Reservoir report

Maine reservoirs & dams

Every documented dam and reservoir in Maine — with normal storage capacity, dam height, max discharge, hazard classification, and drainage area. Sourced from USACE NID and state water-resource agencies.

Dams in Maine

584

Total storage

11,185,788ac·ft

High-hazard dams

Updated

May 17

Open the Maine reservoir layer on the map Every dam and reservoir filtered to Maine on the interactive map.

Open the map →

May

2026

Reservoir report

Maine has several reservoirs and dams that provide water for drinking, irrigation, and hydroelectric power generation. The most significant reservoirs in the state include Sebago Lake, Rangeley Lake, and Moosehead Lake. These reservoirs are fed by streams and rivers such as the Presumpscot River, Kennebec River, and Androscoggin River. The hydrology of the area is heavily influenced by the snowpack in the winter months, which feeds into the rivers and streams during the spring thaw. The mountains, particularly the western mountains, play a crucial role in storing snowpack and regulating streamflow into the reservoirs.

Maine has experienced both record high and low levels of water in its reservoirs. In 2020, Sebago Lake reached a record high level due to heavy rainfall and snowmelt. In contrast, a severe drought in 2016 caused water levels to drop significantly in many of the state's reservoirs. Seasonal trends show that water levels typically peak in the spring and early summer due to snowmelt and decrease in the fall and winter months. Overall, reservoirs and dams play an essential role in Maine's water supply and energy production.

Maine at a glance

Storage, hazard, and history

How the Maine dam inventory breaks down -- aggregate stats computed across every documented dam in the state.

Hazard classification

High71
Significant84
Low428
Unknown1

USACE downstream-consequence rating, not failure likelihood.

Notable dams

Tallest Indian Pond 175 ft
Oldest Mill Pond 1720
Total storage All Maine dams 11,185,788 ac·ft

Built by decade

Most U.S. dams were built mid-20th century during the federal water-development era.

Full inventory

Maine dams & reservoirs

Every documented dam in Maine. Sortable by any column; quickly filterable by name. Numeric columns heat-mapped from light to deep based on value. Tap any dam for the full report.

