ORS 830.185
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:(3)
Intentionally left blank —Ed.(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]
Source:
Section 830.185 — Speed restrictions in certain areas, https://www.oregonlegislature.gov/bills_laws/ors/ors830.html
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