Bridges in Maine

2,542Total Bridges

637Good

1,513Fair

392Poor

Bridge Conditions in Maine

Maine has 2,542 bridges tracked in the National Bridge Inventory. Of these, 392 (15%) are rated as poor condition — meaning at least one major component has significant deterioration. The average bridge in Maine is 54 years old.

Maine Bridge Facts

Total Bridges	2,542
Good Condition	637
Fair Condition	1,513
Poor Condition	392
Average Bridge Age	54 years
Longest Bridge	4748.0 ft

Longest Bridges in Maine

Casco Bay Bridge over Fore River4748.0 ftFair I 95 over Piscataqua River RTE 1034000.0 ftFair Leeman HWY over Kennebec River2982.0 ftGood US 1 Byp over Piscataqua River & Roads2785.1 ftGood Route 1 over Sheepscot River2729.7 ftFair

Counties in Maine

Androscoggin136 bridges17 poor Aroostook231 bridges27 poor Cumberland344 bridges35 poor Franklin129 bridges29 poor Hancock69 bridges17 poor Kennebec190 bridges24 poor Knox54 bridges9 poor Lincoln63 bridges7 poor Oxford253 bridges45 poor Penobscot317 bridges60 poor Piscataquis80 bridges17 poor Sagadahoc64 bridges6 poor Somerset173 bridges40 poor Waldo92 bridges15 poor Washington111 bridges22 poor York236 bridges22 poor

