11                                        Cultural Heritage

11.1                                  Introduction

This section provides an evaluation of the potential cultural heritage impacts arising from the construction and operation of the Project, including the activities at the Development Site, Sha Lo Tung Road Improvement and Ecological Reserves.  Appropriate mitigation measures have been recommended, where necessary, in order to mitigate any adverse impacts.

11.2                                  Relevant Legislation and Guidelines

The following legislations and guidelines are applicable to the assessment of impacts on sites of cultural heritage in Hong Kong:

·            Environmental Impact Assessment Ordinance (EIAO) (Cap. 499. S16), Technical Memorandum on the EIA Process, Annex 10 and 19 (EIAO TM) and Guidance Notes on Assessment of Impact on Sites of Cultural Heritage in EIA Studies;

·            Antiquities and Monuments (AM) Ordinance (Cap. 53);

·            Requirements and Guidelines for Cultural Heritage Impact Assessment (CHIA);

·            Hong Kong Planning Standards and Guidelines (HKPSG); and

·            Land (Miscellaneous Provisions) Ordinance.

11.2.1                            EIAO & EIAO TM

According to the EIAO, Schedule 1 Interpretation, “Sites of Cultural Heritage” are defined as:

“an antiquity or monument, whether being a place, building, site or structure or a relic, as defined in the AM Ordinance and any place, building, site, or structure or a relic identified by the Antiquities and Monuments Office to be of archaeological, historical or palaeontological significance”.

The technical scope for evaluating and assessing cultural heritage impacts is defined in Annexes 10, 18 and 19 of the EIAO TM.  The approach recommended by the guidelines can be summarized as follows.

·            The general presumption in favour of the protection and conservation of all sites of cultural heritage because they provide an essential, finite and irreplaceable link between the past and the future and are points of reference and identity for culture and tradition; and

·            Adverse impacts on sites of cultural heritage shall be kept to an absolute minimum.

11.2.2                            Antiquities and Monuments Ordinance

The AM Ordinance (Cap. 53) provides statutory protection against the threat of development on Declared Monuments, historic buildings and archaeological sites to enable their preservation for posterity.  The AM Ordinance also establishes the statutory procedures to be followed in making such a declaration.

In practice, the Antiquities and Monuments Office (AMO) also identifies the Deemed Monuments and then seeks to reach agreements with the owners of the monuments to provide for specific measures that will ensure preservation.  Deemed Monuments have the potential to be upgraded to statutory Declared Monuments under the AM Ordinance.

A large range of potential sites of cultural heritage, among which are historic buildings and structures and archaeological sites, have been identified and recorded by AMO in addition to those for which a declaration has been made under the AM Ordinance.

Part of the recorded historic buildings and structures are graded by the Antiquities Advisory Board (AAB) and the AMO according to the grading system summarised in Table 11.1.

Table 11.1      Definition of Grading of Historic Buildings

Grading

Description

1

Buildings of outstanding merit, which every effort should be made to preserve if possible

2

Buildings of special merit; effort should be made to selectively preserve

3

Buildings of some merit, preservation in some form would be desirable and alternative means could be considered if preservation is not practicable. 

Between 1996 and 2000, AMO conducted a territory-wide historic buildings survey (mainly built before 1950) in Hong Kong and recorded 8,800 buildings.  A more in-depth survey of 1,444 buildings (selected from the 8,800 buildings and included 543 already graded buildings) with higher heritage value was conducted between 2002 and 2004 and an Expert Panel was formed in March 2005 to undertake an in-depth assessment of the heritage value of these buildings.  The assessment comprised two stages and was completed in February 2009.  Gradings of these buildings were proposed and put forward by AMO for consideration by AAB and the results were released to public on 19 March 2009 for a four month public comments period in July 2009.  The AAB is now in the process of finalizing the proposed gradings.  The final gradings of these historic buildings up to 23 November 2011 are considered and reflected in this CHIA accordingly.  The AAB endorsed at its meeting on 26 November 2008 the establishment of a formal relationship between the statutory monument declaration system and the administrative grading system for historic buildings of AAB.

Under this endorsement arrangement, the Grade 1 buildings will be regarded as providing a pool of highly valuable heritage buildings for consideration by the Antiquities Authority as to whether some of these may have reached the “high threshold” of monuments to be put under statutory protection.  In case where the buildings are under demolition threat, the Antiquities Authority will provide immediate protection to the buildings through proposed monument declaration on case-by-case basis.

For Grade 2 and Grade 3 buildings, appropriate actions to preserve them will be undertaken so that the buildings should be preserved in such a way which is commensurate with the merits of the buildings concerned, and priority would be given to those with higher heritage value.

