The Sand Motor reach Potential for worldwide sandy strategies
Jaap van Thiel de Vries
Ecoshape | Boskalis – Hydronamic
September 14, 2016
The Dutch Context
City of Egmond
• Shortage of natural sediment
• Consequence: Structural erosion
• Solution: Nourishments
• Sea level rise
• Traditional nourishments since 1970’s • Shoreface nourishments since 1990’s • Now experimenting with the Sand Engine!
Nourishment strategies for maintenance
• Scale (Time and Space)
• Shape: dynamic instead of equilibrium
• Multi-purpose solution (coastal safety+ )
• Multiple fathers and mothers
The Sand Motor: a unique solution
International opportunities?
Gold Coast, Australia
Las Teresitas Beach (Tenerife, Spain
International opportunities?
International opportunities?
Amager Strandpark (Copenhagen, Denmark)
International opportunities?
RISK….
To What extend does Dutch context suit the other side of the world?
No lack of attention in past five years
• Indonesia • Jamaica • Peru, Lima • Sweden • United Kingdom • Vietnam
International case studies
Lima, Peru (artist impression)
• Start point is local context (reference situation) • Match of scales? • Dynamic objectives? • Does sand fit the culture? • What is the alternative?
Sand Motor: stepping stone towards system
based nourishments
Hondsbossche en Pettermer sea defense (2015)
• Joint effort and responsibilities • Joint challenge!
• Not for copy paste
• Take the approach: Building with Nature
• Plenty worldwide opportunities
• Joint responsibility to make it happen…
…. with critical role to engineering consultants
In conclusion