HULHULE-MALE’ BRIDGE PROJECT

EIA for the proposed Hulhule-Male’ Bridge Project
Air-borne dust from material mixing
The concrete mixing stations is set up in three construction sites for the project. Among these,
the surrounding precast yard in Hulhumale’ and the construction site in Hulhule’ had no
residential area, hence mixing station will have no effect. In contrast, the mixing station in the
construction site in Male’ is in close proximity to residential buildings; hence the impact on
these residences will be high unless mitigation measures are taken. Thus, all mixing stations will
adopt concentrated mixing mode and will operate in a fully enclosed space, to minimise the
impact of air-borne dust in mixing process and to control the air-borne dust pollution from
mixing materials.
In conclusion, the air-borne dust pollution during the construction period of the project is mainly
from the road construction dust, the pipeline construction dust, construction air-borne dust in
storage yards and from mixing materials. Strict pollution control plans and precautionary
measures in accordance with the relevant laws and regulations will need to be executed to
effectively control and alleviate air-borne dust pollution.
6.6.1.2 Mitigation measures
Specific measures about prevention and control of dust pollution are as follows:
• Fixed hard enclosure walls not lower than 2 m high will be set up around the construction
area of the proposed project to prevent the impact of air-borne dust in the construction
site; the contractor will assure that trained staff will be responsible for the maintenance
and repair of facilities and for regular inspections.
• Optimize the layout plan of construction site in Male: the concrete mixing area where the
air-borne dust is produced will be arranged on the eastern side, away from residential
area.
• When the construction machineries are at work in the construction process of roadbed,
pipelines, etc., the surface should be regularly watered to prevent air-borne dust
pollution.
• Facilities to wash vehicles, matched drainage facilities and mud sedimentation facilities
will be set up at the construction site. The carrier vehicles will be washed, covered and
cleaned thoroughly daily. This will prevent the construction materials, rubble and muck
from scattering.
• The road used to transport materials and the road in and out of the storage yard will be
watered timely. The contractor will provide watering carts for watering twice a day and
watering number should be appropriately increased in humid weather or strongly windy
weather to prevent air-borne dust on the pavements.
Prepared by: CDE Consulting & China Shipping Environment Technology
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