Name	Year built	Normal storage	Dam height	Max discharge	Hazard	Drainage area
Brunswick	1982	251	42	20,000	Low	3,410
Pejepscot	1896	3,278	48	110,000	Significant	3,420
Worumbo	1988	1,700	17	136,735	Low	3,370
Great Stone	1865	1,600	27	8,050	Low	2,901
Deer Rips	1903	1,200	54	105,000	Low	2,865
Gulf Island	1926	55,100	99	201,000	High	2,860
Livermore Falls	1908	300	22	124,000	Low	2,490
Otis	1898	1,700	19	116,000	Low	2,490
Jay	1912	1,800	24	82,000	Low	2,475
Riley	1897	2,000	23	64,000	Low	2,440
Rumford Falls Middle Dam	1892	141	20	75,000	Significant	2,080
Rumford Falls Upper Dam	1918	2,900	40	75,000	High	2,069
Sleeper	1850	3,600	10	·	Significant	34
Thompson Lake	1800	21,800	13	·	Low	46
Norway Lake	1930	5,200	16	·	Significant	36
East Auburn	1946	29,000	17	·	High	18
Nezinscot River	1900	650	21	·	Significant	147
Lovejoy Pond	1835	3,540	18	·	Low	47
Tolman	1967	128	20	·	Significant	0
Aziscohos	1911	220,000	74	7,746	High	214
Abbott Brook Dike	1911	220,000	27	0	High	214
Middle Dam	1883	130,738	22	25,773	High	472
Upper Dam	1883	192,039	25	22,754	High	382
Mahaney	1932	8,500	15	6,687	Low	112
Rangeley	1836	30,744	17	·	Low	99
Cataract - East Channel Dam	1938	28	49	5,625	Low	1,703
Skelton	1948	25,250	75	160,000	High	1,622
Bar Mills	1956	600	25	16,320	Low	1,595
West Buxton	1907	1,230	30	16,000	Significant	1,572
Bonny Eagle	1911	2,320	67	0	Low	1,563
New River Channel Dam	1911	2,320	13	17,000	Low	1,563
Hiram	1917	1,000	30	16,475	Low	832
Swans Falls	1923	450	10	50,800	Low	446
Ledgemere	1905	6,300	25	10,400	Significant	157
Balch Pond	1900	1,700	12	·	Significant	9
Horne Pond	1800	400	7	·	Low	0
Rock Haven Lake	1790	1,700	14	·	Low	0
Watchic Pond	1850	1,075	7	·	Low	0
Upper Kezar Falls - Approach Channel	1910	130	11	3,360	Low	416
Upper Kezar Falls - Main Channel	1860	130	8	16,600	Low	416
Bickford Pond	1856	1,530	11	·	Significant	5
Colcord Pond	1919	1,329	11	·	Significant	3
Moose Pond Storage	1917	8,967	14	·	Significant	26
Kezar Lake Outlet	1924	18,800	12	·	Low	63
Batson River	1900	50	18	·	Low	0
Grand Lake Stream	1960	120	15	·	Low	0
Lermond Pond	1850	520	12	·	Significant	13
Cascade Pond	1871	80	30	·	Low	0
Cherryfield	1965	9,720	25	·	High	232
South Berwick	1923	900	38	·	Low	86
Cumberland Mills	1896	380	16	·	Low	480
Gambo	1911	1,000	24	10,135	Low	493
Dundee	1913	2,900	50	27,000	High	446
North Gorham	1901	1,300	28	7,800	High	444
Eel Weir	1879	330,000	22	8,800	High	441
Highland Lake Westbrook	1930	4,600	11	·	Low	9
Thomas Pond	1935	1,400	8	·	Low	0
Crystal Lake	1890	3,700	14	·	Low	9
Keewaydin Lake	1850	1,050	11	·	Low	10
Highland Lake Bridgton	1900	4,600	8	·	Low	20
Panther Pond	1925	5,756	13	·	Low	24
Lockwood	1919	600	17	123,000	Low	4,228
Hydro-Kennebec	1989	3,900	35	190,000	Low	4,270
Hydro-Kennebec (Old Canal Gatehouse)	1989	3,900	28	185,850	High	4,270
Shawmut	1912	5,000	26	12,540	Low	4,200
Weston - North Channel	1921	18,600	38	143,000	High	3,894
Weston - South Channel	1921	18,600	51	51,500	High	3,894
Abenaki	1922	520	25	126,000	Low	3,148
Anson	1923	5,860	36	82,500	Low	3,148
Williams	1939	4,575	45	48,790	Low	2,720
Wyman	1930	208,910	155	59,630	High	2,619
Indian Pond	1955	78,000	175	22,000	High	1,382
Indian Pond - East Dike	1955	78,000	15	0	Significant	1,382
Indian Pond - West Dike	1955	78,000	10	0	Low	1,382
Moosehead - East Outlet	1835	1,080,000	26	54,000	Significant	1,268
Moosehead - West Outlet	1835	1,080,000	20	3,900	Significant	1,268
Lower Togus Pond	1900	3,386	15	·	Low	22
American Tissue	1900	108	24	5,392	High	220
New Mills	1885	2,850	22	·	High	217
Cobbosseecontee Outlet	1900	50,750	14	·	Significant	114
Annabessacook Lake	1900	2,200	11	·	Low	70
Carleton Pond	1904	600	13	·	Significant	3
Maranacook Lake	1820	2,070	12	·	Low	25
