strength at the present location, and ships would have more time to reduce 

 speed while entering under a flood current. 



If a dredged-material island is created through dredging of the relocated 

 waterway and through normal maintenance of the MSC, then this island should 

 be located on the north side of the GIWW to reduce the potential for the flood 

 current to transport sediment into the channel. 



If the GIWW is relocated, a low-level monitoring program should be estabhshed 

 to confirm the performance (shoaling characteristics - causes and locations) of 

 shoaling in the new waterway and of infilling of the existing GIWW. The 

 infilling of the existing waterway wiU provide valuable data to the Galveston 

 District for understanding waterway shoaling rates in open-bay areas as a 

 function of the processes. The monitoring would include quarterly condition 

 surveys and maintenance of two current meters combined with water level and 

 wave gauges, one each at the relocated and existing waterways. The monitoring 

 program should be initially estabhshed to run for 3 years, with annual reports 

 summarizing the measurements and project performance. 



Chapter 4 Summary and Recommendations 51 