Poor Condition Bridges in Maine

Bridge	County	Length	Traffic	Year
I 295 NB over Route 88 (lafayette St)	Cumberland	138.8 ft	27,320	1959
I 295 SB over Route 88 (lafayette St)	Cumberland	138.8 ft	27,080	1959
I 95 over Route 15 (broadway)	Penobscot	156.5 ft	25,340	1960
I 95 SB over Stillwater Avenue	Penobscot	217.5 ft	25,150	1960
I 95 NB over Stillwater Avenue	Penobscot	217.5 ft	25,120	1960
Congress ST over Stroudwater River	Cumberland	43.0 ft	24,013	1989
Main ST over Pedestrian Walkway	Androscoggin	27.6 ft	19,242	1975
Western Av over Interstate 95 NB & SB	Kennebec	262.5 ft	16,934	1955
Main ST over Androscoggin River	Cumberland	802.8 ft	16,790	1931
Main ST over Union River	Hancock	158.1 ft	16,449	1923
Alfred RD over Mousam River	York	74.1 ft	14,260	1958
Tandberg Trl over Ditch Brook	Cumberland	101.4 ft	14,042	1959
Roosevelt Trl over Pleasant River	Cumberland	52.5 ft	13,750	1989
North ST over Meduxnekeag River	Aroostook	239.5 ft	13,721	1944
Mount Vernon Av over Bond Brook	Kennebec	35.8 ft	13,526	1934
Lower Main ST over M C Rr	Cumberland	45.9 ft	12,879	1936
Main ST over Tannery (bird) Brook	Oxford	22.0 ft	11,655	1929
Independent ST over Kenduskeag Stream	Penobscot	107.0 ft	11,561	1929
Main ST over Megunticook River	Knox	35.8 ft	11,473	1931
One ST over Piscataqua River	York	503.9 ft	10,523	1938
E Main ST over Piscataquis River	Piscataquis	146.3 ft	10,496	1912
Route 1 over Interstate 295 NB & SB	Cumberland	244.1 ft	10,320	1958
Oxbow RD over Interstate 95 NB & SB	Somerset	260.5 ft	10,232	1963
Parkway S over I-395	Penobscot	247.4 ft	10,212	1985
Main ST over Swift River	Oxford	175.5 ft	10,165	1952
Lewiston RD over Collyer Brook	Cumberland	32.2 ft	10,140	1922
Auburn RD over Martin Stream	Androscoggin	34.1 ft	9,883	1970
Main ST over Middle River	Washington	28.9 ft	9,731	1930
Main ST over Mill Stream	Hancock	44.0 ft	9,693	1923
Route 1 over Cousins River	Cumberland	56.8 ft	9,550	1930
Sabattus RD over Sabbattus River	Androscoggin	73.2 ft	9,521	1951
I 95 SB over Webb Road	Somerset	138.5 ft	9,250	1964
Maine ST over US 1 N & SB	Cumberland	76.8 ft	9,185	1961
Route 1 over Carrying Place	Hancock	34.1 ft	9,100	1930
I 95 SB over Route 152 & Mcrr	Somerset	330.7 ft	8,970	1964
Water Street over Bond Brook	Kennebec	38.1 ft	8,861	1854
Spring ST over Kennebec River	Kennebec	574.1 ft	8,829	1936
Hogan RD over Interstate 95 NB & SB	Penobscot	453.7 ft	8,606	1960
I 95 NB over Webb Road	Somerset	137.8 ft	8,530	1964
US HWY 202 over Mcrr	Penobscot	153.9 ft	8,412	1965
State ST over Kenduskeag Stream	Penobscot	137.1 ft	8,231	1976
I 95 SB over Somerset Avenue	Somerset	147.0 ft	8,190	1964
Narragansett Trl over Saco River	York	202.1 ft	8,158	1948
Park ST over Little Andro River	Oxford	149.3 ft	7,915	1961
Main ST over Mill Canal	Somerset	40.0 ft	7,854	1931
Vmb Ramp W over M C Rr	Androscoggin	182.7 ft	7,825	1973
Atlantic HWY over Little River	Waldo	50.2 ft	7,764	1944
I 95 NB over Somerset Avenue	Somerset	174.2 ft	7,220	1964
Bridge ST over Androscoggin River	Oxford	285.1 ft	7,203	1936
Heald HWY over ST George River	Knox	180.4 ft	6,940	1960
River RD over Pleasant River	Cumberland	89.9 ft	6,683	1947
Veterans ST over Mcrr Siding	Oxford	177.2 ft	6,398	1960
I 95 NB over Pushaw Stream	Penobscot	187.0 ft	6,360	1965
Bridge ST over Androscoggin River	Androscoggin	409.1 ft	6,291	1959
Lincoln ST over Main Canal	Androscoggin	94.5 ft	6,236	1958
US HWY 202 over Souadabscook Str	Penobscot	292.0 ft	6,229	1965
W Main ST over Sebec River	Piscataquis	42.3 ft	6,037	1931
Main ST over Sebec River	Piscataquis	77.1 ft	6,037	1915
Main ST over Sebec River	Piscataquis	85.0 ft	6,037	1915
Lucy Knowles RD over Wilson Stream	Franklin	175.9 ft	6,000	1937
US HWY 202 over Souadabscook Stream	Penobscot	292.0 ft	5,958	1965
Dover-eliot RD over Salmon Falls River	York	494.8 ft	5,800	1969
Bangor RD over Colson Stream	Waldo	38.1 ft	5,459	1935
Main ST over Royal River	Cumberland	125.0 ft	4,910	1930
Riley RD over Androscoggin River	Franklin	371.1 ft	4,890	1966
Riley RD over Androscoggin River	Franklin	602.0 ft	4,890	1966
Swan Lake Av over Goose River	Waldo	31.5 ft	4,806	1953
Pascal Av over Goose River	Knox	161.4 ft	4,760	1951
Pequawket Trl over Quaker Brook	Cumberland	24.0 ft	4,700	1938
Augusta RD over Cathance River	Sagadahoc	180.1 ft	4,672	1973
Huston RD over N Branch Little River	Cumberland	35.8 ft	4,553	1966
Buxton Road over Saco River	York	607.0 ft	4,526	1936
Route 1 over Chandler River	Washington	119.8 ft	4,513	1934
Alewive RD over Kennebunk River	York	30.5 ft	4,490	1932
Old Point Av over Jones Brook	Somerset	33.1 ft	4,464	1963
N Main ST over Sebasticook River	Somerset	70.5 ft	4,336	1985
Route 1 over 295/nb Ramp 295 To 1/ptr	Cumberland	515.1 ft	4,280	1974
US Route 2 over Ellis River	Oxford	155.8 ft	4,239	1928
Acadia HWY over Kingdom Brook	Waldo	21.0 ft	4,173	1958
I 95 SB over N Howland RD	Penobscot	136.5 ft	4,120	1966
Falmouth RD over Pleasant River	Cumberland	22.0 ft	4,000	1962
Main RD over High Water Chan Pen Riv	Penobscot	103.0 ft	3,923	1938
Main ST over Sebasticook River	Somerset	69.6 ft	3,860	1935
Route 1 over Tunk Stream	Washington	89.9 ft	3,819	1962
Main ST over Mcrr Branch	Cumberland	45.3 ft	3,700	1930
Limestone RD over Aroostook Riv Abandd Rr	Aroostook	801.2 ft	3,620	1956
Norway RD over Woodsum River	Cumberland	38.7 ft	3,606	1979
Main RD over Harvey Brook	Penobscot	23.6 ft	3,510	1923
Portland ST over Androscoggin R. W Chanel	Oxford	748.0 ft	3,509	1929
Tuttle Road over I-295 RTE US 1 & M C Rr	Cumberland	488.5 ft	3,497	1958
Durham RD over I-295	Cumberland	262.5 ft	3,421	1957
I 95 SB over Main RD & Penobscot R.	Penobscot	1055.1 ft	3,270	1966
I 95 SB over RT 116 (pattagumpus Rd)	Penobscot	129.6 ft	3,270	1966
Ossipee Trl over Mill Brook	Oxford	23.0 ft	3,172	1920
I 95 NB over RT 116 (pattagumpus Rd)	Penobscot	126.0 ft	3,160	1966
I 95 NB over Main RD & Penobscot R.	Penobscot	1065.6 ft	3,160	1966
Kenduskeag Avenue over Interstate 95 NB & SB	Penobscot	229.7 ft	3,020	1960
Lagrange RD over I-95 NB & SB	Penobscot	408.1 ft	2,967	1965
Seaside Av over Goose Fare Creek	York	65.3 ft	2,930	1948
Main ST over Cross Cove	Washington	59.4 ft	2,861	1936