Mill Pond	1915	144	16	·	Low	0
Wilson Pond	1900	10,280	14	·	Low	0
Union Gas	1924	600	28	2,460	Low	207
Automatic	1924	900	33	1,910	Low	205
Rice Rips	1908	1,000	23	4,945	Significant	185
Oakland	1901	51	14	200	Low	178
Messalonskee Lake	1992	110,000	14	2,400	High	177
Great Pond	1900	32,900	14	·	Low	46
Burnham	1929	1,904	32	12,200	Low	570
Pioneer	1890	250	12	15,000	Low	320
Waverly Avenue	1893	2,550	11	400	Significant	313
Great Moose Lake	1924	23,520	16	·	Significant	228
China Lake	1910	10,100	12	·	Low	34
Sebasticook	1988	10,560	15	·	Low	128
Plymouth	1920	1,650	11	·	Low	0
Indian Pond	1900	482	12	·	Low	30
Wesserunsett	1800	9,660	11	·	High	18
Wilson Pond	1845	11,010	24	·	High	27
Chesterville Marsh	1900	240	19	·	Low	25
Walton Mill	1880	150	20	·	Low	0
Mill Pond	1860	62	8	·	Low	8
Porter Lake	1940	1,475	8	·	Low	6
Flagstaff	1948	275,482	45	20,000	High	516
Spencer Lake	1946	7,124	14	·	Low	0
Eustis	1952	570	17	11,345	Low	236
Chain Of Ponds	1900	3,000	16	·	Low	0
Moxie	1925	18,720	19	·	Significant	83
Brassua	1927	206,000	50	74,940	High	722
Crocker Pond	1914	681	12	·	Low	0
First Roach Pond	1905	10,454	18	·	Low	70
Orono	1917	1,300	15	48,000	Low	7,710
Stillwater	1902	1,910	25	25,000	Low	7,602
Milford	1906	2,250	34	70,265	Low	7,600
Gilman Falls	1906	2,250	8	35,132	Low	7,600
West Enfield	1988	11,480	46	96,000	Low	5,218
Run Around	1894	11,480	15	2,000	Low	5,218
Mattaceunk	1939	21,000	45	168,300	High	3,308
Alamoosook Lake	1930	2,200	15	·	High	0
Craig Pond Dam	1891	6,400	13	640	Low	1
Toddy Pond	1900	1,800	16	·	High	25
Silver Lake	1930	7,700	29	·	High	0
Orland Village	1930	144	15	·	Low	0
Frankfort	1840	72	18	·	Low	166
Brewer Lake	1900	2,500	14	·	Low	12
Garland Pond	1905	540	15	·	Low	15
Cold Stream Pond	1890	11,600	13	·	Low	1
Howland	1916	3,400	17	42,525	Low	1,500
Browns Mill	1856	60	24	·	Low	352
Upper Dam	1908	200	12	22,000	Low	295
Guilford	1963	120	12	·	Low	295
Seboeis Lake	1925	16,128	11	·	Low	0
Schoodic Lake	1929	19,000	11	·	Low	35
Milo Hydro	1850	0	15	·	Low	407
Sebec	1984	60,330	15	14,200	High	327
Wilson Pond	1907	9,408	12	·	Significant	50
Branns Mill	1900	1,550	14	·	Low	13
Pingree Pond	1900	90	16	·	Low	0
Kingsbury	1958	2,688	13	·	Low	20
Shirley Pond	1959	156	13	·	Low	0
Mill Pond Lpp	1917	96	18	·	Low	30
Mattanawcook Pond	1918	1,772	13	·	Low	28
Folsom Pond	1918	2,500	18	·	Low	12
Long Pond	1915	1,410	12	·	Low	8
Stump Pond	1936	792	12	·	Low	17
Long Pond	1949	3,070	14	·	Low	14
Danforth	1845	22,912	16	·	Low	178
Grand Lake (Matagamon)	1941	41,400	25	·	High	485
Old Falls	1890	525	36	·	Significant	100
Estes Lake	1910	5,350	45	·	High	99
River Street	1870	240	17	·	Significant	39
Number One Pond	1912	278	14	·	Low	41
Emery Mills	1889	12,713	29	·	High	30
Chases Pond	1902	1,180	22	·	Significant	4
Chases Pond Dike	1950	1,180	6	·	Significant	4
Cider Mill	1900	72	13	·	Low	0
Middle Pond	1901	920	35	·	Significant	1
Scituate Pond	1947	230	15	·	Low	0
Folly Pond South	1942	768	28	·	Low	·
Whiskeag	1937	126	9	·	Low	0
Boulter	1950	1,995	31	·	Significant	2
Mill Pond	1860	55	10	·	Low	0
Little Sebago Lake	1890	7,620	15	·	Significant	17
Telos	1890	10,100	20	·	Low	0
Lock	1875	101,000	15	·	Low	204
Medway	1922	1,500	35	18,700	Low	2,120
East Millinocket	1907	1,950	26	75,500	Low	2,111
Dolby	1906	41,956	66	75,000	High	2,108
Stone Dam	1900	8,100	27	109,000	High	1,890
Stone Dam - Dike 1	1900	8,100	10	0	Low	1,890
Stone Dam - Dike 2	1900	8,100	10	0	Low	1,890
Stone Dam - Dike 3	1900	8,100	10	0	Low	1,890
Stone Dam - Dike 4	1900	8,100	9	0	Low	1,890
Stone Dam - Dike 5	1900	8,100	9	0	Low	1,890
Stone Dam - Dike 6	1900	8,100	9	0	Low	1,890
Stone Dam - Dike 7	1900	8,100	9	0	Low	1,890
Stone Dam - Dike 8	1900	8,100	9	0	High	1,890
