| I 295 NB over Back Bay (atlantic O) | 1960 | 42,190 | Fair |
| I 295 SB over US1 Forest Ave | 1973 | 37,920 | Fair |
| I-95 over Nonesuch River | 1947 | 37,280 | Good |
| I 295 SB over Ptrr | 1972 | 36,970 | Fair |
| I 295 SB over St James Street | 1973 | 36,970 | Fair |
| I 295 SB over St John Steet | 1972 | 36,970 | Fair |
| I 295 NB over Fore River | 1973 | 36,530 | Fair |
| I 295 SB over Preble Street Extension | 1973 | 36,310 | Fair |
| I 295 SB over Fore River | 1973 | 35,840 | Fair |
| I 295 SB over Congress & Park Streets | 1973 | 35,330 | Fair |
| I 295 NB over US RTE1(FOREST Ave) | 1973 | 35,000 | Fair |
| I 295 NB over Ptrr | 1972 | 34,780 | Fair |
| I 295 NB over St James Street | 1973 | 34,780 | Fair |
| I 295 NB over St John Street | 1972 | 34,780 | Fair |
| I 295 NB over Cnrr | 1954 | 33,260 | Fair |
| I 295 NB over Kensington Street | 1954 | 33,260 | Fair |
| I 295 SB over Ptrr | 1974 | 32,110 | Fair |
| I 295 NB over Preble Street Extension | 1973 | 30,300 | Fair |
| I 295 NB over Rte 26 (wash Ave) N B | 1987 | 30,260 | Fair |
| I 295 NB over Sherwood Street | 1954 | 30,260 | Fair |
| I 295 NB over Franklin Street | 1974 | 30,150 | Fair |
| I 295 NB over Route 9 (westbrook St.) | 1969 | 29,740 | Fair |
| I 295 NB over Congress St | 1973 | 29,400 | Fair |
| I 295 NB over Fore River Pky | 1974 | 29,400 | Fair |
| I 295 NB over Ptrr | 1974 | 29,400 | Fair |
| I 295 SB over Fore River Parkway | 1974 | 29,400 | Fair |
| I 295 SB over Franklin Street | 1974 | 29,050 | Fair |
| I 295 SB over Route 9 (westbrook St.) | 1969 | 28,580 | Fair |
| I 295 NB over Cousins River | 1986 | 27,700 | Fair |
| I 295 NB over Route 88 (lafayette St) | 1959 | 27,320 | Poor |
| I 295 NB over Royal River | 1959 | 27,320 | Fair |
| I 295 SB over Cousins River | 1986 | 27,170 | Fair |
| I 295 SB over Route 88 (lafayette St) | 1959 | 27,080 | Poor |
| I 295 SB over Royal River | 1959 | 27,080 | Fair |
| I 295 NB over Presumpscot River | 1960 | 27,010 | Fair |
| I 295 NB over Veranda St & US 1 | 2022 | 27,010 | Good |
| I-95(SB) over Stroudwater River | 1956 | 26,740 | Fair |
| I 295 NB over Mcrr | 1951 | 25,640 | Fair |
| I 295 SB over Presumpscot River | 1960 | 25,630 | Fair |
| I-95 (NB) over Stroudwater River | 1956 | 25,070 | Fair |
| I-95 SB over Mcrr (SB) | 1956 | 24,780 | Fair |
| Congress St over Fore River | 1937 | 24,598 | Fair |
| I 295 SB over Route US 1 NB & SB | 2024 | 24,230 | Good |
| Congress St over Stroudwater River | 1989 | 24,013 | Poor |
| I 295 NB over Route US 1 NB &SB | 2024 | 23,450 | Good |
| I-95 over Mcrr (NB) | 1956 | 23,100 | Fair |
| Route 196 over Androscoggin River | 1997 | 22,360 | Fair |
| US 1 over Dunstan River | 2004 | 22,357 | Good |
| I-95 (SB) over Warren Avenue (SB) | 2021 | 21,350 | Good |
| I-95(SB) over Forest Avenue | 1956 | 21,350 | Fair |
