OBLIQUE BREAKWATERS FOR MULTI-PURPOSE BEACH RECREATION AND SHORE PROTECTION

  • William Dally

Abstract

Breakwaters, jetties, and groins have long been used in the littoral environment as port, navigation, shoreline stabilization and beach protection structures. Customarily however, the recreational benefits of structures such as these have been realized only incidentally. For example, jetties built solely to stabilize an inlet almost immediately attract surfers who exploit the break created by waves reflecting from the structure. This is the case at Sebastian Inlet, Florida, where the world renowned ‘First Peak' was created when the north jetty was lengthened in the early 1970's. Often when the waves elsewhere are too small to surf, one can rely on First Peak to be surfable. Also, under conditions of large, long-period swell, although the normally incident surfbreak elsewhere tends to ‘close-out', not only is First Peak an excellent break, but sometimes a second and third surfable peak appear.

References

Lynett, P., Wu, T.-R., and Liu, P. L.-F. (2002). "Modeling Wave Runup with Depth-Integrated Equations." Coastal Engineering, v. 46(2), p. 89-107.

Lynett and Liu (2008): Modeling Wave Generation, Evolution, and Interaction with Depth-Integrated, Dispersive Wave Equations; COULWAVE Code Manual, Cornell University Long and Intermediate Wave Modeling Package v. 2.0, 90 p.

Published
2018-12-30
How to Cite
Dally, W. (2018). OBLIQUE BREAKWATERS FOR MULTI-PURPOSE BEACH RECREATION AND SHORE PROTECTION. Coastal Engineering Proceedings, 1(36), structures.65. https://doi.org/10.9753/icce.v36.structures.65