HomeMy WebLinkAbout2.d. Emergency Siren ReplacementsROSEM0UNTEXECUTIVE SUMMARY
CITY COUNCIL
City Council Work Session: May 12, 2010
AGENDA ITEM: Emergency Siren Replacements
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AGEND S TION:
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PREPARED BY: Gary Kalstabakken, Chief of Police
AGENDA NO. r)
ATTACHMENTS: Siren Map
APPROVED BY:
RECOMMENDED ACTION: Discussion
BACKGROUND
There are currently twelve (12) emergency warning sirens within the City. A replacement plan was begun
in 2009 to update the inventory because six (6) of the sirens were 1975 vintage era. The CIP includes
funds to replace two sirens annually.
ISSUE
Quotes have been received to replace two sirens this year. Two vendors provided quotes: Federal
Warning Systems and American Signal Corporation (ASC). Last year ASC provided the lowest price and
was the selected vendor. ASC is known nationally but a local rep was not in this area until 2009.
Rosemount became one of ASC's first customers in the metro area. Installation services will be provided
by Nelcom at a cost of $5420 per siren for either siren vendor.
_QUOTES (per siren)
ASC $9360 + $5420 = $14,780
Federal $11,921 + $5420 = $17,341
Based on the quotes received it is recommended that 3 or 4 sirens be replaced.
• The price from ASC is a very good price.
• $52,000 is included in the CIP for siren replacement in 2010.
• $13,000 was encumbered from 2009 CIP funds for siren replacement.
One siren has failed this year; the siren at Co. Rd. 42 and Emery Avenue is frozen and will not rotate. An
estimated repair cost is $6000. While the other older sirens are functioning properly now, maintenance
and repairs can be expected. In addition, due to FCC regulations radio work to re -band the siren radios
will be done in 2011. The older siren radios will need to be replaced as part of this mandate at an
estimated cost of $2500 per siren. In comparison, the new sirens have digital radios that will only need to
be reprogrammed for the re- banding and will cost about $300 per siren.
An additional consideration for replacing the sirens is the improved performance of new sirens. The ASC
siren has a slightly larger coverage area than the existing sirens. More importantly, the old sirens only
operate on AC power while all the new sirens will have battery power backup. This becomes important in
those weather events when electrical power is knocked out by one storm and then followed by a more
severe storm. Without battery power, the existing sirens could not be activated in this common scenario.
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