SL 450-2009
Standard for classification of risk grade of landslide lake (English Version)

Standard No.

SL 450-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

Professional Standard - Water Conservancy

Status

Be replaced 2022-02

Replace By

SL/T 450-2021

Latest

SL/T 450-2021

Scope

This standard applies to barrier lakes formed by blocking rivers due to landslides, collapses, debris flows, etc. The disposal of barrier lakes formed by glacial deposits should be specially studied and certified.

SL 450-2009 Referenced Document

• GB 50201 Standard for flood control*， 2014-06-23 Update
• SL 252 Classification of water conservancy and hydropower projects and flood standards*， 2017-01-09 Update
• SL 274 Design specifications for roller compacted earth-rock dams*， 2020-11-30 Update

SL 450-2009 history

• 2021 SL/T 450-2021 Risk level classification and emergency response technical specifications for barrier lakes
• 2009 SL 450-2009 Standard for classification of risk grade of landslide lake

SL 450-2009 Standard for classification of risk grade of landslide lake was changed to SL/T 450-2021 Risk level classification and emergency response technical specifications for barrier lakes.