Timber Bulkhead and Subsoil Filling to Form 

 Artificial Shore of Lake Excavated in Poor So/7. 



Fiu. IS. 



This pipe discharges 



into city sewer at 



conuer.ient intervals 



Method of Removing 



Qround and Surface Water 



Collecting behind 



Retaining Wall. 



FIG. 19. 



55 