Over the years, surveys have been undertaken to identify archaeological sites in Hong Kong.  The AMO has established boundaries for the identified sites and maintains a list of Sites with Archaeological Interest which is available for review in the Hong Kong Heritage Discovery Centre Reference Library.  A set of administrative procedures for the protection of these sites has been established by the Office.  However, since many areas remain not surveyed yet, procedures and mechanisms are required to be followed to identify unknown archaeological resources that may be discovered during project assessment or construction and any archaeological survey works involved should be conducted by qualified archaeologist who should obtain a Licence to Excavate and Search for Antiquities to be granted by the Antiquities Authority under the AM Ordinance.

11.2.3                            Hong Kong Planning Standards and Guidelines

Chapter 10, Conservation, of the HKPSG provides general guidelines and measures for the conservation of historical buildings, archaeological sites and other antiquities.

11.2.4                            Requirements and Guidelines for Cultural Heritage Impact Assessment

The requirements and guidelines for the CHIA are stated in Appendices J and J-1 of the EIA Study Brief No. ESB-206/2009, which include a baseline study, field evaluation and impact assessment.

11.2.5                            Land (Miscellaneous Provisions) Ordinance (Cap. 28)

Under this Ordinance, it is required that a permit be obtained for any excavation within government land prior to commencement of any excavation work commencing. 

11.3                                  Assessment Methodology

In accordance with Clauses 1 and 2 of Appendix J of the EIA Study Brief No. ESB-206/2009, the CHIA comprises two parts, the Built Heritage Impact Assessment (BHIA) and the Archaeological Impact Assessment (AIA).  The methodology for the BHIA and AIA follows the Requirements and Guidelines for Cultural Heritage Impact Assessment (CHIA) as stated in Appendixes J and J-1 of the EIA Study Brief No. ESB – 206/2009 and was submitted and agreed with the Director and AMO and presented below.

11.3.1                            Assessment Area

The scope of this EIA covers the Project and associated works, comprising three key components: (a) Development Site and (b) Sha Lo Tung Road Improvement and (c) Ecological Reserve as shown in Appendix A of the EIA Study Brief No. ESB– 206/2009.

The assessment area for BHIA includes areas within a distance of 50m from the site boundary of the Project, supporting facilities and road works as shown in Figure 11.1. 

The assessment area for AIA includes areas within a distance of 50m from the site boundary of the Development Site and the Sha Lo Tung Road Improvement of the Project as shown in Figure 11.2. 

11.3.2                            Methodology

Task 1 - Desktop Review

A desk-based review was undertaken to determine the presence of historical occupation, to compile a comprehensive archaeological baseline conditions, and to establish the potential for cultural heritage resources within the Assessment Areas. 

The information was obtained from a comprehensive list of sources including the AMO, Planning Department, Lands Department, tertiary institutions libraries and Internet.  Historical, geological and archaeological information of the Assessment Areas was reviewed including literatures, graphical materials, aerial photos and historical maps.  A full bibliography is presented in Annex H1.

Task 2a - Built Heritage Survey

The built heritage survey followed the requirements of the EIAO TM and Clause 1.4, Appendix J-1 of the EIA Study Brief No. ESB–206/2009. 

Photographic records of each historic building or structure were taken and the built heritage information obtained during the survey.  The field survey includes the identification of:

 (a)     All pre-1950 buildings and structures;

 (b)     Selected Post-1950 buildings and structures of high architectural and historical significance; and

 (c)     Cultural landscapes include places associated with historic event, activity, or person or exhibiting other cultural or aesthetic values, such as sacred religious sites, battlefields, a setting for buildings or structures of architectural importance, historic field patterns, clan graves, old tracks, fung shui woodlands and ponds, and etc.

Although some of the village houses have been collapsed (without a roof) and ruined within the BHIA Assessment Area, these ruined building structures were also included in the detailed field survey as far as possible.   Photographic records were taken to show the general conditions of the ruined building.

A site coding system was used.  A unique alphanumeric site code was allocated to each built heritage feature identified.  The two letter prefix denotes the category of the built heritage features.  For instance, GB1 and GR01 refer to the first graded historic building and grave identified respectively.  Table 11.2 provides a list of these codes.

Table 11.2      Site Code used for Identification of the Built Heritage Features within the BHIA Assessment Area

Feature’s Category

Site Code

Graded/Proposed Graded Historic Buildings

GB

Graves

GR

Cultural/Historical Landscape Features

LF

Task 2b – Archaeological Survey

According to Clause 2, Appendix J of the EIA Study Brief No. ESB– 206/2009, in case the existing information is inadequate or where the AIA Assessment Area has not been adequately studied before, archaeological survey should be conducted by the archaeologists, who shall obtain licence from the Antiquities Authority prior to the commencement of the fieldwork. 

Based on the desktop findings and the findings of previous archaeological works undertaken by the Study Team in the Sha Lo Tung area, an archaeological potential evaluation of the AIA Assessment Area was conducted which assists in defining the need for archaeological survey (or field evaluation).   It was considered that the existing information is adequate for the purpose of the AIA for the Project and additional archaeological survey is not required.   

