft | 3,507 | 1979 |
| Old Frederick Road over Hunting Creek | Fair | 173.9 ft | 3,445 | 1995 |
| Tuscanney Drive over Edison Branch | Fair | 37.1 ft | 3,421 | 1998 |
| Holter Road over Hollow Creek | Fair | 45.9 ft | 3,394 | 1920 |
| Devilbiss Bridge R over Monocacy River | Fair | 500.0 ft | 3,371 | 1980 |
| Md 77 over Br Of Hunting Creek | Fair | 29.9 ft | 3,271 | 1971 |
| Md 77 over Hunting Creek | Fair | 43.3 ft | 3,271 | 1970 |
| Md 28 over Tuscarora Creek | Fair | 113.8 ft | 3,212 | 2007 |
| Yeagertown Road over Local Stream | Fair | 30.8 ft | 3,203 | 1982 |
| Md 77 over Owens Creek | Fair | 127.0 ft | 3,131 | 1932 |
| Crum Road over Israel Creek | Fair | 74.1 ft | 3,121 | 1994 |
| Md 17 over Little Catoctin Creek | Fair | 65.9 ft | 3,046 | 1920 |
| Linganore Road over Linganore Creek | Fair | 243.1 ft | 2,983 | 1976 |
| Md 550 over Cabbage Run | Fair | 26.9 ft | 2,785 | 1939 |
| Petersville Road over Little Catoctin Creek | Fair | 37.1 ft | 2,782 | 1941 |
| Lander Road over US 340 | Fair | 232.9 ft | 2,734 | 1965 |
| Devilbiss Bridge R over Glade Creek | Fair | 32.2 ft | 2,691 | 1972 |
| Dogwood Drive over Tributary No. 8 | Fair | 86.3 ft | 2,485 | 1986 |
| Md 478 over Br Of Potomac River | Fair | 25.9 ft | 2,471 | 1926 |
| Ballenger Creek Pi over Ballenger Creek | Fair | 253.0 ft | 2,462 | 2003 |
| Bel Aire Lane over Rock Creek | Fair | 57.1 ft | 2,144 | 1993 |
| Md 17 over Broad Run | Fair | 30.5 ft | 2,061 | 1959 |
| Md 17 over US 340 | Fair | 235.9 ft | 2,061 | 1964 |
| Bethel Road over Fishing Creek | Fair | 63.0 ft | 2,050 | 1961 |
| Legore Bridge Road over Monocacy River | Fair | 247.0 ft | 2,045 | 1903 |
| Md 17 over Middle Creek | Fair | 66.9 ft | 1,951 | 1889 |
| US 15 Bu over Flat Run | Fair | 49.9 ft | 1,820 | 1927 |
| Creamery Road over Branch Of Flat Run | Fair | 23.0 ft | 1,817 | 1991 |
| Oakdale School Roa over Tributary To Long Branch | Fair | 58.7 ft | 1,790 | 2001 |
| Opossumtown Pike over Little Tuscarora Creek | Fair | 33.1 ft | 1,783 | 1975 |
| Links Bridge Road over Monocacy River | Fair | 547.9 ft | 1,685 | 1980 |
| Milt Summers Road over Grindstone Run | Fair | 44.9 ft | 1,657 | 1977 |
| College Avenue over Carroll Creek Floodplain | Fair | 80.1 ft | 1,652 | 1992 |
| Thurston Road over Bennett Creek | Fair | 50.9 ft | 1,632 | 1964 |
| Md 383 over Catoctin Creek | Fair | 206.0 ft | 1,550 | 1953 |
| Annandale Road over Toms Creek | Fair | 118.1 ft | 1,505 | 1980 |
| Westview Drive over Quarry Branch | Fair | 23.0 ft | 1,500 | 2004 |
| College Avenue over Carroll Creek | Fair | 66.6 ft | 1,481 | 1925 |
| Stottlemyer Road over Middle Creek | Fair | 56.1 ft | 1,456 | 1977 |
| Daysville Road over Israel Creek | Fair | 75.1 ft | 1,392 | 1990 |
