Fish often lurk at the mouths of such cuts. To prevent this, many anglers only fish pipelines at odd times or during the week when fewer boaters travel through an area. Typically, anglers venture from marinas at first light or within an hour of daylight. If I'm not the first one out of the ramp, I'll usually start on the lakes and other points. I'll give it about an hour for the boat traffic to calm down and then hit the pipelines.
Anglers fishing in or near the canals use several baits to attract trout.
During cold weather, they need to go deeper and slower. Baits that bounce bottom or flit slowly over holes often entice strikes. Let the baits sink to the bottom, jig them up and then let the baits flutter down to the bottom again. If this doesn't solict a strike, try a slow steady retrieve just above the bottom. Hot colors in soft plastics include purple and chartreuse, avocado and chartreuse, avocado and red, red and white, glow and chartreuse or smoke.