Graham Lake (Maine)

Graham Lake
Graham Lake
Graham Lake
LocationHancock County, Maine
Coordinates44°39′30″N 68°23′57″W / 44.658408°N 68.399188°W / 44.658408; -68.399188
Typeeutrophic reservoir
Primary inflowsUnion River
Primary outflowsUnion River
Catchment area499 sq mi (1,290 km2)
Basin countriesUnited States
Max. length13 miles (21 km)
Surface area9,383 acres (3,797 ha)
Average depth17 ft (5.2 m)
Max. depth47 ft (14 m)
Water volume105,603 acre⋅ft (130,259,000 m3)
Residence time3 months
Shore length189.8 mi (144.5 km)
Surface elevation106 ft (32 m)
SettlementsEllsworth, Waltham, Mariaville
References
1 Shore length is not a well-defined measure.

Graham Lake in Hancock County, Maine is a eutrophic reservoir formed by the construction of a hydro-electric power dam in 1922 four miles (6 km) upstream from Ellsworth, Maine. The first dam was a hastily built earthen dam built by the Bangor Hydro Electric Company. It failed in 1923, flooding downtown Ellsworth and doing almost $8 million in property damage. The dam was rebuilt and operated by Bangor Hydro until its sale in 1999. The dam has since been acquired by PPL Corporation, which continues to use it to generate electricity.

Water clarity in the lake is low, with secchi disk measurements averaging less than 3 meters. Fish in the lake that are of interest to anglers include smallmouth bass, white perch, chain pickerel, landlocked salmon, and brook trout.