35 20 29 dredge material transport.pdf

Port of Albany Turning Basin, Hudson River, NY Federal Navigation Project 2021

SECTION 35 20 29 Page 1

SECTION 35 20 29

DREDGED MATERIAL TRANSPORT AND PLACEMENT MONITORING

04/06

PART 1 GENERAL

1.1 MONITORING OF CONTAINER VESSELS USED FOR TRANSPORT OF NON-HARS-SUITABLE

("UPLAND") DREDGED MATERIAL

This contract section describes the requirements associated with the NY

District Dredged Material Transport and Placement Monitoring program. The

District monitoring program helps both the Contractors (Dredging

Contractors) and the District to ensure compliance with Section 404 of the

Clean Water Act, Section 103 of the Marine Protection, Research, and

Sanctuaries Act, 40 CFR Part 228, in addition to state environmental laws.

All costs associated with the equipment, software, personnel, and other aspects of the monitoring program must be provided by the Contractor

(Dredging Contractor).

The basic components of the monitoring program are described below. The implementation of the program, using these components, is discussed later.

The term "container vessel" refers to any vessel used to contain, or hold, dredged material (scow, barge, hopper dredge, etc.). The term "transport vessel" refers to any vessel (tugboat, hopper dredge, workboat, etc.) used to move a container vessel. In the case of a hopper dredge, the hopper dredge may act as both a "container vessel" and a "transport vessel". If hopper dredge engines are not used for propulsion, and another vessel

(tugboat, for example) is used to move it, then the hopper dredge would be the "container vessel" and the tugboat would be the "transport vessel".

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES.

SD-01 Preconstruction Submittal

Vessel Monitoring Equipment G

Submit Proof of Vessel Monitoring Equipment Functionality

1.3 MONITORING EQUIPMENT

The Contractor is required, at his own expense, to have all container vessels used to transport dredged material to designated placement or treatment locations (or any other locations as directed by COR) equipped with container Vessel Monitoring Equipment and software, through a contractor (i.e. Dredged Material Monitoring Equipment and Software

Contractor (DMMESC)) not owned or affiliated with the dredging company.

Container vessel monitoring equipment must be installed and operating correctly on any container vessel used to transport dredged material prior

SECTION 35 20 29 Page 2 to ANY dredged material being placed in the container vessel. All container vessel monitoring data collection must begin prior to ANY dredged material being placed in the container vessel and continue throughout the duration of time any dredged material is contained in a container vessel.

The Contractor must provide access and reasonable assistance, to the

DMMESC, at any time during the dredging contract, to complete any modifications/improvements to the container vessel monitoring equipment and/or software that may be required to fulfill the container vessel monitoring requirements associated with the dredging contract.

The following specifications are associated with, and required for, the container vessel monitoring equipment, software, and container vessel monitoring website:

a. A self-contained "black box" unit must be installed on all container vessels, and must be capable of recording on a 24-hour basis, latitude and longitude positions of the container vessel, through DGPS technology, and container vessel draft, using a water pressure sensor, at variable sampling rates ranging from one position and draft value every 6 seconds to one position and draft value every ten minutes, according to NY District requirements. Container vessels used to transport dredged material to upland placement/treatment facilities must include a bin-level sensor in addition to the draft and position sensors.

b. Any transport vessels used to transport dredged material to upland treatment/placement facilities and all dredges used on the project must be equipped with satellite real-time tracking and messaging systems maintained by the DMMESC.

c. Container vessel monitoring data collected by the container vessel monitoring equipment and software must be posted to a website accessible to NY District personal within 24 hours of being unloaded at the upland/treatment facility.

d. A dredging production database that reports the following per trip:

trip number, date of trip, dredge used, transport vessel used, container vessel used, trip destination, estimated container vessel volume, and the time taken for the following - container vessel loading, container vessel de-watering, container vessel transit, container vessel unloading, dredged material disposal from the container vessel, return trip from the placement site and container vessel idleness, as applicable. The dredging production database will also include a map of the dredging site that is updated after the completion of each trip with the location of where dredging associated with each container vessel-loading event occurred.

e. Allow positions of all dredge plants and all transport vessels used in the project, as monitored by the satellite tracking system, to be viewed in real-time, or as soon as satellite data transmission permits.

f. Provide a maintenance log of remote-access and on-site service visits related to hardware/software installation and/or repairs on the container vessel monitoring website.

g. The Contractor shall ensure that the container vessel monitoring equipment is operational 24 hours each day, at all times any dredged

