2 Contract INFORMATION

Background

2.1 The proposed Hong Kong - Zhuhai - Macao Bridge Hong Kong Link Road (HKLR) is 12km long connecting the Hong Kong-Zhuhai-Macao Bridge (HZMB) at the HKSAR Boundary with the Hong Kong Boundary Crossing Facilities (HKBCF) situated at the north eastern waters of the Hong Kong International Airport, opening a new and direct connection route between Hong Kong, Macao and the Western Pearl River Delta.

2.2 The HKLR comprises a 9.4km long viaduct section from the HKSAR boundary to Scenic Hill on the Airport Island; a 1km tunnel section to the reclamation formed along the east coast of the Airport Island and a 1.6km long at-grade road section on the reclamation connecting to the HKBCF. The tunnel section of HKLR will pass under Scenic Hill, Airport Road and Airport Railway to minimize the environmental and visual impacts to Tung Chung residents.

2.3 An application (No ESB-110/2003) for an Environmental Impact Assessment (EIA) Study Brief under Section 5(1) of the Environmental Impact Assessment Ordinance (EIAO) was submitted by Highways Department (the Project Proponent) on 8 October 2003 with a Project Profile (No. No. PP-201/2003) for the Hong Kong - Zhuhai - Macao Bridge Hong Kong Section and North Lantau Highway Connection. The Hong Kong - Zhuhai - Macao Bridge Hong Kong Section and North Lantau Highway Connection has subsequently been renamed as HKLR. EPD issued an EIA Study Brief (No: ESB-110/2003) in November 2003 to the Project Proponent to carry out an EIA study.

2.4 An EIA Study (Reg. No. AEIAR-144/2009) has been undertaken to provide information on nature and extent of environmental impacts arising from the construction and operation of HKLR. The Environmental Permit was issued on 4 November 2009 (Permit No. EP-352/2009). Pursuant to Section 13 of the EIAO, the Director of Environmental Protection amends the Environmental Permit (No. EP-352/2009) based on the Application No. VEP-339/2011 and the environmental Permit (Permit No. EP-352/2009/A) was issued on 9 November 2011 for HKLR to the Highways Department as the Permit Holder. Subsequently, the Director of Environmental Protection amends the Environmental Permits (No. EP-352/2009/A, EP-352/2009/B, EP-352/2009/C) based on the Application No. VEP-409/2013, VEP-411/2013 and VEP-459/2014 respectively. The environmental Permit (Permit No. EP-352/2009/D) was then issued on 22 December 2014.

2.5 Figure 1a-d shows the layout of the Contract and the scope of the Contract works comprises the following major items:

· a dual 3-lane carriageway in the form of viaduct from the HKSAR boundary (connecting with the HZMB Main Bridge) to the Scenic Hill (connecting with the tunnel under separate Contract No. HY/2011/03), of approximately 9.4km in length with a hard shoulder for each bound of carriageway and a utilities trough on the outer edge of each bound of viaducts;

· a grade-separated turnaround facility located near San Shek Wan, composed of sliproads in the form of viaduct with single-lane carriageway bifurcated from the HKLR mainline with an elevated junction above the mainline;

· provision of ancillary facilities including, but not limited to, meteorological enhancement measures including the provisioning of anemometers and modification of the wind profiler station at hillside of Sha Lo Wan, provisioning of a compensatory marine radar, and provisioning of security systems; and

· associated civil, structural, geotechnical, marine, environmental protection, landscaping, drainage and highways electrical and mechanical (E&M) works, street lightings, traffic aids and sign gantries, marine navigational aids, ship impact protection system, water mains and fire hydrants, lightning protection system, structural health monitoring and maintenance management system (SHM&MMS), supervisory control and data acquisition (SCADA) system, as well as operation and maintenance provisions of viaducts, provisioning of facilities for installation of traffic control and surveillance system (TCSS), provisioning of facilities for installation of telecommunication cables/equipments and reprovisioning works of affected existing facilities/utilities.

