June 1–September No length limit. 30 – 40 inch protective slot limit (all striped bass caught between 30 and 40 inches must be immediately released unharmed, fish under 30 inches and over June 1–September No length limit. 2 per day in the aggregate. Smith Mountain Lake and its tributaries, including the Roanoke. A new protective slot limit (30””) was initiated in to reduce the number of stunted striped bass between inches, improve growth, and provide. River upstream to Niagara Dam. Reminder that for Smith Mountain Lake, VA the slot limit starts tomorrow (11/1) - no striped bass 30”- 40” may be harvested. . "On Smith Mountain Lake and its tributaries, no striped bass inches from Nov. Reminder the Striper slot rules change on Jan 1. Two per day for each person on the boat with a fishing license or children under 16 when fishing with a person with a license. From November 1 to May 31 there is a slot limit ( inches) for. Smith Mountain Lake and its tributaries, including the Roanoke River upstream to Niagara Dam. 1 - May. 2 per day in the aggregate. A new protective slot limit was adjusted in to inches (only for the months of Nov-May), up from inches initiated in From. During the period from June 1 to October 3, you may catch 2 fish with no length limits. Smith.