| I 93 over I 95 /st128 | Poor | 248.0 ft | 200,824 | 1957 |
| I 95 /st128 over Rr Mbta/bmrr | Poor | 124.0 ft | 192,672 | 1950 |
| I 93 over ST 16 Myst Val Pky | Poor | 325.1 ft | 182,420 | 1960 |
| I 95 St128 over HWY Quinobequin RD | Poor | 95.1 ft | 142,579 | 1950 |
| I 90 over Rr Csx | Poor | 58.1 ft | 114,872 | 1957 |
| ST 9 Boylston ST over Tr Green Line D | Poor | 56.1 ft | 96,206 | 1905 |
| I 95 Sb/st128 SB over ST 3 A/cambridge ST | Poor | 205.1 ft | 93,600 | 1950 |
| I 95 Sb/st128 SB over HWY S Bedford ST | Poor | 132.9 ft | 92,706 | 1950 |
| ST 3 A/gorham ST over I 495 | Poor | 268.0 ft | 84,000 | 1962 |
| I 90 Ramps A & B over Water Charles River | Poor | 300.5 ft | 80,100 | 1957 |
| I 495 SB over Rr Pan Am | Poor | 175.9 ft | 68,981 | 1961 |
| I 495 SB over ST 38 Main ST | Poor | 138.1 ft | 68,981 | 1961 |
| I 495 NB over Rr Pan Am | Poor | 175.9 ft | 64,233 | 1961 |
| I 495 NB over St133 Andover ST | Poor | 224.1 ft | 60,988 | 1961 |
| I 495 SB over HWY Boston RD | Poor | 127.0 ft | 59,349 | 1959 |
| ST 2 over HWY Lake ST | Poor | 172.9 ft | 56,236 | 1967 |
| I 495 NB over Water Assabet River | Poor | 85.0 ft | 55,989 | 1963 |
| I 495 NB over HWY Boston RD | Poor | 127.0 ft | 53,253 | 1959 |
| I 90 EB over St135 Wood ST | Poor | 128.3 ft | 50,658 | 1957 |
| I 495 NB over HWY W Main ST | Poor | 140.1 ft | 48,152 | 1966 |
| I 495 NB over I 90 | Poor | 214.9 ft | 48,021 | 1965 |
| I 495 SB over Water Assabet River | Poor | 83.0 ft | 47,879 | 1963 |
| ST 2 Concord Tpk over Water Sudbury River | Poor | 84.0 ft | 46,700 | 1934 |
| I 90 Ex 117 In 13 over I 90 | Poor | 235.9 ft | 45,000 | 1957 |
| I 495 NB over HWY Tadmuck RD | Poor | 125.3 ft | 43,917 | 1961 |
| I 495 SB over HWY Berlin RD | Poor | 145.7 ft | 42,765 | 1963 |
| I 495 SB over HWY W Main ST | Poor | 132.9 ft | 38,043 | 1966 |
| ST 60 Pleasant ST over ST 2 | Poor | 191.9 ft | 36,700 | 1967 |
| I 90 Ramp G over Other Mdc Aqueduct | Poor | 122.0 ft | 36,206 | 1962 |
| HWY Speen ST SB over ST 9 & Ramp A | Poor | 167.0 ft | 34,773 | 1977 |
| ST 28 Mcgrath HWY over Rr Mbta/bmrr | Poor | 173.9 ft | 32,000 | 1926 |
| HWY Centre ST over Comb I 90 & Csx/mbta | Poor | 168.0 ft | 31,422 | 1964 |
| HWY Webster AVE over Rr Mbta/bmrr | Poor | 95.5 ft | 27,350 | 1911 |
| St129 Lowell ST over I 93 | Poor | 259.8 ft | 26,250 | 1957 |
| US 3 /st2&16/alwf over Tr Red Line | Poor | 74.1 ft | 25,732 | 1983 |
| HWY Trapelo RD over I 95 /st128 | Poor | 214.9 ft | 24,727 | 1960 |
| HWY Walnut ST over Tr Green Line D | Poor | 44.0 ft | 24,569 | 1906 |
| ST 2 A/marrett RD over I 95 /st128 | Poor | 267.1 ft | 23,310 | 1961 |
| US 3 NB over I 95 /st128 & Cd | Poor | 284.1 ft | 22,600 | 1962 |
| US 20 Eb/weston ST over I 95 /st128 | Poor | 248.0 ft | 22,500 | 1960 |
| HWY Speen ST NB over ST 9 Worcester ST | Poor | 101.0 ft | 21,600 | 1977 |
| HWY Farwell ST over Water Charles River | Poor | 109.6 ft | 21,600 | 1850 |
| HWY Park AVE over ST 2 | Poor | 176.8 ft | 20,450 | 1967 |
| HWY Walnut ST over Comb I 90 & Csx/mbta | Poor | 148.6 ft | 19,784 | 1964 |
| I 93 NB Offramp over ST 38 Nb/mystic AVE | Poor | 372.0 ft | 19,267 | 1973 |
| ST 3 Nb/memorl DR over Water Charles River | Poor | 512.1 ft | 18,750 | 1956 |
| St117 Main ST over I 95 /st128 | Poor | 217.8 ft | 18,600 | 1962 |
| US 3 Memorial DR over HWY Brookline ST | Poor | 600.1 ft | 18,503 | 1940 |
| ST 16 Wb/wshgtn ST over Comb I 90 & Csx/mbta | Poor | 169.9 ft | 18,491 | 1964 |
| ST 28 Mcgrath HWY over Comb Som AVE Ext & Mbta | Poor | 399.9 ft | 18,436 | 1958 |
| HWY Bridge ST over Water Eastern Canal | Poor | 51.8 ft | 18,230 | 1937 |
| HWY NB Lowll Con over I 495 | Poor | 215.2 ft | 17,180 | 1959 |
| HWY First ST over Water Broad Canal | Poor | 120.1 ft | 15,388 | 1924 |
| HWY Lowell AVE over Comb I 90 & Csx/mbta | Poor | 200.1 ft | 14,224 | 1964 |
| ST 3 A/gorham ST over Water River Meadow Brook | Poor | 41.0 ft | 14,012 | 1960 |
| HWY Mishawum RD over I 95 /st128 | Poor | 228.0 ft | 13,700 | 1961 |
| HWY Winthrop ST over Water Mystic River | Poor | 71.9 ft | 13,500 | 1926 |
| HWY Speen ST over Rr Mbta/csx | Poor | 107.9 ft | 13,000 | 1900 |
| HWY Land BLVD over Water Broad Canal | Poor | 174.9 ft | 12,579 | 1956 |
| ST 38 Main ST over Rr Mbta/bmrr | Poor | 97.1 ft | 12,500 | 1928 |
| St113 Main ST over Water Nashua River | Poor | 272.0 ft | 12,478 | 1937 |
| St119 /st2 A over Water Nashoba Brook | Poor | 28.9 ft | 12,463 | 1940 |
| HWY Watertown ST over ST 2 | Poor | 211.9 ft | 11,600 | 1967 |
| ST 62 Main ST over Water Assabet River | Poor | 62.0 ft | 11,163 | 1922 |
| HWY SB Lowll Con over I 495 | Poor | 215.2 ft | 11,013 | 1959 |
| HWY Boylston ST over I 495 | Poor | 285.1 ft | 10,600 | 1961 |
| I 90 Ex 111 In 12 over ST 9 Worcester RD | Poor | 169.0 ft | 10,271 | 1957 |
| St225 Bedford RD over Water Concord River | Poor | 190.0 ft | 9,750 | 1955 |
| HWY Auburn ST over Comb I 90 & Csx/mbta | Poor | 185.4 ft | 9,181 | 1964 |
| ST 28 Fellsway W over I 93 | Poor | 402.9 ft | 9,181 | 1959 |
| HWY Lwl Con B-11 over I 495 | Poor | 207.0 ft | 8,952 | 1959 |
| St119 Main ST over Water Pearl Hill Brook | Poor | 23.0 ft | 8,542 | 1907 |
| HWY Lwll Cn B-10 over HWY Lowel Con Ramp B8 | Poor | 121.1 ft | 7,860 | 1959 |
| HWY Huron AVE over Other Greenway M/u Path | Poor | 53.1 ft | 7,100 | 1985 |
| HWY Cordavlle RD over Water Sudbury River | Poor | 26.9 ft | 7,063 | 1870 |
| St126 Concord RD over Rr Mbta/bmrr | Poor | 179.1 ft | 6,853 | 1950 |
| HWY Highland ST over Comb I 90 & Csx/mbta | Poor | 170.9 ft | 6,724 | 1964 |
| HWY North ST over I 495 | Poor | 277.9 ft | 6,200 | 1961 |
| HWY Chestnut ST over Water Ipswich River | Poor | 32.2 ft | 5,200 | 1967 |
| St111 Mass AVE over I 495 | Poor | 323.2 ft | 4,604 | 1963 |
| HWY Sudbury RD over Water Assabet River | Poor | 25.9 ft | 4,400 | 1902 |
| St119 State RD over Water S Br Souhegan Riv | Poor | 26.6 ft | 4,162 | 1962 |
| HWY Westford ST over I 495 | Poor | 392.1 ft | 4,000 | 1961 |
| HWY South RD over Water Elm Brook | Poor | 22.0 ft | 3,750 | 1970 |
| HWY Hall ST over Water Western Canal | Poor | 28.9 ft | 3,500 | 1910 |
| HWY Pleasant ST over Water Sewer Canal | Poor | 20.3 ft | 2,636 | 1904 |
| HWY Trull RD over I 495 | Poor | 390.1 ft | 1,810 | 1962 |
| HWY Lincoln RD over Water Sudbury River | Poor | 113.8 ft | 1,551 | 1992 |
| HWY Boden LN over Rr Mbta/csx | Poor | 66.9 ft | 1,300 | 1891 |
| HWY Box Mill RD over Water Elizabeth Brook | Poor | 46.9 ft | 10 | 1900 |
| HWY Suffolk ST over Water Northern Canal | Poor | 105.0 ft | 0 | 1848 |
| I 93 over ST 60 Eb/salem ST | Fair | 160.1 ft | 266,500 | 1961 |
| I 93 over ST 60 Wb/salem ST | Fair | 160.1 ft | 266,500 | 1961 |
| I 93 over Water Mystic River | Fair | 257.9 ft | 250,350 | 1963 |
| I 93 over HWY Valley ST & Fllswy | Fair | 134.8 ft | 210,316 | 1961 |
| I 93 over HWY Montvale AVE | Fair | 180.1 ft | 208,231 | 1958 |
| I 95 /st128 over HWY Lincoln ST | Fair | 137.1 ft | 196,500 | 1950 |
| I 93 over HWY Webster ST | Fair | 133.9 ft | 194,827 | 1961 |
| I 93 over Other Tri Community Gree | Fair | 35.4 ft | 190,000 | 1958 |
| I 93 over Rr Bmrr Spur (aband) | Fair | 28.5 ft | 189,880 | 1958 |
| I 93 over HWY Riverside AVE | Fair | 206.0 ft | 179,680 | 1961 |
| I 95 /st128 over Rr Mbta/bmrr | Fair | 227.0 ft | 178,839 | 1950 |
| I 93 over HWY Fallon Road | Fair | 124.7 ft | 176,618 | 1958 |
| I 90 over HWY Charles ST | Fair | 41.0 ft | 176,121 | 1964 |
| I 95 /st128 over Water Stony Brook | Fair | 28.9 ft | 172,999 | 1950 |