Contract Organisation

2.6 Different parties with different levels of involvement in the Contract organization include:

Ÿ Supervising Officer’s Representative (SOR) – Ove Arup & Partners Hong Kong Limited (ARUP)

Ÿ Contractor –Dragages -China Harbour-VSL JV (DCVJV)

Ÿ Environmental Team (ET) – Cinotech Consultants Ltd. (Cinotech)

2.7 The proposed project organization and lines of communication with respect to the on-site environmental management structure are shown in Figure 2. The key personnel contact names and numbers are summarized in Table 2.1.

Table 2.1 Key Contacts of the Contract

Party	Position	Name	Phone No.	Fax No.
SOR (ARUP)	CRE	Mr. Michael Chan	3767 5803	3767 5922
		Mr. Colin Meadows	3767 5801
ENPO/IEC (Environ)	Environmental Project Office Leader	Mr. Y. H Hui	3465 2888	3465 2899
	Independent Environmental Checker	Mr. Antony Wong	3465 2888	3465 2899
Contractor (DCVJV)	Deputy Project Director	Mr. W.K Poon	3121 6638	3121 6688
	Environmental Officer	Mr. CHU Chung Sing	3121 6672
	24-hour Hotline	--	6898 6161	--
ET (Cinotech)	Environmental Team Leader	Dr. Priscilla Choy	2151 2089	3107 1388

2.8 ENVIRON Hong Kong Ltd. (Environ) is employed by the Highways Department as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO) for the Project.

Construction Programme

2.9 A copy of Contractor’s construction programme is provided in Appendix A.

Summary of Construction Works Undertaken During Reporting Period

2.10 The major site activities undertaken in the reporting period included:

March 2015:

Land Viaduct (P85 to Abutment at SHT) & Marine Viaduct (P81 - P84)

(a) The last pile for land viaduct was concreted in this reporting period.

(b) Total 169 pours for column were completed with 7 pours in this reporting period; 61 columns were completed to top level (30 gridlines - P85 to P114). Land viaduct column completed.

(c) P81R&L excavation works and waling & struts installation work are in progress.

(d) Sewage diversion at P82 is in progress.

(e) P82R pre-bored sheet pile were completed, P82L pre-bored sheet pile in progress.

(f) P83R pile cap excavation work and waling & struts installation is in progress.

(g) Portal Works:

Pier Location	Progress
P84	Formation work is in progress, steel bracket system to be erected;
P87	Erection of steel girders and cross beams is in progress;
P88	Erection of vertical formwork and kickers is in progress;
P93	Steel fixing for portal is in progress;
P94	Portal was concreted on 24 March 2015;
P95	Portal was concreted on 13 March 2015, removal of vertical formwork is in progress;
P96	Removal of falsework is in progress;
P98	Removal of steel bracket system is in progress;
P99	Removal of falsework is in progress;
P100	Removal of falsework was completed;
P101	Removal of falsework was completed;

(h) Construction of drainage work near P115 Abutment was completed, adjusting manhole covers is in progress.

(i) Construction of temporary foundations for P114 segment temporary supports at R & C Lines were completed, pile caps construction at L-Line is in progress.

Marine Viaduct (P0 to P80)

RCD Method (except P68):

(a) Piling jackets were dismantled at D18 and P26.

(b) Pile excavations and casing installation are in progress at P69. 4 marine piles using RCD method were concreted in the reporting period.

(c) Inter-face coring tests were carried out at P5, P6, P10, P11 & P26.

(d) No Full depth coring test was carried.

(e) Sonic tests were carried out at P5, P6, P10, P11 & P69.

(f) Grouting works were carried out at P26.

Progress at P68

(a) Temporary platform formation is on-going (about 16,000T of grade 150 fill placed and 2,000T of rock armour).

(b) Jacket was installed on RHS and casing driven.

(c) Logistic platform was completed.

Disposal from Marine Works

(a) The disposals in this reporting period are shown in below table.

