Wave height test results obtained for Plan 7 are presented in Table 7 for 

 test waves from 101 deg with the +2.7-m (+8.8-ft) swl and 88 deg with the 

 +2.7-, +3.7-, and +4.1-m (+8.8-, +12.0-, and +13.6-ft) swl's. Maximum wave 

 heights along Camp Ellis Beach were 1.2 and 1.4 m (3.9 and 4.7 ft) for the 

 101- and 88-deg directions, respectively, with the +2.7-m (+8.8-ft) swl. 

 Significantly less overtopping was observed for the Plan 7 spur structure for 

 test waves for the +2.7-m (+8.8-ft) swl as opposed to that obtained for Plan 6. 

 Maximum wave heights along the beach for test waves from 88 deg with the 

 +3.7-m and +4.1-m (+12.0- and +13.6-ft) swl's were 1.8 and 1.9 m (5.9 and 

 6.3 ft), respectively. 



Wave-induced current patterns and magnitudes for Plan 7 are shown in 

 Photos 90-93 for representative test waves from 101 and 88 deg with the 

 +2.7-, +3.7-, and -i4.1-m (+8.8-, +12.0-, and +13.6-ft) swl's. In general, cur- 

 rents in the vicinity moved in a northerly direction. Maximum velocities 

 obtained along the immediate Camp Ellis Beach area were 0.3 m/s (1.0 fps) 

 for 15-sec, 5.5-m (18-ft) test waves from 88 deg with the +3.7-m (+12.0-ft) 

 swl. Current velocities moving northerly, seaward of the spur, were greater 

 than those moving along the shoreline. Typical wave patterns secured for 

 Plan 7 also are shown in Photos 90-93. 



General movement of tracer material along the beach for Plan 7 is shown in 

 Photos 94-98 for representative test waves from 101 and 88 deg. For test 

 waves from 101 and 88 deg with the +2.7-m (+8.8-ft) swl, sediment tracer 

 migrated shoreward (Photos 94-96) and did not move north out of the immedi- 

 ate area as it did for existing conditions and the previously tested improvement 

 plans. For extreme storm conditions from 88 deg with the +3.7- and +4.1-m 

 (+12.0- and +13.6-ft) swl's, sediment material overwashed the fixed bed model 

 overbank (Photos 97 and 98). Runup was significantly less, however, than that 

 obtained for existing conditions, as shown in Photos 29 and 30. It was noted 

 that sediment tracer was not transported north out of the immediate area of 

 Camp Ellis Beach for this test plan. 



Results of wave height tests conducted for Plan 8 are presented in Table 8 

 for test waves from 101 deg with the +2.7-m (+8.8-ft) swl and 88 deg with the 

 +2.7-, +3.7-, and +4.1-m (+8.8-, +12.0-, and +13.6-ft) swl's. Maximum wave 

 heights along Camp Ellis Beach were 2.29 and 2.26 m (7.5 and 7.4 ft), respec- 

 tively, for the 101- and 88-deg direcfions with the +2.7-m (+8.8-ft) swl. The 

 Plan 8 structure resulted in more wave energy along the beach than the Plan 7 

 structure. Maximum wave heights along the beach for test waves from 88 deg 

 with the 3.7- and 4.1-m (+12.0- and +13.6-ft) swl's were 2.8 and 2.9 m 

 (9.3 and 9.5 ft), respectively. 



Wave-induced current patterns and magnitudes for Plan 8 are shown in 

 Photos 99-102 for representative test waves from 101 and 88 deg with the 

 +2.7-, +3,7-, and -Hl.l-m (+8.8-, +12.0-, and +13.6-ft) swl's. Currents in the 

 vicinity, in general, moved in a northerly direction. Maximum velocifies 

 recorded along the immediate Camp EUis Beach area were 0.24 m/s (0.8 fps) 

 for 13-sec, 5.5-m (18-ft) waves from 88 deg with the +2.7-m (+8.8-ft) swl. 



Chapter 4 Tests and Results 



27 



