| ST 3 over HWY Union ST N Rotary | Norfolk | 204,310 | 1957 | 144.0 ft |
| I 93 over I 95 /st128 | Middlesex | 200,824 | 1957 | 248.0 ft |
| I 95 /st128 over Rr Mbta/bmrr | Middlesex | 192,672 | 1950 | 124.0 ft |
| I 93 over ST 16 Myst Val Pky | Middlesex | 182,420 | 1960 | 325.1 ft |
| I 95 St128 over HWY Quinobequin RD | Middlesex | 142,579 | 1950 | 95.1 ft |
| US 1 Newbrprt Tpk over I 95 /st128 | Essex | 140,655 | 1963 | 268.0 ft |
| I 495 over HWY Massachusetts AVE | Essex | 124,334 | 1963 | 111.9 ft |
| I 93 over Water Merrimack River | Essex | 119,818 | 1959 | 774.9 ft |
| I 90 over Rr Csx | Middlesex | 114,872 | 1957 | 58.1 ft |
| I 93 Nb/us1sb over ST 24 NB | Norfolk | 101,100 | 1958 | 211.9 ft |
| ST 9 Boylston ST over Tr Green Line D | Middlesex | 96,206 | 1905 | 56.1 ft |
| I 495 SB over ST 28 Sb/n Main ST | Essex | 95,100 | 1962 | 116.8 ft |
| I 95 Sb/st128 SB over ST 3 A/cambridge ST | Middlesex | 93,600 | 1950 | 205.1 ft |
| I 495 SB over Comb Bmrr & Little Riv | Essex | 93,469 | 1961 | 193.9 ft |
| I 495 NB over Comb Bmrr & Little Riv | Essex | 93,469 | 1961 | 195.9 ft |
| I 95 Sb/st128 SB over HWY S Bedford ST | Middlesex | 92,706 | 1950 | 132.9 ft |
| ST 1 A/lynnway over Water Saugus River | Essex | 85,600 | 1934 | 1272.0 ft |
| ST 3 A/gorham ST over I 495 | Middlesex | 84,000 | 1962 | 268.0 ft |
| I 90 Ramps A & B over Water Charles River | Middlesex | 80,100 | 1957 | 300.5 ft |
| I 495 & Access Rps over Water Merrimack River | Essex | 79,000 | 1962 | 966.9 ft |
| HWY Morrssey Blv over Water Dorchester Bay | Suffolk | 78,900 | 1927 | 460.0 ft |
| I 495 NB over St110 Amesbury RD | Essex | 78,446 | 1964 | 139.1 ft |
| I 291 Conn B & C over HWY Dwight ST | Hampden | 78,178 | 1967 | 102.4 ft |
| I 93 Bt Sb4-n Abt over HWY Connectors D & K | Suffolk | 77,596 | 1970 | 365.8 ft |
| I 90 EB over Rr Mbta | Suffolk | 76,373 | 1965 | 2483.9 ft |
| I 90 WB over Rr Mbta | Suffolk | 74,344 | 1965 | 2485.9 ft |
| I 495 Upper Level over I 495 Lower Level | Essex | 73,359 | 1962 | 1048.9 ft |
| I 495 NB over HWY School ST | Bristol | 70,813 | 1978 | 96.1 ft |
| I 495 SB over Rr Pan Am | Middlesex | 68,981 | 1961 | 175.9 ft |
| I 495 SB over ST 38 Main ST | Middlesex | 68,981 | 1961 | 138.1 ft |
| I 495 SB over Water Merrimack River | Essex | 66,888 | 1964 | 938.3 ft |
| I 290 EB over HWY E Central ST | Worcester | 65,611 | 1958 | 160.1 ft |
| I 495 NB over Rr Pan Am | Middlesex | 64,233 | 1961 | 175.9 ft |
| I 495 SB over St110 /st113/merrimack | Essex | 63,024 | 1963 | 172.2 ft |