Disposal Location	No of Trip	Type of Materials
TM38	0	Inert Materials
TMCLK	0	Inert Materials
HK Open Sea Mud Pits	1	Types II Marine Mud
Cross Boundary Disposal	5	Type I Marine Mud

Pilecap Construction:

(a) 8 precast cap shells were installed P1, P12, P54 & P58.

(b) Stage 1 concreting was completed at P12, P17, P22 & P23.

(c) Stage 1 works is in progress at P1, P12, P17, P22 & P23.

(d) Stage 2 concreting was completed at P3, P4, P17R, P22 & P25.

(e) Stage 2 works is in progress at P3, P4, P17, P22, P23 & P25.

(f) Kingpost installation and associated steel welding works for precast shell installation are in progress at P7, P12, P13, P15 & P54.

(g) Concrete trimming and advanced trimming (inside casing) works were carried out at P2, P7, P15, P19-F1 &F2, P22, P55, P79 & P80.

(h) Submerged pilecap works with cofferdam:

Pier Location	Side	Progress
P70	L	Concreting works of pile cap completed on 13-Jan-15
	R	Concreting works of pile cap completed on 5-Jan-15
P71	L	Concreting works of pile cap completed on 6-Oct-14
	R	Concreting works of pile cap completed on 18-Dec-14
P72	L	Concreting works of pile cap completed on 10-Mar-15
	R	Concreting works of pile cap completed on 31-Jan-15
P73	L	Concreting works of pile cap completed on 4-Dec-14
	R	Concreting works of pile cap completed on 3-Jan-15
P74	L	Concreting works of plug completed on 2-Mar-15; Trimming of pile head concrete is in progress
	R	Excavation works is in progress
P75	L	Rock excavation is in progress
	R	Rock excavation is in progress
P76	L	Trimming of pile head concrete is in progress
	R	Concreting works of plug completed on 16-Mar-15; Cleaning works before blinding layer is in progress.
P77	L	Concreting works of pile cap completed on 24-Mar-15
	R	Steel Fixing works of pile cap is in progress
P78	L	Concreting works of pile cap completed on 24-Jan-15
	R	Concreting works of pile cap completed on 30-Jan-15

In-situ Column Construction

(a) 1^st lift works is in progress at P16, P21, P27, P28, P29, P30, P31, P53, P59 & P70.

(b) 1^st lift concrete was poured at P27, P28, P29, P30, P31, P53, P59 and P70.

(c) 2^nd lift works and poured at P53.

(d) Pier head works is in progress at P50, P61 & P62.

(e) Pier head concreting was poured at P50, P61 & P62.

Precast Column Erection

(a) P29, P30 & P32 - Base units installed.

(b) P32 - P44 All precast units now installed.

(c) P43 - Vertical nailing tendons stressed.

In-situ Double Blade Column Construction

Pier Location	Side	Progress
P18	L	To be started in April 2015
	R	To be started in April 2015
P19	L	Completed 4th and 5th lift in progress
	R	Completed 3rd & 4th lift and started for 5th lift
P20	L	All cast in March 2015, total 7th lift
	R	All cast in March 2015, total 7th lift
P71	L	All cast in February 2015, total 3 lifts (including pierhead)
	R	All cast in March 2015, total 3 lifts (including pierhead)
P72	L	To be started in April 2015
	R	To be started in April 2015
P73	L	Completed 1^st lift and 2^nd lift in progress
	R	Completed 1^st lift and 2^nd lift in progress

Marine Portal

(a) Steel fixing of portal at P52 is in progress. Bearing installation and faleswork of portal at P60 were completed and soffit formwork is in progress.

Deck Erection

(a) Setting up of Equipment:

Type of Equipment	Status
Lifting Frames 1 (LF1)	Assembly of the first set of LF1 is on-going at WA4; Steelwork for the 2^nd set of Lifting Frames is under fabrication with some deliveries commenced.
Lifting Frames 3 (LF3)	Fabrication of LF3 in China has commenced. Some major components have been completed, and some deliveries have been commenced. Assembly of the first 4 sets of LF3 is targeted to be commenced by mid-April at WA4.
Launching Gantry 1 (LG1)	Segment erection at P110, P111 & P112R&C completed. Gantry has been commissioned for launching and launched to P113 & P114 is completed
Launching Gantry 2 (LG2)	Load test and commissioning of the first part have been completed.