| I 95 /st128 over Water Charles River | Fair | 145.3 ft | 169,456 | 1961 |
| I 93 over HWY West ST | Fair | 158.1 ft | 158,200 | 1959 |
| I 93 over HWY Concord ST | Fair | 147.0 ft | 155,000 | 1958 |
| I 95 /st128 over Water Charles River | Fair | 183.1 ft | 150,529 | 1950 |
| I 95 /st128 over Other Mdc Aqueduct | Fair | 41.0 ft | 150,095 | 1950 |
| I 95 /st128 over HWY Norumbega RD | Fair | 53.1 ft | 147,364 | 1950 |
| I 93 NB over HWY Vale ST | Fair | 44.9 ft | 145,580 | 1958 |
| I 93 SB over HWY Vale ST | Fair | 44.9 ft | 145,580 | 1958 |
| I 95 /st128 over Rr Mbta/bmrr | Fair | 65.0 ft | 144,478 | 1950 |
| I 93 over ST 28 & St38 & Temple ST | Fair | 2352.0 ft | 143,941 | 1973 |
| I 95 /st128 over HWY Pleasure Island RD | Fair | 51.8 ft | 142,650 | 1948 |
| I 90 over Other Aqdct At Wllsly ST | Fair | 60.0 ft | 134,822 | 1957 |
| I 95 /st128 over HWY North AVE | Fair | 73.2 ft | 134,371 | 1950 |
| I 495 SB over Water River Meadow Brook | Fair | 44.0 ft | 128,820 | 1959 |
| I 95 /st128 over St129 WB Main ST | Fair | 66.9 ft | 128,500 | 1949 |
| I 95 /st128 over St129 EB Lowell ST | Fair | 74.1 ft | 128,500 | 1949 |
| I 95 /st128 over Rr Bmrr/mbta | Fair | 20.0 ft | 127,837 | 1948 |
| US 3 over Water River Meadow Brk | Fair | 42.0 ft | 126,338 | 1959 |
| I 95 /st128 over HWY Parker RD | Fair | 59.1 ft | 125,000 | 1959 |
| I 93 over HWY Shore DR | Fair | 86.0 ft | 123,134 | 1973 |
| HWY Oak ST over I 90 | Fair | 227.0 ft | 122,017 | 1957 |
| I 90 over Water Aqdct At Shaylr LN | Fair | 42.0 ft | 122,017 | 1957 |
| I 495 SB over HWY Tadmuck RD | Fair | 133.2 ft | 120,395 | 1961 |
| I 90 over Comb I 95 & Charles Riv | Fair | 1037.1 ft | 119,166 | 1964 |
| I 495 NB over US 3 | Fair | 314.6 ft | 118,965 | 2004 |
| I 90 over Rr Csx/mbta | Fair | 182.1 ft | 113,830 | 1964 |
| I 90 Ramps A & B over Other Mwra Aqueduct | Fair | 72.2 ft | 109,700 | 1957 |
| I 495 NB over Water River Meadow Brook | Fair | 44.0 ft | 109,174 | 1959 |
| I 90 over Water Sudbury River | Fair | 29.9 ft | 108,318 | 1957 |
| I 90 over Rr Csx/mbta | Fair | 116.1 ft | 106,825 | 1965 |
| I 90 Ramps J & L over Other Mdc Aqueduct | Fair | 51.8 ft | 105,000 | 1957 |
| US 3 SB over HWY Parkhurst RD | Fair | 60.7 ft | 100,800 | 2004 |
| US 3 NB over HWY Parkhurst RD | Fair | 60.7 ft | 100,800 | 2004 |
| US 3 over Water Stony Brook | Fair | 56.1 ft | 100,800 | 1959 |
| HWY French ST over Water Merrimack Canal | Fair | 58.1 ft | 99,300 | 1960 |
| I 95 Sb/st128 SB over HWY Winn ST | Fair | 60.0 ft | 99,185 | 1949 |
| I 95 Sb/st128 SB over ST 38 Sb/main ST | Fair | 123.0 ft | 97,354 | 1949 |
| I 95 Sb/st128 SB over HWY Middlesex Tpk | Fair | 161.4 ft | 96,637 | 1962 |
| I 95 Nb/st128 NB over HWY Middlesex Tpk | Fair | 161.4 ft | 94,875 | 1962 |
| I 93 NB over ST 28 Fellsway Wst | Fair | 88.9 ft | 93,010 | 1959 |
| I 95 Nb/st128 NB over HWY S Bedford ST | Fair | 132.9 ft | 92,706 | 1950 |
| I 95 Sb/st128 SB over HWY Forest Park RD | Fair | 134.8 ft | 90,617 | 1950 |
| I 95 Nb/st128 NB over ST 3 A/cambridge ST | Fair | 205.1 ft | 89,900 | 1950 |
| I 290 WB over I 495 | Fair | 272.0 ft | 89,528 | 1968 |
| I 495 SB over HWY Golden Cove RD | Fair | 107.9 ft | 88,200 | 1960 |
| HWY Lowell Conn over Water River Meadow Brook | Fair | 39.0 ft | 88,000 | 1960 |
| I 93 SB over Rr Mbta/bmrr | Fair | 91.9 ft | 87,100 | 1958 |
| I 90 WB over ST 27 N Main ST | Fair | 146.0 ft | 84,899 | 1957 |
| ST 9 Boylston ST over HWY Quinobequin RD | Fair | 59.1 ft | 84,828 | 1932 |
| I 93 SB over ST 28 Fellsway Wst | Fair | 88.9 ft | 84,600 | 1959 |
| I 95 Nb/st128 NB over HWY Forest Park RD | Fair | 134.8 ft | 83,334 | 1950 |
| ST 2 over HWY Dow AVE | Fair | 86.0 ft | 82,857 | 1967 |
| ST 9 Boylston ST over HWY Chestnut ST | Fair | 58.1 ft | 82,758 | 1932 |
| ST 9 Boylston ST over HWY Centre ST | Fair | 95.1 ft | 82,758 | 1932 |
| I 95 Nb/st128 NB over HWY Winn ST | Fair | 60.0 ft | 82,490 | 1949 |
| I 95 Nb/st128 NB over ST 38 Wb/main ST | Fair | 70.9 ft | 80,004 | 1949 |
| I 93 SB over Water Ipswich River | Fair | 41.0 ft | 78,543 | 1958 |
| I 93 NB over Water Ipswich River | Fair | 41.0 ft | 76,634 | 1958 |
| ST 2 EB over HWY Pleasant ST | Fair | 164.0 ft | 76,566 | 1965 |
| I 95 Nb/st128 NB over ST 38 Sb/main ST | Fair | 123.0 ft | 76,341 | 1949 |
| I 93 NB over Rr Mbta/bmrr | Fair | 76.1 ft | 73,300 | 1959 |
| I 93 SB over Rr Mbta/bmrr | Fair | 69.9 ft | 71,877 | 1959 |
| US 1 over HWY Lynn ST | Fair | 66.9 ft | 70,180 | 1937 |
| US 3 SB over ST 40 Groton RD | Fair | 135.8 ft | 68,922 | 2004 |
| I 90 WB over HWY Wellesley ST | Fair | 65.0 ft | 68,163 | 1957 |
| ST 16 Washngton ST over I 95 /st128 | Fair | 238.8 ft | 67,758 | 1962 |
| I 90 EB over HWY Indian Rock Road | Fair | 32.5 ft | 67,521 | 1957 |
| I 90 EB over HWY Ridgeway RD | Fair | 57.4 ft | 66,710 | 1957 |
| I 90 WB over HWY Ridgeway RD | Fair | 46.9 ft | 66,710 | 1957 |
| I 495 NB over HWY Golden Cove RD | Fair | 107.9 ft | 66,190 | 1960 |
| I 495 NB over ST 38 Main ST | Fair | 138.1 ft | 65,434 | 1961 |
| I 495 SB over St133 Andover ST | Fair | 227.7 ft | 65,206 | 1961 |
| I 90 WB over HWY Indian Rock Road | Fair | 32.5 ft | 65,074 | 1957 |
| ST 28 Fellsway over Water Mystic River | Fair | 720.1 ft | 64,248 | 1935 |
| I 495 SB over Water Beaver Brook | Fair | 48.9 ft | 64,006 | 1962 |
| I 90 EB over Water Sudbury River | Fair | 180.1 ft | 62,597 | 1957 |
| I 495 SB over US 3 | Fair | 314.6 ft | 61,400 | 2004 |
| US 3 /st2&16/alwf over HWY Alw Sta Access RD | Fair | 29.9 ft | 59,700 | 1984 |
| I 495 SB over St225 Concord RD | Fair | 128.0 ft | 59,452 | 1959 |
| US 3 SB over HWY Farm RD | Fair | 45.9 ft | 59,224 | 2004 |
| I 495 NB over St110 Chelmsford ST | Fair | 170.3 ft | 58,760 | 1960 |
| US 20 Eb/bstn Pst over I 495 | Fair | 285.1 ft | 58,094 | 1962 |
| I 93 NB over Rr Mbta/bmrr | Fair | 95.1 ft | 57,950 | 1958 |
| I 90 WB over Water Sudbury River | Fair | 180.1 ft | 57,526 | 1957 |
| I 90 WB over HWY Edgell RD | Fair | 120.4 ft | 57,032 | 1957 |
| I 90 EB over ST 27 N Main ST | Fair | 146.0 ft | 56,977 | 1957 |
| I 90 Ramps over Comb I 95 & Charles Riv | Fair | 594.8 ft | 56,670 | 1957 |
| I 495 NB over Water Beaver Brook | Fair | 48.9 ft | 56,219 | 1962 |
| St110 /st38 over Water Merrimack River | Fair | 455.1 ft | 56,200 | 1954 |
| I 495 NB over St225 Concord RD | Fair | 138.1 ft | 56,013 | 1959 |
| HWY Lowell Conn over Rr Mbta/bmrr | Fair | 116.1 ft | 55,846 | 1960 |
| HWY Lowell Conn over HWY Howard ST | Fair | 50.9 ft | 55,800 | 1960 |
| I 90 EB over HWY Wellesley ST | Fair | 65.0 ft | 55,702 | 1957 |
| I 90 EB over HWY Edgell RD | Fair | 122.0 ft | 55,581 | 1957 |
| ST 2 Concord Tpk over Rr Mbta/bmrr | Fair | 74.1 ft | 55,260 | 1991 |
| I 495 SB over St110 Chelmsford ST | Fair | 170.3 ft | 55,100 | 1960 |
| I 495 SB over HWY Donald Lynch BLVD | Fair | 125.7 ft | 54,415 | 1963 |
| US 3 NB over HWY Farm RD | Fair | 45.9 ft | 53,663 | 2004 |
| I 495 SB over St135 Wood ST | Fair | 61.0 ft | 53,404 | 1966 |
| ST 9 Boylston ST over Water Hemlock Gorge | Fair | 23.0 ft | 53,100 | 1932 |
| I 90 WB over HWY Central ST | Fair | 67.3 ft | 52,861 | 1957 |
| I 90 WB over St126 Concord ST | Fair | 125.0 ft | 52,861 | 1957 |
| ST 16 Rev Bch PKWY over Rr Mbta/bmrr | Fair | 232.0 ft | 52,800 | 1956 |
| I 90 EB over HWY Central ST | Fair | 67.3 ft | 52,197 | 1957 |
| I 90 EB over St126 Concord ST | Fair | 125.0 ft | 52,197 | 1957 |
| I 90 Ex 117 In 13 over ST 30 Cochituate RD | Fair | 125.0 ft | 52,165 | 1957 |
