HomeMy WebLinkAboutAgenda Report - July 15, 1992 (47)CW
CITY OF LODI
AGENDA TITLE:
AGENDA TITLE:
Mel
tlt;;�ctrical
(Stadium)
COUNCIL COMMUNICATION
Improvement Project at the Grape Bow
MEETING DATE: July 15, 1992
PREPARED BY: Parks and Recreation Director
RECOMMENDED ACTION: That the City Council approve the proposed
electrical improvement project for the Lodi
Grape Bowl ( stadium) .
BACKGROUND INFORMATION: In 1989,Hans Hansen, Assistant Utility
Director, addressed a potential electrical
problem at the Grapa Bowl. Hansan stated
that the stadium had inadequate electrical
service and antiquated direct buried cable which made this facility
'an accident waiting to happen' meaning that whenever the facility
was used under lights a complete blackout could occur. Hansen's
feeling was that something should be done to correct this potential
situation as soon as possible. (See Exhibiti A attached)
After reviewing these concerns the City hired HCS Engineering Inc.
to evaluate the situation at the Grape Bowl and their findings
supported Hansen's recomrr.endations, This firm also addressed the
amount of light at field level, and suggested that something be
done to improve this situation.
The City Utility Department and j agree that we proceed with
upgrading the stadium electrical system and addressing the amount
of light available at field level. Our plan is to move ahead with
redirecting and cleaning existing lights and fixtures and to place
additional lights and fixtures removed from the Xofu Park light
project midway up the light towers to guarantee us the necessary
candle power at field level for our athletic activities. At the
conclusion of the high school football season we would then
complete the project by bringing in the necessary electrical
service and replacing the direct buried cable. I am comfortable
that this method, at a cost of $90,000.00 to $100,000.00, will
provide us with an excellent solution and at a savings from the
original engineering estimate of $130,000.00.
APPROVED.
THOMAS A. PETERSON
City Manager
Lai
recycled paper
CC- i
CI=N OF LODI � � COUNCIL COMMUNICATION
Electrical Improvement Project at the Grape Bowl (Stadium)
Page 2
FUNDING: As of the May 1992 C.Z.P. expenditure report, $133,908.00
has been appropriated. (Account # 121.0-760-78)
Ron Williamson
Parks and Recreation Director
Rini: mef
Bob McNatt, City Attorney
Attachment
4"
APPROVED: %J
'THOMAS A. PETERSON recycled D+Vn
City Manager
cc., J
445RI \W,
T0: RON WILLIAMSON, PARKS & RECREATION DIRECTOR
FROM: HANS HANSEN, ASSIST. ELECTRIC UTILITY DIRECTOR
DATE: MAY 2, 1989
SUBJECT: LIGHTING AND POWER REQUIREMENTS IN STADIUM, ZUPO & ARMORY PARKS
This memorandum summarizes the major points discussed at a meting on
April 27, 1989, regarding electric service for lighting sys.Iems,
concession stands, etc., at Stadium, Zupo and Armory Park facilities. The
meeting was attended by Ron Williamson, Parks & Recreation Director, Hans
Hansen, Assist. Electric Utility Director and Mel Grandi, Electrical
Engineer.
The condition of the existing high-voltage supply system was discussed.
It has been known for some time that this system has deteriorated, due to
age, to a point where reliability and thus continuity of service is at
best questionable. The direct -buried cable concept used when this system
was installed only compounds the service restoration time, in the event of
a cable failure.
It is the intent to redesign and reconstruct the electric supply system to
all three park facilities. The Electric Utility Department will be doing
this task and has received electric lighting load data for the ultimate
light level design in the three parks. This data, in connection with the
electric capacity needs in concession stands, restroonis, auxiliary use
receptacles, etc., will enable the Department to design a system capable
of meeting all future needs as projected today.
However, during the meeting some other items of concern were discussed and
should be addressed prior to design of the supply system. One such item
is emergency lighting. If required, the level of safety lighting to
vacate the premises in the event of a major area power interrupeion must
be determined. Such an interruption would leave the area dark, should it
occur during an evening event. It was also discussed to consider
installation of some incandescent luminaires in order to provide 'instant'
lic,hting in the event the normal lighting system is turned off. Please
ncte that it takes approximately 15 minutes for high intensity, discharge
lighting systems to relight after a turn off. This incandescent lighting
could also be used for emergency lighting with a standby generator or
battery source.
Other items discussed were the design of the lighting control system, the
auxiliary use system and the ability to interface the existing systems
into the ultimate systems in an orderly and phased manner.
Memo to Ron Williamson, Parks & Recreation Director
Page two
May 2, 1989
Due to the current workload and the workload anticipated during the next
two to three years on the Electric Utility Department's engineering staff,
time is not available to do the necessary in-depth study of the
above-mentioned needs. It is recommended that the Parks & Recreation
Department consider retaining professional assistance to review the
current systems, consider and incorporate the need of the ultimate
systems, including control, emergency lighting and auxiliary use systems,
and develop and design a system that permits a phased upgrading of the
systems in the three park areas.
The Electric Utility Department will design a supply system meeting the
needs of the above recommended review and design of the various systems
within the parks. It is further recommended that if such outside
assistance is selected, a meeting be scheduled early on in the process
between the Electric Utility Department and the outside assistance to
discuss various design limitaticns that may exist regarding voltage and
phase relationship, etc.
At this time,. the. Electric Utility Department
design of the supply system pending your action
supply system can be designed at present.
analysis of future needs, as discussed above,
become inadequate in the future. Please inform
want to proceed.
cc: Electric Utility Director
El ectri cal Engineer
is on 'hold' regarding the
on this recommendation. A
However, without thorough
such a supply system may
us as to the direction you