(b) Segment erection:

- A cumulative total of 140 segments have been erected

Type	Location of Segments erected in this reporting period	Number of Segments erected in this reporting period	Cumulative No. of Segments erected (up to 28th of each month)
LG1*	P110 & P111	16	112
LG2	P47	4	4
SOP	P65	4	24

Precast Segment

(a) Segment Casting:

Item	Number in this reporting period	Cumulative No. of Precast Segment Completed (up to 28th of each month)
Segment Cast	41	1850

(b) Off-site Storage:

Area	No. in Off-site Storage
A1	134
A2	228

Precast Concrete Shell Casting

(a) Summary of precast shell cast in the precast yard:

Type of Shell	Number of Precast Shell Cast in this reporting period	Cumulative No. of Precast Shell Completed (up to 28th of each month)
CP1	6	80
CP2	Completed	12
CP3	1	8
CP4	Completed	8
CP5	Completed	6
CP6	1	4

Precast Column & Precast Pier Head Casting

(a) Progress of the precast column & precast pier head casting:

- All the 5 moulds are in service for precast production.

- Totally 25 precast elements (6 piers with 3m high, 12 piers with 6m high, 4 monolithic pier heads and 3 pier heads with bearing support) were cast in this reporting period.

- Cumulatively 162 precast elements have been produced.

Delivery for Precast Concrete Elements (by barge)

(a) Precast Deck Segments:

- Number of additional barges engaged in this period: 6

- Cumulative number of barges: 11 (2 barges allocated for long span storage)

- Number of Deck Segment deliveries in this period: 7 trips

- Cumulative number of Deck Segment deliveries: 43 trips

Segment Types	Segment Delivered in this reporting period	Cumulative No. of Precast Segment Delivered (up to 28th of each month)
A	12	40
B	0	0
C	0	0
D	0	0
E	22	164

(b) Precast column units:

- Number of additional barges engaged in this period: 0

- Cumulative number of barges: 1

- Number of column unit deliveries in this period: 5 trips

- Cumulative number of column unit deliveries: 19 trips

Unit Types	Number of units delivered in this reporting period	Cumulative No. of Precast Column Delivered (up to 28th of month)
3m	4	16
6m	8	34
PH1	8	18
PH2	0	8

(c) Temporary storage of long span segments:

- First barge loaded with four long span segments on 26 March 15.

- Preparation of 2^nd Long-Span storage barge on going.

April 2015:

Land Viaduct (P85 to Abutment at SHT) & Marine Viaduct (P81 - P84)

(a) P81L pile cap excavation works was completed and reinforced concrete works is in progress. P81R pile cap excavation works and waling & struts installation works are in progress.

(b) P82L pre-bored sheet pile is in progress.

(c) P83R pile cap excavation work and waling & struts installation is in progress.

(d) Portal Works:

Pier Location	Progress
P84	Steel bracket and girders erection completed;
P87	Erection of steel bracket system completed, formwork erection is in progress;
P88	Portal concrete was poured on 24 April 2015;
P90	Formation work is in progress;
P91	Erection of steel cross beams and falsework is in progress
P93	Portal concrete was poured on 11 April 2015, removal of formwork is in progress;
P94	Removal of falsework is in progress;
P95	Removal of falsework is in progress;
P96	Removal of falsework completed;
P98	Removal of falsework completed;
P99	Removal of falsework completed;

Marine Viaduct (P0 to P80)

Reverse Circulation Drill (RCD) Method (except P68 & P75):

(a) Piling jackets were dismantled at P69.

(b) No pile excavations, casing installation and concrete casting in the reporting period.

(c) Inter-face coring tests were carried out at P6, P57 & P69.

(d) P6-L2 & P69-R1 Full depth coring test was carried.

(e) Sonic tests were carried out at P5, P6, P9, P56, P57 & P69.