| I 290 WB over HWY E Central ST | Worcester | 62,637 | 1958 | 160.1 ft |
| I 495 NB & On-ramp over Rr Mbta/bmrr | Essex | 62,500 | 1962 | 139.1 ft |
| I 195 over Comb Macrr/purchase ST | Bristol | 62,062 | 1965 | 339.6 ft |
| I 195 over HWY County&state Sts | Bristol | 62,062 | 1965 | 460.0 ft |
| I 195 over ST 18 Ashley BLVD | Bristol | 62,062 | 1965 | 500.7 ft |
| I 495 NB over St133 Andover ST | Middlesex | 60,988 | 1961 | 224.1 ft |
| I 495 NB over Water Merrimack River | Essex | 60,056 | 1964 | 946.2 ft |
| I 495 SB over HWY Boston RD | Middlesex | 59,349 | 1959 | 127.0 ft |
| I 495 NB over St110 /st113/merrimack | Essex | 58,225 | 1963 | 172.6 ft |
| HWY Storrw DR WB over HWY Storrow DR EB | Suffolk | 57,770 | 1951 | 35.1 ft |
| ST 2 over Rr Bmrr | Worcester | 57,765 | 1951 | 53.1 ft |
| I 95 NB over HWY Central ST | Norfolk | 56,375 | 1963 | 138.1 ft |
| ST 2 over HWY Lake ST | Middlesex | 56,236 | 1967 | 172.9 ft |
| I 495 NB over Water Assabet River | Middlesex | 55,989 | 1963 | 85.0 ft |
| ST 1 A/lee Brbnk over St145 Revere Bch PKWY | Suffolk | 55,630 | 1934 | 135.8 ft |
| ST 2 over Water Sawmill Pond | Worcester | 55,358 | 1946 | 33.5 ft |
| HWY Bowker Int over Comb I 90 & Mbta | Suffolk | 55,075 | 1965 | 358.9 ft |
| I 495 SB over ST 28 Nb/union ST | Essex | 54,041 | 1962 | 164.0 ft |
| I 495 NB over HWY Boston RD | Middlesex | 53,253 | 1959 | 127.0 ft |
| I 495 SB over St109 Medway RD | Worcester | 51,812 | 1968 | 141.1 ft |
| I 495 SB over Rr Mbta/csx | Worcester | 51,588 | 1968 | 142.1 ft |
| ST 2 over HWY Harvard ST | Worcester | 51,467 | 1951 | 47.9 ft |
| I 90 EB over St135 Wood ST | Middlesex | 50,658 | 1957 | 128.3 ft |
| ST 24 over St140 County ST | Bristol | 50,018 | 1951 | 107.6 ft |
| I 495 NB over ST 28 Sb/n Main ST | Essex | 48,915 | 1962 | 131.9 ft |
| I 495 NB over HWY W Main ST | Middlesex | 48,152 | 1966 | 140.1 ft |
| I 495 NB over I 90 | Middlesex | 48,021 | 1965 | 214.9 ft |
| I 495 SB over Water Assabet River | Middlesex | 47,879 | 1963 | 83.0 ft |
| I 90 EB over HWY Little Alum Pd RD | Hampden | 47,303 | 1957 | 40.0 ft |
| ST 9 Bstn-wrcstr over St140 Grafton ST | Worcester | 47,107 | 1932 | 40.0 ft |
| I 495 NB over Rr Mbta/csx | Worcester | 46,713 | 1968 | 142.1 ft |
| ST 2 Concord Tpk over Water Sudbury River | Middlesex | 46,700 | 1934 | 84.0 ft |
| ST 2 over Water Wyman Brook | Worcester | 46,691 | 1947 | 39.0 ft |
| I 90 Ex 117 In 13 over I 90 | Middlesex | 45,000 | 1957 | 235.9 ft |
| US 1 Newbrprt Tpk over Water Little River | Essex | 44,612 | 1922 | 24.9 ft |
