catalog of prefabricated
coastal protection
units

${\displaystyle {\frac {H_{s}}{\Delta \cdot d_{n50}}}={\sqrt[{3}]{K_{d}cos\alpha }}}$

Year	1999 (but brought to market in 2004)
Inventor	Jeffrey A. Melby, Stephen R. Collinsworth
Country	USA
Company	US Army Corps of Engineers
Layer coefficient kΔ	1.516
Shape coefficient ks	0.2236
Stability number kd	13 (head) 16 (trunk)
Preferred design formula	Use Hudson formula with appropriate kd value
Application	double layer, random placement
Application range	large waves
Patent	US8132985B2
Trademark	"Core-Loc" is an registered trademark, owned by USACE
Wikipedia pages

• The name Core-Loc may only be used outside USA with a license from the license owner, CLI (Concrete Layers Innovations). Within USA license is required from USACE.