Guidelines for Safety Inspection of Dams - Central Water Commission

Chapter V
REPORTS
5.1 The first report on the project evaluation would be compilation
of information in the format given at Appendix I.
5.2 The study of the data and the classification of the dam in
respect of its hazard potential form the second report. In case
the hazard potential of a dam is classified as high, the same
should be reported immediately to the project authority, State
Government, Central Water Commission (Dam Safety
Organization).
5.3 Phase – I Report
5.3.1 The Phase I report is an investigation report after a study of
the design data and behaviour of the dam and a detailed
inspection of the site. Appendix II gives the guidelines for
performing field inspection and can serve as a basis for
developing a detailed checklist to suit the characteristics of the
particular project or structure. The fundamental objective of
the inspection is the detection of any existing or developing
structural or hydraulic weakness. Appendix III indicates the
structures, features, events and evidence which should be
looked for.
5.3.2 The Phase I report should contain a summary of existing
engineering data, including geological maps and information,
results of inspections and photographs.
5.3.3 Evaluation of operational adequacy of reservoir regulation and
maintenance of dam and operating facilities and features that
pertain to the safety of the dam.
5.3.4 Description of warning system in effect, if any. Evaluation of
the hydraulic and hydrological assumptions and structural
stability.
5.3.5 An assessment of the general condition of the dam with
respect to safety based upon the findings of the visual
inspection and review of engineering data. Where data on the
original design indicate significant departures from or nonconformance
with guidelines contained herein, the engineerin-charge
of the investigation will give his opinion of the
significance, with regard to safety, of such factors. Any
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