| Ridge Road over Is 70 | Fair | 393.0 ft | 1,374 | 1972 |
| Woodville Road over Woodville Branch | Fair | 21.0 ft | 1,333 | 1972 |
| Albert Staub Road over Owens Creek | Fair | 97.1 ft | 1,323 | 1982 |
| Unionville Road over Trib. Of Linganore Creek | Fair | 48.9 ft | 1,309 | 1929 |
| Md 180 over Little Catoctin Creek | Fair | 24.9 ft | 1,300 | 1912 |
| Md 77 over Beaver Branch | Fair | 61.0 ft | 1,211 | 1928 |
| Milt Summers Road over Trib. Of Catoctin Creek | Fair | 35.1 ft | 1,210 | 1977 |
| Glenbrook Drive over Hollow Creek | Fair | 82.0 ft | 1,115 | 2004 |
| Sugarloaf Parkway over Peter Pan Run | Fair | 42.0 ft | 1,080 | 2002 |
| Md 806a over High Run | Fair | 23.0 ft | 1,072 | 1950 |
| Md 806a over Little Hunting Creek | Fair | 33.1 ft | 1,072 | 1927 |
| Ballenger Creek Pi over Doubs Branch | Fair | 20.0 ft | 1,065 | 1975 |
| Elmer Derr Road over US 15 | Fair | 226.0 ft | 999 | 1969 |
| Hessong Bridge RD over Little Hunting Creek | Fair | 65.0 ft | 980 | 1905 |
| Manor Woods Road over Tuscarora Creek | Fair | 33.1 ft | 965 | 1970 |
| Provincial Parkway over Flat Run | Fair | 25.9 ft | 953 | 1991 |
| Rocky Ridge Road ( over Monocacy River | Fair | 226.7 ft | 937 | 1932 |
| Woodville Road over Talbot Branch | Fair | 38.1 ft | 890 | 1961 |
| Old Frederick Road over Owens Creek | Fair | 84.6 ft | 843 | 1869 |
| Hessong Bridge RD over Hunting Creek | Fair | 67.9 ft | 842 | 1965 |
| Harney Road over Middle Creek | Fair | 45.9 ft | 811 | 1971 |
| Brunswick Street over Local Stream | Fair | 23.6 ft | 797 | 1962 |
| Quinn Road over Is 70 | Fair | 246.1 ft | 792 | 1985 |
| Old Frederick Road over Beaver Branch | Fair | 20.0 ft | 784 | 1975 |
| Park Mills Road over Is 270 | Fair | 220.1 ft | 742 | 1950 |
| Harbaugh Valley Ro over Branch Of Friends Creek | Fair | 22.0 ft | 713 | 1985 |
| Mussetter Road over Is 70 | Fair | 241.1 ft | 691 | 1973 |
| Park Mills Road over Bennett Creek | Fair | 163.1 ft | 674 | 1965 |
| Longs Mill Road over Owens Creek | Fair | 125.0 ft | 670 | 1979 |
| Lily Pons Road over Monocacy River | Fair | 625.0 ft | 610 | 1977 |
| Foxville Deerfield over Owens Creek | Fair | 86.0 ft | 580 | 1978 |
| Park Mills Road over Monocacy River | Fair | 638.1 ft | 557 | 1979 |
| Sundays Lane over Tuscarora Creek | Fair | 65.9 ft | 505 | 1978 |
| US 15 Ramp J over Hunting Creek | Fair | 65.0 ft | 500 | 1985 |
| Unionville Road over Weldon Creek | Fair | 34.1 ft | 493 | 1929 |
| Keysville Road over Toms Creek | Fair | 103.0 ft | 470 | 1876 |
| Crow Rock Road over Middle Creek | Fair | 80.1 ft | 460 | 1897 |
| Cap Stine Road over Tuscarora Creek | Fair | 22.0 ft | 451 | 1985 |
| Blacks Mill Road over Big Hunting Creek | Fair | 69.9 ft | 450 | 1914 |