Task 3 - Impact Assessment

Based on the findings from Tasks 1 and 2, a BHIA and an AIA were conducted to evaluate whether the proposed developments and works associated with the Project are acceptable from built heritage preservation and archaeological preservation points of view.  Preservation in totality has been taken as the first priority and the impact assessment followed the requirements of Annexes 10 and 19 of the EIAO TM and Clauses 2.1 and 2.2, Appendix J-1 of the EIA Study Brief No. ESB–206/2009.  In case adverse impact on built heritage or archaeological resources cannot be avoided, appropriate mitigation measures have been recommended.

Task 4 - Reporting

The BHIA and AIA as part of the CHIA of the EIA for the Project are presented in this EIA report which followed the requirements of Clauses 1.5 and 2.3, Appendix J-1 of the EIA Study Brief No. ESB–206/2009.

11.4                                  Baseline Conditions

11.4.1                            Geological and Topographical Review

The landform of the Assessment Areas is mainly characterized by mountain ridges with three villages Fung Yuen Lo Tsuen (鳳園老村), Tin Sum (田心) and Mak Uk (麥屋) at a valley to the west of Sha Lo Tung Road.  The proposed Nature Interpretation Centre, Multi-culture Educational Retreat and Columbarium (the Development Site) will be located on a mountain ridge with the elevation between 180 mPD and 207 mPD.  Two streams are running towards the Sha Lo Tung basin surrounded by the hills.

The bed rock of the Assessment Area consists of coarse ash crystal tuff, block-bearing tuff and tuffie and medium-grained grandiorite.  Completely decomposed deposit of loamy soil, and sandy soil are identified above the weathered bed rock stratum.   

11.4.2                            Historical Review  

It is believed that inhabitants in Sha Lo Tung were the Hakka people migrated from northeast region of Guangdong Province since the middle of the 17th to early 18th centuries ([1]).  However, review of the 1688 edition of the Xin’an Gazetteer (新安縣志) identified no village recorded in Sha Lo Tung.  Until the 1819 edition of Xin’an Gazetteer ([2]), it is found that two villages namely Sha Lo Tung and Ha Hang of Hakka villages were recorded.  Review of 1866 Map of Sun On District, 1897 Map of Xinan of Guangdong Gazetteer (廣東通志) identified six settlements comprising Cheung Uk (張屋), Lei Uk (李屋), Sha Lo Tung(沙螺洞), Sha Lo Tung Lo Wai (沙螺洞老圍), Ha Hang (下坑) and Fung Yuen(鳳園) appeared at Sha Lo Tung and its adjacent areas.  A village, “Sha Lo Tung” of 100 Hakka people was recorded in the Report on the Extension of The Colony of Hong Kong in 1900 ([3]). 

In comparing the above mentioned historical documents and maps, it is noted that the Sha Lo Tung area comprised three settlements, including the Cheung Uk, Lei Uk and Sha Lo Tung Lo Wai dated to the late 19th century as shown in a 1905 map ([4]) (see Figure 11.3) and a 1970s 1:10,000 map.  These settlements were established by both Cheung and Lei clans migrated from the northeast region of Guangdong province in the early to middle Qing Dynasty.

Figure 11.3     Map Showing the Topography adjacent to Sha Lo Tung in 1905

There are limited records regarding the history in Sha Lo Tung.  However, some literatures indicated that the Hakka people settled in Sha Lo Tung were the clans of Cheung () and Lei ().  Members of these two clans migrated from further north in the late 1600s to early 1700s after the Coastal Evacuation (1661 – 1669).

According to the genealogy, the first generation of the Cheung clan in Sha Lo Tung was buried in Chaozhou (潮州) (in northeastern Guangdong) probably in early to mid-fifteenth century.  An eighth generation wife was the first member of the clan buried in Sha Lo Tung.  It therefore suggests that one branch of the eighth generation of the Cheung clan moved to Sha Lo Tung probably in late seventeenth century.  Sha Lo Tung Lo Wai was established by the Cheung clan. 

The Lei clan, according to the genealogy, traces the clan’s origin back to Dingzhou (定州) of Fujian (福建) Province.  They migrated to Guangdong to escape the political disturbances after the fall of Yuan Dynasty in the mid-thirteenth century.  Lei Tsz-ching, a fifteenth generation member of the clan, moved to the Tai Po area in 1689 and settled at Wai Ha in Shuen Wan.  Lei Tsz-ching’s oldest son, Lei Wai-yan married with a girl from the Cheung clan and moved to Sha Lo Tung to become the first Lei clan member settling down in Sha Lo Tung and progressively established the settlement known as Lei Uk.

The Cheungs, after a while, believed that the fung shui in their original settlement in Sha Lo Tung was not good for them.  Therefore, they moved to the western side of the valley (i.e. the present location of Cheung Uk).

As a result, three village settlement areas were established in Sha Lo Tung, namely the Lo Wai, Cheung Uk and Lei Uk (see Figure 11.4). 

