This document discusses investigations for reservoir sites. It begins by introducing the Gerusoppa Dam in Honnaver, Karnataka, India as a reference project. It then lists several purposes of reservoirs like navigation, sedimentation control, water supply, hydropower, fish culture, irrigation, and flood control. Engineering surveys like topographical surveys, geological surveys, and hydrological surveys are conducted to gather data on the site. Key considerations for suitable reservoir sites include the river valley being narrow at the dam site, the reservoir basin being water tight, and the stored water quality being satisfactory. Ideal sites are also deep, submerge minimal land, and are easily accessible. The document outlines different storage zones in a reservoir like the normal

1. IMRAN BK
2AB16CV
402PRESENTATION ON
MODULE 5 :
RESERVOIRS
1.INVESTIGATION
FOR RESERVOIR
SITE
2.STORAGE ZONES
LETS START

2. purpose
investigation
focus
site
zone
referenc
e
GERUSOPPA DAM, HONNAVAR (T.Q),
UTTAR KANNADA,KA,IN

3. purpose
investigation
focus
site
zone
referenc
e
NAVIGATIONAL PURPOSE
SEDIMENTATION CONTROL
WATER SUPPLY FOR DOMESTIC &
INDUSTRIAL
HYDROPOWER PLANT
FISH CULTURE
IRRIGATION
FLOOD CONTROL

4. purpose
investigation
focus
site
zone
referenc
e
321
ENINEERING
SURVEY
GEOLOGICAL
SURVEY
HYDROLOGICAL
SURVEY

5. purpose
investigation
focus
site
zone
referenc
e
CONTOURPLAN
STORAGE
CAPACITY
SITE SELECTION
ENNG. GEO.
SPILL WAY
PASSAGE FOR SURPLUS WATER OVER OR
AROUND A DAMWHEN THE RESERVOIR ITSELF IS
HYDRO.
SOIL INESTIGATION
SBC OF SOIL
WATERLOG.
RAWMATERIALS
RUNOFF STUDY
HYDROGRAPHS
SPILL WAY
DESIGN

6. purpose
investigation
focus
site
zones
referenc
e
01 02 03
NARROW
The river valley at the site
should be narrow at dam
site.
WATER TIGHT
reservoir basin
also should be water tight.
WATER
QUALITY
The quality of the water
stored in the reservoir must
be satisfactory
04 05 06
DEEP
Reservoir site should be
deep to reduce the
evaporation loss
FAR
possible minimum land and
property submerged in
the reservoir.
ACCESSIBLE
The site should be easily
accessible for the supply of
raw materials and

7. purpose
investigation
focus
site
zone
referenc
e

8. purpose
investigation
focus
site
zones
zones
NORMAL POOL LEVEL/
MAX. CONSERVATION
LEVELIT IS THE MAX. ELEVATION
TO WHICH THE RESERVOIR
WATER SURFACE WILL RISE
DURING NORMAL
OPERATING CONDITION.
USEFUL STORAGE
VOLUME OF WATER
STORED IN A
RESERVOIR BETWEEN
THE MIN. POOL AND
NORMAL POOL
LEVELS
DEADSTORAGE
WATER STORED IN
THE RESERVOIR
BELOW THE MIN.
POOL LEVEL.
MIN. POOL LEVEL
THE LOWEST WATER
SURFACE
ELEVATION ,WHICH
HAS TO BE KEPT
UNDER NORMAL
OPERATING
CONDITION IN
RESERVIOR
01 03
02 04

9. purpose
investigation
focus
site
zones
zones
MAX. POOL LEVEL OR
FULL RESERVOIRLEVEL
THE MAX. LEVEL TO WHICH
THE WATER RISES DURING
WORST DESIGN FLOOD.
SURCHARGE
STORAGE
VOL. OF WATER
STORES BETWEEN
NORMAL POOL LEVEL
AND MAX. POOL
LEVEL.
VALLEY
STORAGE
EVEN BEFORE A DAM
IS
CONSTRUCTED,CERT
AIN VARIABLE
AMOUNT OF WATER IS
STORED IN STREAM
BANKSTORAGE
WHEN THE
RESERVOIR IS FILLED
UP,CERTAIN AMOUNT
OF WATER SEEPS
INTO TH PERMEABLE
RESERVOIR
BANK.THIS COMES
OUT AS SOON AS THE
RESERVOIR GETS
DEPLETED.
04 06
05 07

10. purpose
investigation
focus
site
zone
referenc
e
For
IRRIGATION
ENGINEERING
More
AND
Refer
HYDRAULIC
STRUCTURES
TEXT
_ BY SANTO SH
KUMAR GARG