Beach Nourishment Projects
Beach nourishment performance and longevity fluctuate greatly, and can be improved by applying five key elements in preliminary design.
1) Rigorous shoreline inventory of coastal processes and geology.
2) Development of a volumetric erosion database.
3) Preparation of geomorphic models of sand transport pathways, sources, and sinks.
4) Determination of a target beach condition.
5) Early confirmation of borrow sources within economical distances.
The authors have applied this approach in over 40 nourishment projects totaling ~30 million cubic meters along meso- and micro-tidal shorelines with lower- to higher-than-average wave climates. The majority of projects had renourishment intervals of >8 years.