North Twin	1934	346,000	35	72,000	High	1,877
North Twin - Dike 1	1934	346,000	11	0	Significant	1,877
North Twin - Dike 2	1934	346,000	11	0	Significant	1,877
North Twin - Dike 3	1934	346,000	15	0	Significant	1,877
North Twin - Dike 4	1934	346,000	11	0	Significant	1,877
North Twin - Dike 5	1934	346,000	11	0	Significant	1,877
North Twin - Dike 6	1934	346,000	13	0	High	1,877
Ripogenus	1916	688,000	83	95,660	High	1,422
Millinocket Lake	1910	45,370	20	7,000	High	122
Seboomook Lake	1936	117,080	60	45,000	High	526
Nesowadnehunk	1930	10,400	12	·	Low	14
Harrington Lake	1930	7,691	16	0	Low	40
Ragged Lake	1937	30,490	30	6,680	Low	40
Caucomgomoc Lake	1981	42,516	16	14,750	Low	178
Loon Lake	1914	10,537	17	0	Low	60
Dole Pond	1930	3,857	19	0	Low	43
Long Pond	1918	3,007	12	0	Low	14
Canada Falls Lake	1921	21,670	50	10,060	High	164
Penobscot Lake	1916	8,081	14	0	Low	16
Woodland	1906	13,800	46	·	High	1,350
Grand Falls	1915	88,000	50	·	High	1,320
Vanceboro	1967	187,100	21	13,400	Significant	417
Forest City	1949	105,300	12	2,400	Low	138
Clifford	1971	8,576	15	·	Low	13
West Grand Lake	1836	160,900	13	5,450	Significant	162
Farm Cove	1879	160,900	15	0	Low	162
Hodgdon Marsh	1963	545	16	·	Low	36
Mars Hill	1900	120	14	·	Low	75
Christina	1967	3,800	30	·	High	5
Caribou	1889	1,821	24	63,000	Low	1,943
Millinocket Lake	1943	22,900	11	2,735	Low	70
Trafton Lake	1969	4,790	66	·	High	4
Pattee Mill	1979	80	15	·	Low	22
Monson Pond	1925	1,280	16	·	Low	12
Scopan	1928	59,300	35	20,900	High	69
Daigle Pond	1874	215	15	·	Low	0
Churchill	1968	78,000	20	·	Low	0
Damariscotta - Intake Dam	1920	142,529	15	0	Low	57
Damariscotta - Waste Gate Dam	1920	142,529	10	·	Low	57
Meddybemps	1973	14,246	10	·	Low	0
Great Works Pond	1900	330	13	·	Low	0
Robinson	1930	250	18	·	Low	93
Mount Zircon	1914	300	70	·	High	3
Holmes Mill	1870	45	15	·	Low	0
Ellis Dam	1850	525	15	·	Low	0
Pleasant River Lake	1962	2,370	10	·	Low	15
Trues Pond	1870	1,070	18	·	Low	26
Stevens Pond	1820	340	12	·	Low	9
Lake St George	1820	5,750	15	·	Significant	6
Casket Mill	1920	15	25	·	Low	0
North Auburn	1964	120	12	·	Significant	8
Fish Pond	1874	260	9	·	Low	5
Ruffingham Wma	1950	1,120	14	·	Low	0
Kingdom Bog	1853	329	12	·	Low	3
Clary Lake Dam	1894	8,650	10	·	Low	8
Colby Mills	1825	1,158	16	·	Low	0
Ellsworth	1907	2,500	62	17,000	High	613
Graham Lake Dam	1924	130,000	43	24,000	High	499
Graham Lake Flood Control	1994	130,000	58	24,000	High	499
Branch Lake	1911	15,300	15	·	Significant	31
Green Lake	1911	107,000	8	3,200	Low	58
Lyle Frost Wma	1900	540	11	·	Low	0
Lower Hadlock Pond	1934	126	12	·	Low	1
Upper West Bay Pond	1978	740	9	·	Low	0
Mill Street	1910	150	20	·	High	38
Patten Brook	1900	1,800	9	·	Low	0
Henderson #2	1970	194	11	·	Low	0
Seabright	1900	825	23	·	High	32
Megunticook East	1900	10,440	18	·	High	32
Megunticook West	1900	10,440	14	·	High	32
Bristol Mills	1914	6,705	15	·	Low	31
Nequasett Lake	1920	1,950	12	·	Low	0
Pitcher Pond	1900	1,468	12	·	Low	0
Kelly	1835	200	15	·	Low	18
Mason	1835	1,620	15	·	Low	19
Swan Lake	1900	7,500	10	90	Low	10
Lower Reservoir	1943	370	36	·	Significant	17
Upper Reservoir	1910	480	34	·	Significant	13
Perry Station Dam	1911	72	20	·	Significant	40
Whiting	1927	96	21	·	Low	0
Torsey Pond	1944	1,310	11	·	Low	10
Mill Dam	1900	200	10	·	Low	0
Billings	1800	120	18	·	Low	76
Patte Mill Dam	1880	150	13	2,460	Low	2
Twitchell Pond	1860	468	7	·	Low	2
Taylor Pond	1900	576	12	·	Low	36
Flying Pond	1952	1,740	7	·	Low	14
Lubec Water & Elec. Light Co.	1900	1,507	14	·	Low	0
Echo Lake	1963	220	17	·	Low	2
Sokokis Lake North	1901	768	15	·	Low	0
Little Ossipee Lake	1993	1,600	14	·	Low	0
Symmes Pond	1969	90	9	·	Low	1
Shapleigh Pond	1900	280	16	·	Low	0