(f) Grouting works were carried out at P10, P11, P56 & P69.

Progress at P68 & P75

(a) Temporary platform formation is on-going (about 32,000 tonnes of grade 150 fill and 6,000 tonnes of rock armour placed).

(b) Jacket was installed on right-hand side (RHS) and casing driven.

(c) Excavation to formation (at concrete plug base) level by breaker & chisel at P75 R & L continued.

Disposal from Marine Works

(a) The disposals in this reporting period are shown in below table.

Disposal Location	No of Trip	Type of Materials
TM38	0	Inert Materials
TMCLK	0	Inert Materials
HK Open Sea Mud Pits	0	Types II Marine Mud
Cross Boundary Disposal	0	Type I Marine Mud

Pilecap Construction:

(a) 10 precast cap shells were installed P2L, P7, P13, P15, P26R & P58.

(b) Stage 1 concreting was completed at P1, P54 & P58R.

(c) Stage 1 works is in progress at P1, P15, P54 & P58R.

(d) Stage 2 concreting was completed at P1, P12, P17L, P22 & P23.

(e) Stage 2 works is in progress at P1, P12, P17L, P22, P23 & P54.

(f) Kingpost installation and associated steel welding works for precast shell installation are in progress at P55 & P80.

(g) Concrete trimming and advanced trimming (inside casing) works were carried out at P10, P11, D17-F1, D19-F1, D20-F1, P26R, P54, P55, P56 & P58.(h) Submerged pilecap works with cofferdam:

Pier Location	Side	Progress
P74	L	Trimming of pile head concrete is in progress
	R	Concreting works of concrete beam completed on 29-Apr-15
P75	L	Rock excavation is in progress
	R	Rock excavation is in progress
P76	L	Concreting works of pile cap completed on 20-Apr-15
	R	Steel Fixing works of pile cap is in progress
P77	R	Concreting works of pile cap completed on 2-Apr-15

In-situ Column Construction

(a) 1^st lift works is in progress at P14, P22 & P24.

(b) 1^st lift concrete was poured at P16, P21, P25 & P70.

(c) 2^nd lift works: N/A.

(d) Pier head works is in progress at P53.

(e) Pier head concreting was poured at P59 & P62.

Precast Column Erection

Description	Location completed in this reporting period	Number of Units erected/ Number of Columns completed in this reporting period	Cumulative No. of Piers completed (up to 28th of each month)
Precast Column Base Unit	P28, P29	4	17 (P28-P44)
Precast Column Pier Head	P30, P31	4	15 (P30-P44)
Vertical Tendons Stressed	P39, P40, P41, P42	8	6 (P39-P44)
Grouting Vertical Tendons	P40, P42	4	3.5 (P40, P42, P43L, P44)
Pier Head Concrete	P44	2	1 (P44)

In-situ Double Blade Column Construction

Pier Location	Side	Progress
P18	L	Poured concrete to 1^st lift and 2^nd lift in progress
	R	Poured concrete to 1^st lift and 2^nd lift in progress
P19	L	Poured concrete to 5^th & 6^th lift and started for 7^th lift
	R	Poured concrete to 5^th & 6^th lift and started for 7^th lift
P72	L	Just commenced
	R	Just commenced
P73	L	Poured concrete to 2^nd lift and pier head in progress
	R	All cast in April 2015, total 3 lifts (including pier head)

Marine Portal

(a) Portal at P52 was casted on 18 April 2015.

(b) Steel fixing at P60 is in progress.

