A.01.23 Rudee Industry Day QuestionAnswer W9123621B5024 12042020.pdf
Date Originally Posted
Dec. 8, 2020, 4:08 p.m.
1 W91236-21-B-5024: Rudee Inlet Industry Day, November 16, 2020 1PM – 3PM Question-Answers Question: Are the Jetty Areas required dredging for the project? Concern that an ocean capable dredge may not have the capabilities to perform dredging at depth such a small depth in the conditions at the Jetty Areas. Answer: Yes, the Jetty Areas (North and South) are currently part of the required portion of the project. These may be descoped or added as an optional contract items (to be awarded at the time of contract award) prior to the solicitation to allow a singular ocean going dredging plant perform the work. Question: Is the Area north of the defined Lake Wesley boundary in the technical plans available for plant staging and contractor use? Answer: Yes, the area between the Federal channel prism and the defined boundary of Lake Wesley is available for plant staging and contractor use. The floating dock and cluster piles at Croatan Point in this area are available for contractor mooring and transfer operations. Question: Will there be any allowable dredging depth beyond the depths listed in the plan sheet estimated quantity table? Answer: No, the project feature required depths and the associated allowable overdepths represent the maximum permit depth associated with each project element. Any incidental dredging beyond allowed increment will be considered non-pay yardage. These depths will not be increased prior to or during the construction activity. Question: Are other types of dredging plant (not hydraulic cutterhead) allowed to perform the scoped work? Answer: Norfolk District environmental permits for the project require the use of a hydraulic cutterhead dredge to perform the required dredging and placement. Alternative types of dredging will not be permitted for this iteration of work. Question: Can you explain the reason for the differing required dredging depths in Cross Section C-C’? Answer: Cross Section C-C’ shows the dredging profile section through the Entrance Channel between Stations 34+75 and 37+03.2. There are two required depths associated with this section to reflect the two different dredging prisms, one part of the Federal project and one an element of additional work. The required dredging in the Entrance Channel to a depth of -14 feet 2 MLLW is the Federal project (to be paid with Federal appropriations. The required dredging prism below the Entrance Channel to -15 feet MLLW with one foot of allowable overdepth to -16 feet MLLW is the additional work element, referred to as the Transition Area (transitioning depth from the Entrance Channel to the Deposition Basin). The Transition Area is to be paid for with local sponsor funds. To keep these two cost accounts separate, the dredging volumes in the two required prisms between station 34+75 and 37+03.2 will be on separate contract line items. The two required depths are shown on the Cross section C-C’ to represent that difference between the two dredging prisms and highlight that the volumes in each will need to be costed for multiple bid items. Question: Can the portion of the Safety Area that is available for contractor plant staging and use be delineated on the technical plans during solicitation? Answer: Yes the portion of the Safety Area that is available for the contractor will be delineated in the plans prior to solicitation. Dimensions of the area will also be included.