Timothy Lake

{{Short description|Lake in Oregon, United States}}

{{distinguish|Tim Lake}}

{{Use mdy dates|date=February 2025}}

{{Infobox body of water

| name = Timothy Lake

| image = Clear_and_timothy_lakes.jpg

| caption = Clear Lake and Timothy Lake

| image_bathymetry =

| caption_bathymetry =

| location = Clackamas County, Oregon, United States

| coords = {{coord|45.121022|N|121.785654|W|type:waterbody_region:US-OR|display=inline,title}}{{cite gnis|id=1151253|name=Timothy Lake|entrydate=22 May 1986|accessdate=2011-07-18}}

| type =

| inflow =

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| catchment =

| basin_countries = United States

| length =

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| area = {{convert|2.17|sqmi|sqkm}}{{cite web|title=Timothy Lake|url=http://www.fs.fed.us/r6/fishing/forests/gofishing/mth_lakes.html#1|publisher=Mt. Hood National Forest|accessdate=2011-07-10}}

| depth = {{convert|45|ft|m}}

| max-depth = {{convert|80|ft|m}}

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| shore =

| elevation = {{convert|3227|ft|m}}

| islands =

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| frozen =

| pushpin_map = Oregon#USA

| pushpin_label_position =

| pushpin_map_alt = Location of Timothy Lake in Oregon, USA.

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}}

Timothy Lake is a lake about {{convert|50|mi|km}} southeast of Portland, Oregon, United States. It is in proximity to Clear Lake and an impoundment of the Oak Grove Fork Clackamas River.

The compacted-earth Timothy Lake Dam was built by Portland General Electric in 1956 to regulate seasonal water flow to Lake Harriet downstream.{{cite web

| title = Salmon and steelhead runs and related events of the Clackamas River basin: a historical perspective

| url = http://www.portlandgeneral.com/community_environment/initiatives/protecting_fish/clackamas_river/docs/clackamas_river_history_full.pdf

| last = Taylor

| first = Barbara

| publisher = Portland General Electric

| date = February 1999

| format = PDF

| page = 26

| accessdate = 2008-11-03

}} The dam, 110 feet high and impounding 81,000 acre-feet, does not generate any hydroelectric power itself. In the summer, the lake is a very popular destination for camping, boating, hiking, horseback riding, and mountain biking.