PART IV: CONCLUSIONS 



28. Based on the test conditions and test results reported herein, it 

 is concluded that: 



a. Plan 1 (4-ton, 140-pcf dolosse) might prove capable of with- 

 standing the wave and swl conditions of Hydrograph A, but the 

 structure shows a high potential to sustain significant damage 

 on the crown and upper lakeside slope. Thus it is thought to 

 be a very marginally acceptable design that probably will re- 

 quire significant amounts of maintenance if exposed to con- 

 ditions similar to those of Hydrograph A (Table 1). 



b. Plan 1 is a very inadequate design for wave and swl conditions 

 of Hydrograph B (Table 2) and could accrue extensive damage to 

 the dolosse on the crown and upper lakeside slope if exposed to 

 these conditions for any length of time. 



c. Plan 1 appears to be a stable design (sustaining only minor 

 crown damage) for the wave and swl condition of Hydrograph C 

 (Table 3). 



d. Plan 2 (2.3-ton, 143-pcf dolosse) appears to be a stable design 

 and should sustain only minor crown damage when exposed to the 

 wave and swl conditions of Hydrograph D (Table 4). 



e. Plan 3 (9- to 20-ton, 155-pcf armor stone) appears to be a 

 stable design and should sustain only slight to minor damage in 

 an area extending from the swl to the crown when exposed to the 

 wave and swl conditions of Hydrograph A. 



17 



