| Is 81 SB over CSX Trans. | 1964 | 93,204 | Fair |
| Is 70 EB over Beaver Creek | 1968 | 72,140 | Fair |
| Is 70 WB over Beaver Creek | 1966 | 72,140 | Fair |
| Is 70 EB over Crystal Falls Drive | 2024 | 70,975 | Good |
| Is 81 over Trib to Semple Run | 1965 | 68,040 | Fair |
| Is 81 NB over Maugansville Road | 1958 | 63,000 | Fair |
| Is 81 NB over Norfolk Southern RR | 1958 | 63,000 | Fair |
| Is 81 SB over Maugansville Road | 1958 | 63,000 | Fair |
| Is 81 SB over Norfolk Southern RR | 1958 | 63,000 | Fair |
| Is 70 EB over Antietam Creek | 1968 | 62,740 | Fair |
| Is 70 EB over US 40 Alt | 1965 | 62,740 | Fair |
| Is 70 WB over Antietam Creek | 1968 | 62,740 | Fair |
| Is 70 WB over US 40 Alt | 1965 | 62,740 | Fair |
| Is 70 EB over Is 81 | 1964 | 62,680 | Fair |
| Is 70 EB over Md 632 | 1966 | 62,680 | Poor |
| Is 70 EB over US 11 | 1965 | 62,680 | Poor |
| Is 70 WB over Is 81 | 1964 | 62,680 | Fair |
| Is 70 WB over Md 632 | 1966 | 62,680 | Poor |
| Is 70 WB over US 11 | 1965 | 62,680 | Poor |
| Is 81 over Br of Conococheague Cree | 1965 | 61,350 | Fair |
| Is 81 NB over Md 63/68 | 1965 | 61,300 | Good |
| Is 81 NB over Potomac River | 1965 | 61,300 | Good |
| Is 81 SB over Md 63/68 | 1965 | 61,300 | Good |
| Is 81 SB over Potomac River | 1965 | 61,300 | Good |
| Is 70 EB over Whitehall Rd | 1967 | 61,140 | Fair |
| Is 70 WB over Whitehall Rd | 1967 | 61,140 | Fair |
| Is 70 over Landis Spring Branch | 1966 | 61,140 | Fair |
| Is 70 EB over CSX Trans. | 1968 | 60,800 | Fair |
| Is 70 EB over Md 65 | 2023 | 60,800 | Good |
| Is 70 WB over CSX Trans. | 1968 | 60,800 | Good |
| Is 70 WB over Md 65 | 2023 | 60,800 | Good |
| Is 70 EB over Black Rock Rd | 2009 | 58,600 | Good |
| Is 70 EB over Md 66 | 1968 | 58,600 | Fair |
| Is 70 WB over Black Rock Rd | 2009 | 58,600 | Good |
| Is 70 WB over Crystal Falls Drive | 1968 | 58,600 | Fair |
| Is 70 WB over Md 66 | 1966 | 58,600 | Fair |
| Is 70 over Blackrock Creek | 1968 | 58,600 | Good |
| Is 70 EB over Hopewell Rd | 1964 | 53,350 | Fair |
| Is 70 WB over Hopewell Rd | 1964 | 53,350 | Fair |
| Is 81 NB over Maugans Ave | 1958 | 52,330 | Good |
| Is 81 SB over Maugans Ave | 1958 | 52,330 | Fair |
| Is 70 EB over Md 63 | 2014 | 47,400 | Good |
| Is 70 WB over Md 63 | 2014 | 47,400 | Good |
| Is 81 NB over Showalter Road | 1958 | 47,030 | Fair |
| Is 81 SB over Showalter Road | 1958 | 47,030 | Fair |
| Is 70 over Br of Conococheague Cree | 1966 | 45,040 | Fair |
| Is 70 over Semple Run | 1966 | 45,040 | Good |
| Is 70 WB over Gr Tonoloway Ck Co Rds | 1965 | 42,052 | Fair |
| Is 70 EB over Conococheague Creek | 1966 | 41,757 | Fair |
| Is 70 EB over Ashton Rd | 1965 | 40,770 | Fair |
| Is 70 EB over Little Conococheague Cre | 1965 | 40,770 | Good |
| Is 70 EB over Meadow Brook Creek | 1967 | 40,770 | Good |
| Is 70 EB over St Paul Rd | 1965 | 40,770 | Fair |
| Is 70 WB over Ashton Rd | 1965 | 40,770 | Fair |
