Dredging. Dredging is completed, as needed, by utilizing a hydraulically operated boom-type excavator. The excavator has a wide, flat-bottomed bucket that scrapes down one side of a watercourse, rounds out the bottom and comes up the opposite side in one continuous motion. Thus the result leaves the ditch with inclined sides and a round bottom feature that minimizes side sloughing and erosion into the bottom of a ditch. All dredged material is deposited landward of the ditch so that it will not return to the water and can later be moved back into the adjoining field or be hauled away when and where necessary. When work is completed in ditches that are too large for a boom-type excavator, a dragline-type excavator is utilized. The process is typically the same, except that a dragline excavator works from the middle of the ditch to one side and then works the opposite side in a separate similar manner.
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Samples: wdfw.wa.gov, wdfw.wa.gov, wdfw.wa.gov
Dredging. Dredging is completed, as needed, by utilizing a hydraulically operated boom-type excavator. The excavator has a wide, flat-bottomed bucket that scrapes down one side of a watercourse, rounds out the bottom and comes up the opposite side in one continuous motion. Thus the result leaves the ditch with inclined sides and a round bottom feature that minimizes side sloughing and erosion into the bottom of a ditch. All dredged material is deposited landward of the ditch so that it will not return to the water and can later be moved back into the adjoining field or be hauled away way when and where necessary. When work is completed in ditches that are too large for a boom-type excavator, a dragline-type excavator is utilized. The process is typically the same, except that a dragline excavator works from the middle of the ditch to one side and then works the opposite side in a separate similar manner.
Appears in 1 contract
Samples: wdfw.wa.gov