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Timothy Lake Dam

From Oregon Hikers Field Guide

Timothy Lake Dam (Jerry Adams)
The outlet of the Timothy Lake Dam. This picture doesn't show it very well, but it's 100 feet down (Jerry Adams)
A log boom crosses the lake to prevent stuff from damaging the dam. I dare you to cross over to the other side.(Jerry Adams)


Hikes starting here


The Timothy Lake Dam is an earth filled dam of the Oak Grove Fork of the Clackamas River. It's 100 feet high. The reservoir behind it (Timothy Lake) is used to contain water which is released in the summer for electricity production and drinking water during the summer.

The Dam does not produce any electricity. There is a PGE facility to the Northwest of the Dam, that has electricity (lights at night) but otherwise the campgrounds have no facilities, except drinking water. There are a lot of RVs at the campgrounds, some of which run generators.

Driving Directions

To get to the Timothy Lake Dam, drive on U.S. 26 past Government Camp, Highway 35, and Clear Lake to the Skyline Road (#42). There is a sign mentioning Timothy Lake and Olalie Lake. The Skyline Road goes right (South). Drive just past the PCT junction and Joe Graham Horse Camp to the Timothy Lake Road (#57). There is a sign mentioning Timothy Lake. The Timothy Lake Road goes right (West). Drive past the South side campgrounds, which are alternate starting points for this hike. Just past the Dam, turn right (North) on a dead end road into a parking area. The entire route is paved two lane.

An alternate route is to go up the Clackamas Highway (#224) past the Ripplebrook Ranger Station and Campground to the Timothy Lake Road (#57). There is a sign mentioning Timothy Lake. The Timothy Lake Road goes left (East). Just before the Dam, turn left onto the dead end road to the Parking area. The route is two lane paved, except for a section of the Timothy Lake Road which is gravel, wide enough for two cars to pass. It's not too bad for a gravel road.

Fees and Regulations


Other information

Oregon Hikers Field Guide is built as a collaborative effort by its user community. While we make every effort to fact-check, information found here should be considered anecdotal. You should cross-check against other references before planning a hike. Trail routing and conditions are subject to change. Please contact us if you notice errors on this page.

Hiking is a potentially risky activity, and the entire risk for users of this field guide is assumed by the user, and in no event shall Trailkeepers of Oregon be liable for any injury or damages suffered as a result of relying on content in this field guide. All content posted on the field guide becomes the property of Trailkeepers of Oregon, and may not be used without permission.