| Is 70 WB over Little Conococheague Cre | 1965 | 40,770 | Fair |
| Is 70 WB over Meadow Brook Creek | 1967 | 40,770 | Fair |
| Is 70 WB over St Paul Rd | 1965 | 40,770 | Fair |
| Is 70 WB over Ramp D2 to Md 615 | 1960 | 38,542 | Fair |
| Is 70 EB over Norfolk Southern RR | 1965 | 38,145 | Fair |
| Is 70 WB over Conococheague Creek | 1966 | 37,899 | Good |
| Is 70 EB over Pennsylvania Ave | 1965 | 37,440 | Good |
| Is 70 WB over Pennsylvania Ave | 1965 | 37,440 | Good |
| Is 70 Ramp A over Beaver Creek | 1968 | 37,200 | Poor |
| Is 81 NB over CSX Trans. | 1964 | 37,141 | Fair |
| US 40 over Hamilton Run | 1941 | 35,842 | Fair |
| Is 70 WB over Norfolk Southern RR | 1965 | 34,890 | Fair |
| Is 70 WB over Norfolk Southern Railroa | 1968 | 34,890 | Fair |
| Is 70 EB over Ramp E2 From Md 615 | 1960 | 34,830 | Fair |
| Is 70 WB over Ramp E2 From Md 615 | 1960 | 34,830 | Fair |
| Is 70 EB over Norfolk & Southern RR | 1968 | 33,892 | Fair |
| Is70/us40 Rp A over Is 70 Ebr & Ramp B | 1989 | 26,700 | Good |
| Is 70 WB over Licking Creek Co Road | 1965 | 24,875 | Fair |
| Is 70 WB over CSX Trans. | 1965 | 24,316 | Fair |
| US 340 over Israel Crk Appala. Trl. | 1963 | 23,943 | Fair |
| Is 70 EB over Licking Creek Co Road | 1965 | 23,201 | Fair |
| Is 70 EB over CSX Trans. | 1965 | 22,822 | Fair |
| Halfway Boulevard over Norfolk Southern Railroa | 1967 | 21,909 | Poor |
| US 40 WB over Antietam Creek | 1936 | 21,558 | Fair |
| US 340 over Potomac River CSX Trans | 1946 | 20,830 | Fair |
| US 40 over Antietam Creek | 1966 | 20,819 | Fair |
| Is 68 EB over Md 903 | 1984 | 19,950 | Good |
| Is 68 EB over Rice Road | 1985 | 19,950 | Fair |
| Is 68 EB over Sideling Hill Creek | 1982 | 19,950 | Fair |
| Is 68 WB over Md 903 | 1984 | 19,950 | Good |
| Is 68 WB over Rice Road | 1985 | 19,950 | Good |
| Is 68 WB over Sideling Hill Creek | 1982 | 19,950 | Good |
| Is 68 over Bear Creek | 1982 | 19,950 | Fair |
| Is 68 WB over Is 70 Ebr Is 68 Ramp D | 1965 | 19,780 | Fair |
| Is 70 EB over Gr Tonoloway Ck Co Rds | 1965 | 19,611 | Fair |
| Is 70 EB over Is 70 Ramp A | 1965 | 19,400 | Good |
| Is 68 EB over Creek Rd | 1965 | 19,000 | Fair |
| Is 68 WB over Creek Rd | 1965 | 19,000 | Fair |
| Is 68 over Little Tonoloway Creek | 1965 | 19,000 | Good |
| Is 70 EB over Is 68 Ramp D | 1965 | 19,000 | Fair |
| Halfway Boulevard over Csxt Railroad | 1965 | 18,183 | Fair |
| Wilson Boulevard over Pine Street | 1983 | 16,448 | Good |
| Halfway Boulevard over Underpass Way-valley Mal | 1971 | 16,373 | Fair |
| North Burhans Blvd over Norfolk Southern Railroa | 1960 | 16,086 | Fair |
| US 40 EB over I-70 | 1968 | 15,958 | Fair |
| US 40 WB over I-70 | 1968 | 15,933 | Fair |
| Md 58 over Is 81 | 1958 | 14,431 | Fair |
| US 11 over Is 81 | 1965 | 14,341 | Fair |
| Virginia Avenue over Norfolk Southern Railroa | 1983 | 14,139 | Fair |
| Halfway Blvd over Is 81 | 2001 | 13,020 | Good |
