Basis of Design Book 2 - City of St. Petersburg
Basis of Design Book 2 - City of St. Petersburg
Basis of Design Book 2 - City of St. Petersburg
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C. Existing Pier<br />
The existing Pier is scheduled for demolition, so a detailed survey <strong>of</strong> the Pier was not<br />
undertaken during the field visit. However, there were numerous observations and<br />
discussions with the <strong>City</strong> team that may have bearing on the design <strong>of</strong> the new Pier.<br />
These are addressed below.<br />
1. Underpinning <strong>of</strong> Western End <strong>of</strong> Pier<br />
According to the <strong>City</strong> personnel present, the placement <strong>of</strong> the current bulkhead was<br />
done in conjunction with the underpinning <strong>of</strong> the western 20 spans <strong>of</strong> the old Pier. This<br />
underpinning was accomplished by means <strong>of</strong> placement <strong>of</strong> sand and grout below the<br />
deck surface. In addition, grout has been pumped into this area through the years in<br />
conjunction with the bulkhead maintenance and repair program. The combination <strong>of</strong><br />
these factors - the original pier structure combined with subsequent grouting - would<br />
add to the cost <strong>of</strong> demolition <strong>of</strong> this western end <strong>of</strong> the structure. The prior placement <strong>of</strong><br />
the bulkhead as integral to Pier Bent 21 would also complicate removals in this area. It<br />
should be noted that the scope <strong>of</strong> the upcoming Pier demolition project (being<br />
conducted by a team separate from the team designing the new "Lens" Pier) will not<br />
address demolition in this area.<br />
2. Utilities<br />
In addition to the<br />
aforementioned<br />
utility services in<br />
evidence at the<br />
upland areas, Buro<br />
Happold observed<br />
the utilities on at<br />
the inverted<br />
pyramid building at<br />
the east end <strong>of</strong> the<br />
Pier, and spoke<br />
with the persons in<br />
charge <strong>of</strong><br />
maintaining the<br />
Pier. Utility<br />
services arriving at<br />
the building include<br />
an 8" water<br />
service, two 4"<br />
electrical conduits,<br />
communication<br />
lines, and a force<br />
main for sanitary Photo 14: Sewer ejector pits on south side <strong>of</strong> Pier<br />
waste. The<br />
maintenance person pointed out the location <strong>of</strong> the sewer ejector pits on the south side<br />
<strong>of</strong> the building, near the boar slips. See Photo 14. The maintenance personnel stated<br />
that there were no major problems with existing utility services. It was also noted that<br />
storm drainage on the Pier goes directly into the bay.
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