Deck Erection

(a) Setting up of Equipment:

Type of Equipment	Status
Lifting Frames 1 (LF1)	Assembly of the first set of LF1 is on-going at WA4; Steelwork for the 2^nd set of Lifting Frames is under fabrication with some deliveries commenced.
Lifting Frames 3 (LF3)	Fabrication of LF3 in China has commenced. Some major components have been completed, and some deliveries have been commenced. Assembly of the first 4 sets of LF3 is targeted to be commenced by mid-April at WA4. 2 sets will be assembled at WA4 by Mid-May
Launching Gantry 1 (LG1)	LG1 in operation and erection of P113-P114 (R&C) is under progress
Launching Gantry 2 (LG2)	Load test and commissioning of the first part have been completed, erection of segments to P46 and P47 in progress

(b) Segment erection:

- A cumulative total of 140 segments have been erected

Type	Location of Segments erected in this reporting period	Number of Segments erected in this reporting period	Cumulative No. of Segments erected (up to 28th of each month)
LG1*	P113 & P114	62	174
LG2	P46-P47	44	48
SOP	P64	4	28

Precast Segment

(a) Segment Casting:

- Segment production has resumed on 20 April 2015.

- Storage for long span & type D segments is still the main issue.

Item	Number in this reporting period	Cumulative No. of Precast Segment Completed (up to 28th of each month)
Segment Cast	75	1925

(b) Off-site Storage:

Area	No. in Off-site Storage
A1	134
A2	228
A3	32

Precast Concrete Shell Casting

(a) Summary of precast shell cast in the precast yard:

Type of Shell	Number of Precast Shell Cast in this reporting period	Cumulative No. of Precast Shell Completed (up to 28th of each month)
CP1	6	87
CP2	Completed	12
CP3	2	10
CP4	Completed	8
CP5	Completed	6
CP6	Completed	4
CP11	1	1

Precast Column & Precast Pier Head Casting

(a) Progress of the precast column & precast pier head casting:

- All the 5 moulds are in service for precast production.

- Totally 37 precast elements (12 piers with 3m high, 15 piers with 6m high, 7 monolithic pier heads and 3 pier heads with bearing support) were cast in this reporting period.

- Cumulatively 199 precast elements have been produced.

Delivery for Precast Concrete Elements (by barge)

(a) Precast Deck Segments:

- Number of additional barges engaged in this period: 0

- Cumulative number of barges: 9

- Number of Deck Segment deliveries in this period: 21 trips

- Cumulative number of Deck Segment deliveries: 64 trips

Segment Types	Segment Delivered in this reporting period	Cumulative No. of Precast Segment Delivered (up to 28th of each month)
A	48	88
B	0	0
C	0	0
D	0	0
E	50	214

(b) Precast column units:

- Number of additional barges engaged in this period: 0

- Cumulative number of barges: 1

- Number of column unit deliveries in this period: 5 trips

- Cumulative number of column unit deliveries: 24 trips

Unit Types	Number of units delivered in this reporting period	Cumulative No. of Precast Column Delivered (up to 28th of month)
3m	2	18
6m	14	48
PH1	2	20
PH2	2	10

(c) Temporary storage of long span segments:

- Number of barges engaged in this period: 1

- Cumulative number of barges: 3

- Second Long-span storage barge loaded with long span segments on
21 Apr 2015

- Preparation of 3rd Long-Span storage barge is ongoing.

May 2015:

Land Viaduct (P85 to Abutment at SHT) & Marine Viaduct (P81 - P84)

(a) P81L pile cap was completed and column construction work is in progress.

(b) P81R excavation works was completed and reinforced concrete works is in progress.

(c) P82L pre-bored sheet pile was completed and P82L&R excavation works are in progress.

(d) P83R pile cap was completed and pre-bored sheet pile was completed.

(e) Portal Works:

Pier Location	Progress
P84	Steel bracket and girders erection completed; Pier head construction is in progress
P86	Formation for falsework is in progress
P87	Steel fixing is in progress, target to concrete by end May 2015
P88	Removal of falsework is in progress
P89	Formation for falsework is in progress
P90	Steel bracket erection completed; Erection of planking and steel cross beams at road side is in progress
P91	Formwork erection completed; Steel fixing is in progress
P92	Erection of soffit formwork and construction of lower bearing plinths is in progress
P93	Removal of falsework completed; Removal steel cross beams is in progress
P94	Removal of falsework and steel bracket completed
P95	Removal of falsework completed

Marine Viaduct (P0 to P80)

RCD Method (locations other than P68 & P75):

(a) Inter-face coring tests were carried out at P8 & D17.