| US 40 EB over Is 81 | 1958 | 12,846 | Fair |
| US 40 WB over Is 81 | 1958 | 12,846 | Fair |
| Maryland 63 over CSX Trans. | 1959 | 12,600 | Good |
| East Oak Ridge Dri over Antietam Creek | 1833 | 12,292 | Good |
| Md 60 over Marsh Run | 1900 | 12,172 | Fair |
| Md 632 over Norfolk & Western RR | 1976 | 12,081 | Fair |
| Md 64 over Antietam Creek | 1933 | 12,022 | Fair |
| US 40 over Conococheague Creek | 1936 | 11,832 | Fair |
| Burhans Boulevard over Norfolk Southern Railroa | 1962 | 11,223 | Fair |
| Burhans Boulevard over Norfolk Southern Railroa | 1962 | 11,223 | Fair |
| US 522 over Md 144/WEST Main Street | 1937 | 10,911 | Fair |
| US 40 over Beaver Creek | 1936 | 10,742 | Fair |
| US 40 over Landis Spring Branch | 1936 | 10,742 | Fair |
| US 522 over Potomac Riv CSX Trans. | 1937 | 10,550 | Poor |
| Md 60 over Antietam Creek | 1941 | 9,902 | Fair |
| Wilson Boulevard over Norfolk Southern Railroa | 1983 | 9,800 | Fair |
| Md 63 over Br of Conococheague Cree | 1959 | 9,581 | Fair |
| Md 63 over Br of Conococheague Cree | 1959 | 9,581 | Fair |
| Jefferson Boulevar over Hamilton Run | 1929 | 9,505 | Fair |
| Md 64 over Beaver Creek | 1957 | 8,922 | Fair |
| Md 66 over Beaver Creek | 1932 | 8,291 | Fair |
| US 522 over Is 70 Ebr Ramp A | 1965 | 8,230 | Fair |
| Md 144WB over Tonoloway Creek | 1940 | 8,201 | Fair |
| Is 70 Ramp B over Beaver Creek | 1968 | 7,850 | Good |
| Hopewell Road over Tributary of Semple Run | 1964 | 7,648 | Good |
| Governor Lane Boul over Tributary of Conococheag | 1972 | 7,589 | Good |
| US 40 over Is 70 | 1968 | 7,477 | Fair |
| Eastern Boulevard over Hamilton Run | 1995 | 7,080 | Good |
| Md 68 over Winchester & Western RR | 1965 | 7,000 | Fair |
| Is 70 EB Cd over Is 81 | 1964 | 6,988 | Fair |
| Is 70 WB Cd over Is 81 | 1964 | 6,988 | Good |
| Md 34 over Trib to Lit Antietam Crk | 1957 | 6,981 | Fair |
| US 11 over Potomac River CSX Trans | 1909 | 6,761 | Fair |
| Md 64 over CSX Transportation | 2000 | 6,732 | Fair |
| Md 64 over Little Antietam Creek | 1958 | 6,732 | Fair |
| Md 64 over Little Antietam Creek | 1958 | 6,732 | Fair |
| US 40 Alt over Antietam Creek | 1823 | 6,082 | Fair |
| US 40 Alt over Beaver Creek | 1931 | 6,082 | Fair |
| US 40 Alt over Landis Spring Branch | 1900 | 6,082 | Fair |
| US 40 Alt over Little Beaver Creek | 1949 | 6,082 | Fair |
| US 40 over Little Beaver Creek | 1936 | 5,972 | Fair |
| Md 34 over Potomac Riv & C&o Canal | 2005 | 5,900 | Fair |
| Md 418 over Trib to Red Run | 1958 | 5,880 | Fair |
| Governor Lane Boul over Tributary of Semple Run | 1969 | 5,806 | Good |
| Md 632 over St James Run | 1966 | 5,601 | Fair |
| Md 67 over Dog Creek | 1959 | 5,422 | Fair |
| Md 67 over Little Antietam Creek | 1959 | 5,422 | Fair |
| Md 66 over Blackrock Creek | 1968 | 5,291 | Fair |
| Md 67 over Abandoned RR Israel Cre | 1969 | 5,202 | Fair |
| Md 67 over US 340 | 1969 | 5,202 | Good |
