Trout hide in these holes to ambush bait. As tides drive baitfish, speckled trout rise from murky depths to devour unsuspecting menhaden, croaker, minnows, cocahoes, shrimp or other temptations. I also look for irregular features, such as pockets, cuts, or main bayou crossings. Fish gather in little eddies out of the current. At a major bayou crossing, there will be a hole washed out.
Fish stay in there, especially in the fall and winter.
When baitfish migrate through pipeline cuts, fish pull up onto the flats to feed and then drop back into the holes. Many pipelines run parallel to each other and create ideal structure for speckled trout. Spoil banks, dredged mud deposits, separate the two canals and over the years, some spoil banks erode into little more than humps in wide canals. Tides wash numerous cuts into these humps and trout easily move from one canal to another through these cuts. The trout lurk in eddies formed by these humps.