| I 90 Ex 117 In 13 over HWY Speen ST | Fair | 80.7 ft | 52,165 | 1957 |
| US 3 NB over ST 40 Groton RD | Fair | 135.8 ft | 51,585 | 2004 |
| ST 9 Boylston ST over Water Charles River | Fair | 76.1 ft | 51,270 | 1900 |
| US 3 NB over HWY Main ST | Fair | 107.3 ft | 51,000 | 2004 |
| US 3 SB over HWY Richardson RD | Fair | 113.8 ft | 50,638 | 2004 |
| I 495 NB over Other Bruce Freeman Rail | Fair | 88.9 ft | 50,600 | 1959 |
| St110 /rte3a/chmfd over Rr Bmrr | Fair | 157.2 ft | 50,300 | 1971 |
| ST 16 Washngton ST over Tr Green Line D | Fair | 38.1 ft | 50,300 | 1850 |
| I 495 NB over HWY River RD | Fair | 133.9 ft | 49,446 | 1963 |
| I 90 WB over Other Cochituate Trail | Fair | 141.1 ft | 48,609 | 1957 |
| ST 2 EB over HWY Waltham ST | Fair | 144.0 ft | 48,500 | 1965 |
| I 90 EB over Other Cochituate Trail | Fair | 141.1 ft | 48,475 | 1957 |
| I 495 NB over HWY Donald Lynch BLVD | Fair | 138.5 ft | 48,156 | 1963 |
| I 495 NB over St135 Wood ST | Fair | 61.0 ft | 48,152 | 1966 |
| I 495 SB over HWY River RD | Fair | 141.1 ft | 47,879 | 1963 |
| ST 2 Elm ST over Water Assabet River | Fair | 76.1 ft | 47,800 | 1904 |
| ST 2 Concord Tpk over Rr Mbta/bmrr | Fair | 68.9 ft | 46,900 | 1988 |
| I 495 NB over HWY Berlin RD | Fair | 145.0 ft | 46,783 | 1963 |
| ST 2 WB over HWY Waltham ST | Fair | 144.0 ft | 46,400 | 1965 |
| I 495 SB over Other Bruce Freeman Rail | Fair | 88.9 ft | 45,760 | 1959 |
| I 90 Ramp D over ST 30 South Av& I95 Rmps | Fair | 461.9 ft | 45,000 | 1957 |
| HWY Washngton ST over I 95 /st128 | Fair | 160.1 ft | 45,000 | 1961 |
| ST 3 NB over HWY Ledge RD | Fair | 42.0 ft | 44,423 | 2004 |
| ST 2 over Water Nashoba Brook | Fair | 27.9 ft | 43,300 | 1951 |
| ST 3 SB over HWY Ledge RD | Fair | 42.0 ft | 43,149 | 2004 |
| ST 16 Myst Val Pky over I 93 | Fair | 184.1 ft | 42,991 | 1961 |
| ST 2 over HWY Foster ST | Fair | 52.2 ft | 42,826 | 1950 |
| ST 2 over Rr Mbta/bmrr | Fair | 173.9 ft | 42,826 | 1950 |
| I 90 Rmp D Int 14 over Other Mdc Pipe@nrmbga RD | Fair | 35.8 ft | 42,700 | 1956 |
| ST 4 Bedford ST over I 95 /st128 | Fair | 232.9 ft | 42,543 | 1961 |
| ST 9 Boylston ST over HWY Hammond Pond PKWY | Fair | 129.9 ft | 42,320 | 1933 |
| US 3 SB over St110 Chelmsford ST | Fair | 98.8 ft | 42,155 | 2004 |
| ST 99 Sb/main ST over Rr Mbta/bmrr/csx | Fair | 128.9 ft | 42,000 | 1954 |
| St113 /st3a/kendll over Rr Bmrr | Fair | 66.9 ft | 42,000 | 1930 |
| US 3 Memorial DR over Rr Csx | Fair | 45.9 ft | 41,897 | 1906 |
| ST 16 Myst Val Pky over Comb Mystic R & Ped/bky | Fair | 307.7 ft | 41,250 | 1988 |
| HWY Land BLVD over Water Lechmere Canal | Fair | 130.9 ft | 40,991 | 1986 |
| HWY Winter ST over I 95 /st128 | Fair | 274.6 ft | 40,700 | 2011 |
| HWY Lwll Conn NB over I 495 Ramp B-11 | Fair | 115.8 ft | 40,019 | 1959 |
| US 90 Ramp D over HWY Norumbega RD | Fair | 65.9 ft | 39,700 | 1957 |
| ST 16 Myst Val Pky over ST 38 Main ST | Fair | 159.1 ft | 39,300 | 1961 |
| HWY Montvale AVE over Water Aberjona River | Fair | 27.9 ft | 39,100 | 1958 |
| I 290 WB over HWY Bigelow ST | Fair | 77.1 ft | 38,956 | 1968 |
| I 290 EB over HWY Bigelow ST | Fair | 77.1 ft | 38,872 | 1968 |
| HWY Main ST over ST 9 Worcester RD | Fair | 118.1 ft | 38,300 | 1967 |
| I 90 Ramp J over I 90 | Fair | 241.1 ft | 37,629 | 1962 |
| ST 2 WB over HWY Pleasant ST | Fair | 164.0 ft | 37,400 | 1965 |
| ST 2 over HWY Central ST | Fair | 65.9 ft | 37,218 | 1950 |
| ST 9 Worcester RD over I 90 | Fair | 333.0 ft | 37,124 | 1957 |
| ST 4 Great RD over Water Shawsheen River | Fair | 34.1 ft | 37,000 | 1903 |
| HWY Mt Auburn ST over Other Greenway M/u Path | Fair | 43.0 ft | 36,600 | 1955 |
| HWY Lowell Conn over HWY Thorndike ST | Fair | 67.3 ft | 35,900 | 1960 |
| I 90 WB over St135 Wood ST | Fair | 128.3 ft | 35,652 | 1957 |
| HWY Mishawum RD over Rr Mbta/bmrr | Fair | 65.9 ft | 35,560 | 1977 |
| ST 30 Comm AVE over Water Charles River | Fair | 138.1 ft | 35,200 | 1962 |
| HWY NB Lowll Con over HWY Indstrial AVE East | Fair | 127.0 ft | 35,000 | 1960 |
| HWY SB Lowll Con over HWY Indstrial AVE East | Fair | 127.0 ft | 35,000 | 1960 |
| St225 Groton RD over Water Squannacook River | Fair | 73.2 ft | 34,059 | 1996 |
| ST 16 Myst Val Pky over Water Mystic River | Fair | 60.0 ft | 33,900 | 1906 |
| HWY Washngton ST over Comb I 90 & Csx/mbta | Fair | 220.1 ft | 33,750 | 1964 |
| ST 4 North RD over I 495 | Fair | 155.8 ft | 33,500 | 1959 |
| ST 99 Sb/broadway over ST 16 Rev Bch PKWY | Fair | 107.9 ft | 33,000 | 1956 |
| ST 30 South AVE over I 95 /st128 | Fair | 270.0 ft | 32,600 | 1962 |
| ST 62 Middlesex Av over I 93 | Fair | 250.0 ft | 32,400 | 1958 |
| ST 28 Main ST over Water Ipswich River | Fair | 61.0 ft | 32,300 | 1904 |
| HWY Medford ST over Water Malden River | Fair | 129.9 ft | 32,100 | 1976 |
| I 90 EB Off Ramp over Other Mdc Aqueduct | Fair | 27.9 ft | 31,700 | 1961 |
| HWY Prospect ST over Water Charles River | Fair | 131.9 ft | 31,500 | 1888 |
| ST 28 Main ST over Water Martins Brook | Fair | 21.0 ft | 31,080 | 1903 |
| I 290 EB over I 495 | Fair | 272.0 ft | 30,965 | 1968 |
| HWY Montvale AVE over Rr Mbta/bmrr | Fair | 64.0 ft | 30,800 | 1987 |
| I 90 Ramp On&off over I 495 | Fair | 248.0 ft | 30,736 | 1968 |
| HWY Thorndike ST over Water Pawtucket Canal | Fair | 119.1 ft | 30,000 | 1986 |
| HWY Washngton ST over Water Aberjona River | Fair | 24.9 ft | 30,000 | 1934 |
| US 20 Wb/weston ST over I 95 /st128 | Fair | 245.1 ft | 29,822 | 1960 |
| I 290 Ramp H over HWY 85 Connector | Fair | 86.9 ft | 29,749 | 1978 |
| St129 Richmond RD over Rr Mbta/bmrr | Fair | 90.9 ft | 29,500 | 1973 |
| I 95 NB Ramp over Other Mdc Aqueduct | Fair | 27.9 ft | 29,482 | 1957 |
| ST 38 Main ST over Rr Bmrr | Fair | 158.1 ft | 29,095 | 1938 |
| ST 3 Nb/memorl DR over ST 3 SB To Longfllw Brg | Fair | 67.9 ft | 28,450 | 1957 |
| St129 Lowell ST over Rr Mbta/bmrr | Fair | 120.1 ft | 28,448 | 1958 |
| HWY Hammond Pd over Tr Green Line D | Fair | 74.1 ft | 28,300 | 1933 |
| ST 28 Fellsway over Rr Bmrr (abandoned) | Fair | 35.1 ft | 28,190 | 1850 |
| US 20 Main ST over Rr Mbta/bmrr | Fair | 233.9 ft | 28,190 | 1936 |
| ST 99 Nb/broadway over Rr Mbta/bmrr/csx | Fair | 110.9 ft | 28,000 | 1956 |
| US 3 NB over St110 Chelmsford ST | Fair | 98.8 ft | 27,931 | 2004 |
| US 3 Cd SB over St110 Chelmsford ST | Fair | 98.8 ft | 27,673 | 2004 |
| US 3 Cd NB over St110 Chelmsford ST | Fair | 98.8 ft | 27,673 | 2004 |
| HWY School ST over Water Northern Canal | Fair | 158.1 ft | 27,672 | 1848 |
| HWY Lakeview AVE over Water Beaver Brook | Fair | 49.9 ft | 26,900 | 1850 |
| HWY Dutton ST over Water Western Canal | Fair | 38.4 ft | 26,600 | 1986 |
| ST 16 Myst Val Pky over Water Mystic River | Fair | 64.0 ft | 26,600 | 1906 |
| HWY Lexington ST over Rr Mbta/bmrr | Fair | 57.1 ft | 26,120 | 1952 |
| HWY Lwll Conn SB over I 495 Ramp B-11 | Fair | 114.8 ft | 26,100 | 1959 |
| HWY Myst Val Pky over Water Alewife Brook | Fair | 110.9 ft | 26,000 | 1908 |
| HWY Aiken ST over Water Merrimack River | Fair | 779.9 ft | 26,000 | 1883 |
| I 90 Ex 106 I 11a over I 90 | Fair | 275.3 ft | 25,892 | 1968 |
| HWY Middlesex RD over Water Bridge Meadow Brk | Fair | 28.9 ft | 25,465 | 1930 |
| I 90 Ramp G over I 90 Ramps A & B | Fair | 202.1 ft | 25,344 | 1962 |
| HWY Marble ST over I 93 | Fair | 184.1 ft | 25,335 | 1958 |
| HWY SB Lowll Con over HWY Lincoln ST | Fair | 68.9 ft | 25,100 | 1960 |
| HWY Wales ST over Water Charles River | Fair | 58.7 ft | 25,086 | 1928 |
| St129 Billerica RD over US 3 | Fair | 285.4 ft | 25,000 | 2004 |