| Md 68 over St James Run | 2014 | 5,200 | Good |
| Mount Aetna Road over Antietam Creek | 1980 | 5,120 | Fair |
| Md 66 over Beaver Creek | 1900 | 4,961 | Fair |
| Md 34 over Antietam Creek | 1958 | 4,951 | Fair |
| Md 34 over Br of Little Antietam Ck | 1956 | 4,951 | Good |
| Md 34 over Little Antietam Creek | 1958 | 4,951 | Fair |
| Md 68 over Conococheague Creek | 1829 | 4,532 | Fair |
| Md 144WA over Is 81 | 1963 | 4,502 | Fair |
| Rodman Avenue over Sherricks Run | 1965 | 4,300 | Fair |
| Halfway Boulevard over Tributary of Conococheag | 2005 | 4,256 | Good |
| Md 144WB over Little Tonoloway Creek | 1925 | 4,051 | Fair |
| US 40 over Little Conococheague Cre | 1900 | 3,912 | Fair |
| South Pointe Drive over Tributary of Antietam CR | 2000 | 3,885 | Good |
| South Pointe Drive over Tributary of Antietam CR | 1993 | 3,828 | Fair |
| Is 81 Ramp 8 over Br of Conococheague Cree | 1965 | 3,561 | Good |
| Leitersburg-smiths over Little Antietam Creek | 1981 | 2,760 | Good |
| Prospect Street over Antietam Street | 1836 | 2,730 | Fair |
| Md 68 over Antietam Creek | 1833 | 2,592 | Fair |
| Md 68 over Beaver Creek | 1824 | 2,592 | Fair |
| Security Road over Hamilton Run | 1957 | 2,518 | Fair |
| Md 68 over Little Conococheague Cre | 1974 | 2,482 | Fair |
| Hopewell Road over Br of Conococheague Cree | 1965 | 2,454 | Good |
| Bartow Drive over Tributary to Conococheag | 2000 | 2,418 | Good |
| Bower Avenue over Is 70 | 1968 | 2,314 | Fair |
| Md 68 over Is 70 | 1965 | 2,290 | Fair |
| Md 491 over Little Antietam Creek | 1961 | 2,130 | Fair |
| Md 62 over Little Antietam Creek | 1931 | 2,080 | Fair |
| Sandy Hook Road over Csxt Railroad | 1925 | 1,727 | Fair |
| Garis Shop Road over Antietam Creek | 1839 | 1,698 | Good |
| Poffenberger Road over Antietam Creek | 1841 | 1,698 | Good |
| Poffenberger Road over Antietam Creek | 1840 | 1,698 | Good |
| Mt Aetna Road over Beaver Creek | 1993 | 1,654 | Good |
| Md 550 over Trib to Lake Royer | 1945 | 1,630 | Fair |
| Dogstreet Road over Little Antietam Creek | 1850 | 1,560 | Fair |
| Md 494 over Conococheague Creek | 1932 | 1,539 | Fair |
| Wolfsville Road over Beaver Creek | 1915 | 1,500 | Fair |
| Leiters Mill Road over Antietam Creek | 1839 | 1,470 | Good |
| Millbrook Road over Little Antietam Creek | 1965 | 1,467 | Fair |
| US 40 over Licking Creek | 1938 | 1,455 | Fair |
| Dogstreet Road over Dog Creek | 1940 | 1,408 | Poor |
| Boyd Road over Is 70 Ebr | 1965 | 1,392 | Fair |
| Boyd Road over Is 70 Wbr | 1965 | 1,392 | Fair |
| Cedar Ridge Road over Is 70 EB | 1967 | 1,344 | Fair |
| Cedar Ridge Road over Is 70 WB | 1967 | 1,344 | Fair |
| Md 56 over Is 70 | 1964 | 1,325 | Good |
| Big Spring Road over Is 70 | 1965 | 1,248 | Fair |
| Old Forge Road over Marsh Run | 1998 | 1,214 | Good |
| Kemps Mill Road over Conococheague Creek | 1976 | 1,187 | Fair |
| US 40 EB over Is 70 Wbr | 1965 | 1,182 | Fair |
