| Nh 12 NH101 over Ashuelot River Ped Trail | 1961 | 22,780 | Fair |
| Nh 9 over Ash Swamp Brook | 2006 | 22,417 | Good |
| Nh 12 over Beaver Brook | 2019 | 17,831 | Good |
| Nh 12 over Branch River | 1994 | 17,831 | Good |
| West Street over Ashuelot River | 1952 | 16,605 | Fair |
| Nh 9 Nh 10 Nh 12 over West Street | 1967 | 16,222 | Good |
| Nh 12 over Troy Brook | 1970 | 13,156 | Fair |
| US202 NH124 over Contoocook River | 1938 | 12,068 | Fair |
| Nh 9 Nh 10 over Ashuelot River | 1978 | 12,017 | Good |
| NH101 over Otter Brook | 1933 | 11,538 | Poor |
| Nh 9 over Connecticut River | 2003 | 11,517 | Good |
| Winchester Street over Ashuelot River | 1965 | 11,181 | Fair |
| Nh 9 over Catsbane Brook | 1937 | 11,100 | Good |
| NH101 over Minnewawa Brook | 1967 | 11,056 | Good |
| Nh 9 Nh 10 over Elm Street | 1978 | 10,814 | Fair |
| Nh 12 over Maple Avenue | 1966 | 10,675 | Fair |
| Church Street over Connecticut River Necrr | 1983 | 9,354 | Good |
| Nh 12 over S Br Ashuelot River | 1962 | 8,976 | Fair |
| Nh 12 over S Br Ashuelot River | 1962 | 8,976 | Fair |
| Nh 12 over S Branch Ashuelot River | 1962 | 8,976 | Fair |
| Nh 12 over S Branch Ashuelot River | 1983 | 8,976 | Good |
| Nh 12 over S Branch Ashuelot River | 1983 | 8,976 | Fair |
| Nh 12 over S Branch Ashuelot River | 1941 | 8,976 | Good |
| Nh 12 over S Branch Ashuelot River | 1941 | 8,976 | Poor |
| Nh 10 over Mirey Brook | 1940 | 8,914 | Fair |
| Court St over Nh 9 Nh 10 | 1977 | 8,910 | Good |
| Court Street over Ashuelot River | 2010 | 8,754 | Good |
| NH119 over Connecticut River | 1920 | 8,535 | Poor |
| NH119 over Connecticut River | 1920 | 8,535 | Poor |
| NH123 over Connecticut River | 1910 | 8,425 | Fair |
| NH119 over Connecticut River Necrr | 2024 | 8,409 | Good |
| Nh 12 over Nhrr(abd) | 1960 | 8,251 | Good |
| US202 over Mountain Brook | 1939 | 8,225 | Fair |
| Nh 12 over Nhrr(abd) | 1948 | 8,130 | Fair |
| Nh 12 over Mill Pond | 1928 | 8,066 | Fair |
| Nh 12 over Nhrr(abd) | 1957 | 8,066 | Poor |
| Nh 9 over Otter Brook | 2020 | 7,539 | Good |
| US202 over Contoocook River | 1937 | 7,405 | Fair |
| US202 over Mill Tail Race | 1937 | 7,405 | Fair |
| NH101 over Minnewawa Brook | 1986 | 7,333 | Good |
| Nh 9 over Conrad Road | 1994 | 7,294 | Good |
| Nh 10 over Ashuelot River | 2014 | 7,282 | Good |
| Nh 9 over N Br Contoocook River | 1999 | 7,112 | Good |
| Nh 9 over Island Pond Outlet | 1964 | 7,040 | Fair |
| NH101 over Goldmine Road | 1967 | 6,847 | Good |
| NH101 over Mud Pond | 1966 | 6,847 | Fair |
| Nh 12 over Mill Brook | 1948 | 6,478 | Fair |
| Nh 12 over Mill Brook | 1928 | 6,478 | Fair |
| Nh 12 over Mill Brook | 1941 | 6,478 | Poor |
| Nh 12 over Mill Brook | 1941 | 6,478 | Fair |
| Nh 12 over White Bridge Brook | 1941 | 6,478 | Fair |
| NH101 over Howe Reservoir | 1980 | 6,178 | Good |
| Nh 9 over Boys Camp Road | 1994 | 6,118 | Good |
| Nh 9 over Old Nh 9 Granite Lk Out | 1994 | 6,118 | Fair |
| Nh 12 NH123 over Cold River | 1960 | 6,073 | Fair |
| Island Street over Ashuelot River | 1979 | 6,042 | Fair |
| Nh 9 Nh 10 over Nh 12 | 1978 | 5,162 | Good |
| Nh 12 over Tarbell Brook | 1958 | 4,755 | Fair |
| Roxbury Street over Beaver Brook | 1950 | 4,580 | Good |
| NH119 over Converseville Brook | 1966 | 4,372 | Fair |
| Sawyers Crossing over Ashuelot River | 1859 | 4,250 | Good |
| Marlboro Street over Beaver Brook | 1978 | 4,228 | Fair |
| NH124 over Minnewawa Brook | 1967 | 4,006 | Good |
| Nh 32 over S Branch Ashuelot River | 2002 | 3,707 | Good |
| NH119 over Ashuelot River | 1962 | 3,648 | Good |
| Maple Ave over Black Brook | 1961 | 3,502 | Poor |