| I 195 EB over Water Palmer River | Bristol | 44,535 | 1960 | 155.8 ft |
| Ma Route 28 over Cape Cod Canal | Barnstable | 44,240 | 1935 | 2383.9 ft |
| I 495 NB over HWY Tadmuck RD | Middlesex | 43,917 | 1961 | 125.3 ft |
| ST 3 NB over Water North River | Plymouth | 43,207 | 1961 | 195.9 ft |
| I 90 EB over ST 12 Southbridge ST | Worcester | 42,886 | 1957 | 315.0 ft |
| I 495 SB over HWY Berlin RD | Middlesex | 42,765 | 1963 | 145.7 ft |
| HWY Roosevelt Av over I 291 /us20 | Hampden | 42,672 | 1969 | 210.6 ft |
| I 95 SB over Other Mbta - Bike Trail | Essex | 42,634 | 1974 | 101.7 ft |
| ST 24 over Water Assonet River | Bristol | 42,505 | 1951 | 158.1 ft |
| US 1 Nb/low Deck over HWY Chelsea Local Stre | Suffolk | 42,492 | 1950 | 2829.1 ft |
| I 90 WB over ST 12 Southbridge ST | Worcester | 41,794 | 1957 | 313.0 ft |
| I 495 SB over HWY Summer ST | Norfolk | 41,765 | 1966 | 95.5 ft |
| US 1 Sb/uppr Deck over US 1 Nb/chel Lwr Deck | Suffolk | 41,655 | 1950 | 3349.1 ft |
| ST 3 SB over I 93 | Norfolk | 41,600 | 1957 | 190.0 ft |
| HWY Blue Hill Av over Rr Mbta | Suffolk | 41,250 | 1902 | 143.0 ft |
| I 90 EB over Comb Cntrl Mlbry & Pwrr | Worcester | 41,235 | 1957 | 399.0 ft |
| ST 3 SB over Water North River | Plymouth | 40,879 | 1961 | 195.9 ft |
| I 495 NB over Rr Mbta/csx | Norfolk | 40,744 | 1966 | 42.0 ft |
| I 495 NB over HWY Middle RD | Essex | 40,300 | 1964 | 133.9 ft |
| HWY Amesbury ST over Water South Canal | Essex | 38,100 | 1918 | 69.9 ft |
| I 95 SB over ST 62 Maple ST | Essex | 38,090 | 1972 | 128.0 ft |
| I 495 SB over HWY W Main ST | Middlesex | 38,043 | 1966 | 132.9 ft |
| I 495 SB over St110 Amesbury RD | Essex | 37,519 | 1964 | 140.4 ft |
| ST 60 Pleasant ST over ST 2 | Middlesex | 36,700 | 1967 | 191.9 ft |
| I 95 NB over Other Mbta - Bike Trail | Essex | 36,615 | 1974 | 101.7 ft |
| ST 16 Rev Bch PKWY over St107 Broadway | Suffolk | 36,500 | 1931 | 79.1 ft |
| I 90 Ramp G over Other Mdc Aqueduct | Middlesex | 36,206 | 1962 | 122.0 ft |
| I 95 NB over ST 62 Maple ST | Essex | 36,201 | 1972 | 126.0 ft |
| I 391 over St116 Chicopee ST | Hampden | 35,950 | 1979 | 848.1 ft |
| HWY Armory ST over Rr Csx | Hampden | 35,000 | 1934 | 94.2 ft |
| HWY Speen ST SB over ST 9 & Ramp A | Middlesex | 34,773 | 1977 | 167.0 ft |
| I 95 SB over I 95 /us1/st128 | Norfolk | 34,655 | 1966 | 268.0 ft |
| US 1 Conn Rps A&b over I 95 /st 128 | Essex | 34,500 | 1959 | 243.1 ft |
| ST 3 Nb/plgrm HWY over HWY Franklin ST | Plymouth | 34,314 | 1962 | 109.9 ft |