| I-95(SB) over Riverside Street | 1956 | 21,350 | Fair |
| West Gray Road over I-95 | 1956 | 20,240 | Fair |
| I-95 (NB) over Riverside St | 1956 | 19,720 | Fair |
| I-95 (NB) over Warren Ave | 2021 | 19,720 | Good |
| I-95(NB) over FOREST AVE/Rt 302 | 1956 | 19,720 | Fair |
| US 1 SB over New Meadows River | 1966 | 17,110 | Fair |
| I-95(SB) over Presumpscot River | 1956 | 17,050 | Fair |
| Brighton Av over Capisic Brook | 2000 | 16,937 | Good |
| Main St over Androscoggin River | 1931 | 16,790 | Poor |
| I-95 (NB) over Presumspcot River | 1955 | 16,740 | Fair |
| Mallett Dr over I 295 NB & SB | 2025 | 16,596 | Good |
| US 1 NB over New Meadows River | 1966 | 16,567 | Fair |
| Washington Av over Fall Brook | 1998 | 16,552 | Good |
| Cumberland St over Presumpscot River | 2014 | 16,440 | Good |
| Cumberland St over Presumpscot River | 2014 | 16,440 | Good |
| I-295 Northbound over Androscoggin River | 1971 | 16,310 | Fair |
| Payne Rd over Nonesuch River | 1946 | 16,250 | Fair |
| I 295 SB over Androscoggin River | 1971 | 15,640 | Fair |
| Ossipee Trl over Little River | 1932 | 15,590 | Fair |
| Running Hill Rd over I-95 | 1987 | 15,521 | Fair |
| Casco Bay Bridge over Fore River | 1998 | 14,893 | Fair |
| I 295 SB over State Route 703 | 1971 | 14,770 | Fair |
| I-295 SB over I-95 | 1972 | 14,770 | Fair |
| I295 over Payne Rd over Payne Road (SB) | 1972 | 14,770 | Fair |
| Broadway over S.R. 703 | 1955 | 14,700 | Fair |
| I-95 (SB) over Eagles Nest Road | 1956 | 14,400 | Fair |
| I-95 SB over Hunts Hill Road | 1956 | 14,400 | Fair |
| Skyway Drive over I-95 | 1998 | 14,199 | Fair |
| Black Point Rd over Boston and Maine RR | 1996 | 14,080 | Good |
| Black Point Rd over Nonesuch River | 1995 | 14,080 | Fair |
| Tandberg Trl over Ditch Brook | 1959 | 14,042 | Poor |
| I-95 (NB) over Hunts Hill Rd | 1956 | 14,020 | Fair |
| I-95 (NB) over Upper Marginal Way | 1956 | 14,020 | Fair |
| I-95 over Piscataqua Tributary | 1956 | 14,020 | Fair |
| I-95 over Piscatiqua River STR#28 | 1956 | 14,020 | Fair |
| I-95 over Piscatiqua River Str #31 | 1956 | 14,020 | Good |
| Bucknam Rd over I295 NB & SB-from plans | 2022 | 14,010 | Good |
| Roosevelt Trl over Pleasant River | 1989 | 13,750 | Poor |
| Route 1 over Route 115 (main St) | 2018 | 13,670 | Good |
| Bridgton Rd over Mill Brook | 2011 | 13,540 | Good |
| Cummings (spring) over I-95 | 2019 | 13,480 | Good |
| South St over Stroudwater River | 1951 | 13,270 | Fair |
| Fore River Pky over Mercy Access Rd. GRS | 2005 | 13,170 | Good |
| Main St over Ptrr | 1993 | 13,140 | Fair |
| Lower Main St over M C RR | 1936 | 12,879 | Poor |
| Route 1 over Presumpscot*river | 2014 | 12,680 | Good |
| SR 25 over I-95 | 2001 | 12,602 | Good |
| Gorham Rd/rte 114 over (over) I-295 SB Ramp | 1971 | 12,563 | Fair |
| Gorham Rd/rte 114 over I-95 | 1971 | 12,563 | Fair |
