Jenis - jenis Surface Drainage

Terdapat perlbagai jenis Surface Drainage & ianya berlainan fungsi :-

a) Interceptor Drain

b) Bench Drain

c) Roadside Drain

d) Sub soil Drain

e) Median Drain

d) Shoulder Drain

e) Cascade Drain

f) Berm Drain

g) Toe Drain

h) Scupper Drain