Contents
2...... Planning
on Regular Marine Travel Routes
2.1 Construction Works involves the Marine
Travel Routes
2.2 Design Criteria of Regular Marine Travel
Routes (RMTR)
2.2.1 Hotspots
of Chinese White Dolphin in Brothers Island
2.2.2 Existing
Navigation Channel and Marine Traffic
2.2.3 Practice
of Navigation Safe
2.2.4 Restricted
Areas and Height Restriction of Hong Kong International Airport
2.2.5 Types
of Working Vessels
2.3 Selected Regular Marine Travel Routes
3...... Design
Criteria of Regular Marine Travel Routes (RMTR)
3.2 Method of Implementation and Monitoring
3.3.1 Considerations
of Operation Procedure
Appendix
2 Past
Marine Travel Routes
Appendix
3 Proposed
Marine Travel Routes
The purpose of this Regular Marine Travel Routes Plan is to detail the planning, implementation and monitoring method to be taken by Leighton Contractors (Asia) Limited and Chun Wo Construction & Co., Ltd Joint Venture (known as the JV) and its subcontractors and suppliers during construction of the Hong Kong Boundary Crossing Facilities – Passenger Clearance Building and associated works under Highways Department Contract number HY/2013/01 which is part of the Hong Kong – Zhuhai – Macao Bridge during the construction activities that involve using the marine travel routes within Hong Kong.
The purpose of this plan is to minimize the chance of vessel collision and the disturbance to the Chinese White Dolphins.
The preparation and implementation of this Regular Marine Travel Routes Plan is a mandatory requirement under section 2.8 of the Environmental Permit no. EP-353/2009/K.
This Regular Marine Travel Routes Plan applies to the activities of the JV during the construction of Contract HY/2013/01.
The works for HY/2013/01 comprise:
· Construction of Passenger Clearance Building (PCB) including architectural and builders works, structural steel roof and reinforced concrete frames, basement, piled foundations, aluminium roof, curtain wall facades, building services and electrical and mechanical works;
· Installation of District Cooling System including seawater cooling intake pumping station, seawater intake and discharge water pipelines work; Installation of Chilled water cooling pipelines system, heat exchanger and chilled pumping system;
· Construction of transport and associated facilities connecting to the PCB entailing the Emergency Vehicular Access, an at-grade mainland side drop-off area, an Hong Kong side elevated drop-off deck and 8 nos. of footbridge links;
· Construction of a public toilet, 6 nos. of C&ED observation booths, a generator set building and a refuse storage & material recovery chamber;
· Construction of a section of 70m common utilities enclosure and staff subway and civil provisions for associated electrical and mechanical works;
· Construction of drainage, sewerage, fresh water & flushing water supply and utilities & service works;
· Construction of civil provisions, including draw pits & ducting for Traffic Control and Surveillance System (TCSS) and Extra Low Voltage System (ELV);
· Construction of box culvert A;
· Construction of 2 nos. of vehicular bridge abutments at mainland side pickup area earthmound;
· Construction of geotechnical works including top up the existing earth mound from +11.5mPD to the finished level as stated in the Contract, reinforced earth slope and fill slopes and special backdrop manhole at mainland side pickup area earthmound;
· Landscape hardworks and softworks;
·
Delivery
of steel roof segment by marine transportation; and
· Other works which are shown on the Drawings or specified in the Specification or which may be ordered in accordance with the Contract.
The site location plan is shown in Appendix 1.
The work scope of this
Contract is the construction of Passenger Clearance Building which is a land
base one. The oversized construction materials such as steel roof segment were
transported by vessel from August 2016 to April 2017 while other steel canopy
components were transported from April to June 2017.
The oversize construction materials were transported from Zhuhai, Zhongshan
or Machong. Please refer to Appendix 2 for the marine routing when the oversize construction materials were
transported from Zhuhai, Zhongshan or Machong in the past.
Seawater outfall construction involved the transfer of pre-casted
construction material in the work area by crane barge from April to May 2017.
Please refer to Appendix 2 for the marine routing of crane barge from Yau Ma Tei anchorage point
to the work area of seawater outfall in the past.
The marine travel route was only for the transportation of oversize
materials to site and travelling of construction vessel for seawater outfall
construction works, there was no transportation of construction waste or
passenger or other general use using marine vessel in the past.
Due to land constraint, some oversize materials from the dismantling
works at the loading and unloading point will be transported to work area 4
(WA4) at To Kau Wan or Hongkong United Dockyards (HUD) at Tsing Yi through barge.