| I 90 Ramp G over I 90 & Ramp K | Fair | 229.0 ft | 24,569 | 1962 |
| ST 60 Medford ST over Water Mystic River | Fair | 49.9 ft | 24,310 | 1936 |
| ST 99 Nb/broadway over ST 16 Rev Bch PKWY | Fair | 120.1 ft | 24,000 | 1956 |
| HWY Indstrial Av over Water River Meadow Brook | Fair | 40.0 ft | 24,000 | 1959 |
| HWY Beacon ST over Tr Green Line D | Fair | 37.1 ft | 24,000 | 1917 |
| HWY Wood ST Ext over Comb Bmrr & Merrimack R | Fair | 1112.9 ft | 23,900 | 1983 |
| I 90 Ex 117 In 13 over Other Cochituate Trail | Fair | 37.4 ft | 23,755 | 1957 |
| St125 Ballrdvle ST over I 93 | Fair | 319.9 ft | 23,700 | 1958 |
| St129 Richmond RD over Water Middlesex Canal | Fair | 30.5 ft | 23,700 | 1974 |
| HWY Concord RD over US 3 | Fair | 300.9 ft | 23,405 | 2004 |
| HWY SB Lowll Con over Rr Csx (abandoned) | Fair | 68.9 ft | 23,224 | 1960 |
| US 20 Main ST over Rr Bmrr (abandoned) | Fair | 56.1 ft | 22,400 | 1954 |
| US 20 EB over Rr Mbta/bmrr | Fair | 140.1 ft | 22,400 | 1950 |
| ST 2 A/mass AVE over Rr Mbta/bmrr | Fair | 37.4 ft | 22,200 | 1899 |
| HWY East ST over Water Strong Water Brook | Fair | 21.3 ft | 22,050 | 2008 |
| HWY Park RD over I 90 Ramps J & L | Fair | 263.1 ft | 21,724 | 1957 |
| ST 30 Comm RD over I 90 | Fair | 288.1 ft | 21,700 | 1957 |
| HWY Bridge ST over Water Charles River | Fair | 96.1 ft | 21,500 | 1967 |
| I 93 St38 SB Rmp over HWY Connector Ramp D&k | Fair | 185.0 ft | 21,400 | 1973 |
| ST 16 Ramp over Rr Mbta/bmrr | Fair | 174.9 ft | 21,300 | 1954 |
| ST 3 A/prncetn ST over Comb Bmrr & Stony Brook | Fair | 87.9 ft | 21,207 | 1956 |
| US 20 WB over Rr Mbta/bmrr | Fair | 40.0 ft | 20,900 | 1960 |
| HWY School ST over Water Merrimack River | Fair | 336.0 ft | 20,800 | 1917 |
| ST 16 Washngton ST over Water Charles River | Fair | 141.1 ft | 20,800 | 1929 |
| HWY NB Lowll Con over Rr Csx (abandoned) | Fair | 68.9 ft | 20,716 | 1960 |
| HWY Pawtucket ST over Rr Bmrr | Fair | 153.9 ft | 20,560 | 1976 |
| HWY River ST over Water Beaver Brook | Fair | 26.6 ft | 20,528 | 1984 |
| ST 2 A/e Main ST over Rr Mbta / Bmrr | Fair | 115.2 ft | 20,477 | 1949 |
| HWY Parker ST over ST 9 Boylston ST | Fair | 68.9 ft | 20,302 | 1932 |
| US 3 SB over I 95 /st128 & Cd | Fair | 284.1 ft | 20,200 | 1962 |
| HWY Winthrop ST over Rr Mbta/bmrr | Fair | 43.0 ft | 20,172 | 1984 |
| I 90 WB Ramp Off over Rr Csx/mbta | Fair | 102.0 ft | 19,914 | 1964 |
| ST 62 Burlngtn AVE over Rr Mbta/bmrr | Fair | 132.5 ft | 19,530 | 2000 |
| ST 3 A/boston RD over Water Shawsheen River | Fair | 27.9 ft | 19,400 | 1915 |
| I 90 WB Ramp On over Rr Csx/mbta | Fair | 71.9 ft | 19,009 | 1964 |
| ST 28 Mcgrath over HWY Washington ST | Fair | 649.9 ft | 18,860 | 1951 |
| HWY 85 Connector over HWY Pleasant ST | Fair | 90.9 ft | 18,574 | 1978 |
| HWY Lwll Conn NB over HWY Riverneck RD | Fair | 120.1 ft | 18,549 | 1959 |
| HWY Park AVE over Comb Minutmn Bp & Brook | Fair | 39.7 ft | 18,500 | 1900 |
| ST 16 Galen ST over Water Charles River | Fair | 89.9 ft | 18,491 | 1907 |
| ST 3 A/boston RD over Water Concord River | Fair | 180.1 ft | 18,283 | 1920 |
| HWY Bridge ST over Water Merrimack River | Fair | 474.1 ft | 18,230 | 1937 |
| HWY Bacon ST over Water Aberjona River | Fair | 29.9 ft | 18,200 | 1920 |
| ST 28 Sb/mcgrath over HWY Medford ST | Fair | 774.0 ft | 18,135 | 1951 |
| HWY Hartwell AVE over Water Kiln Brook | Fair | 58.1 ft | 18,000 | 1959 |
| HWY Merrimack ST over Water Merrimack Canal | Fair | 36.1 ft | 18,000 | 1823 |
| HWY Fr Moris Blv over Water Western Canal | Fair | 64.0 ft | 18,000 | 1967 |
| HWY Merrimack ST over Water Western Canal | Fair | 25.9 ft | 17,900 | 1831 |
| HWY School ST over HWY Parking Lot | Fair | 307.1 ft | 17,845 | 1995 |
| ST 16 Eb/wshgtn ST over Comb I 90 & Csx/mbta | Fair | 210.0 ft | 17,600 | 1964 |
| HWY NB Lowll Con over HWY Lincoln ST | Fair | 66.9 ft | 17,510 | 1960 |
| HWY School ST over Water Pawtucket Canal | Fair | 149.0 ft | 17,457 | 1995 |
| ST 62 Main ST over Water Assabet River | Fair | 86.9 ft | 17,300 | 1978 |
| HWY Central ST over Water Sudbury River | Fair | 86.0 ft | 17,300 | 1969 |
| St113 Pleasant ST over Water Beaver Bk East Str | Fair | 24.0 ft | 17,123 | 1855 |
| St113 Pleasant ST over Water Beaver Bk West Str | Fair | 24.0 ft | 17,123 | 1855 |
| ST 62 Burlingtn RD over Water Shawsheen River | Fair | 35.1 ft | 17,100 | 1962 |
| ST 62 /st2a/main over Water Sudbury River | Fair | 71.9 ft | 17,100 | 1909 |
| HWY Kearney Sq over Water Eastern Canal | Fair | 65.0 ft | 16,900 | 1835 |
| HWY Rsvelt Rot N over I 93 | Fair | 145.7 ft | 16,800 | 1961 |
| HWY River RD over I 95 /st128 | Fair | 262.1 ft | 16,800 | 1960 |
| HWY Newton ST over Water Charles River | Fair | 89.9 ft | 16,601 | 1877 |
| HWY South ST over Water Stony Brook | Fair | 65.9 ft | 16,293 | 2003 |
| I 93 Rp To I93 NB over I 93 | Fair | 207.0 ft | 16,231 | 1972 |
| I 95 /st128 over ST 28 Main ST | Fair | 88.3 ft | 16,090 | 1950 |
| HWY Salem End RD over Water Stearns Reservoir | Fair | 33.1 ft | 15,625 | 1870 |
| HWY Rogers ST over Water Concord River | Fair | 198.2 ft | 15,600 | 1884 |
| St113 /st3a/kendll over Water Merrimack River | Fair | 590.6 ft | 15,470 | 1930 |
| I 93 Ramp Ts over US 1 Ramp Lc | Fair | 779.9 ft | 15,468 | 2002 |
| HWY Salem ST over I 93 | Fair | 234.9 ft | 15,400 | 1957 |
| HWY Fellsway Wst over I 93 | Fair | 204.1 ft | 15,200 | 1962 |
| HWY Speen ST NB over HWY Ramps D & G | Fair | 104.3 ft | 15,000 | 1977 |
| HWY Trapelo RD over Rr Mbta/bmrr | Fair | 68.9 ft | 14,900 | 1952 |
| HWY Prospect ST over Rr Mbta/bmrr | Fair | 40.0 ft | 14,900 | 1933 |
| HWY Medford ST over Rr Mbta/bmrr | Fair | 149.9 ft | 14,800 | 1910 |
| HWY Moody ST over Water Charles River | Fair | 225.1 ft | 14,800 | 1917 |
| US 20 Bstn Post RD over Water Hop Brook | Fair | 24.0 ft | 14,603 | 1947 |
| HWY Lyman ST over Water Lyman Pond Creek | Fair | 42.7 ft | 14,500 | 1999 |
| HWY Main ST over Water Wedge Pond Otlt | Fair | 23.0 ft | 14,483 | 1935 |
| HWY Concord ST over Water Sudbury River | Fair | 62.0 ft | 14,425 | 1992 |
| ST 62 Main ST over Water Power Canal | Fair | 23.0 ft | 14,400 | 1885 |
| ST 62 Main ST over Water Assabet River | Fair | 57.1 ft | 14,400 | 1886 |
| HWY Grove ST over I 95 /st128 | Fair | 232.9 ft | 14,400 | 1961 |
| HWY Winter ST over Water Sudbury River | Fair | 24.3 ft | 14,300 | 1877 |
| HWY Winter ST over Water Sudbury River | Fair | 42.0 ft | 14,300 | 1870 |
| HWY E Merrimack over Water Concord River | Fair | 124.0 ft | 14,250 | 1896 |
| St119 Great RD over I 495 | Fair | 312.0 ft | 14,233 | 1960 |
| HWY Wilder ST over Rr Bmrr Pan Am | Fair | 41.3 ft | 14,200 | 1850 |
| HWY College AVE over Rr Mbta/bmrr | Fair | 83.3 ft | 14,100 | 1997 |
| ST 4 SB over US 3 Nb/sb | Fair | 164.0 ft | 14,018 | 2004 |
| HWY Beacon ST over Rr Mbta/bmrr | Fair | 64.6 ft | 14,000 | 1899 |
| St119 Great RD over Rr Bmrr | Fair | 148.3 ft | 13,913 | 1995 |
| St119 Great RD over Water Beaver Brook | Fair | 25.9 ft | 13,913 | 1921 |
| HWY Rsvelt Rot S over I 93 | Fair | 149.0 ft | 13,900 | 1961 |
| St119 South RD over Water Nashua River | Fair | 174.9 ft | 13,807 | 1931 |
| St119 South ST over Water Nashua River Trib | Fair | 25.9 ft | 13,807 | 1910 |
| HWY Centre ST over Tr Green Line D | Fair | 117.5 ft | 13,600 | 1907 |
| I 93 NB On Ramp over Comb Mystic Av & Pedest | Fair | 498.0 ft | 13,464 | 1973 |
| St113 Kendall RD over US 3 | Fair | 297.2 ft | 13,448 | 2004 |
| HWY Lawrence ST over Water Concord River | Fair | 204.1 ft | 13,300 | 1850 |
