Kai Tak Development - Reconstruction and Upgrading of Kai Tak Nullah (Desilting Compounds 1 & 2)

  • Desilting Compound No. 1 and 2 (Artistic Impression)


New Buildings V1.2
Provisional Platinum

Over the past century, Kai Tak Nullah has witnessed continuous development of Hong Kong. It has been serving as a main drainage channel for the Kowloon East area.   While Kai Tak Nullah is being upgraded under the Project “Kai Tak Development – Reconstruction and Upgrading of Kai Tak Nullah” commissioned by the Civil Engineering and Development Department (CEDD) of the Hong Kong Special Administrative Region to meet the current flood protection standard for rainstorm event with a return period of 200 years, it would also be revitalized into an attractive green urban river corridor, namely Kai Tak River, by providing space for leisure and public activities serving the community.
The Desilting Compounds (DCs) 1 and 2 are key components to maintain the drainage capacity of the Kai Tak River by removing sediments accumulated along the drainage channel and box culverts in fully enclosed buildings. Both DCs 1 and 2 are single-storey building occupying a site area of around 16,000 and 2,500 square metres respectively. CEDD is dedicated to embed sustainable and green elements in the design to promote environmentally friendly design and sustainable development.


Desilting Compound 1 Desilting Compound 2

New Buildings V1.2
Provisional Platinum

New Buildings V1.2
Provisional Platinum

Total Score:  

85.6

Total Score: 

86.6

Green Features

With the vision to be a beautiful green environment in the heart of the city, Kai Tak Development (KTD) is planned with an active view in promoting environmentally friendly design and sustainable development concepts. DCs 1 and 2 are designed in alignment with international best practices for green buildings, so as to generate long-term and sustainable benefits for both the Government and community. DCs 1 and 2 embraces the following green features:

Building Features

The design team strove to enhance the visual quality and aesthetics of both DCs 1 and 2 with an aim to creating an impressive building structural form. Bearing this objective in mind, both DCs 1 and 2 are designed to be low-rise premises featuring a modern and streamline design that creates a harmony with surroundings. Sloping green roofs are proposed for both DCs 1 and 2 with a pleasant outlook, minimize the massiveness of the structure and camouflage the building with the greenery. Recycled wood composite panels are adopted at DC 1 to allow the building to naturally blend in with the trees and planters on site to improve the streetscape quality. Façade with granite tile pattern at DC 2 helps to strengthen the experience of public realm.

Use of Environmentally Friendly Construction Materials

Careful material selection has direct implications on the use of natural resources and environmental consequences. For example, timber formworks from sustainably managed timberland are used to help conserve virgin forests. Durable and reusable metal hoarding system is used for temporary works to reduce construction wastes. Hardscape is paved with pervious paving blocks allowing infiltration of rainwater into the ground and hence reducing heat island effect. Environmentally friendly refrigerant R410A is employed for the air conditioning units instead of ozone depleting agent.

Quality Indoor Environment

In order to improve building hygiene, floor drains with U-trap and vent pipes are provided to reduce the potential for transmission of odour. Exhaust fans with deodorization system are provided to improve indoor ventilation.

Greenery

In addition to the extensive greeneries along the building perimeters of DCs 1 and 2 that achieved over 55% of green coverage, the structures are intentionally designed to be set back from their site boundaries. Site fence with green wall climbing plants is adopted to soften the hard edges and reduce heat build-up of street environment. Green roofs are also adopted for both DCs 1 and 2 to reduce solar heat gain into the indoor space. Native species of soft landscape such as Bischofia Javanica (tree) and Gardenia Jasminoides (shrub) are planted to enhance the biodiversity of the site.

Environmental Management

It is of utmost importance to minimise impact on the environment during construction. Hence, the contractor formulated an environmental management plan devising appropriate mitigation measures and environmental monitoring works on air, noise and water pollution so as to comply with statutory requirements and minimise nuisance to the environment arising from the construction activities.

Energy Efficient Systems

Renewable energy is adopted to maximise the use of green energy. For example, lamp poles equipped with photovoltaic (PV) panel and wind turbine are used at DC1 whereas PV panels are installed on the roof of DC 2. For indoor lighting of both DCs, energy saving T5 fluorescent tubes and LED are adopted to reduce the electricity consumption. With the adoption of the above energy saving measures, a reduction of over 20% of annual electricity consumption is achieved for each of the DCs 1 and 2. To facilitate energy audit in operational stage, separated energy meters are installed to measure the electricity consumption of each type of equipment such as mechanical ventilation system, lighting, small power system, pumping system and deodorization system.

