Figure 11. Representative profiles from (a) R-94D north control, (b) R-96F P.E.P. Reef, and (c) R-100B south control (from Dean and Chen, 1996).

Figure 9. Cumulative change in volume by zone at Midtown Palm Beach, Florida (after Dean and Chen, 1996)

Figure 12. Average settlement after 33 months for the first 57 units and after 20 months for the remaining 273 units at the P.E.P. Reef installation at Midtown Palm Beach (after Dean and Chen, 1996).

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Stauble and Tabar

Figure 11. Representative profiles from (a) R-94D north control, (b) R-96F P.E.P. Reef, and (c) R-100B south control (from Dean and Chen, 1996).

The wave transmission coefficients measured at the reef

The settlement of the units has reduced it effectiveness.

indicated a range of 0.70 to 0.90 and over the natural bottom

DEAN and CHEN (1995c) concluded that the P.E.P. Reef struc-

at 0.79 to 0.97 (BROWDER, 1994), which suggests that the

ture was responsible for about two-thirds of the erosion mea-

P.E.P. Reef was not reducing the wave energy as predicted.

sured landward of the reef. One third was attributed to the

Journal of Coastal Research, Vol. 19, No. 3, 2003

Western Governors University

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