Construction: mobilization, access, staging, and perimeter controls

In tandem with installation of ESC measures, setting up access and staging areas is one of the first steps in any construction project. Perimeter controls such as construction fencing are often combined with silt fencing. Safety fencing may be needed to restrict public access to the site, especially if the site sees lots of pedestrian traffic. Together, construction fencing and structural ESC measures should demarcate:

• the limits of construction
• heavy equipment routes
• equipment and material storage areas
• LID practice footprints
• natural heritage features
• access areas

Construction steps

1. Install perimeter fencing/silt fence in alignment with design drawings and ESC plan.
2. Demarcate staging and access points with fencing or surface markings in alignment with design drawings.

Key inspection points

• Ensure perimeter fencing and access/staging areas are in alignment with design drawings.

Mistakes to avoid

1. Departing from the plan to stage and limit access points, material storage areas, and equipment storage areas
2. Installing inadequate perimeter controls, e.g. inadequate sediment fencing or construction fencing

Soil or media particles smaller than sand and larger than clay (3 to 60 m)

Low Impact Development. A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting.

Soil, sand and minerals washed from land into water, usually after rain. They pile up in reservoirs, rivers and harbors, destroying fish-nesting areas and holes of water animals and cloud the water so that needed sunlight might not reach aquatic plans. Careless farming, mining and building activities will expose sediment materials, allowing them to be washed off the land after rainfalls.