specs

Geotechnical Investigation South River Place, Gasser Drive, Napa 29 December 2010
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Based on our conversations with Mr. Don Harton of Cinemark, the theater building is anticipated
to be constructed with masonry, concrete tilt-up panels and/or pre-cast exterior cladding.
Structural steel columns and beams may also be utilized. Wall loads of 4 to 7 kips per square
foot and column loads of 65 to 160 kips are anticipated. The interior slab floors of each
auditorium will be placed at two elevations such that near the center of the building, the slabs
will be at the same elevation of the lobby and then sloped down 3 to 5 feet along the exterior
walls.
The four additional structures are anticipated to one-story in height, except for Retail 2 which
may be two-stories with retail below and office above. These structures will likely be
constructed of conventional structural steel and wood framing and have slab-on-grade floors.
Typical wall loads are anticipated.
An asphalt concrete paved parking lot will be constructed on the southern end of the site and an
additional parking lot will be added to the west of the transitional housing project. As noted
above, Hartle Court will also be widened along the northern project frontage. Grading is
expected to consist primarily of cuts and fills of up to 3 vertical feet or less, to achieve the design
pad and subgrade levels, not including removal of the approximately 15-feet high stockpile. The
exception is the southern portion between Hartle Court (old) and the pond which may require
approximately 7 feet of fill to achieve the design grades. We understand that the existing
stockpile and any other excess soil materials will be utilized as general fill to level the site.
Previous Investigation
We previously investigated the geotechnical conditions of the surface and subsurface soils of the
entire Gasser South property and Supportive Housing Project, of which the subject site is part,
and prepared the Reference 1 and 2 reports. We have included the Appendixes from the original
(2002) and subsequent (2009) investigations within Appendix B and C of this report,
respectively. Our original field investigation was performed on the 13 th and 14 th of May 2002
and included a reconnaissance of the site and the drilling of 8 exploratory borings and the
excavation of 14 test pits (See Appendix B for boring and test pit logs). Furthermore, the
Supportive Housing field investigation was performed on 11 September 2009 and included a
reconnaissance of the site and the drilling of 4 exploratory test borings (See Appendix C for
boring logs). For informational purposes, we have shown the borings and test pits, on the new
Site Plan, Figure 4 in Appendix A.
Subsequent to our 2002 investigation, we performed laboratory testing on the imported stockpile
materials discussed previously. Four samples were collected on 28 February 2005 from test pits
at the Imola Bridge embankment. Environmental testing was performed by CLS Laboratories on
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