| Roosevelt Trl over Chutes River | 2012 | 12,150 | Good |
| Gray Rd over Mcrr & Presumpscot River | 2011 | 12,130 | Good |
| Auburn St over I-495 | 1956 | 12,062 | Fair |
| Ossipee Trl over Douglas Brook | 2019 | 11,922 | Good |
| Spring St over Stroudwater River | 1916 | 11,740 | Fair |
| US 1 over Nonesuch River | 1986 | 11,598 | Fair |
| Pleasant Hill Rd over Boston & Maine RR | 1998 | 11,580 | Good |
| Brighton Ave over I-95 | 2004 | 11,514 | Good |
| Congress St/rte 22 over I-95 | 2007 | 11,350 | Fair |
| Roosevelt Trl over Thomas Pond Outlet | 1958 | 11,290 | Fair |
| Veterans Bridge over I295 & NB US1 to 295 NB | 1974 | 11,240 | Fair |
| I295 over Payne Road | 1972 | 11,200 | Fair |
| Ramp on From Scarb over Broadway | 1970 | 11,040 | Fair |
| Portland Rd over Stevens Brook | 1970 | 10,680 | Fair |
| Exit-28 SB on over I-295 NB & SB | 1972 | 10,630 | Fair |
| Bridge St over Presumpscot River | 2016 | 10,340 | Good |
| Route 1 over Interstate 295 NB & SB | 1958 | 10,320 | Poor |
| Lewiston Rd over Collyer Brook | 1922 | 10,140 | Poor |
| Ramp on From Westb over Westbrook Street | 2014 | 10,120 | Good |
| Forest Av over Presumpscot River | 1994 | 9,955 | Fair |
| SR 9 (middle Road) over I-495 | 1956 | 9,899 | Fair |
| Veterans Brg RT1 over Fore River | 2012 | 9,869 | Good |
| I 295 NB over State Route 703 | 1971 | 9,830 | Fair |
| I-95 SB over Royal River | 1956 | 9,830 | Fair |
| I-95(SB) over Bald Hill Rd | 1956 | 9,830 | Fair |
| Chadbourne Rd over Canal Outlet of Sebago L | 1987 | 9,584 | Fair |
| Tandberg Trl over Presumpscot Rv | 1987 | 9,584 | Fair |
| Route 1 over Cousins River | 1930 | 9,550 | Poor |
| Sca-conn SB over State Route 703 | 1971 | 9,510 | Fair |
| I-95 (NB) over Bald Hill Rd | 1956 | 9,460 | Fair |
| I-95 (NB) over Royal River | 1956 | 9,460 | Fair |
| Sca-conn NB over Nonesuch River | 1968 | 9,410 | Fair |
| Sca-conn NB over State Route 703 | 1971 | 9,410 | Fair |
| Sca-conn NB over US 1 Southbound | 1968 | 9,410 | Fair |
| Riverside/larrabee over I-95 | 2012 | 9,351 | Good |
| Desert Rd over I 295 NB & SB | 2025 | 9,251 | Good |
| Maine St over US 1 N & SB | 1961 | 9,185 | Poor |
| Chadbourne Rd over M C RR | 2011 | 9,150 | Good |
| Roosevelt Trl over Crooked River | 1958 | 8,730 | Fair |
| Bernard P Rines Hw over Gully Brook | 2008 | 8,716 | Good |
| Bernard P Rines Hw over Tributary of Gully Brook | 2008 | 8,716 | Good |
| Rte 196 to US-1 NB over Route US1 | 1997 | 8,514 | Good |
| Saco St over Stroudwater River | 1966 | 8,230 | Fair |
| Deering Av over I-295 NB & SB + Ptrr | 1971 | 8,051 | Fair |
| Ramp Off to Scarbo over Broadway | 1970 | 7,840 | Fair |
| Ramp Off to Scarbo over Interstate 295 NB & SB | 1970 | 7,840 | Fair |
| Payne Road over I-95 | 2005 | 7,626 | Good |
| Main St over Presumpscot River | 2005 | 7,591 | Good |