| HWY ST James AVE over Rr Csx | Hampden | 34,300 | 1956 | 86.3 ft |
| US 1 SB over US 1 NB | Suffolk | 34,040 | 1994 | 710.0 ft |
| St125 Bridge ST over Water Merrimack River | Essex | 33,900 | 1925 | 804.1 ft |
| HWY Toner BLVD over I 95 | Bristol | 33,600 | 1960 | 297.9 ft |
| HWY Cambridge ST over Water Charles River | Suffolk | 33,400 | 1925 | 210.0 ft |
| St114 Andover ST over Water Ipswich River | Essex | 32,949 | 1954 | 43.6 ft |
| St213 EB over Tr Methuen Rail Trail | Essex | 32,821 | 1959 | 28.9 ft |
| St116 Chicopee ST over Rr Gwrr | Hampden | 32,500 | 1971 | 94.8 ft |
| US 5 over Water Westfield River | Hampden | 32,365 | 1953 | 584.3 ft |
| HWY Storrw DR EB over HWY Bowkr On & Off Rps | Suffolk | 32,000 | 1954 | 660.1 ft |
| ST 28 Mcgrath HWY over Rr Mbta/bmrr | Middlesex | 32,000 | 1926 | 173.9 ft |
| US 44 Harding ST over Rr Mbta/csx | Plymouth | 31,681 | 1963 | 95.1 ft |
| HWY Cambridge ST over Comb I 90 & Mbta/csx | Suffolk | 31,600 | 1964 | 474.1 ft |
| HWY Centre ST over Comb I 90 & Csx/mbta | Middlesex | 31,422 | 1964 | 168.0 ft |
| I 495 SB over HWY Amesbury Line RD | Essex | 30,681 | 1964 | 111.5 ft |
| St114 North ST over Water North River | Essex | 30,550 | 1952 | 24.0 ft |
| HWY Trmnt-arlngt over Rr Amtrak/mbta | Suffolk | 30,400 | 1979 | 74.1 ft |
| ST 37 Washngton ST over Rr Mbta/csx | Norfolk | 29,095 | 1948 | 97.1 ft |
| ST 28 Chas R Dm RD over Water Charles River | Suffolk | 28,188 | 1906 | 116.1 ft |
| US 20 Sturbrdge RD over Water Cady Brook | Worcester | 28,000 | 1957 | 43.0 ft |
| I 95 NB over I 95 /us1/st128 | Norfolk | 27,543 | 1966 | 268.0 ft |
| I 91 SB over Water Manhan Riv Oxbow | Hampshire | 27,526 | 1963 | 205.7 ft |
| HWY Cambridge ST over Comb I90 E Rps Bdl & Cs | Suffolk | 27,500 | 1965 | 339.6 ft |
| HWY W Roxbry Pky over Rr Mbta | Suffolk | 27,414 | 1921 | 37.1 ft |
| HWY Webster AVE over Rr Mbta/bmrr | Middlesex | 27,350 | 1911 | 95.5 ft |
| St125 Bridge ST over Rr Bmrr (abandoned) | Essex | 27,200 | 1850 | 32.2 ft |
| ST 2 W Main ST over Rr Parr | Berkshire | 27,000 | 1882 | 129.9 ft |
| HWY Beacon ST over Comb I 90 & Mbta/csx | Suffolk | 26,911 | 1965 | 355.0 ft |
| ST 2 A/main ST over Rr Gwrr | Franklin | 26,700 | 1847 | 24.9 ft |
| St129 Lowell ST over I 93 | Middlesex | 26,250 | 1957 | 259.8 ft |
| ST 62 Maple ST over Water Ipswich River | Essex | 26,000 | 1922 | 48.2 ft |
| HWY Arlington ST over Comb I 90 & Amtrak | Suffolk | 25,800 | 1965 | 171.9 ft |
| US 3 /st2&16/alwf over Tr Red Line | Middlesex | 25,732 | 1983 | 74.1 ft |
