| Timothy Lake | |
| Location: | Clackamas County, Oregon, United States |
| Coords: | 45.121°N -121.7857°W[1] |
| Basin Countries: | United States |
| Area: | 2.17sqmi[2] |
| Depth: | 45feet |
| Max-Depth: | 80feet |
| Elevation: | 3227feet |
| Pushpin Map: | Oregon#USA |
| Pushpin Map Alt: | Location of Timothy Lake in Oregon, USA. |
Timothy Lake is a lake about 50miles 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.[3] 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.