ASI FINAL Report-Signature Page_061920.pdf
PDF 1 MB Posted
- Solicitation number
- W912DS22B0012
About this file
This document provides details for a federal maintenance dredging solicitation. The U.S. Army Corps of Engineers, New York District, is seeking bids to dredge approximately 150,000 cubic yards of material from Flushing Bay and Creek, New York to a depth of -15 feet MLLW plus 2 feet of allowable over-depth. Dredged material consists primarily of sand, silt, and clay. Work must be performed using a mechanical dredge with a closed clamshell environmental bucket due to state permit restrictions, and multiple scows and tugboats will be needed for dredging and transport operations. Bids are due within 35 days of notification, and the apparent low bidder must provide all required permits for dredging, transport, dewatering, processing and final placement of material within this timeframe. Awarded contractor must commence work within 5 days of notice to proceed and maintain a production rate of at least 2,250 cubic yards per day to minimize vessel traffic impacts during the anticipated September to November 2022 performance period. The work is estimated to cost between $10-25 million.
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Text version
| Table of Contents |
| Table 1- DGPS Coordinates and Project Depth |
| Sample Locations Maps |
| Figure 1- Anchorage Area |
| Figure 2- Small Maneuvering Area |
| Figure 3- Maneuvering Area |
| Figure 4- Branch Channel |
| Figure 5- Main Channel |
| Table 2- Sample Identification and Compositing Scheme |
| Table 3- Results of Physical and TOC Analyses |
| Appendices |
| Appendix A- Core Logs |
| Anchorage Area Core Logs |
| Small Maneuvering Area Core Logs |
| Maneuvering Area Core Logs |
| Branch Channel Core Logs |
| Main Channel Core Logs |
| Appendix B- Photographs |
| Anchorage Area |
| Small Maneuvering Area |
| Maneuvering Area |
| Branch Channel |
| Main Channel |
| Appendix C- Chains of Custody |
| Appendix D- Sample Use Forms |
| Appendix E- Grain Size Distribution Graphs and Raw Data and % Moisture |
| Appendix F- TOC Raw Data and SRM Control Chart |
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