| Keedysville Road over Antietam Creek | 1830 | 1,173 | Fair |
| Keedysville Road over Little Antietam Creek | 1858 | 1,173 | Fair |
| Millbrook Road over Little Antietam Creek | 1920 | 1,173 | Fair |
| Plantation Drive over Tributary of Antietam CR | 1996 | 1,136 | Fair |
| Boyd Road over Camp Spring Run | 1950 | 1,116 | Fair |
| Bikle Road over Little Antietam Creek | 1998 | 1,091 | Good |
| Hickory School Roa over Semple Run | 1996 | 1,077 | Fair |
| College Road over Saint James Run | 1950 | 1,006 | Fair |
| Beaver Creek Rd over I-70 | 1965 | 999 | Fair |
| Cearfoss Pike over Conococheague Creek | 1977 | 999 | Fair |
| Sandy Mile Rd over Is 68 | 1965 | 999 | Fair |
| Md 144WB over Is 68 | 1987 | 972 | Fair |
| Md 144WB over Little Tonoloway Creek | 1965 | 972 | Good |
| Mills Road over Sharmans Branch | 2009 | 965 | Good |
| Rowe Road over Little Antietam Creek | 1974 | 934 | Fair |
| Hopewell Road over Semple Run | 1966 | 933 | Fair |
| Cedar Ridge Road over Meadow Brook | 1935 | 900 | Fair |
| Dogstreet Road over Dog Creek | 1900 | 874 | Fair |
| Broadfording Road over Little Conococheague Crk | 1972 | 868 | Fair |
| King Road over Tributary of Little Anti | 1992 | 844 | Fair |
| Tollgate Ridge Rd over Tonoloway Creek | 1916 | 828 | Good |
| Greensburg Road over Little Antietam Creek | 1974 | 811 | Fair |
| Rock Hill Road over Unnamed Stream | 1920 | 778 | Fair |
| Roxbury Road over Antietam Creek | 1824 | 778 | Fair |
| Earth Care Road over Conococheague Creek | 2000 | 721 | Good |
| Harpers Ferry Road over Antietam Creek | 1832 | 720 | Fair |
| Ashton Road over Little Conococheague Cre | 1960 | 704 | Fair |
| Yarrowsburg Road over Israel Creek | 1940 | 687 | Poor |
| Md 56 over Little Conococheague Cre | 1907 | 681 | Fair |
| Crystal Falls Driv over Beaver Creek | 1890 | 678 | Fair |
| Md 63 over St James Run | 2017 | 650 | Good |
| Md 844 over Beaver Creek | 1900 | 599 | Fair |
| Garretts Mill Road over Israel Creek | 2019 | 590 | Good |
| Old Forge Road over Antietam Creek | 1863 | 580 | Good |
| Walnut Point Rd over Is 70 | 1965 | 566 | Fair |
| Roxbury Road over Beaver Creek | 1920 | 533 | Poor |
| Taylors Landing Ac over C&o Canal | 1969 | 530 | Poor |
| Woodmont Road over Little Tonoloway Creek | 1918 | 507 | Fair |
| Md 56 over Toms Run | 2023 | 500 | Good |
| Unger Road over Grove Creek | 1908 | 498 | Fair |
| Md 845A over Little Antietam Creek | 1927 | 490 | Fair |
| Pectonville Road over Licking Creek | 1982 | 475 | Fair |
| Burnside Bridge Ro over Antietam Creek | 1965 | 461 | Fair |
| Dam No. 5 Road over Little Conococheague Cre | 1993 | 430 | Fair |
| Landis Road over Trib. of Landis Spring | 2001 | 423 | Good |
| Barnes Road over Beaver Creek | 1906 | 399 | Fair |
| Sprecher Road over Marsh Run | 1986 | 380 | Good |
| Manor Church Road over Antietam Creek | 1982 | 365 | Fair |
| Coffman Farms Rd over Little Antietam Creek | 1832 | 362 | Good |