Colton Brook	1969	280	34	·	Significant	1
North Pond	1890	776	11	·	Low	7
Stroudwater River	1849	152	16	·	Low	0
Hicks Pond	1944	376	13	·	Low	11
Bear Pond	1820	1,212	16	·	Low	7
Cochnewagon	1900	1,060	9	·	Significant	4
Locke Mills	1870	3,415	15	·	Significant	9
Dirigo Dowel	1890	102	8	·	Low	0
Kingfield	1811	60	14	·	Low	164
Gilman Stream	1911	1,600	8	835	Low	133
Cambolasse Pond	1950	72	12	·	Low	13
Spragues Mill	1955	380	14	·	Low	11
Beaver Dam Pond	1900	205	12	·	Low	2
Mallison Falls	1900	30	14	5,500	Significant	503
Peabody Pond	1800	1,730	8	·	Low	0
Upper	1900	736	10	·	Low	30
Pokey	1943	16,618	16	·	Low	0
Chase Mill	1870	27,500	20	·	Low	53
Drews Lake	1933	2,490	12	·	Low	19
Songo Lock	1830	12,180	19	·	Low	0
Upper River	1860	54	8	·	Low	70
Farnsworth	1850	108	13	·	Low	70
Josephine	1967	1,300	31	·	High	6
Noyes Mill	1962	94	32	·	High	3
Durepo Brook	1974	270	60	·	High	20
North Vassalboro	1900	220	15	·	Low	43
Carlton Pond Dam	1972	1,245	15	1,408	Low	22
Sandy Pond #3	1900	860	9	·	Significant	8
Wassookeag Lake	1914	8,500	14	·	High	17
Little Dickey	1970	54	14	·	Low	3
Websters Mill	1900	198	16	·	Low	0
Stanley Pond	1929	468	9	·	Low	4
Black Pond	1963	162	9	·	Low	3
Run-A-Round Pond	1900	364	12	·	Low	·
Pleasant Pond	1935	540	8	·	Low	0
Puffers Pond	1810	306	10	·	Low	2
Page	1880	466	9	·	Low	9
Wayne Village	1850	6,490	18	·	Low	0
Cambridge Pond	1940	168	15	·	Low	15
Massachusetts Bog	1970	253	16	·	Low	0
Saddleback Lake	1969	918	10	·	Low	0
Estes Bog # 5	1877	150	15	·	Significant	1
Range Pond #3	1900	1,450	21	·	Low	173
Mechanic Falls	1866	103	15	1,000	Low	250
Welchville	1860	2,544	16	·	Low	196
Malletts Mill	1836	72	16	·	Significant	12
Village	1826	72	16	·	Low	9
Village	1900	65	14	·	Low	·
Rocky Gorge Upper	1900	141	10	6,600	Low	86
Doughty Falls	1840	50	16	·	Low	13
Bauneg Beg	1900	720	12	·	Low	18
Upper Little Falls	1950	5,600	20	·	Significant	40
Eagle Lake	1935	1,350	8	·	Low	4
Long Pond	1930	2,900	8	·	Significant	0
Rocky Lake	1966	4,200	14	·	Low	0
Tacoma Lakes	1885	2,520	11	·	Low	15
Upper Stetson Stream	1853	2,750	10	·	Low	10
Lazy Tom	1900	43	8	·	Low	0
Manhanock Pond	1878	1,365	10	·	Low	22
Lucky Pond	1960	538	10	·	Low	0
Spencer Pond	1965	693	12	·	Low	0
Branch Pond	1817	3,600	25	·	Significant	10
French Stream	1850	95	12	·	Low	0
Adams Pond	1935	274	8	·	Low	0
Heald Stream	1900	99	26	·	Low	0
Sandy Creek	1900	160	12	·	Low	14
Woods Pond	1900	1,050	9	·	Low	7
Salmon Lake	1896	3,700	11	·	Significant	9
Thompsons	1850	130	17	·	Low	0
Mill Stream	1900	540	27	·	Low	0
Haley Pond	1900	420	10	·	Significant	10
Fryeburg	1900	500	17	·	Low	1
Hackett Mills	1986	480	8	474	Low	313
Parson's Mill	1860	70	10	·	Low	15
Dead River	1900	20	18	·	Low	86
Anasagunticook	1900	4,924	11	·	Significant	15
Gun Point Ice Pond	1900	100	9	·	Low	0
Martin Stream	1890	700	8	·	Low	0
Higgins	1911	0	18	·	Low	0
Stanhope Mill #2 Lower	1827	1,295	13	·	Low	6
Clark's Pond	1882	50	20	·	Low	0
King And Bartlett Lake	1950	1,328	7	·	Low	0
Coleman Pond	1900	370	7	·	Low	0
Hilton Pond	1945	48	15	·	Low	0
Sheepscot Outlet	1900	385	10	·	Low	0
Forest Pond	1920	55	15	·	Low	0
Montsweag	1941	150	18	·	Low	0
Sawyer's Pond	1935	72	20	·	Significant	0
Appalachee Pond	1922	90	16	·	Significant	0
Clarks Cove Pond	1920	80	17	·	Low	0
Head Tide	1880	50	22	·	Low	125
Webber Pond	1920	520	10	·	Low	0
Rogers Neck Pond	1880	45	23	·	Low	0
Collins Mills	1830	400	15	·	Low	0
Houghton Pond	1880	140	18	·	Low	0
Stoddards Pond	1964	83	23	·	Low	0
Wah-Tuh Lake	1890	146	16	·	Low	0
Wings Mills	1915	6,300	9	·	Low	0
Mill Pond	1850	72	14	·	Low	0
Hallowell Recreation Pond	1919	48	18	·	Low	0
Twelve Mile Brook	1850	42	12	·	Low	0
Alna Wcs	1950	72	7	·	Low	0
Dresden Bog	1850	877	13	·	Low	0
Ice Pond	1920	312	13	·	Low	0
