Salient Features

Total Drainage area:

12,100 km2

In Nepal:

2,380 km2 (19.7%)

In India:

9,720 km2 (80.3%)

Turbine Design Discharge:

2897.1m3/(Source: DPR, 1995; Appendix 5.8)

(241.42 m3/s for each turbine*12)

Firm Energy Production

8216 GWh/Y

Average Energy Production

10671 GWh/Y

Normal Maximum Water Level:

680 m.a.s.l

Minimum Operational Level:

615 m.a.s.l

Live Storage Volume:

6.56 billion m3

Dead Storage Volume:

5.7 billion m3

Total Storage Capacity:

12.26 billion m3

Design Flood for dam stability:

23,500 m3/s

Peak of Probable maximum flood:

23,237 m3/s

Design Flood of Spillway:

1800 m3/s

Last year maximum discharge (at Bhadra):

12912.48 m3/s (Source: Kantipur daily, 2068-04-32)

Average flow:

582 m3/s

Surface Reservoir Area at NMWL:

13,400 hectares Flood inundation

In Nepal:

3,850 hectares(28.73%)

In India:

9,550 hectares (71.26%)

Total Drainage Area

:

13,384 km2 both in India and Nepal

Average monthly flow

:

631m3/s

Design flood

:

35,700 m3/s

Sediment load

:

7 million t/year 

Normal Maximum Water Level (NWML)

:

420m a.s.l

Minimum Operation Level

:

410m a.s.l

Live Storage Volume

:

70 million m3

Surface Area at NWML in Nepal side alone

:

258.0 hectares

Dam height:

:

83 m (from the deepest foundation level)

Crest elevation:

:

428 m a.s.l

Crest length:

:

310m

Deepest foundation elevation:

:

345 m a.s.l

Riverbed elevation

:

368 m