The Sha Lo Tung villagers were involved in the Tai Po (大埔) local affairs throughout history.  In the early days, the Sha Lo Tung villagers marketed at Tai Po where the market was owned and monopolized by the Tang () clan of Tai Po Tau (大埔頭).  Non-Tang purchasers were tolled to market.  Seeking to end the Tang’s monopoly, the villages of the area including Sha Lo Tung formed a federation of seven oath-sworn inter-village mutual defense association (known as “Tsat Yeuk (七約)”) to build a new market (i.e. the current Tai Po Market).

In 1899, the Battle of Tai Po between the British colonists and the Punti people (literally ‘local people’ which include the Tangs and two Lei clan members of Sha Lo Tung) also indicated that Sha Lo Tung have involved in local affairs of Tai Po.  With the British colonial development during the first half of twentieth century, villagers of Sha Lo Tung began to find jobs in the city.  The villages had depended on remittances from villagers working in the city and overseas for two generations before the Second World War.

After the War, the life style of agriculture with remittances from villagers working in the city or overseas was re-established.  According to the 1960 Hong Kong Gazetteer of Place Names, there were 445 people in Sha Lo Tung (260 in Cheung Uk and 185 in Lei Uk).  In the late 1960s and 1970s, when rice farming in Sha Lo Tung became unviable, villagers started to leave.  By the mid-1970s, only a few dozen elderly villagers stayed in the village and they depend on remittances from relatives working in the city and overseas.

In the village of Cheung Uk, there were over 60 houses built in irregular linear rows of around six based on the topography and fung shui facing north-east, with the fung shui woods guarded behind the village houses. 

Similarly in the village of Lei Uk, the village house were connected together in three rows, the longest being in the west known as Ma Tseuk Ha (麻竹下) while the other two are in the east row known as Lo Wai.  There were about 40 village houses in the village. 

The Cheung Uk, Lei Uk and Lo Wai in Sha Lo Tung had been abandoned since 1979 after the land of the area had been purchased by the project proponent.  Many of the village houses had been ruined.

 


Figure 11.4     1974 Historical Map showing three village areas in Sha Lo Tung (Source: Hong Kong Government 1974)

Owing to the remoteness of Cheung Uk and Lei Uk, villagers had to commute from their villages to Tai Po Market and other villages through the ancient rock trackway.  The Hok Tau Reservoir-Cheung Uk Boulder Trackway (鶴藪水塘至張屋古石徑), a site of archaeological interest recorded by the AMO, was probably the trackway commonly used by the villagers in the past.  There is an old stone path sign (see details for LF02 in Table 11.4) established in front of Cheung Uk to give direction for trackway users.  Construction years of the ancient trackway and the old stone path signs are unknown.

11.4.3                            Built Heritage Resources Identified within the BHIA Assessment Area  

Literature review and field survey identified no declared monuments and deemed monuments within the BHIA assessment area.  According to the List of Historic Buildings in Building Assessments as of 23 November 2011 ([5]), two Graded Historic Buildings are identified.  While Sha Lo Tung Cheung Uk has been confirmed to remain Grade 2, Sha Lo Tung Lei Uk has been confirmed as Grade 3 as presented in Table 11.3.   Both are located in the Ecological Reserve.  Their general locations are presented in Figure 11.5, specific locations for Sha Lo Tung Cheung Uk and Sha Lo Tung Lei Uk are shown in Figure 11.6 and Figure 11.7 respectively, the 1:1000 maps are shown in Annex H2 and detailed records of the sites are presented in Annexes H3 and H4.

Table 11.3     Graded Historic Buildings Identified within the BHIA Assessment Area

Site Code

Site Name

Current Grading

ProposedGrading

Description

GB1

Sha Lo Tung Cheung Uk

Grade 2 (Confirmed on 18 December 2009)

History of the village is presented in Section 11.4.2 above.  Except the Cheung Ancestral Hall, which is still in use, the whole village is now abandoned.  The built heritage survey recorded 35 sub sites and coded as GB1-1 to GB1-35.  Many of them are ruined.  Details of their records are presented in Annex H3.  

  

GB2

Sha Lo Tung Lei Uk

Grade 3 (Confirmed on 24 June 2010)

History of the village is presented in Section 11.4.2 above.  The whole village is now abandoned.  Only the Lei Uk Ancestral Hall is in good condition.  Other village houses are ruined and many of them are covered by vegetation.  The built heritage survey recorded 3 sub sites and coded as GB2-1 to GB2-3.   Details of their records are presented in Annex H4.     

Apart from the two graded historic buildings listed by AMO, 10 clan graves and 2 landscape features are identified.  No other built heritage is identified in the BHIA Assessment.  The identified graves and landscape features are summarised in Table 11.4.  Their locations are shown in Figure 11.5, the 1:1000 maps are shown in Annex H2 and detailed records of the sites are presented in Annexes H5 and H6.