| I 93 SB Off Ramp over I 93 Connectors | Fair | 578.1 ft | 13,300 | 1973 |
| HWY Washngton ST over Rr Mbta/bmrr | Fair | 65.0 ft | 13,200 | 1982 |
| ST 38 NB Smith Rty over HWY Lowell-lwrnce BLVD | Fair | 144.0 ft | 13,060 | 1954 |
| HWY Faulkner ST over Water Concord River | Fair | 103.0 ft | 13,000 | 1850 |
| HWY Sudbury RD over Water Sudbury River | Fair | 120.7 ft | 13,000 | 1967 |
| St110 Church over Water Concord River | Fair | 102.0 ft | 13,000 | 1858 |
| HWY Landham RD over Rr Bmrr (abandoned) | Fair | 39.0 ft | 13,000 | 1970 |
| HWY River ST over Water Concord River | Fair | 149.9 ft | 12,900 | 2003 |
| HWY Haverhill ST over Water Ipswich River | Fair | 44.9 ft | 12,900 | 1958 |
| HWY Plain ST over Water River Meadow Brook | Fair | 41.0 ft | 12,850 | 1960 |
| HWY ST James ST over Comb I 90 & Csx/mbta | Fair | 276.9 ft | 12,802 | 1964 |
| ST 2 A/st110/ayer over Rr Mbta/bmrr | Fair | 91.9 ft | 12,797 | 1975 |
| St111 Mass AVE over Water Fort Pond Brook | Fair | 22.0 ft | 12,700 | 1907 |
| HWY Memorl DR EB over Water Charles River | Fair | 878.0 ft | 12,579 | 1956 |
| ST 27 Old Sudbury over Water Sudbury River | Fair | 108.9 ft | 12,500 | 1956 |
| HWY Spring ST over ST 2 | Fair | 223.1 ft | 12,434 | 1967 |
| HWY Treble Cove over US 3 | Fair | 355.6 ft | 12,400 | 2004 |
| St117 Great RD over Water Elizabeth Brook | Fair | 34.1 ft | 12,373 | 1952 |
| ST 62 Washngton ST over Water Ipswich River | Fair | 42.3 ft | 12,300 | 1947 |
| HWY Lwll Conn SB over HWY Riverneck RD | Fair | 119.8 ft | 12,203 | 1959 |
| HWY Lowell RD over Water Concord River | Fair | 92.8 ft | 12,000 | 1964 |
| ST 2 A/maple ST over Other Minuteman Bike Pth | Fair | 54.1 ft | 12,000 | 1919 |
| HWY Aiken ST over Water Northern Canal | Fair | 116.5 ft | 11,800 | 1897 |
| HWY Skillings RD over Water Aberjona River | Fair | 41.7 ft | 11,800 | 1955 |
| HWY Florence ST over HWY Dartmouth ST | Fair | 98.1 ft | 11,600 | 1975 |
| St119 Main ST over Water Squannacook River | Fair | 94.2 ft | 11,596 | 1950 |
| St135 Union ST over Water Sudbury River | Fair | 91.9 ft | 11,481 | 1900 |
| HWY Crossng BLVD over Comb ST 9 & Csx | Fair | 218.2 ft | 11,379 | 1989 |
| ST 62 Main ST over Water Assabet River | Fair | 80.1 ft | 11,300 | 1958 |
| St117 Great RD over Water Assabet River | Fair | 60.0 ft | 11,163 | 1900 |
| St117 Great RD over Water Mill Canal | Fair | 33.1 ft | 11,163 | 1850 |
| HWY Plsnt ST Con over Comb ST 9 WB & Csx | Fair | 191.9 ft | 11,137 | 1994 |
| ST 30 Pleasant ST over I 90 | Fair | 288.1 ft | 11,137 | 1957 |
| HWY Old Conn Pth over I 90 | Fair | 227.0 ft | 11,000 | 1957 |
| HWY Lawrence ST over Water River Meadow Brook | Fair | 20.7 ft | 10,969 | 1910 |
| HWY Dane ST over Rr Mbta/bmrr | Fair | 76.4 ft | 10,900 | 1913 |
| ST 30 Comm AVE over Comb I 90 & Csx/mbta | Fair | 187.0 ft | 10,862 | 1964 |
| ST 38 Main ST over Water Aberjona River | Fair | 35.1 ft | 10,732 | 1915 |
| ST 62 Pwdr Mill RD over Water Assabet River | Fair | 77.8 ft | 10,623 | 1953 |
| St129 Salem RD over Water Shawsheen River | Fair | 21.0 ft | 10,600 | 1932 |
| HWY Boston AVE over Water Mystic River | Fair | 68.9 ft | 10,600 | 1900 |
| HWY Mt Vernon ST over Water Aberjona River | Fair | 44.6 ft | 10,600 | 1890 |
| HWY Commnwlth Av over Water Fort Pond Brook | Fair | 36.1 ft | 10,381 | 1909 |
| I 90 Ex 111 In 12 over I 90 | Fair | 201.1 ft | 10,271 | 1957 |
| US 20 Wb/bstn Pst over I 495 | Fair | 285.1 ft | 10,227 | 1962 |
| HWY Hunt RD over I 495 | Fair | 299.2 ft | 10,200 | 1961 |
| HWY Washngton Av over Rr Mbta/csx | Fair | 67.3 ft | 10,090 | 1895 |
| HWY Elm ST over Water Sudbury River | Fair | 84.0 ft | 10,086 | 1874 |
| HWY Mt Wayte AVE over Rr Csx | Fair | 118.4 ft | 10,000 | 1947 |
| HWY Lwll Conn SB over US 3 | Fair | 328.1 ft | 9,800 | 2004 |
| HWY Waterfld RD over Water Aberjona River | Fair | 35.1 ft | 9,800 | 1915 |
| HWY Hammond ST over Tr Green Line D | Fair | 61.4 ft | 9,681 | 1893 |
| HWY Fountain ST over Water Reservoir 2 | Fair | 58.1 ft | 9,582 | 1890 |
| HWY Ymca DR over Comb Mbta/bmrr & Drive | Fair | 163.1 ft | 9,500 | 1892 |
| HWY Olympia AVE over Rr Mbta/bmrr | Fair | 158.1 ft | 9,500 | 1963 |
| HWY Cedar ST over Rr Mbta/bmrr | Fair | 77.8 ft | 9,400 | 1999 |
| HWY Union AVE over Water Hop Brook | Fair | 30.8 ft | 9,379 | 1900 |
| HWY Fountain ST over Rr Mbta/csx | Fair | 88.3 ft | 9,376 | 1900 |
| HWY Terr Hall Av over Water Vine Brook | Fair | 22.6 ft | 9,271 | 1956 |
| ST 27 Main ST over Rr Mbta/bmrr | Fair | 85.3 ft | 9,069 | 1906 |
| ST 27 Main ST over Water Fort Pond Brook | Fair | 22.0 ft | 9,069 | 1900 |
| ST 27 Main ST over ST 2 | Fair | 102.0 ft | 9,055 | 1952 |
| HWY Plain ST over Rr Csx (aband) | Fair | 75.1 ft | 9,000 | 1993 |
| HWY Pleasant ST over Water Charles River | Fair | 112.9 ft | 9,000 | 1861 |
| HWY Park RD over I 90 | Fair | 255.9 ft | 8,922 | 1962 |
| HWY Steadman ST over US 3 | Fair | 245.4 ft | 8,911 | 2004 |
| HWY Cabot ST over Water Northern Canal | Fair | 107.9 ft | 8,800 | 1850 |
| HWY Mass AVE over I 95 /st128 | Fair | 247.0 ft | 8,793 | 1961 |
| HWY Grove ST over Other Greenway M/u Path | Fair | 33.5 ft | 8,793 | 1969 |
| HWY Middlesex ST over Comb Arch ST & Bmrr | Fair | 78.1 ft | 8,692 | 1959 |
| ST 27 N Main ST over ST 9 Worcester ST | Fair | 98.4 ft | 8,538 | 1931 |
| I 90 WB Ramp Off over Rr Mbta | Fair | 56.1 ft | 8,500 | 1964 |
| HWY Cross ST over Rr Mbta/bmrr | Fair | 112.9 ft | 8,500 | 1928 |
| HWY Donald Lynch over Water Assabet River | Fair | 64.0 ft | 8,400 | 1984 |
| HWY Newton ST over Rr Mbta/bmrr | Fair | 29.9 ft | 8,400 | 1930 |
| HWY Ramp B over ST 9 & Ramp A | Fair | 137.1 ft | 8,200 | 1977 |
| ST 13 Fitchburg RD over Water Squannacook River | Fair | 73.2 ft | 8,023 | 1971 |
| HWY Lincoln ST over Water River Meadow Brook | Fair | 46.3 ft | 7,900 | 1960 |
| HWY Church ST over Comb I 90 & Csx/mbta | Fair | 182.1 ft | 7,900 | 1964 |
| HWY Mill ST over Rr Mbta/csx | Fair | 68.9 ft | 7,800 | 1900 |
| HWY Church ST over Other Central Rail Trail | Fair | 75.1 ft | 7,758 | 1911 |
| HWY Central ST over Rr Mbta/bmrr | Fair | 79.1 ft | 7,600 | 1889 |
| HWY Concord ST over Water Charles River | Fair | 81.0 ft | 7,500 | 1907 |
| HWY Depot RD over Water Stony Brook | Fair | 41.7 ft | 7,416 | 1993 |
| HWY Chestnut ST over Comb I 90 & Csx/mbta | Fair | 155.8 ft | 7,241 | 1964 |
| HWY Brook ST over Water Nashoba Brook | Fair | 25.9 ft | 7,200 | 1938 |
| HWY Front ST over Water Sudbury River | Fair | 41.7 ft | 7,170 | 1880 |
| I 93 SB On Ramp over Other Tri Community Gree | Fair | 35.4 ft | 7,050 | 1958 |
| HWY Myrtle ST over Water Sudbury River | Fair | 26.9 ft | 7,000 | 1924 |
| ST 2 A/ftchbrg RD over Water Nashua River | Fair | 123.0 ft | 6,959 | 1975 |
| St111 Hollis ST over Water Nissitissit River | Fair | 67.9 ft | 6,900 | 1958 |
| ST 2 A/great RD over Water Mulpus Brook | Fair | 27.9 ft | 6,891 | 1941 |
| HWY Elm ST over Water Charles River | Fair | 235.9 ft | 6,800 | 1850 |
| HWY Riverneck RD over US 3 | Fair | 315.0 ft | 6,700 | 2004 |
| HWY Monument ST over Water Concord River | Fair | 188.0 ft | 6,607 | 1877 |
| HWY Broadway over Water Western Canal | Fair | 35.8 ft | 6,600 | 1833 |
| HWY Cox ST over Water Assabet River | Fair | 56.1 ft | 6,500 | 1928 |
| HWY Market ST over Water Merrimack Canal | Fair | 44.0 ft | 6,500 | 1912 |
| I 93 NB Off Rmp over Other Tri Community Gree | Fair | 28.5 ft | 6,500 | 1958 |
| HWY Winter ST over Rr Mbta/bmrr | Fair | 63.0 ft | 6,400 | 1976 |
