102
Coastal Engineering: Theory and Practice
shoreline details, bathymetry, shoreline oscillations over the past years, and
most importantly the magnitude and direction of littoral drift.
4.5 Coastal Protection Measures
4.5.1 General
Coastal protection is any manmade measure or structure in the vicinity of
the shoreline, (i.e. between the shoreline and breaker line) to combat against
the forces that bring up a drastic change in the coastal morphology. This
could be either protecting the coast as well as winning the beach through
déposition of sand through artificial means or by construction of structures.
The other situation calling for protection is for creating desired érosion or
avoiding/minimizing siltation in particular near river mouths. Protection
measures can be broadly classified as hard and soft measures. The detailed
classification is shown in Fig. 4.4.
Fig. 4.4 Broad classification of coastal protection measures.
4.5.2 Hard measures
This refers to the protection measures that will leave behind a morphological/geographical/geological/environmental/ecological foot print in
addition to the shore protection itself. In other words, a permanent change
is effected as a resuit of any structure or measure undertaken to improve
the stability of the shoreline. These measures when designed and executed
Coastal Engineering: Theory and Practice
shoreline details, bathymetry, shoreline oscillations over the past years, and
most importantly the magnitude and direction of littoral drift.
4.5 Coastal Protection Measures
4.5.1 General
Coastal protection is any manmade measure or structure in the vicinity of
the shoreline, (i.e. between the shoreline and breaker line) to combat against
the forces that bring up a drastic change in the coastal morphology. This
could be either protecting the coast as well as winning the beach through
déposition of sand through artificial means or by construction of structures.
The other situation calling for protection is for creating desired érosion or
avoiding/minimizing siltation in particular near river mouths. Protection
measures can be broadly classified as hard and soft measures. The detailed
classification is shown in Fig. 4.4.
Fig. 4.4 Broad classification of coastal protection measures.
4.5.2 Hard measures
This refers to the protection measures that will leave behind a morphological/geographical/geological/environmental/ecological foot print in
addition to the shore protection itself. In other words, a permanent change
is effected as a resuit of any structure or measure undertaken to improve
the stability of the shoreline. These measures when designed and executed