Table 11.4     Graves and Landscape Features Identified within the BHIA Assessment Area

Site Code

Site Name

Description

Graves

 

GR01

Cheung Clan Grave

A Cheung clan grave renovated in 1998.

GR02

Mrs Cheung Grave

A Cheung clan grave renovated in 1998.

GR03

Unknown name grave

Most of the headstone text is illegible.  According to legible text, the grave was renovated in 1885.

GR04

Unknown name grave

Most of the headstone text is illegible.  According to legible text, the grave was renovated in 1897.

GR05

Cheung clan branch grave

According to headstone information the grave was renovated in 1909 and 1994.  It is one of the branches (or fong) grave.

GR06

Cheung clan grave

According to headstone information, the deceased is from Cheung clan of Sha Lo Tung and renovated in 1980.

GR07

Ma grave

According to headstone inscription, the grave was renovated in 1817 and 1987. 

GR08

Mak grave

The deceased are a couple of the Mak clan and they are from the 16th and 17th generations.  The grave was constructed in 1920 and renovated in 2002.

GR09

Cheung clan grave

The deceased is from the Sha Lo Tung Cheung clan.  The grave was constructed in 1945 and renovated in 1999.

GR10

Cheung grave

According to the headstone inscription, the deceased is from Cheung clan of Sha Lo Tung.  Based on the construction material, the grave may be constructed before 1950.

Landscape Features

LF01

Earth Shrine

There is an earth shrine located at the southern section of Sha Lo Tung Road.  It was probably established by the local people in the region when they settled there in the early 18th century.  According to the finishing material used, it had been renovated in the late 20th century.  

LF02

Old Stone Path Sign

This old stone path sign is located at a junction of the Hok Tau Reservoir – Cheung Uk Boulder Trackway (listed as Site of Archaeological Interest).  The trackway was constructed with boulders.  The construction years of the trackway and the path sign are unknown.  Newer signs probably built in the early 20th century can also be found adjacent to this old stone path sign.

11.4.4                            Sites of Archaeological Interest within the AIA Assessment Area

No known sites of archaeological interest recorded by AMO are identified within the AIA assessment area, which only includes areas of the Development Site and Sha Lo Tung Road Improvement (excluding Ecological Reserve area) (see Section 11.3.1 and Figure 11.2).  A section of the Hok Tau Reservoir – Cheung Uk Boulder Trackway, which is a site of archaeological interest recorded by the AMO, is identified to be situated at the Ecological Reserve area.

11.4.5                            Archaeological Review

Prior to 2006, there have been limited archaeological investigations conducted at Sha Lo Tung and its adjacent areas.  The latest recorded archaeological structure is a lime kiln constructed with stone blocks dated to the middle of the 19th to early 20th centuries by the coast of Tolo Harbour some 150m to the southeast of Sha Lo Tung Road at the current Ting Kok Road known as Ha Hang (see Figure 11.8) ([6]).  Another recorded archaeological interest area is located at Fung Yuen located 250m to the west of Sha Lo Tung Road where two pieces of late Bronze Age to early Iron Age (Warring States Period of China) pottery shards with net and union jack pattern had been collected on a cultivation field between the Mak Uk and Fung Yuen Lo Tsuen ([7]) that reflects the archaeological potential of Fung Yuen.  However, none of these two areas are currently recorded as sites of archaeological interest by the AMO.

In 2006, ERM-Hong Kong, Limited was commissioned to conduct an AIA covering the same site boundary of the proposed Development Site and the Sha Lo Tung Road Improvement where field scanning, 35 auger holes and 13 test pits were conducted (see Figure 11.9).  A full report of the AIA result is presented in Annex H7 and the findings are summarized below.

The archaeological survey unearthed nine pieces of Qing Dynasty blue-and-white porcelain bowl shards from fieldwalking and excavation of Test Pit TP7.  The exterior surface of the shards are either decorated with Chinese character “chuan” (), floral or stamped patterns (see Figure 11.10 or some examples).  The findings provide evidence of human activities at Sha Lo Tung as early as the early to middle Qing Dynasty.  However, these finds are local common village ware shards considered to have negligible value. 

Figure 11.10  Blue-and-white Bowl Shards Identified

Nevertheless, a Neolithic Age stone adze not associated with datable artefacts and a Tang to Song Dynasties brown crackled glazed pot ear shard (see Figures 11.11 and 11.12) were unearthed from TP10 and TP11 located adjacent to the southern section of the Sha Lo Tung Road.  The discovery confirmed that the area adjacent to a hill slope where TP10 and TP11 located has archaeological potential.  However, due to the low quantity and absence of cultural layer identified from TP10 and TP11, the archaeological potential is considered to be low. 

Figure 11.11  Stone Adze unearthed from Layer 3 of TP10

Figure 11.12  Brown Crackled Glazed Pot Ear Shard from L2 of TP11

11.4.6                            Archaeological Potential Evaluation

In comparing the boundaries of the currently proposed Development Site and the Sha Lo Tung Road Improvement of the Project and the Study Area of the AIA conducted in 2006, it is noted that there is no new developments proposed outside the Study Area of the AIA conducted in 2006.   Therefore, no additional potential impact is identified. 

