IV. GEOTECHNICAL CONSIDERATIONS 



4-01. GENERAL 



This preliminary geotechnical study assumes the project layout 

 as shown in the Tudor Wharf plans provided by CBT and received 

 by H&A on 22 March 1988. As further information is developed 

 by the design team concerning building layout, structural 

 building and column loads, bay spacing, site grading and other 

 details, the preliminary recommendations presented herein will 

 have to be reviewed and revised as required. 



4-02. PROPOSED BUILDINGS 



As indicated on Figure 2 and in the plans provided by CBT, the 

 Tudor Wharf development will include three predominant 

 structures: 1) an office structure with below grade parking, 

 2) a pier structure extending over Boston Harbor, and 3) a 

 walkway connecting the office and pier structures. These 

 structures are described in further detail as follows: 



1. Office Structure and Below Grade Parking: 



o A three to four level below grade parking area with a 

 footprint approximately 185 x 285 feet to be 

 constructed approximately 30 to 40 ft. below ground 

 surface. 



o An "L"-shaped six-story office building located above 

 a majority of the underground parking area. 



2. Pier Structure: 



o A five-story building with a footprint approximately 

 80 x 240 feet. 



o No below grade space is envisioned for the pier 

 structure. 



3. Walkway: 



o A one-level corridor at approximately El. 100.0 (NACA) 

 which connects the first level of the below grade 

 parking area to the pier structure. 



o The corridor portion of the walkway is approximately 

 12 X 100 feet long. At the end of the walkway a lobby 

 and elevator shafts are proposed; this area is 

 approximately 24 x 24 feet in plan. 



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AQK 



OG 33 