| Lily Pons Road over Small Stream | Fair | 28.9 ft | 394 | 1976 |
| Old Mill Road over Owens Creek | Fair | 70.5 ft | 360 | 1882 |
| Appolds Road over Beaver Branch | Fair | 22.0 ft | 346 | 1972 |
| Mountaindale Road over Fishing Creek | Fair | 80.1 ft | 346 | 1979 |
| Arnoldtown Road over Broad Run | Fair | 42.0 ft | 339 | 1982 |
| Doubs Road over Tuscarora Creek | Fair | 26.9 ft | 327 | 1950 |
| Bullfrog Road over Monocacy River | Fair | 183.1 ft | 324 | 1908 |
| Lehigh Road over Sams Creek | Fair | 28.9 ft | 322 | 1998 |
| Monument Road over Grindstone Run | Fair | 35.1 ft | 311 | 1977 |
| Utica Road over Fishing Creek | Fair | 87.9 ft | 298 | 1860 |
| Brice Road over Muddy Run | Fair | 22.0 ft | 292 | 1998 |
| Timmons Road over Linganore Creek | Fair | 106.0 ft | 276 | 1974 |
| Mt Ephraim Road over Bennett Creek | Fair | 116.1 ft | 260 | 1974 |
| Hoffman Seachrist over Dorcus Branch | Fair | 24.0 ft | 260 | 1963 |
| Sixes Bridge Road over Monocacy River | Fair | 240.2 ft | 207 | 1910 |
| E. Church Hill RD over Middle Creek | Fair | 65.9 ft | 204 | 1908 |
| Simpsons Mill Road over Little Pipe Creek | Fair | 89.9 ft | 200 | 1890 |
| Pleasant View RD over Tuscarora Creek | Fair | 24.0 ft | 191 | 1982 |
| Catholic Church RD over US 340 | Fair | 257.9 ft | 190 | 1964 |
| Grimes Road over Toms Creek | Fair | 111.9 ft | 170 | 1914 |
| Road over Owens Creek | Fair | 35.1 ft | 160 | 1970 |
| Point Of Rocks Roa over C&o Canal | Fair | 78.4 ft | 159 | 1890 |
| Dollyhyde Road over North Fork Linganore Crk | Fair | 50.9 ft | 151 | 1960 |
| Horine Road over US 340 | Fair | 227.0 ft | 148 | 1965 |
| Buck Lantz Road over Owens Creek | Fair | 25.9 ft | 141 | 1982 |
| Ward Kline Road over Little Catoctin Creek | Fair | 32.2 ft | 138 | 1981 |
| Bennies Hill Road over Catoctin Creek | Fair | 94.2 ft | 136 | 1880 |
| Stevens Road over Hunting Creek | Fair | 98.8 ft | 135 | 1890 |
| Station Road over Catoctin Creek | Fair | 62.0 ft | 133 | 1920 |
| Sugarloaf Mtn RD over Br Of Bennett Creek | Fair | 26.9 ft | 133 | 1981 |
| Lime Plant Road over Tributary Of Bens Branch | Fair | 21.0 ft | 128 | 1972 |
| Sumantown Road over Catoctin Creek | Fair | 101.0 ft | 124 | 1900 |
| Friends Creek Road over Friends Creek | Fair | 65.9 ft | 123 | 1910 |
| Roy Shafer Road over Cone Branch | Fair | 50.9 ft | 105 | 1982 |
| North Beach Road over Hunting Creek | Fair | 21.0 ft | 100 | 1980 |
| Easterday Road over Little Catoctin Creek | Fair | 28.9 ft | 90 | 1982 |
| ST Marks Road over US 340 | Fair | 229.0 ft | 53 | 1964 |
| Limestone Lane over Br Of Hollow Creek | Fair | 22.0 ft | 50 | 1960 |
| Gambrill Park Road over Little Fishing Creek | Fair | 21.0 ft | 50 | 1980 |
| Private Lane over Fishing Creek | Fair | 46.9 ft | 50 | 2007 |