Given that the site boundary of the currently proposed Development Site and the Sha Lo Tung Road Improvement of the Project and the Study Area of the AIA conducted in 2006 are the same, the findings for the AIA conducted in 2006 are considered valid for the archaeological potential evaluation.

Archaeological Potential Evaluation of the Development Site

Although some blue-and-white porcelain bowl shards were identified within the Development Site boundary, which provides evidence of human activities at Sha Lo Tung as early as early to middle Qing Dynasty, these finds are local common village ware shards considered to have negligible value.  Also, given the fact that the villages (Cheung Uk, Lei Uk and Lo Wai) in Sha Lo Tung could date back to the middle of the 17th to early 18th century, it is not surprised to identify similar period shards at the adjacent areas.  However, as the proposed Development Site is generally located on a ridge area with lack of superficial deposits to contain archaeological remains and the field survey conducted in 2006 indicated that there is no evidence of stable cultural layers identified within the Development Site, the proposed Development Site is therefore considered to have negligible archaeological potential.

Archaeological Potential Evaluation of Sha Lo Tung Road Improvement

The existing Sha Lo Tung Road was mostly constructed by cutting of existing steep hill slope.  Therefore, most of the sections of the Sha Lo Tung Road are considered topographically unfavourable for human settlements or to contain any archaeological potential.  This is further confirmed through the archaeological survey conducted in 2006. 

Nevertheless, the southern part of the Sha Lo Tung Road is relatively flat and topographically different from the northern section.  Two test pits and four auger holes were conducted in the 2006 archaeological survey where one Neolithic stone adze and a piece of Tang to Song Dynasty brown crackled glazed pot ear shard were identified.  However, no evidence of cultural layer was identified.  It is possible that the cultural layers had been disturbed by previous development such as the construction of Sha Lo Tung Road, underground utilities and the building structure of the Society of Horticulture of Hong Kong at the area. 

With the small quantity (2 pieces) of artefacts identified and the lack of cultural layer, it is concluded that the concerned area is of low archaeological potential.  

11.5                                  Impact Assessment

11.5.1                            Construction Phase

No declared monument is identified in the entire BHIA assessment area.  Impact assessments on other built heritage resources within the BHIA assessment area are identified below.

 

Ecological Reserve

One Grade 2 Historic Building - Sha Lo Tung Cheung Uk (GB1), one Grade 3 Historic Building - Sha Lo Tung Lei Uk (GB2), one landscape feature (LF02), five clan graves (GR01, GR02, GR05, GR07 and GR08) and a site of archaeological interest are identified inside the Ecological Reserve (which is not a works area).  

Based on a recent condition survey report on Sha Lo Tung Lei Uk ([8]), it is recommended that fencing along the full length of the village site boundary adjacent to the footpath, as well as a temporary footbridge across the stream between Sha Lo Tung Valley and Lei Uk, should be provided for the purpose of public safety and temporary maintenance access respectively.

The installation of a fence with an entrance gate to allow villagers to access the ancestral hall in the village in future along Lei Uk village houses has potential indirect impact to cause landscape change to the associated cultural landscape features of the Lei Uk village houses.  Nevertheless, the impact tends to be acceptable because only minimal soil excavation will be conducted for the posts and fences and hand tools will be used for the installation.  Provided that the fence will be located as far away from the Lei Uk houses as possible and due care will be taken to prevent any disturbance to the village houses and structures of Lei Uk, the indirect impact is considered acceptable.

Regarding the construction of a temporary footbridge, it will be made mainly of wooden materials and span over the streambed.  Construction of the bridge footings will involve minor excavation (dimensions of 500mm (height) x 500mm (length)) by using hand tools.  The temporary footbridge will be removed manually after the erection of fencing around Lei Uk (see Section 3.3.3 for details).  Since there is considerable distance between the footbridge and Lei Uk Village (approximately 25m), and there is temporary change of access to the heritage site during the work period, only indirect impact is anticipated.  However, such impact is considered acceptable provided that due care will be taken to prevent any disturbance to the village houses and structures of Lei Uk.

The landscape and visual impact assessment and the proposed mitigation measures for Sha Lo Tung Cheung Uk and Lei Uk are addressed as LR9 Abandoned Villages, R4 Visitors to Cheung Uk and R5 Visitors to Lei Uk in Section 10 Landscape and Visual Impact Assessment of this EIA Report.

An organic paddy farm demonstration site of about 0.2 ha in size is proposed at the abandoned agricultural land behind Cheung Uk.  The organic paddy farm demonstration site will only involve typical agricultural activities using hand tools.  Ploughing will only restrict to no more than 30cm in depth of soil.  No additional footpath or ancillary facility will be built that may involve ground excavation for the farm.  Therefore, there will be no physical impact on the built heritage due to the small-scale activities during construction and operation phases of the farm, and thus no cultural heritage impact is expected.

