Contents preface (VII) introduction 1—37

6.5.2.5. Typical Example of Maintenance Aspects
Some maintenance aspects of a Head Regulator to be included in the maintenance plan are as follows (29) :

1. 
   Approach Channel. For sediment-free maintenance of approach channel specify
   

• 
  Methods such as reduction of sediment entry into the channel by judicious operation of river sluices during floods
  

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  Frequency of silt clearance of approach channel and maintenance thereof to its origi-nal design, and
  

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  Masonry protection works of the channel to be maintained in good condition.
  

2. 
   Gauges. Gauges must be kept clean and painted regularly so as to remain clearly readable without ambiguity. Approach to gauge is to be maintained for all weather use.
   

3.