Bryant Pond	1964	450	45	·	High	6
Easton Intake	1961	32	8	·	Low	0
Smith Farm	1966	120	35	·	Significant	1
State Street	1928	45	21	·	Low	0
Mantle Lake	1971	39	16	·	High	2
Arnold Brook	1971	4,426	21	·	Significant	8
Hanson Brook	1966	1,270	45	·	High	4
Mapleton	1900	55	11	·	Low	0
Alder Brook	1973	250	35	·	Low	15
Burntland	1967	4,565	30	·	Low	22
Whitney	1967	1,820	28	·	Low	8
Lamb Brook Dam	1970	40	14	·	Low	0
Leighton Lake	1945	48	12	·	Low	0
Little Madaswaska	1960	125	33	·	Low	0
Community Pond	1958	40	21	·	High	28
Libby Brook	1965	350	53	·	High	0
Malabeam Lake	1952	55	10	·	Low	0
Violette Brook	1975	2,125	75	·	High	10
Hunnewell Lake	1968	380	12	·	Significant	2
Youngs Lake	1915	80	9	·	Low	0
Sawtelle Deadwater	1880	870	8	·	Low	0
Mill Pond	1920	180	15	·	Low	0
Maine Blueberry Association Dam	1966	82	16	190	Low	0
Ripley Pond	1877	128	10	·	Low	6
Mulligan Bog	1960	160	14	·	Low	8
Weymouth Pond	1880	155	7	·	Low	2
Sanborn Pond	1876	245	8	·	Low	0
Smith's Mill Pond	1900	125	18	·	Low	0
Knight's Pond	1964	65	8	·	Low	0
Jordan Mill Privilege	1770	106	12	·	Low	13
Millbrook	1973	54	14	·	Low	0
Little Brook	1968	48	10	·	Low	0
Square Pond	1900	1,820	17	·	Low	4
Pine Springs Lake	1966	440	22	·	Low	0
Fitch's Mill Pond	1790	32	18	·	Low	0
Rich Mill	1770	210	12	·	Low	0
Wadleigh	1920	812	14	·	Significant	7
Goodwins Mills	1890	54	12	·	Low	0
Cooks Brook Dam	1900	50	15	·	Low	0
Barker Pond	1900	495	8	·	Low	18
Barker Mill Lower	1874	150	30	9,400	Low	353
Hobbs Pond	1976	580	12	·	Significant	2
Sand Pond	1960	360	9	·	Low	2
Bear Pond	1900	820	15	·	Low	11
Heald Pond	1860	640	12	·	Low	5
Mill Pond	1850	240	25	·	Low	32
Stump	1948	500	10	·	Low	15
Pennell Pond	1961	56	14	·	Low	0
Mcdonough Brook	1973	300	19	·	High	8
City Pond	1905	36	20	·	Low	0
Staples Pond	1962	200	10	·	Low	0
Putt Brook	1940	51	11	·	Low	0
Pushaw Lake	1920	13,715	8	·	Low	137
Gilman Mill	1963	52	15	·	Low	0
Great Works Stream	1963	41	8	·	Low	0
Sandy Point G.M.A.	1940	640	10	·	Low	0
Thurston Pond	1900	476	9	·	Low	0
Philips Lake	1900	8,900	10	·	Low	12
Lily Pond	1948	156	11	·	Significant	0
Lower Lead Mountain	1900	4,958	9	·	Low	0
Fosters Pond	1920	37	16	·	Low	0
Mill Pond	1915	2,755	20	·	Low	5
Mill Brook	1900	55	16	·	Low	0
Cmp	1908	72	21	·	Low	19
Hamilton Pond	1920	165	11	·	Low	0
Upper Somes	1900	275	12	·	Low	0
Seal Cove Pond	1900	515	7	·	Low	0
Little Echo Lake	1900	940	10	·	Low	0
Sysladobsis Lake	1861	123,555	9	1,100	Low	162
Wilson Stream	1920	15,053	36	·	Low	0
Gristmill Pond	1978	410	15	·	Low	17
Long Pond	1930	132	10	·	Low	0
Beaver Pond	1935	72	8	·	Low	0
Little Island Pond	1935	120	8	·	Low	0
Popple Dam	1963	89	9	1,907	Low	0
Upper Barn Meadow Dike	1964	30	8	·	Low	0
Upper Magurrewock Dike	1955	96	10	·	Low	0
Middle Magurrewock Dam	1944	1,687	15	2,862	Low	5
Nash's Lake	1890	0	30	·	Significant	0
Bearce Flowage Dam	1950	175	9	334	Low	3
Cranberry Lake Dam	1950	494	10	282	Low	2
Snare Meadow Dam	1958	158	8	76	Low	1
Howard Mill Dam	1960	160	8	445	Low	2
Upper Goodall Heath Dam	1958	91	10	127	Low	0
Barrows Lake	1971	899	9	·	Low	0
Pleasant Lake	1900	24	15	·	Low	0
Tyler Flowage	1964	33	7	·	Low	0
Maccrae Flowage	1966	10	7	·	Low	0
Hanson Flowage Dike	1958	9	7	·	Low	0
Vose Pond Dam	1963	308	9	450	Low	3
Lowell Lake	1900	300	12	·	Low	0
Nicatous Stream	1974	230,703	8	·	Low	71
Gold Brook	1949	32	10	·	Low	0
Pierce Pond Dam	1920	25,600	10	·	Low	0
First Davis Pond	1900	490	8	·	Low	0
Eskutassis Pond	1860	2,014	10	·	Low	11
Jordan Pond	1920	2,238	7	·	Low	0
Lower West Bay Pond	1920	448	12	·	High	8
Jones Pond	1920	3,967	7	·	Low	0
The Tarn	1900	165	7	·	Low	0
Leighton Brook	·	62	7	·	Low	0
Bog Brook	1900	495	10	·	Low	0
Barbless Pond	1900	85	8	·	Low	0
Cathance Lake	1980	19,980	7	·	Low	0
Hobart Bog Dike	1922	69	8	·	Low	0
