Coastal Structures: Types, Functions And Applications

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How does sand move past a groin Sand can only travel where the water flows 2. Over 3. Through 4. Around landward end 1. Around seaward end 50
To add permeability to a groin: • Lower the crest • Shorten seaward extent • Shorten landward extend • Use material with voids To reduce permeability: • Raise the crest • Lengthen seaward extent • Lengthen landward extend • Eliminate voids 51
Page 1 and 2: Coastal Structures: Types, Function
Page 3 and 4: SOFT v.s. HARD (Erodable v.s. Noner
Page 5 and 6: Advantages of Hard Structures v.s.
Page 7 and 8: 1. Coastal Armoring Structures More
Page 9 and 10: Seawalls •Often concrete •May b
Page 11 and 12: Scour protection Seawalls Typical c
Page 13 and 14: Seawall Hereford Inlet, NJ Wall add
Page 15 and 16: Digression #1: Three coastal damage
Page 17 and 18: Heavier seawall materials can withs
Page 19 and 20: What is overtopping Overtopping is
Page 21 and 22: Scour: loss of material at the toe
Page 23 and 24: Coastal Armoring: Revetments • Pu
Page 25 and 26: Digression #2: How to Build a Rubbl
Page 27 and 28: How to Build a Rubblemound Structur
Page 29: How to Build a Rubblemound Structur
Page 32 and 33: Revetments Fort Fisher, NC before F
Page 34 and 35: Bulkheads Anchored Anchor pile Tie
Page 36 and 37: Bulkheads Bulkheads: “Every homeo
Page 38 and 39: Types of Coastal Structures 1. Coas
Page 40 and 41: Nearshore (Detached) Breakwaters
Page 42 and 43: Nearshore Breakwaters Maumee Bay St
Page 44 and 45: Groins • Not jetties! • Trap %
Page 46 and 47: Groins Overhead view of a rock groi
Page 48 and 49: Groins Terminal groin Buried groin
Page 52 and 53: Reefs and Sills • Purpose is to l
Page 54 and 55: Double-T Units & Scour Apron 54
Page 56 and 57: “Beachsaver” Units Patented sha
Page 58 and 59: Containment Dikes •Stabilize peri
Page 60 and 61: Types of Coastal Structures • Coa
Page 62 and 63: -Smaller vessels are more affected
Page 64 and 65: Jetties Acting as breakwaters Sourc
Page 66 and 67: Jetties Barnegat Inlet, NJ (new sou
Page 68 and 69: Jetties (Dolos/CoreLoc) Manasquan I
Page 70 and 71: Floating Breakwaters • Purpose is
Page 72: Construction of first hydraulically

Coastal Structures: Types, Functions And Applications

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