(b) P6-L2 & P9-R2 Full depth coring test was carried.

(c) Sonic tests were carried out at P8, P9 & D17.

(d) Grouting works were carried out at P6, P8, P57 & P69.

Progress at P68

(a) Temporary Rockfill platform formation completed.

(b) Outer and inner permanent casings were installed on left hand side (LHS).

(c) Annulus concrete around casings was cast.

(d) Infill concrete between inner and outer casing was cast.

(e) Torque frame was installed on LHS and right hand side (RHS).

(f) Temporary access to spoil barge was installed.

(g) RCD were set up on LHS.

Progress at P75

(a) Excavation to formation (at concrete plug base) level by breaker & chisel at P75 RHS was completed and levelling/preparation for cofferdam box installation is on-going.

Disposal from Marine Works

(a) The disposals in this reporting period are shown in below table.

Disposal Location	No of Trip	Type of Materials
TM38	0	Inert Materials
TMCLK	0	Inert Materials
HK Open Sea Mud Pits	0	Types II Marine Mud
Cross Boundary Disposal	0	Type I Marine Mud

Pilecap Construction:

(a) 2 precast cap shells were installed P55.

(b) Stage 1 concreting was completed at P2L, P7, P13 & P58L.

(c) Stage 1 works is in progress at P26R.

(d) Stage 2 concreting was completed at P15, P54 & P58R.

(e) Stage 2 works is in progress at P7, P13 & P58L.

(f) Kingpost installation and associated steel welding works for precast shell installation are in progress at P57.

(g) Concrete trimming and advanced trimming (inside casing) works were carried out at P5L, P11, D17-F1, P26R (inside shell), P56 & P57.

(h) Submerged pile cap works with cofferdam:

Pier Location	Side	Progress
P71	L	Backfilling and removal of cofferdam completed on 8-May-15
	R	Backfilling and removal of cofferdam completed on 8-May-15
P73	L	Backfilling and removal of cofferdam started on 20-May-15
	R	Backfilling and removal of cofferdam started on 20-May-15
P74	L	Trimming of pile head concrete is in progress
	R	Concreting works of concrete plug and concrete beam completed and dewatering to the bottom of cofferdam will be carried out
P75	L	Rock excavation is in progress
	R	Rock excavation is in progress
P76	R	Concreting works of pile cap completed on 2-May-15

In-situ Column Construction

(a) 1^st lift works is in progress at P1, P3, P4, 59L-ramp & P78.

(b) 1^st lift concrete was poured at P12, P14, P22, P23, P24, P54 & P59R-ramp.

(c) 2^nd lift works is in progress at P54 and P70R.

(d) 2^nd lift concrete was poured at P70L.

(e) Pier head works is in progress at: nil

(f) Pier head concreting was poured at P53.

Precast Column Erection

Description	Location completed in this reporting period	Number of Units erected/ Number of Columns completed in this reporting period	Cumulative No. of Piers completed (up to 28th of each month)
Precast Column Base Unit	P21, P27	4	19 (P21, P27-P44)
Precast Column Pier Head	Nil	0	15 (P30-P44)
Vertical Tendons Stressed	P37, P38	4	8 (P37-P44)
Grouting Vertical Tendons	P39, P41, P43R	5	6 (P39-P44)
Pier Head Concrete	P42, P43	4	3 (P42-P44)

In-situ Double Blade Column Construction

Pier Location	Side	Progress
P17	L	Works commenced
	R	Works commenced
P18	L	Poured concrete to 3^rd lift and 4^th lift in progress
	R	Poured concrete to 3^rd lift and 4^th lift in progress
P19	L	All cast in May 2015, total 7 lifts
	R	All cast in May 2015, total 7 lifts
P20	L	All cast in March 2015, total 7 lifts
	R	All cast in March 2015, total 7 lifts
P71	L	All cast in February 2015, total 3 lifts (including pierhead)
	R	All cast in March 2015, total 3 lifts (including pierhead)
P72	L	Poured concrete to 1^st lift and 2^nd lift in progress
	R	Poured concrete to 1^st lift and 2^nd lift in progress
P73	L	All cast in May 2015, total 3 lifts (including pierhead)
	R	All cast in April 2015, total 3 lifts (including pierhead)
P77	L	Works commenced
	R	Works commenced

Marine Portal

(a) Formwork removal and remedial works for Portal at P52 are in progress.