| Maintenance Road over Blue Blazes Creek | Fair | 20.3 ft | 50 | 1960 |
| Poffenberger Road over Lewis Mill Branch | Fair | 38.1 ft | 32 | 1982 |
| US 40 Median Cross over Rock Creek | Fair | 24.9 ft | 25 | 1969 |
| Norman Balm Entran over Abandoned Rr | Fair | 32.2 ft | 5 | 1920 |
| Is 270 over Md 85 (buckeystown Pike) | Good | 432.1 ft | 111,550 | 2020 |
| Is 70 Wbr over US 40 Ebr(ramp 5) | Good | 134.8 ft | 94,760 | 2002 |
| Is 270 over DR Perry RD | Good | 80.1 ft | 87,230 | 2010 |
| Is 70 Wbr over Is 270 | Good | 358.9 ft | 83,731 | 1968 |
| Is 70 Ebr over Monocacy River | Good | 583.0 ft | 72,900 | 1985 |
| Is 70 Wbr over Monocacy River | Good | 583.0 ft | 72,900 | 1985 |
| Is 70 Ebr over Csx Trans And South Stre | Good | 261.8 ft | 68,623 | 2013 |
| Is 70 Wbr over Csx Trans And South ST | Good | 261.8 ft | 68,623 | 2013 |
| Is 70 Ebr over Spring Ridge PKWY | Good | 89.9 ft | 59,922 | 1985 |
| Is 70 Wbr over Spring Ridge PKWY | Good | 89.9 ft | 59,922 | 1985 |
| US 15b over US 15/us 40 | Good | 225.1 ft | 45,900 | 1955 |
| US 15 SB over Tuscarora Creek | Good | 74.1 ft | 45,700 | 1950 |
| US 15 Nbr over Tuscarora Creek | Good | 73.8 ft | 45,700 | 1972 |
| US 15 Nbr over Md 26 | Good | 96.8 ft | 42,640 | 2018 |
| Md 85 over Is 70 | Good | 171.9 ft | 35,962 | 2009 |
| US 15 Nbr over Md 15c | Good | 113.8 ft | 30,800 | 1985 |
| US 15 Sbr over Md 15c | Good | 113.8 ft | 30,800 | 1985 |
| Md 180 Eastbound over US 15 | Good | 276.6 ft | 27,750 | 2020 |
| New Design Road over Ballenger Creek | Good | 193.9 ft | 19,907 | 1998 |
| Md 355 over Is 70 | Good | 225.1 ft | 19,242 | 2008 |
| US 15 Nbr over Flat Run | Good | 105.0 ft | 18,340 | 1981 |
| New Design Road over Is 70 | Good | 334.0 ft | 17,294 | 2002 |
| New Design Road over Arundel Branch | Good | 94.2 ft | 17,000 | 1998 |
| New Design Road over Is 270 | Good | 290.0 ft | 16,733 | 2001 |
| Monocacy Boulevard over Carroll Creek | Good | 264.1 ft | 16,392 | 2012 |
| Ballenger Creek Pi over Pike Branch | Good | 27.6 ft | 14,501 | 2003 |
| Is 270 Ramps J & F over New Design Road | Good | 231.0 ft | 14,067 | 2002 |
| Gas House Pike over Linganore Creek | Good | 83.7 ft | 13,056 | 2021 |
| Gas House Pike over Linganore Creek | Good | 56.8 ft | 13,056 | 2021 |
| Md 26 over Israel Creek | Good | 206.0 ft | 10,092 | 2000 |
| Md 355 over Bennett Creek | Good | 165.0 ft | 9,500 | 2022 |
| Crestwood BLVD over Arundel Branch | Good | 32.2 ft | 9,500 | 1990 |
| Monocacy Boulevard over Park Branch | Good | 63.6 ft | 9,321 | 2018 |
| Monocacy Boulevard over Monocacy River | Good | 680.4 ft | 9,321 | 2000 |
| Monocacy Boulevard over Monocacy River | Good | 531.2 ft | 9,321 | 2019 |
