| Md 5 SB over Zekiah Swamp | 1931 | 41,209 | Fair |
| Md 228 EB over Mattawoman Creek | 1995 | 39,800 | Good |
| Md 228 WB over Mattawoman Creek | 1995 | 39,800 | Good |
| Md 228 over Piney Branch | 1957 | 39,800 | Fair |
| Md 5 Nbr over Trib to Jordan Swamp | 1964 | 38,312 | Good |
| Md 5 NB over Zekiah Swamp | 1966 | 37,490 | Fair |
| Md 5 NB over Zekiah Swamp | 1966 | 37,490 | Fair |
| Md 5 SB over Zekiah Swamp | 1932 | 37,490 | Fair |
| Md 5 over Trib to Jordan Swamp | 1988 | 32,802 | Good |
| U.S. Route 301 over Potomac River | 2022 | 18,550 | Good |
| Md 5 Nbr over Md 231 | 2006 | 17,551 | Good |
| Md 5 Sbr over Md 231 | 2006 | 17,551 | Good |
| Billingsley Road over Unnamed Tributary | 2006 | 17,493 | Good |
| Billingsley Road over Trib to Kerrick Creek | 1998 | 17,283 | Fair |
| Smallwood Drive EB over CSX Transportation | 1966 | 13,201 | Fair |
| Smallwood Drive WB over CSX Transportation | 1966 | 13,201 | Fair |
| Md 6 over Zekiah Swamp | 1929 | 12,432 | Fair |
| Md 6 over Zekiah Swamp | 1929 | 12,432 | Fair |
| Md 225 over Br of Mattawoman Creek | 1929 | 12,302 | Fair |
| Md 225 over Br of Port Tobacco Creek | 1949 | 12,302 | Good |
| Md 225 over Mattawoman Creek | 1957 | 12,302 | Fair |
| Md 225 over Port Tobacco Creek | 1929 | 12,302 | Fair |
| Md 225 over Br of Port Tobacco Creek | 1950 | 12,100 | Fair |
| Acton Lane over Mattawoman Creek | 2001 | 9,665 | Good |
| Md 6 over Br of Port Tobacco Creek | 1955 | 9,552 | Good |
| Md 6 over Zekiah Swamp | 1933 | 9,300 | Fair |
| Md 225 over Br of Mattawoman Creek | 1951 | 8,750 | Poor |
| Md 234 over Allens Fresh Run | 1933 | 8,201 | Fair |
| Billingsley Road over Mattawoman Creek | 1984 | 7,843 | Fair |
| Md 234 over Allens Fresh Run | 2014 | 7,500 | Good |
| Billingsley Rd Ebr over Piney Branch | 1994 | 7,023 | Good |
| Billingsley Rd Wbr over Piney Branch | 1994 | 7,022 | Good |
| Md 234 over Mirant Power Company | 1967 | 6,741 | Fair |
| Md 488 over Kerrick Swamp | 1931 | 6,540 | Fair |
| Md 488 over Piney Branch | 1991 | 6,540 | Good |
| Md 6 over Gilbert Swamp | 1987 | 6,492 | Good |
| Md 6 over Wheatley Run | 1987 | 6,492 | Good |
| Md 257 over CSX Trans | 1967 | 6,290 | Fair |
| Md 234 over Gilbert Swamp Run | 2018 | 6,000 | Good |
| Md 227 over Pages Swamp | 1900 | 5,771 | Fair |
| Md 227 over Mill Swamp | 1956 | 5,611 | Fair |
| Md 227 over Mill Swamp | 1956 | 5,611 | Fair |
| Md 224 over Marbury Run | 1957 | 5,502 | Good |
| Davis Road over Piney Branch | 2000 | 4,644 | Poor |
| Poplar Hill Road over Zekiah Swamp Run | 1969 | 4,644 | Poor |
| Bumpy Oak Road over Mattawoman Creek | 1978 | 4,509 | Fair |
| Md 257 over Mill Run | 1900 | 3,990 | Fair |