| St123 E Main ST over I 495 | Bristol | 25,200 | 1978 | 248.0 ft |
| HWY Jeffrson Av over HWY Parallel ST | Essex | 25,000 | 1920 | 24.9 ft |
| HWY Trapelo RD over I 95 /st128 | Middlesex | 24,727 | 1960 | 214.9 ft |
| HWY Walnut ST over Tr Green Line D | Middlesex | 24,569 | 1906 | 44.0 ft |
| ST 3 Sb/plgrm HWY over HWY Franklin ST | Plymouth | 24,431 | 1962 | 109.9 ft |
| HWY River ST over Rr Amtrak/mbta | Suffolk | 24,000 | 1883 | 82.0 ft |
| I 90 EB over ST 67 Boston RD | Hampden | 23,952 | 1957 | 214.6 ft |
| HWY Jw Mahar HWY over Water Monatiquot River | Norfolk | 23,700 | 1982 | 50.9 ft |
| I 90 WB over ST 67 Boston RD | Hampden | 23,561 | 1957 | 214.6 ft |
| ST 21 Ludlow AVE over Water Chicopee River | Hampden | 23,427 | 1930 | 435.4 ft |
| ST 2 A/marrett RD over I 95 /st128 | Middlesex | 23,310 | 1961 | 267.1 ft |
| HWY Centre ST over Rr Mbta | Suffolk | 23,147 | 1888 | 49.9 ft |
| HWY Plain ST over Water Monatiquot River | Norfolk | 22,900 | 1929 | 25.9 ft |
| US 3 NB over I 95 /st128 & Cd | Middlesex | 22,600 | 1962 | 284.1 ft |
| US 20 Eb/weston ST over I 95 /st128 | Middlesex | 22,500 | 1960 | 248.0 ft |
| HWY Meridian ST over Water Chelsea River | Suffolk | 22,435 | 1954 | 1075.1 ft |
| HWY Oxford ST over Water Kettle Brook | Worcester | 22,200 | 1880 | 105.6 ft |
| HWY Essex ST over Rr Mbta/bmrr | Essex | 21,900 | 1943 | 42.0 ft |
| HWY Speen ST NB over ST 9 Worcester ST | Middlesex | 21,600 | 1977 | 101.0 ft |
| HWY Farwell ST over Water Charles River | Middlesex | 21,600 | 1850 | 109.6 ft |
| US 20 /us7/south over Rr Hrr | Berkshire | 21,457 | 1900 | 56.8 ft |
| HWY Bridge ST over Water Bass River | Essex | 21,300 | 1929 | 269.0 ft |
| HWY ST James AVE over Rr Conrail (abandned) | Hampden | 21,207 | 1903 | 51.5 ft |
| HWY Mass AVE over Comb I 90 & Mbta/csx | Suffolk | 21,206 | 1965 | 162.1 ft |
| I 90 EB Off- Ramp over I 90 WB & Ramps F D L | Suffolk | 20,700 | 1964 | 916.0 ft |
| I 395 SB over Water Lowes Pond | Worcester | 20,576 | 1973 | 75.1 ft |
| HWY Park AVE over ST 2 | Middlesex | 20,450 | 1967 | 176.8 ft |
| HWY Walnut ST over Comb I 90 & Csx/mbta | Middlesex | 19,784 | 1964 | 148.6 ft |
| St123 E Main ST over Water Canoe River | Bristol | 19,525 | 1978 | 47.9 ft |
| HWY Squantum ST over I 93 /us1/st3 | Norfolk | 19,500 | 1954 | 149.9 ft |
| US 5 /st10/bndstn over Water Cherry Rum Brook | Franklin | 19,397 | 1964 | 22.0 ft |
| I 93 NB Offramp over ST 38 Nb/mystic AVE | Middlesex | 19,267 | 1973 | 372.0 ft |
