Oregon Revised Statutes Chapter 830 § 830.185 — Speed

Speed restrictions in certain areas. (1) A person may not operate a boat with an outboard or inboard motor at a speed in excess of 10 miles per hour during those hours of the day and on those days of the year that it is lawful to fish, on East Lake, Paulina Lake and Elk Lake in Deschutes County; Magone Lake in Grant County; Timothy Lake in Clackamas County; and Davis Lake in Deschutes and Klamath Counties. (2) A person may not operate a boat with an outboard or inboard motor at a speed in excess of 10 miles per hour on the following named waters of this state located in the counties named: ______________________________________________________________________________ Counties Lakes and Reservoirs Clackamas                 On that portion of the waters of the reservoir known as North Fork Reservoir which lies upstream from a line drawn across the reservoir at right angles to the thread of the stream at a point 2.3 miles upstream from the North Fork Dam measured along the thread of the stream Deschutes                  Hosmer, Lava, Little Cultus, Little Lava, Sparks Lakes and Crane Prairie Reservoir Jefferson                    On that portion of the waters behind Pelton Dam, known as Lake Simtustus, which lies upstream from a line drawn across the lake at right angles to the thread of the stream at a point 0.85 miles upstream from the Pelton Dam measured along the thread of the stream Klamath                     That portion of Upper Klamath Lake that lies west of a line beginning at a point on the north shore of Pelican Bay one-quarter mile east of Crystal Creek and extending due south to the opposite shore of the lake; any stream, creek or canal that leads into the portion of Upper Klamath Lake described above including Crystal Creek, Recreation Creek and Four-Mile Creek, also known as Harriman Creek Linn                           Smith and Trailbridge Reservoirs Wasco                        Clear Lake ______________________________________________________________________________ (3)(a) The State Marine Board shall establish an appropriate decibel rating and speed restriction on Diamond Lake in Douglas County to allow recreational boating that is not limited to fishing. Recreational boating does not include operating a jet ski or similar personal watercraft. The speed established by the board: (A) May not exceed 45 miles per hour between the hours of 9 a.m. and 6 p.m.; (B) May not exceed 10 miles per hour between the hours of 6 p.m. and 9 a.m.; and (C) Shall be restricted to 10 miles per hour at all times in any area within 200 yards of any boat ramp, boat dock, swimming area, inlet or outlet of the lake, designated campground or summer home. (b) The board shall reduce the speed restriction on Diamond Lake to 10 miles per hour at all hours when the State Fish and Wildlife Director determines that the health of Diamond Lake is restored and the lake can be restocked for fishing. [Formerly 488.620; 1995 c.79 §383; 1999 c.252 §2; 2013 c.186 §3]