Mechanical Levee Construction Sample Clauses

Mechanical Levee Construction. The Specifications contained an “Order of Work” provision for “Retaining Levees,” see JX 2 (Specs.) at 100, ¶ 1.4.3, providing that all mechanical levee construction was to be “fully complete . . . prior to beginning work on placement of the Hydraulically Constructed Levees,” id. ¶ 1.4.3(1). This provision specified that the contractor was to construct a new drop-outlet structure17 at the northeast corner of Lost Lake, modify the existing drop-outlet structure at the northwest corner of Lost Lake, and mechanically construct the portions of the levee located on the south side of Lost Lake and near both Drop-Outlet structures prior to placing the hydraulically-constructed part of the new perimeter levee (hydraulic levee) on the west, east and north sides of Lost Lake. Id.; see also JX 5 (Drawings) at 14 nn.8–9. 16“New work [or “virgin”] material . . . [is] earth [taken from] . . . areas that have never been excavated before.” Tr. at 395:32–34 (Xxxxxx). New work material is excavated during “new work dredging,” defined as “the creation or alteration of an existing channel to a prescribed depth or width.” JX 98A (Xxxxxx Dep.) at 20:8–10. By contrast, “[m]aintenance dredging is the dredging of a channel that has previously been dredged to its authorized depth, and it’s being dredged again to remove material that has shoaled in since the time it was dredged.” Id. at 19:14–18; see also JX 103A (Xxxxx Dep.) at 43:1–5 (“Maintenance dredging is basically cleaning up an area that’s been dredged before. It’s not virgin dredging, so it would be removing silt and deposits that have happened after dredging has already taken place.”). 17The drop-outlet structures, also known as spill boxes, Tr. at 3198:24–3199:31 (XxXxxxxx), “control the discharge of fluids [that accumulated in Lost Lake] back into the . . . San Jacinto River,” id. at 500:19–20 (Xxxxxx). A drop-outlet structure contains a “mechanism .