Please refer to Appendix 3 for the
marine travel routes of crane barge from Tuen Mun Typhoon Shelter to loading
and unloading point of Passenger Clearance Building and from loading and
unloading point to WA4 or HUD. It is anticipated to start in December 2017 and
complete within three months. Additionally, there are two routes required to
the Typhoon Shelter from the loading and unloading point in case of Typhoon
occurrence. The two additional typhoon shelter locations are at Hei Ling Chau
Typhoon Shelter and Tuen Mun Typhoon Shelter. Please refer to Appendix 3 for the marine routes from the
loading and unloading point to Hei Ling Chau Typhoon Shelter / Tuen Mun Typhoon
Shelter.
Additionally, there will be backfilling of rocks at the loading and
unloading point when the dismantling works are completed. The rocks will be
delivered to site through barge from Zhuhai China. Please refer to Appendix 3 for the marine travel route for
the transportation of rocks from Zhuhai to the loading and unloading
point.
The marine travel route is only for the transportation of oversize
materials from site to WA4 or HUD and transportation of rocks from Zhuhai to
site for backfilling. There will be no transportation of construction waste or
passenger or other general use using marine vessel.
The design criteria of RMTR are summarized as
follows:
Latest available data of monitoring of marine
mammals in Hong Kong Waters collected under the Project and issued by
Agriculture, Fisheries and Conservation Department will be used as reference
information to align the marine travel routes of project related work fleets.
The fundamental principle is that the routes will not go through the dolphin
hotspots in Brothers Island.
Existing Fairway Urmston Road Channel will be
selected as the main travel route for delivery of material to HKBCF site.
Please refer to Appendix 4 for the Fairway Layout.
The licensed captain is the authorized person to
control the working fleeting under safe marine operation. He will follow all
safe navigation requirement and international practice with assistance from
navigation aids as well as support from marine traffic control team of Marine
Department.
The marine travel route will be adjusted locally to
cater for any incident so as to ensure safe navigation channel and are very
useful tool to assist capture to determine the proper travel routes under real
situation and any unexpected incidents.
The navigation will also be affected by natural
constraints such as wind, current, wave, etc. which may also affect the marine
travel routes locally.
There will be no transportation of oversize
materials under increment weather.
There are eight restricted areas in the vicinity of
Hong Kong International Airport where working fleets are not allowed to pass
through unless authorization is granted. Moreover, the airport height
restriction limit will also govern the marine travel routes of working fleets
for the delivery of prefabricated cellular structure from Mainland China to
HKBCF site.
Various types of working vessels for oversize
material transportation are list below. Please refer to Appendix 5 for the photos of vessels.
·
Flat Top Barge
·
Tug boat
·
Crane Barge
Existing marine parks, anchorage areas in Sham Shui
Kok and Tuen Mun and the like are also considered during designing the proper
marine routes for this Project.
Based on the abovementioned designed criteria, the
marine travel routes are proposed and presented in Appendix 3.
The Project Director is the ultimate person for
minimizing ecological impacts from marine traffic. The supervising staff
including Project Manager, Construction Manager, Superintendent, Site Forman
and the representative of subcontractors and specialist will assist the Project
Director onsite to implement all precautionary and mitigation measures approved
by the Statutory Authority and the Engineer.
The construction
works are divided into onsite and offsite works. Onsite works include all
construction activities within HKBCF. As the working fleets are mainly on a
land base, it is anticipated that there would be no impacts to the Chinese
While Dolphins.
Offsite works are
mainly the delivery of material such as segments, beams and platforms from
Pearl River Estuary. As these working fleets will pass though Urmston Road
Channel, marine parks and hotspots of CWD in North east and Northwest of Lantau
Island, therefore tight marine travel routes control will be implemented as
below:
·
The vessel for transporting the materials will be installed
GPS system or course recorder system for the purposes of recording the marine
travel route.
·
The daily record of marine travel route of offsite
working fleets will be collected and filed by supervising staff for inspection
and monitoring purposes. Warning will be noticed to the captain and his
shipping company or material supplier if vessel track log showed the approved
marine travel route is not followed.
·
Graphical plots of all the vessel tracks overlaid
on HK base map shall be provided at monthly interval to ER, ETL, IEC/ENPO to
demonstrate the conformance of the vessel to the proposed route after the
commencement of the delivery of oversize construction materials.
The main issue with the Chinese White Dolphin is a
moving vessel striking and injuring an animal during the period of travel.
Information regarding the locations of frequent sighting near the proposed
vessel routes indicated that the following would also be needed to minimize the
chance of a vessel striking a dolphin.
If any dolphins are sighted within 250m of a vessel,
then the vessel will slow to a speed no greater than 5 knots for at least 3
minutes after the last sighting.
A training section will be provided to barge
operator to increase their awareness on the protocol for “dolphin friendly”
vessel operation and minimize the chance of vessel collision.
Trainers of JV are trained
by a dolphin specialist approved by AFCD. The trainers will provide training
section to barge operators before the commencement of the transportation of
oversize materials to construction site. Refreshment of the training will also
be provided to barge operators on bi-monthly basis.