10/15/2023 0 Comments What is a dredge cut![]() ![]() Those export pumps lower water levels in the southern Delta below that which would naturally occur in this tidal system. The situation is complicated by the operations of the State Water Project and federal Central Valley Project export pumps in the southern Delta. However, endangered species law and related environmental regulations now make any such dredging too costly for any RD or landowner to undertake. This not only helped maintain adequate depth for diversions, but also helped maintain flood flow capacity and in-water habitat. ![]() When channel reaches became clogged, the local Reclamation Districts (“RD”) or diverters were able to dredge the problem areas to reestablish channel capacity. This loss of capacity creates serious problems for may beneficial uses, and especially agricultural diversions.ĭelta channels historically accumulated sediment at times and had sediment washed out during high flows at other times. In recent years, areas such as Middle River, Old River, Paradise Cut and Sugar Cut/Doughty Cut have lost significant capacity. Over the years many of the southern Delta channels have degraded due to the accumulation of sediments. ![]()
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