Read Skywalk Construction Meeting Minutes, March 4, 2009 (PDF)

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Amphitheater, Identification of facilty that will provide enclosed space for Nalive
dancers and performers, to keep warm in colder temperatures.
. Retail Cluster. Future development to potentially be expanded to adapt to descending
terrin, achieving a multi-storied building without exceeding height standards.
. EP North Rim Outlook Trail. Development of a trail to the northwest of the Skywalk to
maximize outlook vistas availabie to the public.
. Special Events Plaza. Identification of open-spaced plaza south of Skywalk.
. Site Remediation, Consideration of strategies aimed at remediating severely impacted
site between the Amphitheater and the Skywalk facilty. Landscape architecture may
apply elevation lift, rock work, and indigenous vegetation.
. Cul-de-sac, Establishment of 50' radius, compliant with residential zoning standards.
Supports fire suppression activities and special event staging.
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. Parking. Parking alternative utilizing descending terrain near nort rim, without creating
cross-circulation points of confict for pedestrians and vehicles. Alternatives to be
considered.
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R. Mal.ntv. C, Daines Tribal Elders. Input Obtain input frm Hualapai Tribal Elders regarding the EP Sit Plan.
WAIJEL C. Daln.s ParkIng Alternaties Develop altrnatie parkng strteies for EP that prerve Nort Rim vita.
WAIJEL, C, Daines EP Master Plan Schedule Revise Gantt Chart projectng completion of EP Master Plan pro.
C, Daines Stimulus Funding Exmine Stimulus funding that may support constrcton cots of EP Master
Plan.
ß, Utilty Development.
.:. Power.
. Cummins Assessment of Propane Generators. A letter from Rocky Mountain
Cummins Power Generation Division was reviewed by the committee. Cummins had
Inspected the propane gensets and made recommendations to GCRC on 2/4/09
regarding the need for a major overhaul of both units. The cost of a new diesel generator
(300KVA sized engine) is approximately $61,000. The cost to overhaul each propane
generator is $50,000. The committee agreed that a new purchase would be more
prudent than attempting to refurbish 15-year old gensets, and that the trade-in value of
the generators should be explored.
. Permanent Utilty Yard Location, Weller Architects and JEL & Associates reviewed the
design development of a utility yard and recommended placing two diesel engine
generators southwest of the Skywalk building approximately 1,000 feet near the area of
the proposed sewage treatment plant This would locate generators away from the
Skywalk building and public gathering areas. This would also require larger conductors
between the generator and the buildings. The conductors would be installed in
underground conduits, however, in the future when grid power is extended to the site, the
connection point would be in the area of the generators with no disruption of Skywalk or
plaza area activities. Diesel fuel tanks would be located near the engine generators, an
addiUonal reason to keep them remote from the Skywalk area and public gathering areas.
The use of sound attenuation enclosures was discussed to minimize noise impact
throughout EP site. Effective fuel containment systems wil be incorporated in AlE
designs to provide protection against fuel spilage at site.
. Considerations of Short-term Utilty Yard Location, During the 1-14-09 Skywalk
meeting, an alternative for short-term power was discussed. A diesel generator might be
rented that could hook directly to the Skywalk building so that the elevator, fire alarm, and
MEP could be tested as soon as possible, until such time that gensets and fuel tanks are
configured within the utility yard near the Advantex site. This alternative is functional but
is not eco-sensitive given the possibilty of a fuel spil in close proximity to the Grand
Canyon rim (in this case within 30'), impacts to the north rim ledge to support the
configuration of gensets and fuel tanks, noise impact to existing operations, and visibilty
of the utility yard from the Skywalk building. It is recommended that the permanent
solution be implemented as soon as possible involving the location of the utilty yard
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GCSD010442