Concerning the site of archaeological interest, the Hok Tau Reservoir – Cheung Uk Boulder Trackway, as well as the landscape feature (LF02) and five clan graves (GR01, GR02, GR05, GR07 and GR08), they are unlikely to be impacted by the proposed development because these structures are located inside the Ecological Reserve where no major development will take place.

As such, no significant adverse impact on these resources is anticipated.

Development Site

Five graves (GR03, GR04, GR06, GR09 and GR10) are identified which are potentially impacted by the construction of the Development Site as they are located inside the Development Site works area.  Although GR03, GR04 and GR10 were constructed in the late 19th or early 20th century, GR03, GR04 GR10 are overgrown with vegetation and in poor condition.  For GR06 and GR09, although they were constructed pre-1950, they have been renovated with modern materials.  Therefore the architectural values of these graves are considered low and such architectural style graves are commonly found in the New Territories.  Furthermore, the project proponent has consulted the villagers and come up with a mutual informal agreement that any graves falling within the Development Site will be relocated.  Thus, acceptable impact is anticipated so long as the mitigation measure of relocation is implemented.  Apart from the graves no other built heritage are identified.  Vibration impact arising from the works in the Development Site is expected to be limited because the site is made of soft ground.  No significant impact on built heritage is anticipated.

Archaeological survey result confirmed the development site has negligible archaeological potential.  No archaeological impact is anticipated.

Sha Lo Tung Road Improvement

An earth shrine (LF01) is located approximately 3m away from the southern section of the proposed Sha Lo Tung Road Improvement.  Although it falls within the works area boundary, the shrine will be retained on site.  Therefore, direct impact is not anticipated.  No site formation works including bulk excavation/sheet piling works/shoring works is required for new road alignment construction at the area.  Potential indirect impact is considered minimal.   Nevertheless, laying of drainage pipes may require sheet piling for temporary earth support if there is space constraints for open excavation.  Thus, potential construction vibration impact to the shrine arising from the potential sheet piling works would be a concern.  Mitigation measures have been recommended if sheet piling works is required.

Apart from the earth shrine, no other built heritage resources is identified, and hence no impact is anticipated. 

Archaeological survey result confirmed negligible archaeological potential at most of the sections of the Sha Lo Tung Road Improvement.  No impact to most of the Sha Lo Tung Road Improvement sections is anticipated.  However, at the southern section of the alignment where small quantity (2 pieces) of artefacts had been discovered, cultural layer had not been identified to conclude significant archaeological deposits had been identified.  Moreover, signs of disturbance of the area had been noted probably due to the construction of the existing Sha Lo Tung Road, underground utilities and the building structures on site.  Thus, it is believed that any surviving archaeological deposits in the concerned area have probably been heavily disturbed.  Therefore, this area is considered to have low archaeological potential.  The construction of the Sha Lo Tung Road Improvement will not cause unacceptable archaeological impact.

11.5.2                            Operational Phase

The fencing with an entrance gate to maintain future access to the Lei Ancestral Hall along the full length of the site boundary adjacent to the footpath near Lei Uk Village has beneficial impact on the preservation of the heritage site during the operational phase because it prevents unauthorized access and trespassing to the historic buildings.  However, potential indirect impact arisen from the said fence installation in terms of landscape change to the associated cultural landscape features of the Lei Uk village houses exists.  The landscape and visual impact assessments associated with the fencing work and the proposed mitigation measures, if necessary, are addressed as LR9 Abandoned Villages, R4 Visitors to Cheung Uk and R5 Visitors to Lei Uk in Section 10 Landscape and Visual Impacts of this EIA Report.

The operation of the Development Site (e.g. Multi-Cultural Education Retreat, Columbarium, etc.) would induce permanent change in setting and general environs at the entrance of Sha Lo Tung.  However, since the Development Site is far away from the built heritage sites located in the Ecological Reserve (i.e. over 230m from Cheung Uk and over 270 from Lei Uk) and with implementation of the proposed landscape and visual mitigation measures presented in Table 10.2, no impact is expected to be anticipated. 

No other impact is anticipated during the operational phase. 

11.6                                  Mitigation Measures

No built heritage impact identified in the proposed Ecological Reserve.  No mitigation measure is required. 

Relocation of five graves in the Development Site is required for the development.  The project proponent and the grave owners have come up to an agreement that the graves will be relocated.  No mitigation measure is required.