| Md 140 over Flat Run | Good | 86.3 ft | 9,011 | 2019 |
| Md 144fa over Carroll Creek | Good | 44.0 ft | 8,541 | 1995 |
| Corporate Drive over King Branch | Good | 35.1 ft | 8,118 | 1992 |
| Md 17 over Catoctin Creek | Good | 46.3 ft | 7,835 | 1989 |
| US 40 Ebr over Is 70 Ramp F (02) | Good | 165.0 ft | 7,362 | 1969 |
| Md 550 over Owens Creek | Good | 91.9 ft | 7,221 | 1996 |
| Montevue Lane over Tributary 96 | Good | 30.8 ft | 6,880 | 1995 |
| Md 144fa over Carroll Creek | Good | 104.0 ft | 6,869 | 1994 |
| Executive Way over Ballenger Creek | Good | 282.2 ft | 6,345 | 2007 |
| Corporate Drive over Arundel Branch | Good | 54.1 ft | 6,273 | 1990 |
| Motter AVE over US 15 | Good | 288.7 ft | 6,041 | 2014 |
| Corporate Drive over Pike Branch | Good | 42.0 ft | 5,986 | 1993 |
| Corporate Drive over Pike Branch | Good | 42.0 ft | 5,986 | 1993 |
| Boyers Mill Road over Lake Linganore | Good | 307.4 ft | 5,776 | 2017 |
| Md 140 over Monocacy River | Good | 171.9 ft | 5,655 | 2013 |
| Spring Ridge Prkwy over Long Branch | Good | 24.9 ft | 5,407 | 1991 |
| Christophers Cross over Tributary Of Tuscarora C | Good | 80.4 ft | 4,896 | 2004 |
| Christophers Cross over Tributary 89 | Good | 78.1 ft | 4,430 | 2019 |
| Md 194 over Little Pipe Creek | Good | 136.2 ft | 4,425 | 1953 |
| Md 464 over Catoctin Creek | Good | 303.1 ft | 4,040 | 2010 |
| Md 140 over Cattail Branch | Good | 64.3 ft | 4,001 | 1987 |
| Willow Brook Road over Tuscarora Creek | Good | 28.9 ft | 3,811 | 1982 |
| Is 70 Ramp 7 over US 40 Ramp 5 | Good | 124.0 ft | 3,723 | 2002 |
| US 40 Ramp F(2) over Rock Creek | Good | 36.7 ft | 3,593 | 1969 |
| Md 17 over Dry Run | Good | 27.2 ft | 3,480 | 1981 |
| Md 550 over Israel Creek | Good | 58.1 ft | 3,450 | 2015 |
| Old Frederick Road over Fishing Creek | Good | 72.8 ft | 3,332 | 1954 |
| Mountville Road over Tuscarora Creek | Good | 33.1 ft | 3,284 | 1989 |
| Terra Firma Road over Long Branch | Good | 66.9 ft | 3,143 | 2006 |
| Old Annapolis Road over Linganore Creek | Good | 399.0 ft | 2,931 | 1989 |
| Md 17 over Middle Creek | Good | 55.1 ft | 2,900 | 2024 |
| Ridgefield Drive over Long Branch | Good | 24.9 ft | 2,707 | 1991 |
| Old Middletown RD over Lewis Mill Branch | Good | 26.9 ft | 2,532 | 1962 |
| Kingsbrook Drive over King Branch | Good | 29.9 ft | 2,500 | 1992 |
| Md 478 over Br Of Potomac River | Good | 58.4 ft | 2,471 | 2019 |
| Gas House Pike over Bens Branch | Good | 38.1 ft | 2,353 | 1982 |
| Coppermine Road over Israel Creek | Good | 65.9 ft | 2,172 | 1966 |
| Big Woods Road over Bennett Creek | Good | 99.1 ft | 2,120 | 2007 |
| New London Road over Bens Branch | Good | 92.8 ft | 2,079 | 2005 |
| Bill Moxley Road over Bush Creek | Good | 23.0 ft | 2,017 | 1973 |