| Gray Rd over Piscataqua River | 1939 | 7,550 | Fair |
| Westbrook St over I-95 | 2005 | 7,300 | Good |
| River Rd over Colley Wright Brook | 2020 | 7,186 | Good |
| Wash Av SB over I295NB&SB&MARGINAL Way | 1990 | 7,110 | Fair |
| 1-495 (EB) over Presumpscot River / Fs | 1956 | 7,090 | Fair |
| I-495 (WB) over Mcrr | 1956 | 7,090 | Fair |
| Harpswell Islands over Tidal Passage | 1982 | 7,038 | Fair |
| Mosher Rd over Little River | 2020 | 6,960 | Good |
| Shaker Rd over I-95 | 1956 | 6,960 | Good |
| Route 1 over Royal River | 1948 | 6,729 | Fair |
| Lunt Road over I 295 NB & SB | 2019 | 6,700 | Good |
| River Rd over Pleasant River | 1947 | 6,683 | Poor |
| Scarborough Inter over I-95 | 1992 | 6,660 | Fair |
| Holmes Road over I-95 | 2000 | 6,638 | Good |
| Falmouth Road over East Br Piscataqua River | 1998 | 6,620 | Fair |
| Capisic St over Capisic Pond Outlet | 2003 | 6,578 | Good |
| Falmouth Rd/fal Sp over I-495 | 1956 | 6,468 | Fair |
| Allen Ave Ext. over Presumpscot River | 1995 | 6,420 | Fair |
| Gray Rd over Little River | 2017 | 6,340 | Good |
| Portland Rd over Pleasant River | 1922 | 6,340 | Fair |
| Federal Street over State of Maine RR | 1992 | 6,246 | Fair |
| W. Falmouth/cumber over I-95 | 1956 | 5,870 | Fair |
| Gray Rd over Piscataqua Rv | 2008 | 5,863 | Good |
| Washington Av over Marginal Way | 1960 | 5,790 | Fair |
| I 495 EB over Cnrr | 1990 | 5,770 | Fair |
| I 495 EB over I 295 NB & SB | 1960 | 5,770 | Fair |
| I-495 (EB) over Mcrr | 1956 | 5,770 | Fair |
| I-495 (WB) over Presumscot Riv/falmouth | 1956 | 5,770 | Fair |
| I-495 over Lambert St/falmouth Spur | 1956 | 5,770 | Fair |
| Old Bath Road over US 1 NB & SB | 1964 | 5,553 | Fair |
| Poland Spring Rd over Crooked River | 1952 | 5,450 | Fair |
| S Portland Inter over I-95 | 2022 | 5,320 | Good |
| Longwoods Rd over E Br Piscataqua R | 1966 | 5,289 | Fair |
| Harrison Rd over Rogers Brook | 1965 | 5,260 | Fair |
| Desert Rd over Mcrr | 1985 | 5,130 | Fair |
| Pine Point Rd over B&m RR & Snow Canning Rd | 2016 | 5,075 | Good |
| Broadturn Road over I-95 | 1999 | 4,951 | Fair |
| Falmouth Rd over Piscataqua River | 2008 | 4,940 | Good |
| Durham Rd over Mill Pond Stream | 1931 | 4,921 | Fair |
| Main St over Royal River | 1930 | 4,910 | Poor |
| Middle Rd over Presumpscot River | 1951 | 4,818 | Fair |
| Leighton Rd over Piscataqua River | 1957 | 4,760 | Fair |
| Pequawket Trl over Dug Hill Brook | 1939 | 4,732 | Fair |
| Route 35 & 117 over Crystal Lake Outlet | 1932 | 4,727 | Fair |
| Pequawket Trl over Quaker Brook | 1938 | 4,700 | Poor |
| Fort Hill Rd over Little River | 1992 | 4,605 | Fair |
| Huston Rd over N Branch Little River | 1966 | 4,553 | Poor |
| Bracket Rd over Stroudwater River | 1962 | 4,528 | Fair |
| Bracket Rd over Indian Camp Brook | 1992 | 4,440 | Good |
| E Bridge St over Mill Brook | 2011 | 4,321 | Good |