| Nh 10 over Ashuelot River | 1935 | 3,308 | Fair |
| Arch Street over Black Brook | 1992 | 3,131 | Good |
| NH119 over Canal | 1953 | 3,101 | Fair |
| Nh 32 over Martin Brook | 1929 | 2,956 | Good |
| Nh 32 over Martin Brook | 1929 | 2,956 | Poor |
| NH123 over Cold River | 1919 | 2,804 | Fair |
| NH123 over Cold River | 2008 | 2,804 | Good |
| Water Street over Beaver Brook | 2001 | 2,595 | Good |
| Nh 10 over Ashuelot River | 1949 | 2,456 | Fair |
| West Street over Ash Swamp Brook | 1990 | 2,304 | Good |
| Nh 10 NH123 over Ashuelot River | 1949 | 2,274 | Fair |
| Elm Street over Ashuelot River | 1921 | 2,195 | Fair |
| Christian Hill Rd over Nhrr(abd) | 1930 | 2,191 | Poor |
| Main Street over Ashuelot River | 1832 | 2,191 | Fair |
| Nh 63 over Ashuelot River | 1940 | 1,937 | Fair |
| Nh 10 over Abbott Brook | 1964 | 1,869 | Good |
| Nutting Road over Contoocook River | 1905 | 1,804 | Good |
| NH137 over Nubanusit Brook | 1970 | 1,777 | Good |
| Nh 63 over Kilburn Brook | 1936 | 1,643 | Fair |
| Nh 32 over Martin Brook | 1970 | 1,641 | Good |
| Nh 63 over Partridge Brook | 1969 | 1,618 | Fair |
| Roxbury Road over Otter Brook | 1950 | 1,586 | Fair |
| Denman Thompson Hw over Ashuelot River | 1976 | 1,336 | Fair |
| Nh 12A NH123 over Cold River | 2009 | 1,265 | Fair |
| High Street over Nhrr(abd) | 1953 | 1,255 | Fair |
| NH123 over Bailey Brook | 1939 | 1,215 | Fair |
| Chesham Road over Minnewawa Brook | 1939 | 1,191 | Poor |
| River Road South over Partridge Brook | 1937 | 1,167 | Poor |
| Surry Rd over Ashuelot River | 1863 | 1,167 | Fair |
| NH123A over Warren Brook | 2020 | 1,161 | Good |
| Baker Street over Beaver Brook | 1978 | 1,158 | Good |
| NH123 over Warren Brook | 2008 | 1,124 | Good |
| NH123 over Warren Brook | 2012 | 1,124 | Good |
| NH123 over Warren Brook | 2006 | 1,124 | Good |
| South Road over S Br Ashuelot River | 1936 | 1,100 | Fair |
| South Village Road over Mill Brook | 2015 | 1,093 | Good |
| Nh 63 over Mill Brook | 1930 | 1,044 | Fair |
| Branch Road over Minnewawa River | 1938 | 1,019 | Fair |
| Chesham Road over Minnewawa Brook | 1953 | 1,014 | Good |
| Wellington Road over Converseville Brook | 2021 | 840 | Good |
| East Surry Road over Ashuelot River | 1940 | 829 | Fair |
| East Surry Road over Sturtevant Brook | 2012 | 829 | Good |
| Whitcomb Mills Rd over White Brook | 1940 | 826 | Poor |
| Old Richmond Road over S Branch Ashuelot River | 1999 | 823 | Good |
| Gunn Mountain Road over Ashuelot River | 1864 | 821 | Good |
| Westport Road over Ashuelot River | 1862 | 792 | Fair |
| Centre St over Otter Brook | 1981 | 664 | Fair |
| Gilmore Pond Road over Mountain Brook | 1920 | 628 | Fair |
| Coombs Bridge Rd over Ashuelot River | 1837 | 618 | Fair |
| Marlboro Road over Farrar Pond | 1933 | 609 | Fair |
| Troy Road over Shaker Brook | 1939 | 609 | Fair |
| Scotland Road over Roaring Brook | 1955 | 607 | Poor |
| Water Street over Minnewawa Brook | 1930 | 574 | Fair |
| Bowman Drive over Black Brook | 1997 | 510 | Good |
| Canada Street over Minnewawa Brook | 1955 | 510 | Good |
| Carlton Road over South Brook | 1869 | 500 | Fair |
| Old Roxbury Road over Minnewawa Brook | 1932 | 491 | Fair |
| Old Nh 9 over Granite Lake Outlet | 1932 | 490 | Fair |
| Hancock Road over Nubanusit Brook | 1925 | 489 | Fair |
| Hancock Road over Skatutakee Lake | 1960 | 489 | Good |
| Brook Street over Catsbane Brook | 1950 | 481 | Good |
| Cobble Hill Road over California Brook | 2013 | 425 | Good |
| Cross Road over Catsbane Brook | 1963 | 421 | Fair |
| North Street over Millers River | 2003 | 406 | Good |
| Goldmine Road over Stanley Brook | 1985 | 376 | Fair |
