vs:] 



Fig. 52. China Basin Turniinal San Francisco. Concrete caisson construction, showing tops of 

 caissons in place, piles being driven inside caissons and concrete being poured. 



(Board of Slcili- Harbor Corn's. Photo.) 



This type of support was used in constructing the China Basin Terminal. (See 

 p. 30.) The caissons had a rectangular section 7.5 ft. by 20 ft. and were 47 to 50 ft. 

 high; the rectangular section was divided by partitions into three coni[)artnients. 

 The outer wall or shell was abotit 7 inches thick, the partitions () inches thick. 



Fig. 5.V Construction of California-Hawaiian Sugar Refining Co. warehouse at Crockett, showing 

 ops of reinforced concrete piers and forms in place for groined arches. 



