4. Coastal Erosion and Protection Measures Including Case Studies
131
SCALE 1:100
TYPICAL SECTION OF SEAWALL
CWPRS (PUNE) 0*54-1969
Crestof seawall +2.74 m, armour layer 110-170 dm3 with a filter layer of
quarry run. (TYPE A, 1964 to 1969)
TYPICAL SECTION OF SEAWALL
MODIFIBD DESIGN
CWPRS (PUNE) ( 1969-2005)
Crest of seawall +3.35m, armour layer 175-225 dm3 with a filter layer of
quarry run/fascine mattress. (TYPE B, 1969 to 1996)
Crest of seawall +3.5 m, armour layer 175-225 dm3 with a filter layer of geofabric filter with
sand cushion over it. (TYPE C, 1996 to 2005)
Crest of seawall +3.90m, armour layer 175-225 dm3 with a filter layer of
quarry run/fascine mattress at selected stretches of the coast (TYPE D,
1971 to 2005)
Fig. 4.19 Designs adapted from 1964 to 2005.