Chain Lake	1900	2,204	14	·	Low	0
Marks Lake	1820	440	12	·	Low	6
Bell Mill	1900	92	18	·	Low	0
Snare Creek	1900	225	7	·	Low	0
Middle River	1900	73	16	·	Low	0
Mill	1830	70	17	·	Low	0
Mercer Bog	1850	951	27	·	Low	0
Coffin	1849	4,000	10	·	Low	14
Fahi Pond	1900	410	7	·	Low	0
Embden Pond	1900	1,170	8	·	Low	0
Hancock Pond	1923	625	7	·	Low	0
Hewett Marsh	1955	70	8	·	Low	1
Madison Paper Corp Log	1900	75	18	·	Low	0
Seven Mile Stream	1820	60	18	·	Low	0
Pond Farm	1920	528	40	·	Low	0
New Pond	1992	56	21	·	Significant	1
Flagg	1922	0	13	·	Low	0
Pennessewassee Stream	1935	5,200	19	·	Low	24
Rocky Lake Outlet	1966	4,200	14	·	Low	0
Pigeon Brook	1811	90	12	·	Significant	2
Meserve	1920	30	8	·	Significant	0
Nadeau Pond Dam	2007	45	14	·	Low	1
Sam Ayers Dam	2002	40	9	2,440	Low	10
Middle Range Pond	1975	2,820	10	·	Low	11
Mosher	1900	0	10	·	Significant	0
Meadow Cove	2005	0	15	·	Significant	0
Garland Pond Dike	1905	540	8	·	Low	15
Schools Farm Dam	·	90	18	·	Significant	0
Jack's Pond	1960	0	17	·	Significant	0
Mccrum's Pond	1994	90	22	·	Significant	1
Boyd Lake	·	0	8	·	Low	0
Whitney Irrigation Pond	1950	125	16	·	Low	0
Bradbury	1929	711	12	2,060	Low	1,703
Barker Mill Upper	1987	255	24	19,900	Low	350
Lowell Tannery	1987	680	27	9,623	Low	301
Benton Falls	1987	955	27	23,000	Low	860
Kesslen	1954	224	18	6,200	Low	125
Twine Mill	1980	104	18	2,400	Low	125
Dane Perkins	1979	150	12	1,150	Low	125
Foss Mill	1981	90	13	4,073	Low	9
Foss Mill - Dike	1997	90	10	0	Low	9
Stony Brook	1976	60	12	500	Low	2
Springs Island	1925	711	12	3,405	Low	1,703
Lake Murdock	1968	1,825	21	0	Low	1
Beech Hill Pond	·	2,700	7	·	Low	0
Lower Jr Grant	·	21	26	·	Low	0
Capisic Pond	1956	50	16	·	Low	0
Henderson #1	1970	180	11	·	Low	0
Upper Bartlett	·	200	9	·	Low	0
Popple Hill Pond	·	48	9	·	Low	0
Center Pond Outlet	1954	195	10	·	Low	0
Little Moose	1987	195	8	·	Low	2
Dwinal Pond	1947	150	10	·	Low	0
Milliken Mills Pond	1950	36	15	·	Low	2
Lovley's Dam	1974	48	12	·	Low	0
Bell Marsh	1987	7,800	70	·	Significant	8
Bell Marsh Dike	1988	0	18	·	Significant	0
Mic-Mac	·	213	13	·	Low	0
Mill Pond	1915	150	20	·	Undetermined	0
Grassy Pond	1962	136	11	·	Low	0
Eddington-Holbrook	1802	1,503	8	·	Low	0
Swetts Pond	1946	450	6	·	Significant	3
Half Moon Pond	·	880	10	·	Low	0
Rocky Bottom	1965	68	20	·	Low	0
Dunham Brook	1973	510	18	6,962	High	3
Ulmer Brook	1981	23	10	·	Significant	1
Leonards Mill	1796	4,200	7	·	Low	36
Snow's Pond	1970	713	28	0	High	3
Snow's Pond Dike	·	0	10	·	High	3
East Davee Brook	1972	220	28	·	High	1
Howard Pond	1800	654	7	·	High	4
Parker Pond	1920	5,700	14	·	Significant	18
Biscoe Falls	1986	126	15	530	Low	76
Allen Pond	1850	275	7	·	Low	3
Gardner Brook	1986	100	21	·	Low	5
Trout Pond	1915	50	20	·	Low	0
Clearwater Pond	·	4,506	10	·	Significant	7
Egypt Pond	·	1,350	7	·	Low	1
Otter Dam	1964	65	11	51	Low	1
Seeley Flowage Dam	1958	202	8	109	Low	1
Otter Flowage Dike	·	65	11	·	Low	0
South Meduxnekeag	·	50	8	·	Low	22
Lower Magurrewock Dam	1957	108	8	265	Low	0
Daly Flowage Dam	1950	172	10	156	Low	2
Bunganut Lake	1900	0	14	·	Low	0
Littlefield River	1890	162	11	·	Low	22
Heart Pond	1966	6	20	·	Significant	0
Lower Great Brook	1970	11	20	·	Significant	0
East Branch	1978	12	20	·	Significant	0
Great Brook	1962	26	18	·	Significant	0
Big Meadow	·	108	12	·	Low	0
Pleasant Pond	1850	9,200	10	·	Low	9
Foster's Pond	1900	603	8	·	Low	2
Duck Pond	·	93	7	·	Low	1
Keoka Lake	1800	1,308	8	·	Low	6
Foley Mill Privilege #4	·	1,000	10	·	Low	0
Hatfield Lake	1968	2,850	21	·	Low	1
Mill Pond	1720	250	20	·	Low	33
Middle Barn Meadow Dam	1944	376	14	217	Low	1
Clay's Pond	1977	120	8	·	Low	2
Mill Pond	1890	43	18	·	Low	8
Raymond Pond	·	519	8	·	Low	0
Gordon's Pond	1965	36	40	·	Significant	1

