wave flume and is not input with the still-water level. The test series was 

 therefore rerun with information from SBEACH by excluding the wave 

 setup adjustment. Wave conditions and water levels for the second set of 

 tests are shown in Table 2. Note that hr 15 and 28 were added to the sec- 

 ond set of tests to more accurately reflect the storm profile. Results of 

 only the second set of tests were used to calculate overtopping during the 

 storm, but results of both sets of tests were used in determining a regres- 

 sion equation relating water level, wave conditions, and freeboard to over- 

 topping rate. 



Table 2 



Revised Wave Data from Numerical Model SBEACH and 

 Interpolated Wave Conditions Tested for 1978 Storm at Revere 

 Beach, Profile 2 



Hour 



SWL 

 ft, mlw 



Wave 



Height 



ft 



Wave 



Period 



sec 



SWL 

 Tested 

 ft, mlw 



Interp 

 Wave Ht 

 ft 



Interp 

 Wave Per 

 sec 



13 



10.1 



6.0 



8.1 



11.0 



6.3 



8.2 



14 



13.2 



7.2 



8.6 



13.2 



7.2 



8.6 



15 



14.3 



10.8 



9.0 



14.3 



10.8 



9.0 



16 



13.0 



10.1 



9.7 



13.2 



10.2 



9.6 



17 



12.1 



6.8 



10.3 









18 



10.2 



6.1 



11.0 



11.0 



6.4 



10.5 



19 



8.0 



5.0 



11.3 









24 



7.5 



5.3 



12.0 









25 



10.0 



6.0 



12.3 



11.0 



6.3 



12.4 



26 



12.9 



7.0 



12.7 



13.2 



7.1 



12.7 



27 



14.8 



7.7 



13.0 



14.8 



7.7 



13.0 



28 



14.7 



7.7 



13.0 



14.8 



7.7 



13.0 



29 



13.4 



7.2 



13.0 



13.2 



7.1 



13.0 



30 



11.0 



6.3 



13.0 



11.0 



6.3 



13.0 



31 



8.1 



5.3 



12.7 









For the second set of tests, the swl at hr 30 was chosen for the lowest 

 water level (11.0 ft mlw), and the swl at hr 14 was chosen for the higher 

 water level (13.2 ft mlw). Similar to the first set of tests, linear interpola- 

 tion was used to determine the time at which the swl to be tested occurred 

 and the wave height and period at that time. Test conditions are shown in 

 Table 2. 



Because of time restraints imposed by having to rerun the storm pro- 

 file, the second set of tests was reduced to a single 20-min run at each of 

 the four test conditions on the lowest water level (1 1 .0 ft mlw), two 10-min 

 runs at each of the test conditions at the next higher water level (13.2 ft 



12 



Chapter 3 Research Tasks A, B, and C 