Total Water Management

To minimise fresh water consumption, low-flow taps and dual flush toilets are adopted in the DCs. Flow regulator is used to regulate the water flow and optimize the water consumption. A saving of up to 30% annual water consumption is achieved at both DCs by using the above water saving sanitary fittings.

Green Features

With the vision to be a beautiful green environment in the heart of the city, Kai Tak Development (KTD) is planned with an active view in promoting environmentally friendly design and sustainable development concepts. DCs 1 and 2 are designed in alignment with international best practices for green buildings, so as to generate long-term and sustainable benefits for both the Government and community. DCs 1 and 2 embraces the following green features:

Building Features

The design team strove to enhance the visual quality and aesthetics of both DCs 1 and 2 with an aim to creating an impressive building structural form. Bearing this objective in mind, both DCs 1 and 2 are designed to be low-rise premises featuring a modern and streamline design that creates a harmony with surroundings. Sloping green roofs are proposed for both DCs 1 and 2 with a pleasant outlook, minimize the massiveness of the structure and camouflage the building with the greenery. Recycled wood composite panels are adopted at DC 1 to allow the building to naturally blend in with the trees and planters on site to improve the streetscape quality. Façade with granite tile pattern at DC 2 helps to strengthen the experience of public realm.

Use of Environmentally Friendly Construction Materials

Careful material selection has direct implications on the use of natural resources and environmental consequences. For example, timber formworks from sustainably managed timberland are used to help conserve virgin forests. Durable and reusable metal hoarding system is used for temporary works to reduce construction wastes. Hardscape is paved with pervious paving blocks allowing infiltration of rainwater into the ground and hence reducing heat island effect. Environmentally friendly refrigerant R410A is employed for the air conditioning units instead of ozone depleting agent.

Quality Indoor Environment

In order to improve building hygiene, floor drains with U-trap and vent pipes are provided to reduce the potential for transmission of odour. Exhaust fans with deodorization system are provided to improve indoor ventilation.

Greenery

In addition to the extensive greeneries along the building perimeters of DCs 1 and 2 that achieved over 55% of green coverage, the structures are intentionally designed to be set back from their site boundaries. Site fence with green wall climbing plants is adopted to soften the hard edges and reduce heat build-up of street environment. Green roofs are also adopted for both DCs 1 and 2 to reduce solar heat gain into the indoor space. Native species of soft landscape such as Bischofia Javanica (tree) and Gardenia Jasminoides (shrub) are planted to enhance the biodiversity of the site.

Environmental Management

It is of utmost importance to minimise impact on the environment during construction. Hence, the contractor formulated an environmental management plan devising appropriate mitigation measures and environmental monitoring works on air, noise and water pollution so as to comply with statutory requirements and minimise nuisance to the environment arising from the construction activities.

Energy Efficient Systems

Renewable energy is adopted to maximise the use of green energy. For example, lamp poles equipped with photovoltaic (PV) panel and wind turbine are used at DC1 whereas PV panels are installed on the roof of DC 2. For indoor lighting of both DCs, energy saving T5 fluorescent tubes and LED are adopted to reduce the electricity consumption. With the adoption of the above energy saving measures, a reduction of over 20% of annual electricity consumption is achieved for each of the DCs 1 and 2. To facilitate energy audit in operational stage, separated energy meters are installed to measure the electricity consumption of each type of equipment such as mechanical ventilation system, lighting, small power system, pumping system and deodorization system.

Total Water Management

To minimise fresh water consumption, low-flow taps and dual flush toilets are adopted in the DCs. Flow regulator is used to regulate the water flow and optimize the water consumption. A saving of up to 30% annual water consumption is achieved at both DCs by using the above water saving sanitary fittings.


Project Details

Completion Year 2017
Number of Blocks 1 block of single-storey building for each Desilting Compound
Type Government, Institutional and Community

Project Team

Project Developer / Owner Civil Engineering and Development Department, HKSAR Government
Project Manager Civil Engineering and Development Department, HKSAR Government
Architect Cosmos Strategics Limited
Landscape Architect Urbis Limited
M&E Engineer HAR Consultants Limited (HCL)
C&S Engineer AECOM Asia Company Limited
Quantity Surveyor AECOM Asia Company Limited
Sustainable Design Consultant AECOM Asia Company Limited
Environmental Consultant AECOM Asia Company Limited
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