| Md 17 over Middle Creek | Good | 81.0 ft | 1,951 | 1994 |
| Md 17 over Middle Creek | Good | 30.8 ft | 1,951 | 2005 |
| Md 17 over Middle Creek | Good | 132.9 ft | 1,951 | 2005 |
| Md 17 over Middle Creek | Good | 110.9 ft | 1,951 | 2005 |
| Mount Phillip Road over Ballenger Creek | Good | 20.0 ft | 1,913 | 1975 |
| Ballenger Creek Pi over Br Of Tuscarora Creek | Good | 26.9 ft | 1,797 | 2009 |
| Wormans Mill Court over Tributary No. 10 | Good | 20.0 ft | 1,680 | 1986 |
| Daysville Road over Cabbage Run | Good | 60.0 ft | 1,619 | 1975 |
| Moser Road over Hunting Creek | Good | 56.8 ft | 1,372 | 1975 |
| Cap Stine Road over Renn Branch | Good | 22.0 ft | 1,359 | 1985 |
| Harmony Road over Little Catoctin Creek | Good | 76.8 ft | 1,296 | 1999 |
| Reels Mill Road over Bush Creek | Good | 82.0 ft | 1,282 | 1975 |
| Bill Moxley Road over Branch Of Bush Creek | Good | 25.9 ft | 1,212 | 1973 |
| Roddy Road over Owens Creek | Good | 39.0 ft | 1,170 | 1856 |
| Md 75 over Haines Branch | Good | 37.4 ft | 1,150 | 2015 |
| Weller Road over Church Branch | Good | 26.9 ft | 1,131 | 1982 |
| Water Street Road over Israel Creek | Good | 100.1 ft | 1,100 | 2006 |
| Sugarloaf Parkway over Trib Of Peter Pan Run | Good | 36.1 ft | 1,080 | 1999 |
| Reichs Ford Road over Bush Creek | Good | 95.1 ft | 1,015 | 2020 |
| Old Middletown RD over Cone Branch | Good | 37.1 ft | 966 | 1974 |
| Old Middletown RD over Hollow Creek | Good | 40.0 ft | 966 | 1974 |
| Gapland Road over Broad Run | Good | 109.9 ft | 960 | 2007 |
| Old Hagerstown RD over Little Catoctin Creek | Good | 85.0 ft | 938 | 1994 |
| Woodville Road over South Fork Linganore Crk | Good | 37.1 ft | 909 | 1972 |
| Ball Road over Peter Pan Run | Good | 21.7 ft | 906 | 2018 |
| Md 76 over Motters Run | Good | 26.9 ft | 903 | 2012 |
| Md 76 over Maryland Midland Rr | Good | 58.1 ft | 901 | 2001 |
| Glissans Mill RD over South Fork Linganore Crk | Good | 56.1 ft | 884 | 1983 |
| Md 77 over Double Pipe Creek | Good | 214.9 ft | 841 | 1989 |
| Reichs Ford Road over Bush Creek | Good | 65.0 ft | 817 | 1909 |
| Harney Road over Monocacy River | Good | 387.1 ft | 815 | 1989 |
| Prices Distillery over Fahrney Branch | Good | 43.0 ft | 750 | 1983 |
| Bidle Road over Catoctin Creek | Good | 84.0 ft | 650 | 2009 |
| Good Intent Road over Beaver Dam Creek | Good | 30.8 ft | 616 | 1972 |
| Singleton Drive over Trib Of Peter Pan Run | Good | 42.0 ft | 600 | 1999 |
| Allen Linton BLVD over Tributary Of Ballenger C | Good | 88.9 ft | 585 | 2008 |
| Carriage Hill Driv over Tributary Of Peter Pan R | Good | 24.0 ft | 580 | 2004 |
| Linganore Road over Is 70 | Good | 257.9 ft | 550 | 1985 |
| Kelbaugh Road over Owens Creek | Good | 47.9 ft | 533 | 2001 |