| ST 2 EB Ramp over Water Alewife Brook | Fair | 54.1 ft | 6,361 | 1986 |
| HWY West ST over I 93 | Fair | 295.9 ft | 6,300 | 1957 |
| HWY Andover RD over Rr Mbta/bmrr | Fair | 66.9 ft | 6,207 | 2006 |
| HWY Wickford RD over Water Sudbury River | Fair | 157.5 ft | 6,200 | 1956 |
| HWY W Main ST over Comb Mbta/bm & Accs RD | Fair | 357.9 ft | 6,071 | 1996 |
| HWY Parker AVE over Water Beaver Brook | Fair | 99.1 ft | 6,000 | 1956 |
| HWY Woburn ST over Water Ipswich River | Fair | 40.4 ft | 6,000 | 1980 |
| HWY Clifton ST over Comb Mbta/bmrr & Orange | Fair | 64.0 ft | 5,904 | 1899 |
| HWY Lowell ST over Rr Bmrr Spur | Fair | 47.9 ft | 5,825 | 1910 |
| HWY Summer ST over Water Shawsheen River | Fair | 27.9 ft | 5,820 | 1959 |
| HWY Lewis Ter over Comb I 90 & Csx/mbta | Fair | 192.9 ft | 5,819 | 1964 |
| HWY Woburn ST over I 93 | Fair | 171.9 ft | 5,800 | 1958 |
| HWY Pollard ST over Water Concord River | Fair | 240.5 ft | 5,750 | 1998 |
| St110 SB Smth Rty over HWY Lowell-lwrnce BLVD | Fair | 149.0 ft | 5,690 | 1954 |
| HWY Concord RD over Other Central Rail Trail | Fair | 37.1 ft | 5,431 | 1911 |
| HWY Pond ST over Rr Mbta/bmrr | Fair | 77.1 ft | 5,400 | 1986 |
| HWY Sudbury RD over Water Assabet River | Fair | 49.9 ft | 5,400 | 1902 |
| HWY Lynn Street over Water Pines River | Fair | 29.2 ft | 5,360 | 1850 |
| HWY Elm ST over I 495 SB | Fair | 79.4 ft | 5,316 | 1963 |
| HWY Elm ST over I 495 NB | Fair | 79.4 ft | 5,316 | 1963 |
| HWY River ST over Water Mystic River | Fair | 60.0 ft | 5,302 | 1938 |
| HWY Hayward RD over ST 2 | Fair | 153.9 ft | 5,301 | 1950 |
| HWY Carlisle ST over I 495 | Fair | 246.1 ft | 5,200 | 1962 |
| St111 Pleasant ST over Other Dem Rail Trail | Fair | 27.9 ft | 5,142 | 2002 |
| I 93 NB On Ramp over I 93 | Fair | 1183.7 ft | 5,069 | 2000 |
| HWY Turnpike RD over Water River Meadow Brook | Fair | 22.0 ft | 5,043 | 1984 |
| HWY Concord RD over Water Nashoba Brook | Fair | 20.0 ft | 5,000 | 1994 |
| HWY Potter RD over Water Sudbury River | Fair | 96.1 ft | 5,000 | 1957 |
| HWY Central ST over Water Ipswich River | Fair | 40.0 ft | 4,970 | 1995 |
| I 495 NB On Ramp over I 495 & Ramp D | Fair | 577.1 ft | 4,963 | 2000 |
| HWY Lowell ST over Other Minutmn Bp & Brook | Fair | 55.8 ft | 4,914 | 1937 |
| I 95 On Ramp over Other Mdc Aqueduct | Fair | 40.0 ft | 4,914 | 1950 |
| HWY Barnum RD over Water Bowers Brook | Fair | 62.0 ft | 4,820 | 1941 |
| ST 62 Gleasndle RD over Water Assabet River | Fair | 169.3 ft | 4,803 | 1947 |
| ST 62 Gleasndle RD over Water Elizabeth Brook | Fair | 22.3 ft | 4,803 | 1967 |
| HWY Lake ST over Rr Mbta/bmrr | Fair | 62.0 ft | 4,790 | 1986 |
| HWY Pond ST over Water Unknown Creek | Fair | 21.3 ft | 4,696 | 1992 |
| ST 31 State RD over Water Willard Brook | Fair | 39.0 ft | 4,671 | 1908 |
| HWY Grove ST over I 95 /st128 | Fair | 245.1 ft | 4,655 | 1962 |
| St225 W Main ST over Water Nashua River | Fair | 94.2 ft | 4,648 | 1930 |
| HWY Rangeway RD over US 3 | Fair | 232.3 ft | 4,500 | 2004 |
| St111 Nb/mass AVE over ST 2 EB | Fair | 46.9 ft | 4,460 | 1950 |
| HWY High ST over Rr Mbta/bmrr | Fair | 50.9 ft | 4,400 | 1986 |
| HWY Tileston ST over Tr Nrthrn Strand Comm | Fair | 43.0 ft | 4,400 | 2002 |
| HWY North ST over Rr Mbta/bmrr | Fair | 89.2 ft | 4,400 | 1997 |
| HWY Greenville R over Water Mason Brook | Fair | 24.9 ft | 4,350 | 1950 |
| HWY Graniteville over Rr Bmrr | Fair | 81.0 ft | 4,300 | 1998 |
| HWY Herrick RD over Tr Green Line D | Fair | 45.9 ft | 4,267 | 1907 |
| HWY Temple ST over Comb I 90 & Csx | Fair | 349.1 ft | 4,000 | 1957 |
| HWY Old Billeric over US 3 | Fair | 313.6 ft | 3,900 | 2004 |
| HWY Forest AVE over Water Assabet River | Fair | 65.9 ft | 3,900 | 1910 |
| HWY Walnut ST over Rr Mbta/bmrr | Fair | 81.7 ft | 3,900 | 1902 |
| HWY Bridge ST over Water Shawsheen River | Fair | 44.9 ft | 3,900 | 1979 |
| HWY Oak ST over I 90 | Fair | 206.0 ft | 3,900 | 1957 |
| HWY Harvard ST over Comb I 90 & Csx/mbta | Fair | 180.8 ft | 3,879 | 1964 |
| I 495 NB Off Ramp over I 495 & Ramp B | Fair | 722.1 ft | 3,834 | 2000 |
| HWY School ST over Water Stony Brook | Fair | 40.0 ft | 3,750 | 1850 |
| HWY Moody ST over Water Western Canal | Fair | 43.0 ft | 3,700 | 1913 |
| HWY Chapin RD over Water Assabet River | Fair | 48.2 ft | 3,600 | 1997 |
| HWY Forest ST over I 495 | Fair | 250.0 ft | 3,600 | 1963 |
| HWY Brookside RD over Water Stony Brook | Fair | 36.1 ft | 3,600 | 1860 |
| HWY River ST over Water Fort Pond Brook | Fair | 28.9 ft | 3,500 | 1981 |
| HWY Beaver ST over Water Beaver Brook | Fair | 94.2 ft | 3,500 | 1971 |
| HWY Locust AVE over US 3 | Fair | 240.8 ft | 3,491 | 2004 |
| HWY Bridge ST over Water Stony Brook | Fair | 27.9 ft | 3,400 | 1870 |
| HWY Hopkins ST over I 95 /st128 | Fair | 169.0 ft | 3,398 | 1959 |
| HWY Woodland RD over Comb I 90 & Csx/mbta | Fair | 254.9 ft | 3,232 | 1964 |
| HWY Banks Place over Water Spot Pond Brook | Fair | 39.4 ft | 3,200 | 1959 |
| HWY Stow ST over Water Fort Pond Brook | Fair | 29.9 ft | 3,141 | 1924 |
| HWY Butters Row over Rr Mbta/bmrr | Fair | 48.9 ft | 3,100 | 1920 |
| HWY Mountain AVE over Comb Mbta/bmrr & Orange | Fair | 94.5 ft | 3,000 | 1890 |
| HWY Langley RD over Tr Green Line D | Fair | 50.9 ft | 3,000 | 1907 |
| HWY Lawsbrook RD over Water Fort Pond Brook | Fair | 25.9 ft | 2,885 | 1928 |
| HWY Grove ST over I 90 | Fair | 196.9 ft | 2,826 | 1957 |
| HWY Town Farm RD over Water Stony Brook | Fair | 25.9 ft | 2,825 | 1949 |
| HWY Merriam ST over Rr Mbta/bmrr | Fair | 73.2 ft | 2,716 | 1928 |
| ST 9 Ramp E over ST 9 EB | Fair | 332.0 ft | 2,700 | 1989 |
| HWY Groton ST over Water Nashua River | Fair | 191.6 ft | 2,581 | 1962 |
| HWY Meadowbrk RD over Water Canal | Fair | 24.0 ft | 2,505 | 1950 |
| HWY Meadowbrk RD over Water Stony Brook | Fair | 21.3 ft | 2,500 | 2001 |
| HWY Walnut ST over Water Assabet River | Fair | 73.2 ft | 2,500 | 1922 |
| HWY Sudbury ST over Water Mill Canal | Fair | 37.1 ft | 2,500 | 1956 |
| I 93 Off Ramp over I 93 & NB On Ramp | Fair | 1603.7 ft | 2,389 | 2000 |
| St119 River RD over Water Willard Brook | Fair | 65.0 ft | 2,342 | 1908 |
| St119 River RD over Water Willard Brook | Fair | 36.1 ft | 2,342 | 1908 |
| St119 River RD over Water Willard Brook | Fair | 34.1 ft | 2,342 | 1908 |
| HWY Canal ST over Water Squannacook River | Fair | 81.0 ft | 2,300 | 1850 |
| HWY Jackson ST over Rr Mbta/bmrr | Fair | 37.1 ft | 2,300 | 1934 |
| HWY Walker ST over Rr Bmrr | Fair | 64.0 ft | 2,285 | 1910 |
| HWY Geo Brown ST over Rr Mbta/bmrr | Fair | 53.5 ft | 2,252 | 2005 |
| HWY Middlesex ST over Water Stony Brook | Fair | 26.9 ft | 2,208 | 1850 |
| HWY Oak ST over I 90 | Fair | 208.0 ft | 2,200 | 1957 |
| HWY Newhall ST over Water River Meadow Brook | Fair | 34.1 ft | 2,200 | 1949 |
| HWY Turnpike RD over Water Trapfall Brook | Fair | 25.9 ft | 2,100 | 1940 |
| HWY School ST over Rr Mbta/bmrr | Fair | 99.1 ft | 2,100 | 1898 |
| HWY Townsend RD over Water Mulpus Brook | Fair | 24.9 ft | 2,050 | 1961 |
| HWY Howard ST over Water River Meadow Brook | Fair | 41.0 ft | 1,810 | 1960 |
| HWY Ash ST over Water Weston Reservoir | Fair | 24.9 ft | 1,810 | 1902 |
| HWY Orchard RD over US 3 | Fair | 216.2 ft | 1,800 | 2004 |
| HWY Winter ST over I 90 | Fair | 228.0 ft | 1,700 | 1957 |
| HWY Concord ST over Water Sudbury River | Fair | 33.5 ft | 1,551 | 1920 |
| HWY Nashawtuc RD over Water Sudbury River | Fair | 53.5 ft | 1,550 | 1883 |
| HWY Old Stow RD over Rr Mbta/bmrr | Fair | 94.2 ft | 1,500 | 1930 |