| Middletown Road over Unnamed Tributary | 2006 | 3,635 | Good |
| Md 229 over Old Womans Run | 1939 | 3,581 | Fair |
| Poorhouse Road over Mill Run | 1996 | 3,475 | Fair |
| Middletown Road over Piney Branch | 2007 | 3,414 | Good |
| Md 6 over Hoghole Run | 1955 | 3,302 | Good |
| Md 6 over Mill Run | 1961 | 3,302 | Fair |
| Md 6 over Port Tabacco Creek | 1988 | 3,302 | Fair |
| Md 227 over Mattawoman Creek | 1930 | 3,231 | Fair |
| Md 6 over Wards Run | 1929 | 3,204 | Fair |
| South Hampton Driv over Tributary to Mattawoman | 1998 | 3,000 | Fair |
| Md 231 over Gilbert Creek | 1930 | 2,592 | Good |
| Md 425 over Br of Hill Top Fork | 1995 | 2,400 | Good |
| Md 425 over Jane Berrys Run | 1991 | 2,400 | Good |
| Bassford Road over Swanson Creek | 2007 | 2,180 | Good |
| Md 254 over Neale Sound | 2019 | 2,141 | Good |
| Md 6 over Nanjemoy Creek | 1922 | 1,972 | Fair |
| Bel Alton Newtown over Clark Run | 1998 | 1,760 | Good |
| Bryantown Road over Mill Dam Run | 1933 | 1,497 | Poor |
| Dubois Road over Trinity Church Run | 1970 | 1,403 | Fair |
| Woodville Road over Swanson Creek | 1934 | 1,383 | Fair |
| Saint Charles Pkwy over Kerrick Swamp | 2008 | 1,269 | Good |
| Celestial Lane over Swanson Creek | 1992 | 1,228 | Poor |
| Truman Manor Lane over Swanson Creek | 1992 | 1,221 | Fair |
| Md 224 over Reeder Run | 1928 | 1,192 | Fair |
| Hamilton Road over Tributary to Mattawoman | 2012 | 1,116 | Good |
| Chapel Point Rd over Wills Branch | 1997 | 838 | Fair |
| Silent Creek Road over Wetlands | 2005 | 732 | Good |
| Trinity Church Rd over Gilbert Swamp Run | 1927 | 656 | Poor |
| Silent Creek Road over Drainage Ditch | 2009 | 610 | Fair |
| Prince Edward Dr over Unnamed Tributary | 1996 | 558 | Good |
| Mcdaniel Road over Piney Branch | 2015 | 542 | Good |
| Popes Creek Road over Popes Creek | 1997 | 500 | Good |
| Liverpool Pt Road over Beaverdam Creek | 1924 | 448 | Fair |
| Rock Lynn Circle over Pole Branch | 2010 | 365 | Good |
| Md 224 over Br of Potomac River | 2019 | 325 | Good |
| Courtney Drive over Tributary of Mattawoman | 1989 | 250 | Fair |
| Hancock Run Road over Hancock Run | 1970 | 240 | Poor |
| Baron Street over Unnamed Tributary | 2008 | 230 | Good |
| Country Lane over Tributary of Mattawoman | 1960 | 228 | Fair |
| Constitution Drive over Piney Branch | 1995 | 208 | Fair |
| Stines Store Road over Gilbert Swamp Run | 1933 | 137 | Poor |
| Cheryl Turn over Tributary to Piney Branc | 2021 | 100 | Good |
| Pine Grove Road over Neale Sound | 1997 | 100 | Good |
| Md 224 over Thorne Gut | 2018 | 71 | Good |
| Merrimack Place over Ditchley Prong | 1920 | 55 | Fair |
| Homeland Drive over Md 5 | 2006 | 50 | Good |
| Md 224 over Br of Thorne Gut | 2018 | 50 | Good |