Alternatives

Hydraulic measures

S.N

Sediment control measures

Increasing the height of embankments over time (Q1)

1

Reduction of supply of sediments (S1)

Sleeper dikes (Q2)

2

Koshi high dam (S2)

The use of an old Koshi course (Q3)

3

Narrowing of the river with permanent structures (S3)

Controlled flooding, flood storage (Q4)

4

Narrowing of the river with recurrent measures (S4)

Koshi high dam (Q5)

5

Dredging (S5)

6

Controlled flooding using old course (S5)

7

Controlled flooding with storage areas (S6)

8

Removing embankments and Koshi barrage (S7)