Greetings Eagle,
Firstly, no bait is allowed so you'll be using other methods. Try the pool at the condensory bridge if you miss the crowds on the Vedder.
But seriously, follow the trails downstream of the bridge, there aren't many secrets there and it can get quite busy but there are a few areas. Where the river turns right (?east?), you can cast 15-40ft to reach the fish from shore or skinny water into decent runs as the fast water is on the opposite shore. Not too far from the saltwater boundary.
If you are wading down the river from the middle (quite doable before the heavy rains), look for undercuts near the bank. A "seasoned" fisher told me the Coho like to travel there. Too bad thats where all the gear nabbing roots are too.
Maybe someone else will post info on the hatchery area. There was a decent article a while back in the "Island Fisherman" magazine on fly fishing for Chum on the Puntledge. I've tied up a few sparkle chenille wooly worms in Blue, Green, purple and mixed colors. I'll be out in about a week to test them out.
Cheers,
Alex
... "high water" is when you can fish from your car.