Green Building

Erosion & Sedimentation control
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Objective:

Control erosion and sedimentation to reduce its negative impact on water and air quality.

Requirements:

Follow National Building Codes of India (NBC, Part 10, Section 1, Chapter 4). Protection of Landscape during Construction.
The plan shall meet the following objectives:
• Prevent loss of soil during construction by storm water run-off and/ or wind erosion, including protecting topsoil by stock-piling for reuse
• Prevent sedimentation of storm sewer or receiving streams and/ or air pollution with dust and particulate matter.

Preserve topsoil by stockpiling and reuse. Because topsoil is naturally enriched with organic contents and reusing it make fertile for flora.

Strategies:

Erosion and Sedimentation control plan implement at design stage itself.

It can be controlled by structural and stabilization method.

Stabilization methods includes

Temporary Seeding : Temporary seeding provides protection for no more than one year, during which time ... Temporary seeding controls runoff and erosion

Permanent Seeding : Permanent vegetation controls erosion by physically protecting a bare soil surface from raindrop impact, flowing water, and wind

Mulching : Mulch is a protective covering, usually of organic matter such as leaves or straw, placed around plants. It prevents the evaporation of moisture, the growth of weeds and (in cold climates) it prevents freezing of roots. It can have a positive effect on the fertility of the soil.  The layer of mulch also provides shelter and food for beneficial insects and spiders that feed on small insects that are present in the mulch.

Structural method includes:

Earth Dike : Temporary ridges of compacted soil that are used to divert run off and storm water to a desired location.
Silt Fence : A silt fence, or filter fence, is a temporary sediment control device used on construction sites to protect water quality in nearby water body.
Sediment Trap : It is a pond like structure designed to retain runoff from disturbed areas allowing suspended sediment to settle out. Runoff is temporarily detained under quiescent conditions, allowing sediment to settle out or before the runoff is discharged.
Sediment Basin : A sediment basin is a temporary pond built on a construction site to capture eroded or disturbed soil that is washed off during rain storms, and protect the water quality of a nearby Water body. Sediment basins shall be inspected weekly at minimum and within 24 hours after a precipitation event of 0.5 inches or greater.

Responsible person:
Civil Engineer
Owner
Landscape Architect
Mechanical Engineer
Interior Designer
etc.