| River Road over Ox Brook | 1986 | 367 | Good |
| Wentworth Road over Great Brook | 1950 | 342 | Fair |
| Old Westport Road over Wheelock Brook | 2011 | 340 | Good |
| Mine Road over Pouchaug Brook | 1994 | 327 | Fair |
| Fitch Road over Contoocook River | 1970 | 326 | Good |
| Depot Road over Ashuelot River | 1978 | 317 | Fair |
| County Road over Great Brook | 1968 | 314 | Good |
| Mill Road over Great Brook | 2010 | 296 | Good |
| West Street over California Brook | 2005 | 266 | Good |
| Partridge Brook Rd over Partridge Brook | 1930 | 259 | Fair |
| Old Keene Road over Great Brook | 2008 | 242 | Good |
| Craig Road over Stanley Brook | 1935 | 235 | Fair |
| Whipple Hill Road over Roaring Brook | 1950 | 233 | Poor |
| Murdough Hill Road over Nh 9 | 1994 | 180 | Good |
| Terrace Street over Minnewawa Brook | 1922 | 178 | Fair |
| Hammond Hollow Rd over Ashuelot River | 1981 | 137 | Fair |
| Old Concord Road over Granite Lake Outlet | 1932 | 124 | Good |
| Old Concord Road over Granite Lake Outlet | 1932 | 124 | Good |
| Old Nh 9 over Granite Lake Outlet | 1932 | 124 | Good |
| South River Road over Great Brook | 1950 | 121 | Fair |
| River Road North over Aldrich Brook | 2014 | 117 | Good |
| South River Road over Houghton Brook | 1980 | 117 | Fair |
| Knowlton Street over Minnewawa Brook | 1943 | 110 | Fair |
| Simondsville Road over Ashuelot River | 1969 | 102 | Fair |
| Aldrich Road over Mill Brook | 1996 | 96 | Good |
| Broad Brook Road over Broad Brook | 1900 | 96 | Good |
| Charcoal Road over Charcoal Brook | 2016 | 96 | Good |
| Farr Road over Catsbane Brook | 1955 | 96 | Good |
| Fay Martin Road over Tully Brook | 2013 | 96 | Good |
| Griffin Hill Road over Warren Brook | 1920 | 96 | Good |
| Hadley Road over Contoocook River | 2003 | 96 | Good |
| Hancock Road over Nubanusit Brook | 1925 | 96 | Fair |
| Hill Road over Darby Brook | 1970 | 96 | Poor |
| Joslin Road over Merriam Brook | 2012 | 96 | Fair |
| Kings Highway over Kennedy Brook | 2021 | 96 | Good |
| Lewis Road over Ashuelot River | 1960 | 96 | Poor |
| Makinen Road over Mill Brook | 2015 | 96 | Fair |
| Mill Street over Mill Tail Race | 1936 | 96 | Fair |
| North Shore Road over Granite Lake Inlet | 1920 | 96 | Fair |
| Nutting Road over Contoocook River | 1905 | 96 | Fair |
| Old Mill Brook Rd over Mill Brook | 2005 | 96 | Good |
| Old Roxbury Road over Minnewawa Brook | 1952 | 96 | Fair |
| Old Roxbury Road over Minnewawa Brook | 1930 | 96 | Fair |
| Old Troy Road over Brook | 1940 | 96 | Fair |
| Pine Woods Road over Mirey Brook | 1920 | 96 | Fair |
| Poocham Road over Ox Brook | 1984 | 96 | Good |
| Rabbit Hollow Road over Perry Brook | 2020 | 96 | Good |
| South Road over Minnewawa Brook | 1950 | 96 | Poor |
| Tully Brook Road over Tully Brook | 2024 | 96 | Good |
| Verry Brook Road over Wheelock Brook | 2007 | 96 | Good |
| Warmac Road over Perry Brook | 2013 | 96 | Good |
| Templeton Turnpike over Priest Brook | 1984 | 87 | Poor |
| Hatt Road over Partridge Brook | 1932 | 76 | Fair |
| Hadley Road over Contoocook River | 1939 | 68 | Fair |
| Mill Road over Rice Brook | 1983 | 60 | Fair |
| Chamberlain Road over Contoocook River | 1950 | 50 | Fair |
| Rec Area Access Rd over Otter Brook | 1967 | 50 | Poor |
| Rec Area Access Rd over Otter Brook | 1967 | 50 | Poor |
| Recycle Way over Ashuelot River | 1947 | 25 | Poor |
| Surry Mt Access Rd over Spillway Channel | 1962 | 25 | Good |
| Howard Road over Ashuelot River | 1945 | 24 | Fair |
| Bessie Pierce Road over Partridge Brook | 1936 | 10 | Fair |
| Bridge Street over Connecticut River | 1930 | – | Poor |