| HWY Harwood AVE over I 495 | Fair | 280.8 ft | 1,400 | 1962 |
| HWY Washngton ST over Rr Mbta/csx | Fair | 90.9 ft | 1,300 | 1895 |
| HWY Overlook RD over Comb Sddle Hll Tl & Brk | Fair | 36.1 ft | 1,200 | 2002 |
| HWY Wedgewood DR over Water Brook | Fair | 39.4 ft | 1,200 | 1990 |
| HWY Grove ST over Rr Mbta/bmrr | Fair | 110.9 ft | 1,200 | 1891 |
| HWY Prescott ST over Water Nissitissit River | Fair | 65.9 ft | 1,200 | 1994 |
| HWY Sycamore ST over Rr Mbta/bmrr | Fair | 77.8 ft | 1,160 | 1902 |
| HWY Mill ST over Water Assabet River | Fair | 69.9 ft | 1,040 | 1937 |
| HWY Recreatn RD over St128 Service RD | Fair | 166.0 ft | 1,034 | 1950 |
| HWY Howe ST over Water Sudbury River | Fair | 105.0 ft | 1,000 | 1990 |
| HWY Wheeler RD over Water Elizabeth Brook | Fair | 20.0 ft | 1,000 | 1969 |
| HWY Lovell RD over Water Catacunemaug Brook | Fair | 66.6 ft | 905 | 1941 |
| HWY River ST over Water Fort Pond Brook | Fair | 51.8 ft | 800 | 1937 |
| HWY Glen AVE over Water River Meadow Brook | Fair | 39.0 ft | 800 | 1959 |
| HWY Rogers ST over Tr Green Line D | Fair | 39.0 ft | 766 | 1906 |
| HWY Mill RD over Water Beaver Brook | Fair | 23.6 ft | 750 | 1950 |
| HWY Henderson ST over Water Alewife Brook | Fair | 29.9 ft | 650 | 1913 |
| HWY Howe ST over Rr Mbta/csx | Fair | 90.9 ft | 600 | 1990 |
| HWY Stony Brk RD over Water Stony Brook | Fair | 40.0 ft | 600 | 1880 |
| HWY Arlington ST over ST 2 | Fair | 111.9 ft | 550 | 1950 |
| HWY Shore RD over Water Aberjona River | Fair | 40.0 ft | 524 | 1955 |
| HWY W Meadow RD over Water Willard Brook | Fair | 54.1 ft | 500 | 1996 |
| HWY Drake RD over Other Minuteman Bike Pth | Fair | 25.9 ft | 450 | 1995 |
| HWY Whitcomb AVE over ST 2 | Fair | 101.0 ft | 400 | 1950 |
| HWY Russell ST over I 495 | Fair | 275.9 ft | 400 | 1960 |
| HWY Broadway ST over Water Stony Brook | Fair | 23.0 ft | 400 | 1870 |
| HWY Fresh Pnd LN over Other Greenway M/u Path | Fair | 40.7 ft | 388 | 1927 |
| HWY Hrn Pd Bk RD over Water Horn Pond Brook | Fair | 30.8 ft | 388 | 1960 |
| I 90 Maint Ramp over I 90 | Fair | 206.0 ft | 300 | 1967 |
| HWY Woodland DR over Water Bayberry Hill Brk | Fair | 20.3 ft | 220 | 1970 |
| HWY Hosmer RD over Water Willard Brook | Fair | 25.6 ft | 200 | 1935 |
| HWY Brooks Cross over Water Mason Brook | Fair | 21.0 ft | 120 | 1986 |
| ST 30 WB Servce RD over Comb I 90 & Csx/mbta | Fair | 187.0 ft | 100 | 1964 |
| Range RD over Ponakin Brook Tributary | Fair | 21.3 ft | 6 | 2011 |
| I 495 over Water Mill Pond | Good | 35.1 ft | 116,909 | 1961 |
| US 3 over Water Moores Canal | Good | 28.9 ft | 106,700 | 1959 |
| I 95 Sb/st128 SB over ST 38 Wb/main ST | Good | 70.9 ft | 97,395 | 1949 |
| US 3 SB over Water Concord River | Good | 204.1 ft | 86,400 | 2004 |
| US 3 NB over HWY Dunstable RD | Good | 147.6 ft | 82,679 | 2004 |
| US 3 NB over Water Concord River | Good | 204.1 ft | 81,500 | 2004 |
| US 3 SB over HWY Dunstable RD | Good | 160.8 ft | 77,900 | 2004 |
| I 290 over Water Assabet River | Good | 29.5 ft | 75,828 | 1968 |
| ST 2 over I 95 /st128 | Good | 345.1 ft | 70,000 | 2016 |
| ST 16 Rev Bch PKWY over Comb Rivers Edge&mbta&o | Good | 206.4 ft | 68,300 | 2018 |
| ST 38 Main ST over Water Mystic River | Good | 90.9 ft | 67,900 | 1908 |
| I 90 WB over Water Mdc Res 3 | Good | 128.9 ft | 67,038 | 1957 |
| ST 16 Rev Bch PKWY over Water Malden River | Good | 334.6 ft | 65,285 | 2018 |
| I 495 SB over Water Concord River | Good | 186.7 ft | 64,400 | 2011 |
| I 495 SB over HWY Woburn ST | Good | 75.1 ft | 64,355 | 2011 |
| I 495 NB over HWY Woburn ST | Good | 74.8 ft | 64,233 | 2011 |
| I 495 SB over Rr Mbta/bmrr | Good | 87.9 ft | 64,100 | 2011 |
| I 495 NB over Rr Mbta/bmrr | Good | 87.9 ft | 61,500 | 2011 |
| I 495 NB over Water Concord River | Good | 186.7 ft | 61,200 | 2011 |
| US 3 NB over Water Shawsheen River | Good | 99.7 ft | 60,000 | 2004 |
| US 3 SB over Water Shawsheen River | Good | 99.7 ft | 60,000 | 2004 |
| US 3 SB over HWY Westford RD | Good | 137.1 ft | 60,000 | 2004 |
| I 495 SB over ST 2 | Good | 157.8 ft | 59,787 | 2015 |
| I 495 NB over ST 2 | Good | 157.8 ft | 59,444 | 2015 |
| ST 2 over Tr Mnuteman Bp | Good | 124.7 ft | 58,000 | 2004 |
| US 3 /st2&16/alwf over Rr Mbta/bmrr | Good | 346.1 ft | 55,603 | 1996 |
| I 90 EB over Water Mdc Res 3 | Good | 128.9 ft | 52,197 | 1957 |
| ST 9 /st30/wrcstr over Water Sudbury River | Good | 93.8 ft | 52,165 | 2009 |
| ST 9 Worcester ST over Water Lake Cochituate | Good | 53.5 ft | 52,165 | 2007 |
| US 3 NB over ST 62 Burlington RD | Good | 132.2 ft | 51,663 | 2004 |
| US 3 SB over HWY Main ST | Good | 107.3 ft | 51,000 | 2004 |
| US 3 SB over Rr Bmrr | Good | 65.0 ft | 50,638 | 2004 |
| US 3 NB over HWY Westford RD | Good | 137.1 ft | 50,100 | 2004 |
| US 3 NB over HWY Richardson RD | Good | 113.8 ft | 49,476 | 2004 |
| US 3 NB over Rr Bmrr | Good | 65.0 ft | 49,476 | 2004 |
| ST 3 NB over US 3 SB Connector | Good | 122.7 ft | 48,000 | 2004 |
| I 495 NB over Rr Mbta/bmrr | Good | 177.2 ft | 47,280 | 1959 |
| ST 2 over HWY Access Road | Good | 134.5 ft | 46,657 | 2016 |
| ST 28 Mcgrath HWY over HWY Gilman ST | Good | 46.6 ft | 46,200 | 2016 |
| I 495 SB over Rr Mbta/bmrr | Good | 180.1 ft | 43,698 | 1959 |
| ST 3 SB over US 3 SB Connector | Good | 137.5 ft | 42,200 | 2004 |
| ST 9 Worcester RD over Water Reservoir Outlet | Good | 102.4 ft | 41,604 | 2016 |
| US 3 SB over ST 62 Burlington RD | Good | 132.2 ft | 38,322 | 2004 |
| St128 Service RD over Water Charles River | Good | 206.0 ft | 35,400 | 1949 |
| St126 Concord ST over ST 9 Worcester RD | Good | 103.0 ft | 33,571 | 1931 |
| St129 Lowell ST over Water Maple Meadow Brook | Good | 36.1 ft | 28,600 | 2008 |
| HWY Broadway over Rr Mbta/bmrr | Good | 149.9 ft | 28,000 | 2020 |
| ST 62 Middlesex Av over Water Lubbers Brook | Good | 41.3 ft | 26,800 | 2022 |
| HWY Salem ST over Rr Mbta/bmrr | Good | 120.1 ft | 25,000 | 2021 |
| HWY SB Lowll Con over HWY Plain ST | Good | 148.0 ft | 24,827 | 2012 |
| ST 27 N Main ST over Rr Mbta/csx | Good | 83.0 ft | 23,000 | 1895 |
| I 495 Nb/st 2 Cd over ST 2 | Good | 161.4 ft | 22,628 | 2015 |
| ST 38 Main ST over Water Shawsheen River | Good | 72.5 ft | 21,500 | 1997 |
| HWY NB Lowll Con over HWY Plain ST | Good | 148.0 ft | 21,008 | 2012 |
| ST 2 A/mass AVE over ST 3 Memorial DR | Good | 54.1 ft | 20,560 | 1931 |
| St117 Fitchbrg Tpk over Water Sudbury River | Good | 91.9 ft | 19,400 | 2009 |
| HWY Pawtucket ST over Water Pawtucket Canal | Good | 123.7 ft | 18,800 | 2021 |
| HWY Speen ST over Water Fiske Pond | Good | 22.3 ft | 18,600 | 2011 |
| HWY School ST over Comb Kyan ST & Bmrr | Good | 116.1 ft | 18,491 | 1995 |
| HWY Landham RD over Water Hop Brook | Good | 38.1 ft | 18,100 | 2013 |
| HWY Mddlsex Tpk over Water Shawsheen River | Good | 62.3 ft | 18,000 | 2023 |
| St129 Billerica RD over Water River Meadow Brook | Good | 32.8 ft | 17,500 | 2022 |
| HWY Mt Wayte AVE over Water Eames Brook | Good | 21.0 ft | 14,700 | 1947 |
| US 20 Bostn Pst RD over Water Sudbury River | Good | 112.2 ft | 14,603 | 2009 |
| ST 4 NB over US 3 Nb/sb | Good | 164.0 ft | 14,416 | 2004 |
| HWY Winter ST over Rr Mbta/csx | Good | 73.2 ft | 14,300 | 2017 |
| HWY Union AVE over Water Sudbury River | Good | 59.1 ft | 14,143 | 1985 |
| HWY Boylston ST over Rr Bmrr | Good | 56.8 ft | 14,000 | 1999 |
| ST 4 Nashua RD over Water Concord River | Good | 157.8 ft | 13,600 | 2008 |
| HWY Univrsty AVE over Water Merrimack & Canal | Good | 534.8 ft | 13,500 | 2014 |