| Coxey Brown Road over Little Catoctin Creek | Good | 35.1 ft | 517 | 1983 |
| Stauffer Road over Israel Creek | Good | 90.9 ft | 517 | 1998 |
| Jefferson Technolo over US Route 340/15 Intercha | Good | 184.4 ft | 500 | 2015 |
| Pete Wiles Road over Little Catoctin Creek | Good | 60.7 ft | 485 | 1973 |
| Brandenburg Hollow over Middle Creek | Good | 27.9 ft | 483 | 1976 |
| Thurston Road over Little Bennett Creek | Good | 57.1 ft | 478 | 1986 |
| Lewistown Road over Fishing Creek | Good | 61.4 ft | 466 | 1920 |
| Picnic Woods Road over Broad Run | Good | 45.9 ft | 466 | 1974 |
| Bloomfield Road over Tuscarora Creek | Good | 24.0 ft | 439 | 1982 |
| Monument Road over Grindstone Run | Good | 43.0 ft | 421 | 1982 |
| Monument Road over Grindstone Run | Good | 34.1 ft | 421 | 1977 |
| Ford Road over Clifford Branch | Good | 23.0 ft | 414 | 1980 |
| Sams Creek Road over Sams Creek | Good | 32.2 ft | 412 | 1987 |
| Arnoldtown Road over Trib. Of Broad Run | Good | 22.0 ft | 407 | 1984 |
| Picnic Woods Road over Broad Run | Good | 24.9 ft | 403 | 1974 |
| Kelbaugh Road over Little Owens Creek | Good | 54.1 ft | 392 | 1974 |
| Winchester Bouleva over Tributary Of Tuscarora C | Good | 27.9 ft | 350 | 2002 |
| Winchester Bouleva over Tributary Of Tuscarora C | Good | 24.9 ft | 350 | 1992 |
| Apples Church Road over Owens Creek | Good | 65.9 ft | 350 | 1917 |
| Fishers Hollow RD over Little Catoctin Creek | Good | 36.1 ft | 337 | 1983 |
| Catholic Church RD over Broad Run | Good | 40.0 ft | 331 | 1974 |
| Artie Kemp Road over Town Branch | Good | 30.8 ft | 311 | 1982 |
| Monument Road over Grindstone Run | Good | 33.1 ft | 311 | 1977 |
| Mt. Tabor Road over Grindstone Run | Good | 29.9 ft | 304 | 1982 |
| Eylers Valley Road over Trib. Of Owens Creek | Good | 24.0 ft | 295 | 1983 |
| Picnic Woods Road over Middle Creek | Good | 28.9 ft | 278 | 1974 |
| Creamery Road over Toms Creek | Good | 86.0 ft | 263 | 1928 |
| Marker Road over Middle Creek | Good | 24.9 ft | 246 | 2008 |
| Sunshine Trail RD over Friends Creek | Good | 33.1 ft | 240 | 1975 |
| Mount Tabor Road over Trib. Of Catoctin Creek | Good | 29.9 ft | 220 | 1995 |
| Othello Regional P over Local Stream | Good | 44.9 ft | 217 | 2020 |
| Barnes Road over Weldon Creek | Good | 41.0 ft | 216 | 1979 |
| Talbot Run Road over Talbot Branch | Good | 26.9 ft | 215 | 1979 |
| Lenhart Road over Fishing Creek | Good | 32.2 ft | 213 | 1980 |
| Bunker Hill Road over Beaver Dam Creek | Good | 25.9 ft | 212 | 1962 |
| Rock Hall Road over Washington Run | Good | 28.9 ft | 202 | 1983 |
| Hoffman Seachrist over Cabbage Run | Good | 54.1 ft | 202 | 1985 |
| Irishtown Road over Flat Run | Good | 35.1 ft | 201 | 1982 |
