Table 17 



Test Conditions and Overtopping Rates for Park Dike with 1978 



Profile 



Run No. 



SWL 

 ft mlw 



Wave 



Height 



ft 



Wave 



Period 



sec 



Seawall 

 Crest 

 Elev. 

 ft mlw 



Dike 

 Crest 

 Elev. 

 ft mlw 



Beach 

 Elev. 

 ft mlw 



Over- 

 topping 

 cfs/ft 



21 



16.6 



8.9 



15.9 



21.3 



24.0 



9.3 



0.0855 



22 



16.6 



11.0 



15.9 



21.3 



24.0 



9.3 



0.0960 



23 



16.6 



10.0 



15.9 



21.3 



24.0 



9.3 



0.0844 



24 



16.6 



11.4 



13.0 



21.3 



24.0 



9.3 



0.0836 



25 



16.6 



11.0 



13.0 



21.3 



24.0 



9.3 



0.0713 



26 



16.6 



10.0 



13.0 



21.3 



24.0 



9.3 



0.0642 



27 



14.8 



9.6 



15.9 



21.3 



24.0 



9.3 



0.0015 



28 



14.8 



8.4 



15.9 



21.3 



24.0 



9.3 



0.0041 



29 



14.8 



7.2 



15.9 



21.3 



24.0 



9.3 



0.0002 



30 



14.8 



9.9 



13.0 



21.3 



24.0 



9.3 



0.0017 



31 



14.8 



8.6 



13.0 



21.3 



24.0 



9.3 



0.0026 



32 



14.8 



7.7 



13.0 



21.3 



24.0 



9.3 



0.0013 



33 



17.6 



8.9 



15.9 



21.3 



24.0 



9.3 



0.2574 



34 



16.6 



8.9 



15.9 



21.3 



24.0 



13.1 



0.0220 



35 



16.6 



10.0 



15.9 



21.3 



24.0 



13.1 



0.0437 



36 



16.6 



11.4 



13.0 



21.3 



24.0 



13.1 



0.0278 



37 



16.6 



10.0 



13.0 



21.3 



24.0 



13.1 



0.0207 



38 



16.6 



8.9 



15.9 



21.3 



24.0 



16.8 



0.0121 



39 



16.6 



10.0 



15.9 



21.3 



24.0 



16.8 



0.0162 



40 



16.6 



11.4 



13.0 



21.3 



24.0 



16.8 



0.0058 



41 



16.6 



10.0 



13.0 



21.3 



24.0 



16.8 



0.0000 



42 



16.6 



8.9 



15.9 



18.5 



24.0 



9.3 



0.0719 



43 



16.6 



10.0 



15.9 



18.5 



24.0 



9.3 



0.0769 



44 



16.6 



11.4 



13.0 



18.5 



24.0 



9.3 



0.0612 



45 



16.6 



10.0 



13.0 



18.5 



24.0 



9.3 



0.0644 



prevented rundown on the slope and produced a hydraulic head between 

 the park dike and the seawall. 



Test 22 increased the wave height to 11 ft and produced greater over- 

 topping. Test 23 used the same conditions as Tests 21 and 22, except for a 

 wave height of 10.0 ft. Although the wave height in Test 23 was 1.1 ft 

 greater than in Test 21, the measured overtopping was less by about 1 per- 

 cent. This slight discrepancy could be caused by the random nature of the 



Chapter 5 Revere Dike Study 



53 