| Sprecher Road over Marsh Run | 1920 | 347 | Good |
| Hanging Rock Road over Lanes Run | 1984 | 340 | Fair |
| Gossard Mill Road over Rockdale Run | 1977 | 330 | Fair |
| Brownsville Road over Israel Creek | 1904 | 325 | Fair |
| Gardenhour Rd over Little Antietam Creek | 1910 | 315 | Fair |
| Burnside Bridge Rd over Sharmans Branch | 1978 | 310 | Fair |
| Indian Springs Rd over Lanes Run | 1940 | 295 | Good |
| Nicodemus Mill Rd over Dog Creek | 1996 | 294 | Good |
| Broadfording Road over Conococheague Creek | 1829 | 265 | Good |
| Amos Reeder Road over Dog Creek | 1958 | 238 | Fair |
| Poplar Grove Road over Little Antietam Creek | 1910 | 233 | Fair |
| Clopper Road over Antietam Creek | 2005 | 229 | Good |
| Marble Quarry Road over Little Antietam Creek | 2007 | 223 | Good |
| Dam #4 Road over C&o Canal | 1971 | 212 | Good |
| Snyders Landing Ac over C&o Canal | 1969 | 212 | Poor |
| Monroe Road over Tributary of Little Anti | 1996 | 203 | Good |
| Ernstsville Rd over Is 70 | 1964 | 200 | Fair |
| River Park Road over C&o Canal | 1879 | 200 | Fair |
| Unger Road over Grove Creek | 1830 | 194 | Fair |
| Millers Church Rd over Antietam Creek | 1984 | 193 | Good |
| Toms Road over Beaver Creek | 1985 | 192 | Fair |
| McFARLAND ROAD over Bear Creek | 1916 | 183 | Fair |
| Marble Quarry Road over Little Antietam Creek | 1985 | 178 | Fair |
| Marble Quarry Road over Little Antietam Creek | 1920 | 178 | Good |
| Appletown Road over Tributary of Dog Creek | 1920 | 172 | Poor |
| Beaver Creek Churc over Beaver Creek | 1930 | 168 | Fair |
| Gapland Road over Israel Creek | 1922 | 160 | Fair |
| Dargan Bend Access over C&o Canal | 2024 | 159 | Good |
| High Germany Road over Sideling Hill Creek | 1961 | 153 | Fair |
| Hogmaw Road over Little Antietam Creek | 1988 | 153 | Fair |
| Mcdade Rd over US 40 | 1960 | 150 | Good |
| Service Road over Beaver Creek | 1968 | 150 | Fair |
| Kretsinger Road over Little Antietam Creek | 1987 | 131 | Fair |
| Battletown Road over Antietam Creek | 1985 | 126 | Good |
| Park Road 2 over Little Tonoloway Creek | 1950 | 123 | Fair |
| Benevola Newcomer over Beaver Creek | 1993 | 109 | Fair |
| Frog Eye Road over Israel Creek | 2021 | 100 | Good |
| Warner Hollow Road over Tributary of Edgemont Re | 1985 | 96 | Good |
| Prophet Acres Road over Tributary of Marsh Run | 2005 | 84 | Fair |
| Little Tonoloway A over C&o Canal | 1969 | 72 | Good |
| Pearre Road over Sideling Hill Creek | 1890 | 66 | Fair |
| North Hawbaker Cir over Toms Run | 1977 | 56 | Good |
| South Hawbaker Cir over Toms Run | 1977 | 56 | Fair |
| Kirk Woods Park Ro over Little Tonoloway Creek | 2008 | 53 | Good |
| Fort Frederick Acc over C&o Canal | 1973 | 50 | Fair |
| Licking Creek Road over Lanes Run | 1960 | 40 | Fair |
| Unnamed Road over Little Conococheague Cre | 2002 | 10 | Good |
| Unnamed Road over Rattle Run | 1997 | 10 | Good |