| Catoctin Hollow RD over Little Hunting Creek | Good | 29.9 ft | 201 | 1980 |
| Dixon Road over Bennett Creek | Good | 44.0 ft | 200 | 1904 |
| Utica District Par over Tributary Of Fishing Cre | Good | 24.0 ft | 200 | 2020 |
| St. Marks Road over Broad Run | Good | 73.2 ft | 196 | 1900 |
| St. Marks Road over Trib. Of Broad Run | Good | 20.0 ft | 196 | 1982 |
| Easterday Road over Little Catoctin Creek | Good | 27.9 ft | 196 | 1982 |
| Dollyhyde Road over Dollyhyde Creek | Good | 26.9 ft | 186 | 1982 |
| Cap Stine Road over Br Of Tuscarora Creek | Good | 21.0 ft | 183 | 1975 |
| Spruce Run Road over Middle Creek | Good | 29.9 ft | 181 | 1982 |
| Emerson Burrier Ro over Talbot Branch | Good | 24.9 ft | 175 | 1982 |
| Spruce Run Road over Spruce Run | Good | 26.9 ft | 166 | 1984 |
| Lenhart Road over Fishing Creek | Good | 60.0 ft | 166 | 1906 |
| Wilhide Road over Little Hunting Creek | Good | 36.1 ft | 153 | 1982 |
| Old Bohn Road over Woodville Branch | Good | 32.2 ft | 150 | 1982 |
| Cash Smith Road over Israel Creek | Good | 38.1 ft | 149 | 1982 |
| Molasses Road over Beaver Dam Creek | Good | 22.0 ft | 141 | 1982 |
| Bentzel Road over Branch Of Friends Creek | Good | 20.0 ft | 126 | 1980 |
| Hollow Road over Little Catoctin Creek | Good | 28.9 ft | 126 | 1981 |
| New Design Road over Tuscarora Creek | Good | 23.0 ft | 125 | 1982 |
| Forest School Road over Middle Creek | Good | 27.9 ft | 125 | 1982 |
| Arlington Mill RD over Town Branch | Good | 21.0 ft | 125 | 1997 |
| Angleberger Road over Sandy Run | Good | 27.9 ft | 122 | 1982 |
| Roy Shafer Road over Cone Branch | Good | 64.0 ft | 105 | 1982 |
| Lander Road over Lander Branch | Good | 25.9 ft | 74 | 1982 |
| Bridgeport Road over Cattail Branch | Good | 26.9 ft | 73 | 1978 |
| Bollinger Road over Stony Branch | Good | 27.9 ft | 72 | 1982 |
| Pearre Road over Clemson Branch | Good | 25.9 ft | 62 | 1982 |
| Sixes Road over Toms Creek | Good | 89.9 ft | 60 | 2006 |
| Hoovers Mill Road over Owens Creek | Good | 68.9 ft | 59 | 1887 |
| Raven Rock Park RD over Owens Creek | Good | 29.9 ft | 57 | 1981 |
| Lenhart Road over Fishing Creek | Good | 37.1 ft | 56 | 1982 |
| Beaver Dam Road over Beaver Dam Creek | Good | 25.9 ft | 53 | 1982 |
| Wye Creek Drive over Tributary Of Renn | Good | 32.5 ft | 50 | 1960 |
| Brentland Road over Little Catoctin Creek | Good | 26.9 ft | 44 | 1982 |
| Covell Road over Little Bennett Creek | Good | 65.9 ft | 36 | 1930 |
| Bolivar Court over Bolivar Branch | Good | 34.1 ft | 35 | 1994 |
| Hayes Road over Middle Creek | Good | 24.9 ft | 27 | 1981 |
| Parking Lot Road over Blue Blazes Creek | Good | 34.1 ft | 20 | 2019 |
| Flag Pond Road over Doubs Branch | Good | 33.1 ft | 12 | 1986 |