| Route 1 over 295/NB Ramp 295 to 1/PTR | 1974 | 4,280 | Poor |
| Bowery Beach Rd over Spurwink River | 1988 | 4,200 | Good |
| Fore River Pky over Future WYE Railroad/ ped | 2005 | 4,090 | Good |
| Fore River Pky over Mountain division RR | 2005 | 4,090 | Good |
| Pequawket Trl over Page Brook | 2020 | 4,050 | Good |
| Richville Rd over Rich Mill Brook | 2018 | 4,020 | Good |
| Falmouth Rd over Pleasant River | 1962 | 4,000 | Poor |
| Pequawket Trl over Breakneck Brook | 1958 | 3,969 | Fair |
| N High St over Moose Pond | 1952 | 3,967 | Fair |
| Veranda St over C N R R | 2009 | 3,960 | Good |
| Bridgton Rd over Bear River | 1965 | 3,888 | Fair |
| Leighton Rd over I-95 | 1956 | 3,850 | Fair |
| Gray Rd over Pleasant River | 1946 | 3,823 | Fair |
| Main St over Mcrr | 2001 | 3,760 | Good |
| Mountain Rd over I-95 | 1956 | 3,740 | Fair |
| Forest St over Westbrook Arterial | 1976 | 3,720 | Fair |
| Main St over Mcrr Branch | 1930 | 3,700 | Poor |
| US-1 SB to Cooks over US 1 & US1 on Ramp | 1964 | 3,653 | Fair |
| Blackstrap Rd over I-95 | 1956 | 3,647 | Fair |
| Blackstrap Rd over Presumpscot River | 1961 | 3,647 | Fair |
| Sandy Creek Rd over Willette Brook | 2000 | 3,640 | Fair |
| Norway Rd over Woodsum River | 1979 | 3,606 | Poor |
| Bonny Eagle Rd over Ely Channel Saco River | 1990 | 3,600 | Fair |
| Norway Rd over Crooked River | 1986 | 3,570 | Fair |
| Depot Rd over Saco River | 1997 | 3,530 | Fair |
| Tuttle Road over I-295 Rte US 1 & M C RR | 1958 | 3,497 | Poor |
| Durham Rd over Exit-28 SB on | 1973 | 3,421 | Fair |
| Durham Rd over I-295 | 1957 | 3,421 | Poor |
| Willett Rd over Willett Brook | 2003 | 3,310 | Good |
| Blackstrap Road over I-95 | 1956 | 3,133 | Fair |
| Beechridge Rd over Nonesuch River | 2000 | 3,005 | Good |
| US 1 NB over I295 & Wash Ave NB & SB | 1987 | 3,000 | Fair |
| River Road over I-295 NB & SB | 1973 | 2,960 | Fair |
| Harpswell Islands over the Gurnet (tidal Pas.) | 1934 | 2,930 | Good |
| Austin St over Mill Brook | 1960 | 2,851 | Fair |
| Elmwood Rd over E Branch Royal River | 2003 | 2,850 | Good |
| Windam Center Rd over Pleasant River | 1950 | 2,611 | Fair |
| E Elm St over Royal River | 2014 | 2,580 | Good |
| Hillside Rd over Maine Central RR | 1984 | 2,530 | Fair |
| North Rd over Chandler R. (E Br Royalr | 1963 | 2,480 | Fair |
| Depot Rd over Royal River | 1963 | 2,422 | Fair |
| Ramp on From Park over St James Street | 1973 | 2,300 | Fair |
| Mallison Falls Rd over Presumpscot River | 1969 | 2,284 | Fair |
| Mountain Rd over Ewing Narrows | 1974 | 2,280 | Fair |
| Whites Bridge Rd over Sebago Lake | 2010 | 2,275 | Good |
| Gilman Rd over Casco Bay | 1955 | 2,240 | Fair |
| Ramp on Off over Route 1 | 1955 | 2,240 | Fair |
| Flaggy Meadow Rd over Bernard P Rines Hwy | 2008 | 2,239 | Good |
