Table 8 



Example of Beach Fill Area Profile Survey Scheme 



Year 



Times /Year 



Number of Profiles 



Pre-fill 



2 



Collect within fill area and at control locations in 

 summer and winter months to characterize seasonal 

 profile envelope (beach & offshore). 



Post-fill 



1 



Collect all profiles immediately after fill placement at 

 each site (beach & offshore) to document fill volume. 

 Collect control profiles immediately after project is 

 completed. 



1 



4 



Four quarterly survey trips collecting all beach and 

 offshore profiles out to depth of closure. Begin series 

 during the quarter following the post-fill survey. 



Continue year 1 schedule to time of renourishment (usually 4-6 years). If project is a single 

 nourishment, taper surveys in subsequent years: 



2 



2 



6- and 1 2-month survey of all beach and offshore 

 profiles 



3 



2 



6- and 1 2-month survey of all beach and offshore 

 profiles. 



4 



1 



12-month survey of beach and offshore profiles. 



Note: 



• If project is renourished, repeat survey schedule from post-fill immediately after each 

 renourishment to document new fill quantity and behavior. 



• Project-specific morphology and process requirements may modify this scheme. 



• Monitoring fill after major storms is highly desirable to assess fill behavior and storm 

 protection ability. Include both profile and sediment sampling. Conduct less than one 

 week after storm conditions abate to document the beach and offshore response. 



(From CERC (1991)) 



lateral continuity. In a cross-shore direction, the uppermost and lowermost 

 limits of the profiles should be located where change is unlikely to occur, and 

 should adequately cover the most active zones such as the shore and upper 

 shoreface. The preferred closure depth is at the toe of the shoreface, although 

 a selected depth contour where variability becomes minimal is acceptable. 

 Historical shorelines are an important component of where these uppermost 

 and lowermost limits are located, particularly along rapidly changing 

 coastlines. For example, shore and dune deposits formed during earlier stages 

 of development that are now distant from the modern shoreline are likely to 

 be affected by marine or lacustrine processes only during large storms. 

 Large-scale aerial photographs or maps of these interior areas are usually ade- 

 quate for examining these more stable features. Appropriate longshore dimen- 

 sions of the survey grid depend upon the nature of the problem. Profile lines 

 should be connected with a shore-parallel survey to determine positions and 

 elevations of each profile relative to one another. 



Chapter 3 Field Data Collection and Observation 



63 