(b) Portal at P60 was casted on 16 May 2015.

Deck Erection

(a) Setting up of Equipment:

Type of Equipment	Status
Lifting Frames 1 (LF1)	Assembly of the first & second set of LF1 is on-going at WA4; Steelwork for the 3^rd and 4^th set of Lifting Frames is under fabrication with some deliveries commenced.
Lifting Frames 3 (LF3)	Fabrication of LF3 in China is almost completed for 8 sets. Most of the major components have been completed, and have been delivered to site. Assembly of the first 2 sets of LF3 is completed. The 3^rd and 4^th sets are targeted to be completed by early-June at WA4. Assembly of the 5^th to 8^th sets will commence in June as well.
Launching Gantry 1 (LG1)	LG1 in operation and launching back to P112L is in progress.
Launching Gantry 2 (LG2)	Commissioning completed for segment erection; Load test part 2 for launching scheduled in June.

(b) Segment erection:

- A cumulative total of 140 segments have been erected

Type	Location of Segments erected in this reporting period	Number of Segments erected in this reporting period	Cumulative No. of Segments erected (up to 28th of each month)
LG1	P108 & P113 & P114	46	220
LG2	P46-P47	32	80
SOP	P44 & P63	8	36

Precast Segment

(a) Segment Casting:

- Storage for long span & type D segments is still the main issue.

Item	Number in this reporting period	Cumulative No. of Precast Segment Completed (up to 28th of each month)
Segment Cast	164	2089

(b) Off-site Storage:

Area	No. in Off-site Storage
A1	134
A2	226
A3	98

Precast Concrete Shell Casting

(a) Summary of precast shell cast in the precast yard:

Type of Shell	Number of Precast Shell Cast in this reporting period	Cumulative No. of Precast Shell Completed (up to 28th of each month)
CP1	3	90
CP2	Completed	12
CP3	2	12
CP4	Completed	8
CP5	Completed	6
CP6	Completed	4
CP11	Completed	1
CP12	1	1

Precast Column & Precast Pier Head Casting

(a) Progress of the precast column & precast pier head casting:

- All the 5 moulds are in service for precast production.

- Totally 30 precast elements (5 piers with 3m high, 20 piers with 6m high, 4 monolithic pier heads and 1 pier heads with bearing support) were cast in this reporting period.

- All the 3m high piers have been completed in this period (in total 39 elements).

- Cumulatively 229 precast elements have been produced.

Delivery for Precast Concrete Elements (by barge)

(a) Precast Deck Segments:

- Number of additional barges engaged in this period: 2

- Cumulative number of barges: 11

- Number of Deck Segment deliveries in this period: 14 trips

- Cumulative number of Deck Segment deliveries: 67 trips

Segment Types	Segment Delivered in this reporting period	Cumulative No. of Precast Segment Delivered (up to 28th of each month)
A	38	130
B	0	0
C	0	0
D	0	0
E	38	252

(b) Precast column units:

- Number of additional barges engaged in this period: 1

- Cumulative number of barges: 4

- Number of column unit deliveries in this period: 3 trips

- Cumulative number of column unit deliveries: 27 trips

Unit Types	Number of units delivered in this reporting period	Cumulative No. of Precast Column Delivered (up to 28th of month)
3m	0	18
6m	10	56
PH1	0	20
PH2	4	10

(c) Temporary storage of long span segments:

- Number of barges engaged in this period: 1

- Cumulative number of barges: 4

- 4^th barge loaded with long span.

Status of Environmental Licences, Notification and Permits

2.11 The valid environmental licenses and permits were attached in the Monthly EM&A Reports.