| ST 9 Huntingtn Av over Comb I 90 & Mbta/csx | Suffolk | 19,200 | 1965 | 307.1 ft |
| ST 3 Nb/memorl DR over Water Charles River | Middlesex | 18,750 | 1956 | 512.1 ft |
| ST 28 NB over St151 Nathan Ellis HWY | Barnstable | 18,620 | 1960 | 131.9 ft |
| St117 Main ST over I 95 /st128 | Middlesex | 18,600 | 1962 | 217.8 ft |
| US 3 Memorial DR over HWY Brookline ST | Middlesex | 18,503 | 1940 | 600.1 ft |
| ST 16 Wb/wshgtn ST over Comb I 90 & Csx/mbta | Middlesex | 18,491 | 1964 | 169.9 ft |
| HWY Bwkr SB Onrp over Water Muddy River | Suffolk | 18,470 | 1965 | 224.7 ft |
| ST 28 Mcgrath HWY over Comb Som AVE Ext & Mbta | Middlesex | 18,436 | 1958 | 399.9 ft |
| St122 Grafton ST over US 20 SW Cut Off | Worcester | 18,356 | 1931 | 87.9 ft |
| HWY Union ST over Water North Canal | Essex | 18,300 | 1860 | 76.1 ft |
| HWY Bridge ST over Water Eastern Canal | Middlesex | 18,230 | 1937 | 51.8 ft |
| HWY Dalton ST over Comb I 90&cambria&csx | Suffolk | 17,844 | 1850 | 204.1 ft |
| HWY Chace RD over St140 | Bristol | 17,200 | 1957 | 244.1 ft |
| HWY NB Lowll Con over I 495 | Middlesex | 17,180 | 1959 | 215.2 ft |
| HWY Congress ST over Water Fort Point Channel | Suffolk | 17,100 | 1850 | 546.9 ft |
| HWY South ST E over Water Taunton River | Bristol | 17,068 | 1945 | 95.1 ft |
| HWY Pleasant ST over ST 24 | Plymouth | 16,900 | 1954 | 125.0 ft |
| I 90 EB Ramps Off over Rr Mbta/csx | Suffolk | 16,878 | 1965 | 204.1 ft |
| St117 Main ST over Water Still River | Worcester | 16,803 | 1937 | 104.0 ft |
| ST 2 A/water ST over Comb Boulder DR & Bmrr | Worcester | 16,708 | 1900 | 198.2 ft |
| HWY Elm ST over Water E Br Housatonic R | Berkshire | 16,642 | 1911 | 60.0 ft |
| ST 57 WB over St159 Main ST | Hampden | 16,427 | 2002 | 168.0 ft |
| HWY County RD over US 1 NE Xway | Suffolk | 16,422 | 1955 | 134.8 ft |
| ST 2 A/lnenbrg ST over Water Baker Brook | Worcester | 16,255 | 1954 | 37.1 ft |
| HWY Canterbry ST over Rr Amtrak/mbta | Suffolk | 16,034 | 1985 | 70.9 ft |
| ST 9 East Main ST over Water Ware River | Hampshire | 15,517 | 1870 | 130.9 ft |
| HWY Embkt WB On over HWY Embankment RD EB | Suffolk | 15,500 | 1951 | 154.9 ft |
| ST 28 Main ST over Water Bass River | Barnstable | 15,407 | 1935 | 627.0 ft |
| HWY First ST over Water Broad Canal | Middlesex | 15,388 | 1924 | 120.1 ft |
| HWY Boston ST over Tr Amtrak & Red Line | Suffolk | 15,300 | 1977 | 78.1 ft |
| ST 2 State RD over Water Hoosic River | Berkshire | 15,200 | 1934 | 181.1 ft |
| HWY Lynn Flls Rp over US 1 Broadway | Essex | 14,800 | 1970 | 159.1 ft |