Stay in the channel from the MN Confluence to the Hastings Dam. Above than, there are not many wing dams. This time of year is mostly free of debris-so there arent many places of concern-but it is still a river so always keep you eyes open.
Other launches are in Lilydale on Highway 13 and 35E and Hidden Falls, near the Ford Dam.
The river will ice up most of the winter, but a few 30+ degree days will open it back up-so you can fish it all winter, just not each day.
For numbers, launch at 494 and fish the deeper water just above the 494 bridge or go upriver to the airport area just after the railroad bridge. This area is full of wing dams, so stay in the well marked channel. The wing dams hold bigger fish and are pretty easy to see. The Ford dam will also hold fish.
Like Jack said-Pool 2 is C&R for walleye, sauger, LM and SM bass. Everything else is normal regs (crappie, cats, northern etc).