| E Main St over Route US 1 NB & SB | 1948 | 2,214 | Poor |
| Sebago Rd over Muddy River | 2016 | 2,190 | Good |
| Intervale Rd over Royal River | 1979 | 2,146 | Fair |
| Spring Street over State of Maine Railroad | 2000 | 2,110 | Good |
| Harpswell Island R over Wills Strait (atl Ocean) | 1926 | 2,038 | Fair |
| Water Street over US 1 NB & SB | 2003 | 2,023 | Good |
| Windham Center Rd over Presumpscot River | 1970 | 1,967 | Fair |
| Windham Center Rd over Presumpscot River | 1970 | 1,967 | Fair |
| Beech Ridge Road over I-95 | 2000 | 1,940 | Good |
| Bayview St over Interstate 295 NB & SB | 1962 | 1,900 | Fair |
| Elmwood Road over Chandler River | 1999 | 1,890 | Fair |
| US Route 1 Hwy Ram over Ramp Off to Veterans Bri | 1954 | 1,849 | Fair |
| Veterans Bridge over PTRR & RAMP295NBtoUS1NB | 1954 | 1,849 | Fair |
| Chas Loring SB over Washington Ave NB & SB | 1987 | 1,830 | Fair |
| S Bridgton Rd over Willet Stream | 1949 | 1,817 | Fair |
| Intervale Rd over Cnrr (st Lawrence&atlant | 1993 | 1,755 | Good |
| Ray St over Fall Brook | 2005 | 1,750 | Good |
| Johnson Road over I 295 NB & SB | 1957 | 1,728 | Poor |
| Memorial Hwy over Mcrr | 1989 | 1,710 | Fair |
| Memorial Hwy over Royal River | 1953 | 1,710 | Fair |
| Weymouth Rd over Collyer Brook | 2009 | 1,651 | Good |
| Weymouth Rd over I-95 | 1956 | 1,651 | Good |
| Exit-28 SB Off over I-295 N.B. & S. B. | 1990 | 1,650 | Fair |
| Bald Hill Rd over Royal River | 2004 | 1,640 | Good |
| Center Road over I-95 | 1956 | 1,610 | Fair |
| Old County Rd over I 295 NB & SB | 1985 | 1,610 | Fair |
| Old Blue Point R over Foxwell Brook | 1997 | 1,557 | Good |
| Morse Rd over Royal River | 1990 | 1,530 | Good |
| Hallowell Rd over E Branch Royal River | 2010 | 1,520 | Fair |
| Westbrook Inter. over I-95 | 2001 | 1,500 | Fair |
| Granite St over M C RR | 1999 | 1,440 | Fair |
| US-1 NB to Rte 196 over Ramp B | 1997 | 1,404 | Fair |
| State Park Rd over Crooked River | 1937 | 1,367 | Fair |
| Center Rd over Pleasant River | 2012 | 1,300 | Good |
| New Gloucester Rd over Maine Centrl Railroad | 1911 | 1,280 | Fair |
| New Gloucester Rd over Royal River | 1926 | 1,280 | Fair |
| Falmouth Spur Intr over I-95 | 1956 | 1,260 | Fair |
| Hodsdon Road over E Branch Royal River | 1956 | 1,243 | Fair |
| Dutton Hill Rd over I-95 | 1956 | 1,240 | Good |
| Mill Rd over Royal River | 1969 | 1,240 | Fair |
| Mill St over Panther Run | 1949 | 1,187 | Fair |
| Sebago Rd over Quaker Brook | 1939 | 1,180 | Fair |
| Andrews Ave over Casco Bay | 1955 | 1,129 | Fair |
| Kansas Rd over Stevens Brook | 1975 | 1,080 | Fair |
| Snow Hill Road over I-95 | 1956 | 1,070 | Fair |
| State Park Rd over Songo River | 1926 | 1,011 | Poor |
| Lawrence Rd over Pleasant River | 2015 | 903 | Good |
| Bolsters Mills Rd over Crooked River | 1949 | 860 | Fair |
| Bridge St over Royal River | 1948 | 826 | Fair |