SECTION 35 20 29 Page 3 material is being loaded at dredging sites, when any dredged material is contained within any container vessel, when any dredged material is transported from dredging sites, and when any container vessel is returning from upland facilities.

h. The Contractor must provide the DMMESC with all plans and specs, drawings, etc., associated with the project at least 14 days prior to the start of dredging.

i. The Contractor must provide the DMMESC access to all container vessel monitoring equipment at any time during the dredging project.

j. The Contractor must provide transportation from the shore to any vessel equipped with container vessel monitoring equipment, to the

DMMESC. Transportation must be provided in a timely manner such that the requirements associated with container vessel monitoring continue without interruption.

k. Dredged Material Monitoring Equipment and Software (DMMES) system data must be automatically transmitted from upland container vessels to the dredge for storage and additional transmission to the DMMESC's computer for posting on the container vessel monitoring website.

l. Container vessels used on this project must not be used for any other dredging project unless written approval is obtained from the COR.

m. Continuous monitoring by equipment must be maintained from the time a container vessel is ready to be transported to any upland treatment/placement site, until placement is complete, regardless of the amount of time required.

n. Container vessels loaded with any quantity of dredged material transported from the dredging site, must have all monitoring equipment functioning and recording data.

Container vessels used to transport dredged material to upland facilities are required to have one acoustic bin-level sensor installed in addition to the container vessel draft sensor. The bin level sensor must be integrated with the DMMES system to include bin level data with the data provided by the DGPS receiver and container vessel draft sensor.

The Contractor is responsible for protecting the integrity and functionality of the container vessel monitoring equipment, including the bin sensors. Any monitoring equipment that is damaged or destroyed, for whatever reason must be replaced / repaired prior to using the container vessel again.

The DMMESC will submit a weekly CD/DVD to NY District Operations Division, Dredged Material Management Section, with all monitoring data collected during the previous week, as an update to the DAN-NY software database.

Data will be submitted in formats compatible with the DAN-NY system, and if required, compatible with ArcGIS10 software.

Any problems with operation/function of the container vessel monitoring software and/or equipment should be directed to the DMMESC immediately, and to the NY District at (518) 273-0870.

SECTION 35 20 29 Page 4

1.4 NOTICE TO MARINERS

The Contractor shall request the Coast Guard to publish a NOTICE TO

MARINERS prior to the initiation of any transport/placement/disposal activities. The Contractor shall also coordinate all dredging and transportation activities with the U.S. Coast Guard Sector New York, Waterway Management Division at 718-354-4195 or facsimile

718-354-4096/4190. Every vessel engaged in the transportation of dredged material shall have its name or number, and owner's name, painted in letters and numbers at least fourteen (14) inches high, on both port and starboard sides of the vessel. These names and numbers shall be kept distinctly legible at all times, and no vessel not so marked, shall be used to transport dredged material, or place dredged material.

Container vessel Identification and Certification: A list of all container vessels that will be used, and/or may be used, during this dredging project must be provided to NY District. Container vessels identified for use on the project must be certified to be fully operational, mechanically sound, completely seaworthy, and free of leaks or other defects. Container vessel identification and certification information must be presented to NY

District at the pre-construction meeting.

1.5 FLOATABLE MATERIAL, TRASH, AND DEBRIS

All floatable material, trash, and debris excavated during the dredging project, including, but not limited to, wood, tires, scrap metal, car bodies, shopping carts, etc., must be disposed at an existing approved upland disposal area. Should the Contractor encounter floatable material, and/or trash, and/or debris, a copy of a letter granting the permission of appropriate authorities to use an existing approved upland area must be submitted to the Contracting Officer and/or his Representative. Floatable material, and/or trash, and/or debris must never be transported within a container vessel, regardless of the source of the items/material. Only approved dredged material shall be transported to upland treatment/placement locations.

1.6 LOADING AND TOWING

The following requirements are applicable for the loading and towing of vessels containing Dredged Materials.

The American Bureau of Shipping (ABS) load lines will be required for all

Contractors or its authorized dredging or towing contractors using unmanned dump scows towing and heading for placement sites beyond the US Boundary lines.

Plimsoll mark disk and Load lines shall be painted and maintained to be clearly visible on the scow.

The Tug captain shall be informed of any temporary repairs made to the scow prior to departure.

Scows shall not be overloaded relative to its appropriate A-B Load Line.

Appropriate A-B Load Lines (draft) shall be included on the USACE-TPL.

Loads should be evenly distributed within the scow and water introduced into the scow during the loading process shall be kept to a minimum.

SECTION 35 20 29 Page 5

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

Not used.

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