If laying of drainage pipes is considered necessary adjacent to LF01, it is recommended that the construction method be reviewed to avoid and minimise potential construction vibration impact to LF01.  If potential construction vibration is considered unavoidable, a vibration monitoring should be conducted by the construction contractor during the construction work adjacent to LF01.  The monitoring should include:

·       A pre-condition survey for LF01 conducted by a structural engineer to record the state of the feature (including all cracks) before construction work commences;

·       Trial test of vibration generated from ground borne vibration related works;

·       Evaluation and review of the construction method to avoid and minimise the potential impact; and

·       Recommendation of vibration monitoring and protection measures.  This would include the establishment of a vibration limit, monitoring frequency and protective measures to be agreed with the Engineer and AMO. 

In addition, during the construction stage of the Sha Lo Tung Road Improvement adjacent to LF01, the construction contractor should ensure visitors’ safe access to the shrine.  A temporary fence with access entrance should also be erected to prevent any direct impact to LF01 during the construction work. 

An archaeological monitoring at the southern section of the proposed Sha Lo Tung Road Improvement alignment (see Figure 11.13) is recommended during construction stage to preserve potentially impacted archaeological resources by record.   The need and the scope of the archaeological monitoring should be reviewed during the detailed design of construction works at the concerned area and agreement to be made with AMO.

11.7                                  Environmental Monitoring and Audit Requirements

11.7.1                            Construction Phase

During the construction stage of the southern section of the Sha Lo Tung Road Improvement, an archaeological monitoring covering the area as shown in Figure 11.13 is recommended to preserve potentially impacted archaeological resources by record.  The monitoring should be conducted by a professional archaeologist, who should obtain a Licence to Excavate and Search for Antiquities under the Antiquities and Monuments Ordinance and be engaged by the project proponent or environmental team.  The need and scope of archaeological monitoring is subject to the detailed design of construction works.

If laying of drainage pipes is required adjacent to LF01 and sheet piling works cannot be avoided, a construction vibration monitoring as described in Section 11.6 should be conducted. 

11.7.2                            Operational Phase

Monitoring is not required during operational phase.

11.8                                  Conclusions

Desktop review supplemented by field survey identified that there is no declared monument within the Built Heritage Impact Assessment (BHIA) and the Archaeological Impact Assessment (AIA) assessment areas.  Hok Tau Reservoir – Cheung Uk Boulder Trackway, a site of archaeological interest recorded by the Antiquities and Monuments Office (AMO), is partly located within the Ecological Reserve.  The trackway will be retained in the Ecological Reserve and no adverse impact is anticipated.

Two graded historic buildings (Cheung Uk being confirmed as grade 2 historic building whereas Lei Uk being confirmed as grade 3 historic building), one landscape feature and five clan graves are identified within the Ecological Reserve.  They will be retained in the Ecological Reserve.  No adverse impact is anticipated.    

Five graves are identified within the Development Site, the project proponent and the grave owners have come up to an agreement that all the graves in the Development Site will be relocated.  No other cultural heritage resources are identified within the Development Site.

The archaeological impact assessment identified two pieces of artefacts dated back to Neolithic Age and Tang to Song Dynasties respectively at the southern portion of the proposed Sha Lo Tung Road Improvement.  Archaeological monitoring has been recommended during construction stage of the Sha Lo Tung Road Improvement to preserve potentially impacted archaeological resources by record.  The need and scope of the archaeological monitoring is subject to the detailed design of the construction works.

A landscape feature, an earth shrine (LF01), is identified at the southern section of the Sha Lo Tung Road Improvement.  The construction work adjacent to the shrine may affect the access to the shrine.  It is recommended that safe access of visitors to the shrine should be ensured.  A temporary fence with access entrance should be erected to prevent any direct impact to LF01 during the construction work.  Potential vibration impact will also be a concern if sheet piling works are required for laying of drainage pipes adjacent to the earth shrine.  Recommendations have been made to avoid and minimise the potential vibration impact through construction method review.  If it is considered not feasible, a vibration monitoring has been recommended.  No other built heritage resources are identified within the Sha Lo Tung Road Improvement.

 



([1])    蕭國健 1986 〈復界後的香港〉,《清初遷海前後香港社會的變遷》,台北,台灣商務印書館。

([2])    舒懋官編 1819《新安縣志‧卷二輿地略》,新安縣衙。

([3])    Lockhart, S. 1900 Report on the Extension of the Colony of Hong Kong, London, Colonial Office. (unpublished)

([4])  War Department 1905 Taipo (Scale: 1:31,680), map series number GSGS 1393, Ordnance Survey, Southampton.

([5])     List of Historic Buildings in Buildings Assessments as of 23 November 2011, information on line; available from http://www.amo.gov.hk/form/AAB-SM-chi.pdf

([6])    Peacock and Nixion 1986  Report of the Hong Kong Archaeological Survey, Vol . III, Part 1, Hong Kong, Antiquities and Monuments Office. (unpublished)

([7])     香港中文大學、珠海市博物館 1998 《全港文物普查第七區》,一至三冊,香港,古物古蹟辦事處。(未刊)

([8])    Ove Arup & Partners Hong Kong Ltd., July 2009, Sha Lo Tung Study – Condition Survey of Lei Uk Village