Beach-Fill Specifications 
The beach fill within Contract 1A has a design berm width of 100 ft, a 
design berm elevation of 10 ft mean high water, and a berm cap of 2 ft. The 
mean low water shoreline for the 100-ft design berm is presented by the dashed 
line in Figure 3. The stationing labels presented in this figure are used later to 
reference specific positions along the beach fill and as identifiers for beach 
profile surveys. The construction template has a 1V:15H slope from the berm to 
mean low water. Below mean low water, the construction template slope 
decreases to 1 V:20H as shown in Figure 4. 
Scope of Study 
Four hypotheses have been developed as potential causes of the hot spot 
found within Contract 1A: wave focusing by Shrewsbury Rocks, cross-shore 
adjustment, beach-fill end losses, and beach-fill planform adjustment. These 
hypotheses will be further examined in this report to determine the contributing 
factors of the accelerated erosion at the hot spot. 
Wave focusing by Shrewsbury Rocks 
Shrewsbury Rocks is a rock outcropping located approximately 1.2 miles 
northeast of the hot spot at Monmouth Beach, New Jersey. It is hypothesized 
—— Pre-fill Profile 
Construction Template 
Design Fill Template 
QO 
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Zz 
3 
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LW 
400 600 800 1000 1200 1400 
Distance from Baseline (ft) 
Figure 4. Design and construction template (New York District 1989) 
Chapter 1 Background 