| Files Rd over Breakheart Brook | 2002 | 800 | Fair |
| Duck Pond Rd over Mill Brook | 2013 | 790 | Good |
| Poland Range Rd over Chandler Brook | 1965 | 730 | Poor |
| Mitchell Hill Rd over Nonesuch River | 1990 | 673 | Poor |
| Westbrook St over Stroudwater Rv | 1983 | 646 | Fair |
| Mayall Rd over I-95 | 1956 | 639 | Good |
| Pope Rd over Pleasant River | 1957 | 639 | Fair |
| Lawrence Rd over E Branch Chandler River | 1999 | 632 | Good |
| Woodsville Road over East Br Piscataqua River | 1952 | 620 | Fair |
| Lawrence Rd over Chandler Brook | 1982 | 614 | Fair |
| Bennett Rd over I-95 | 1956 | 581 | Fair |
| Sligo Rd over Main Central Railroad | 2000 | 580 | Good |
| Beach St over Ptrr (abandoned) | 1900 | 577 | Fair |
| Penney Rd over Royal River | 1985 | 540 | Good |
| Penny Rd over Maine Central Railroad | 2002 | 540 | Good |
| Smith Av over Stevens Brook | 1935 | 528 | Fair |
| Hurricane Road over I-95 | 1956 | 506 | Fair |
| Hurricane Road over Piscataqua River | 1956 | 506 | Fair |
| Field Road over East Branch Piscataqua | 1999 | 505 | Good |
| Talbot Rd over Tidal Passage | 2005 | 480 | Good |
| Cobbs Bridge Road over Royal River | 1934 | 474 | Fair |
| Depot Street over Stevens Brook | 1947 | 435 | Poor |
| Merrill Rd over Collyer Brook | 1992 | 419 | Fair |
| Chandler Mill Rd over I-95 | 1956 | 398 | Fair |
| Two Rod Road over I-95 | 1998 | 363 | Good |
| Depot St over Steverns Brook | 1943 | 350 | Poor |
| Princes Point Rd over Buttermilk Cove | 1957 | 341 | Fair |
| Lucas St over Capisic Brook | 2006 | 340 | Good |
| Tuttle Rd over E Branch Royal River | 1999 | 325 | Fair |
| Brand Rd over Pleasant River | 1997 | 320 | Good |
| Mill Road over Piscataqua River | 1909 | 284 | Poor |
| Montgomery Rd over Colley Wright Brook | 1997 | 272 | Good |
| Burnett Rd over Little River | 2009 | 270 | Fair |
| Covered Bridge R over Presumpscot River | 1976 | 262 | Poor |
| Edes Falls Rd over Crooked River | 1936 | 242 | Poor |
| Chadsey Rd over Chandler Brook | 2006 | 240 | Good |
| Ryefield Bridge Rd over Crooked River | 1912 | 240 | Fair |
| William Knight Rd over Pleasant River | 1965 | 207 | Poor |
| Sweetser Rd over Chandler Brook | 1920 | 203 | Fair |
| Dingley Island Rd over Dingley Cove | 2006 | 201 | Fair |
| Milliken Rd over Chandler Brook | 1999 | 170 | Good |
| Harding Rd over State of Maine RR | 1930 | 110 | Fair |
| Lakeside Pines Rd over Rogers Brook | 1940 | 93 | Fair |
| Mill Rd over Piscataqua River | 1960 | 80 | Poor |
| Scribners Mills Rd over Crooked River | 1936 | 60 | Poor |
| Cassidy Point Dr over Ptrr | 1939 | 50 | Fair |
| Crawford Rd over Breakneck Brook | 1939 | 50 | Poor |
| Casco Bay Landing over Casco Bay | 1961 | 20 | Fair |
| Long Island Ferry over Casco Bay | 1996 | 20 | Fair |
| Welch St over Casco Bay/Atlantic Ocean | 1993 | 11 | Fair |