Oswego Lake

Oswego Lake
Lakewood Bay (connected to the main lake in 1928)
Location of Oswego Lake in Oregon, USA.
Location of Oswego Lake in Oregon, USA.
Oswego Lake
Location of Oswego Lake in Oregon, USA.
Location of Oswego Lake in Oregon, USA.
Oswego Lake
LocationLake Oswego, Clackamas County, Oregon
Coordinates45°24′34″N 122°41′47″W / 45.40944°N 122.69639°W / 45.40944; -122.69639
TypeKolk depression/Reservoir
Primary inflowsTualatin River, Springbrook Creek
Primary outflowsWillamette River (via Oswego Creek)
Catchment area6.6 sq mi (17 km2)[1]
Basin countriesUnited States
Max. length3 mi (4.8 km)
Max. width0.3 mi (0.48 km)
Surface area431.7 acres (1.747 km2)[2]
Average depth26 ft (7.9 m)[1]
Max. depth55 ft (17 m)[1]
Water volume10,055 acre⋅ft (12,403,000 m3)[1]
Residence time2 months[1]
Shore length111.95 mi (19.23 km)[2]
Surface elevation99 ft (30 m)[1]
IslandsJantzen Island
SettlementsLake Oswego
1 Shore length is not a well-defined measure.

Oswego Lake is a lake in Clackamas County, Oregon, United States, that is completely surrounded by the city of Lake Oswego. Though the lake is naturally occurring (a former channel of the Tualatin River), it has been significantly altered because of the concrete dam that has increased its size to 431.7 acres (1.747 km2). The United States Geological Survey records the official name as Lake Oswego and, because of its artificially increased size, classifies it as a reservoir.[3] To distinguish it from the city, however, the lake is usually called Oswego Lake.[4]

  1. ^ a b c d e f Cite error: The named reference johnson was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference atlas was invoked but never defined (see the help page).
  3. ^ "Feature Detail Report for: Lake Oswego". United States Geological Survey. Retrieved February 6, 2012.
  4. ^ Schouten, Hank (May 29, 1984). ""Lake Oswego" lochs up first place in name game". The Oregonian. p. 1MS.