Reservoir FAQ

About Maine dams & reservoirs

Where does the Maine dam data come from?

The U.S. Army Corps of Engineers National Inventory of Dams (NID) plus state water-resource agencies. Snoflo joins these public records with live USGS streamgauge readings downstream where available. The NID is the canonical federal dam registry.

What does Hazard Potential mean?

USACE classifies every dam by what would happen if it failed: Low (no loss of life expected, minimal economic damage), Significant (no loss of life but economic, environmental, or lifeline damage), High (loss of life expected). It's a downstream-consequence rating, not a likelihood of failure.

What is Normal Storage in acre-feet?

The volume of water the reservoir holds at its normal operating level, measured in acre-feet. One acre-foot is about 325,851 gallons or 1,233 cubic meters — the amount needed to cover one acre to a depth of one foot.

Why are some Maine dams missing storage or height data?

USACE NID records can have gaps for small or older dams that pre-date federal reporting requirements. Snoflo surfaces whatever the canonical record contains. If a dam you care about has incomplete data, contact the operating agency or USACE for updates.

Can I see live water levels?

Yes — tap any dam name to open its detail page, which pulls live storage data from USGS streamgauges or operating-agency feeds where available. Historical levels and seasonal averages are also shown.

Why does Maine have so many dams?

The U.S. has over 90,000 dams — most built between 1930 and 1980 during the federal water-development era. Maine's count reflects a combination of agricultural irrigation needs, flood control, hydropower, and recreation. The "Built by decade" chart above shows the timeline.