| HWY Broad ST over Water Assabet River | Good | 97.4 ft | 13,000 | 2005 |
| ST 27 /st62/walthm over Water Assabet River | Good | 114.8 ft | 12,574 | 2013 |
| HWY Vfw HWY over Water Beaver Brook | Good | 131.6 ft | 12,262 | 2022 |
| HWY Central ST over Water Lwr Pawtucket Cnl | Good | 89.9 ft | 12,184 | 1835 |
| St135 Union ST over Water Sudbury River | Good | 64.0 ft | 11,728 | 2012 |
| ST 30 Pleasant ST over Water Stoney Brook | Good | 36.1 ft | 11,137 | 1895 |
| ST 85 Washngton ST over Water Assabet River | Good | 89.9 ft | 10,800 | 2017 |
| HWY Swanton ST over Water Aberjona River | Good | 26.6 ft | 10,344 | 2021 |
| ST 62 Park ST over Water Ipswich River | Good | 45.6 ft | 10,000 | 1903 |
| HWY Page RD over Water Shawsheen River | Good | 37.7 ft | 9,900 | 2009 |
| ST 85 River ST over Water Sudbury River | Good | 59.7 ft | 9,501 | 2014 |
| HWY Lake ST over Water Horn Pond Brook | Good | 25.9 ft | 9,500 | 2024 |
| HWY Walden ST over Rr Mbta/bmrr | Good | 93.8 ft | 9,181 | 2009 |
| HWY Broadway over Water Pawtucket Canal | Good | 112.2 ft | 9,000 | 1852 |
| HWY Herbert ST over Water Beaver Dam Brook | Good | 31.8 ft | 8,300 | 2009 |
| HWY Marion ST over Rr Mbta/csx | Good | 85.0 ft | 8,300 | 1896 |
| HWY Main ST over Water Catacunemaug Brook | Good | 23.3 ft | 8,180 | 1900 |
| HWY Central ST over Water Sudbury River | Good | 210.0 ft | 8,000 | 1920 |
| ST 62 Main ST over Water Assabet River | Good | 110.9 ft | 7,969 | 2009 |
| HWY Main ST over Water Sudbury River | Good | 76.8 ft | 7,950 | 1878 |
| I 90 Ramp R over Other Mwra Aqueduct | Good | 27.9 ft | 7,800 | 2017 |
| I 90 WB Ramp Off over HWY Access RD | Good | 41.3 ft | 7,371 | 1964 |
| HWY Franklin ST over Water Sudbury River | Good | 60.0 ft | 6,700 | 1934 |
| HWY Pine ST over Water Assabet River | Good | 74.1 ft | 6,600 | 2009 |
| HWY Taylor ST over ST 2 | Good | 179.1 ft | 6,336 | 2006 |
| HWY Middlesex Tp over Water Vine Brook | Good | 24.0 ft | 6,207 | 1998 |
| HWY Myst Val Pky over Water Aberjona River | Good | 58.1 ft | 6,206 | 1896 |
| HWY Phineas ST over Water Beaver Brook | Good | 138.8 ft | 6,100 | 1995 |
| HWY Lowell ST over Rr Mbta/bmrr | Good | 85.0 ft | 6,077 | 2006 |
| HWY Eames ST over Rr Mbta/bmrr | Good | 54.1 ft | 5,800 | 1994 |
| St225 Pleasant ST over Water Stony Brook | Good | 24.0 ft | 5,705 | 2005 |
| HWY Canal Street over Water Merrimack Canal | Good | 52.8 ft | 5,700 | 1986 |
| HWY Whitney ST over Rr Csx | Good | 27.9 ft | 5,700 | 2008 |
| HWY Market ST over Water Western Canal | Good | 44.9 ft | 5,300 | 2019 |
| HWY Boundary ST over Water Assabet River | Good | 63.3 ft | 4,857 | 2010 |
| HWY South ST over Water Squannacook River | Good | 99.7 ft | 4,600 | 2004 |
| HWY Fountain ST over Rr Mbta/csx | Good | 122.0 ft | 4,500 | 2001 |
| HWY Gray ST over Rr Mbta/bmrr | Good | 125.0 ft | 4,300 | 1996 |
| HWY Martin ST over Water Fort Pond Brook | Good | 21.0 ft | 4,267 | 1965 |
| HWY Mineral ST over Rr Mbta/bmrr | Good | 119.4 ft | 4,100 | 1997 |
| HWY Taylor ST over I 495 | Good | 302.2 ft | 4,008 | 2015 |
| HWY Dutton RD over Water Hop Brook | Good | 24.3 ft | 4,000 | 2021 |
| HWY Cambrdge Tpk over Water Mill Brook | Good | 42.3 ft | 3,900 | 2020 |
| ST 2 A/st110/king over I 495 | Good | 287.1 ft | 3,845 | 1960 |
| HWY Mill ST over Water Nissitissit River | Good | 84.6 ft | 3,600 | 2012 |
| HWY River ST over Water Fort Pond Brook | Good | 24.9 ft | 3,500 | 1981 |
| HWY Nichols ST over Rr Mbta/bmrr | Good | 61.0 ft | 3,400 | 1968 |
| HWY Canal ST over Water Pawtucket Canal | Good | 91.5 ft | 3,200 | 2019 |
| HWY Rindge RD over Water Falulah Brook | Good | 20.0 ft | 3,103 | 1997 |
| HWY River ST over Water Stony Brook | Good | 31.8 ft | 3,100 | 1997 |
| HWY Beaver Bk RD over Water Beaver Brook | Good | 38.1 ft | 2,929 | 2023 |
| HWY Pawtucket ST over Water Northern Canal | Good | 156.5 ft | 2,900 | 2022 |
| HWY Florida RD over Water Assabet River | Good | 73.2 ft | 2,850 | 2023 |
| HWY Woerd AVE over Water Charles River | Good | 48.6 ft | 2,760 | 2021 |
| HWY Lundberg ST over Rr Mbta/bmrr | Good | 123.0 ft | 2,750 | 1922 |
| HWY Main ST over Water Salmon Brook | Good | 22.0 ft | 2,700 | 2014 |
| ST 31 Greenvlle RD over Water Trapfall Brook | Good | 20.7 ft | 2,600 | 1981 |
| HWY Fruit ST over Comb Mbta/csx & Sudbury | Good | 189.6 ft | 2,600 | 2023 |
| HWY Wheeler RD over Water Willard Brook | Good | 40.0 ft | 2,597 | 2011 |
| HWY Wetherbee ST over Water Nashoba Brook | Good | 47.9 ft | 2,586 | 1997 |
| HWY Parker ST over Water Fort Pond Brook | Good | 23.0 ft | 2,400 | 2018 |
| HWY Cooper ST over Rr Mbta/bmrr | Good | 70.9 ft | 2,069 | 1919 |
| HWY High ST over Rr Mbta/csx | Good | 274.3 ft | 2,000 | 1999 |
| HWY Catacnemg RD over Water Catacunemaug Brook | Good | 23.0 ft | 2,000 | 2002 |
| HWY Pelham Is RD over Water Sudbury River | Good | 62.7 ft | 1,900 | 2012 |
| HWY Turnpike RD over Water Squannacook River | Good | 73.8 ft | 1,699 | 1999 |
| HWY Lincoln ST over Comb Csx & Quebec ST | Good | 172.6 ft | 1,681 | 2002 |
| HWY Recreatn RD over I 95 /st128 | Good | 202.8 ft | 1,681 | 2009 |
| HWY Cochtuate ST over Other Cochituate Rail Tr | Good | 38.1 ft | 1,552 | 1896 |
| HWY Houghton ST over Water Assabet River | Good | 84.0 ft | 1,500 | 2014 |
| HWY Meriam ST over Rr Mbta/bmrr | Good | 45.9 ft | 1,422 | 2001 |
| HWY Robin Hll ST over Water Assabet River | Good | 75.1 ft | 1,300 | 2010 |
| HWY Wedgewood DR over Water Brook | Good | 26.9 ft | 1,200 | 2000 |
| HWY Elm ST over Water Millham Brook | Good | 22.0 ft | 1,034 | 2015 |
| HWY Access RD over Water Stony Brook | Good | 33.1 ft | 1,034 | 2013 |
| HWY Danforth ST over Water Sudbury River | Good | 132.9 ft | 1,000 | 1982 |
| HWY Canal ST over Water Hamilton Canal | Good | 99.4 ft | 1,000 | 2012 |
| HWY Town Farm LN over Rr Mbta/bmrr | Good | 34.1 ft | 800 | 1925 |
| HWY Longley RD over Water Mulpus Brook | Good | 54.1 ft | 800 | 2021 |
| HWY Cedar ST Ext over Water Sudbury River | Good | 44.6 ft | 776 | 2002 |
| HWY Peabody ST over Other Dem Rail Trail | Good | 20.0 ft | 714 | 2002 |
| HWY Jefferson ST over Water Western Canal | Good | 54.1 ft | 700 | 1850 |
| HWY Shaker RD over Water Catacunemaug Brook | Good | 22.0 ft | 600 | 2011 |
| HWY W Meadow RD over Water Locke Brook | Good | 30.5 ft | 516 | 2021 |
| HWY Russells Way over Water Turtle Crossing | Good | 36.1 ft | 500 | 1997 |
| HWY Russells Way over Water Gilson Brook | Good | 20.0 ft | 500 | 1997 |
| HWY Wiley ST over Water Mill River | Good | 27.9 ft | 475 | 1971 |
| HWY Old Swmll RD over Water Deer Brook | Good | 23.0 ft | 400 | 2000 |
| HWY Fox Hllow RD over Water Wetland | Good | 20.3 ft | 390 | 2015 |
| HWY Dexter RD over Water Laundry Brook | Good | 26.9 ft | 388 | 1898 |
| HWY Shore Drive over Water Freeman Lake Splwy | Good | 20.0 ft | 300 | 1975 |
| HWY Bennetts Crs over Water Bennetts Brook | Good | 20.7 ft | 200 | 1991 |
| HWY Pingry Way over Water Bennetts Brk Trib | Good | 21.3 ft | 200 | 1991 |
| HWY White Pnd RD over Water Assabet River | Good | 104.7 ft | 200 | 2007 |
| HWY Vinton Pd RD over Water Pearl Hill Brook | Good | 30.8 ft | 200 | 2009 |
| HWY Mill ST over Water Shawsheen River | Good | 48.9 ft | 170 | 1998 |
| HWY Millers Farm over Water Unknown | Good | 21.0 ft | 150 | 1995 |
| HWY Morton ST over Rr Bmrr | Good | 83.3 ft | 130 | 2010 |
| HWY Hillside DR over Water Deer Brook | Good | 23.0 ft | 100 | 2000 |
| HWY Danl Shays over Water Brook | Good | 23.6 ft | 100 | 2000 |