CONTENTS - Central Public Works Department

368 APPENDIX 4
PROFORMA 3-D OF APPENDIX - 4
CENTRAL PUBLIC WORKS DEPARTMENT
No. Dated, the
To
The Executive Engineer,
.............................
.............................
Name of Work:
Kindly furnish the following information for the above work of Storm Water Drainage of the area as
early as possible in order to enable this office to prepare project estimate for the same.
1. Give a survey plan of the area for which the Drainage system is to be designed showing the spot
levels at intervals of 60m and proposed layout of roads and buildings. Formation levels of ground
along side of the roads and crown levels of roads may be given at intervals of 60m.
2 (a) If the area forms of part of a bigger catchment, a site and contour plan of the entire catchment
area should be given.
(b) If it is likely that drainage from the upper portion of the catchment enters the area now proposed
to be developed, suggest measures to intercept the drainage or indicate the probable additional
run off to be allowed for.
3. The maximum intensity of the rainfall in the area and its duration and the total annual rainfall.
4. Nature of the soil and vegetation in the area.
5. Full particulars of any natural water course or Nallah passing near the area into which the area
under consideration can be drained, together with the HFL in the storm water drainage. A plan
showing the Nallah and “L” section of the Nallah showing the HFL for about 400 metres above and
below the point where it is proposed to discharge the drainage into the Nallah may also be supplied.
For Superintending Engineer(P)
.............. Zone, CPWD.
No. Dated, the
Copy forwarded to:
1. The Executive Engineer (Electrical) .............. Division .............. for furnishing the information in
connection with the existing electric mains, their distance from the area, type of power available and
adequacy of electric energy etc.
2. The Superintending Engineer .............. Circle, CPWD, for information.
3. The Superintending Engineer .............. Electrical Circle, CPWD, for information.
For Superintending Engineer(P)
.............. Zone, CPWD.