HomeMy WebLinkAboutItem 09 - Main Street Fire Sprinkler Project .�; �k,..;1�� � __�..._.__�...._....a.s�.==--_-
' MEMO TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: BRUNO RUMBELOW, CITY MANAGER ��'
MEETING DATE: JULY 15, 2008
SUBJECT: MAIN STREET FIRE SPRINKLER PROJECT CHANGE ORDER
# 1
RECOMMENDATION:
City Council consider approving Change Order #1 & Final to the Main Street Fire
Sprinkler Project in an amount of $110,632.40, authorize City Staff to execute said
change order, and take any necessary action.
FUNDING SOURCE:
Funds are currently available in the Project Fund Balance account 200-48930-534-8-
000004WA.
BACKGROUND:
The Main Street Fire Sprinkler System Project began construction on the evening of
February 10, 2008 and, with few exceptions, has been a six night per week project since
that first evening.
With the project being a retrofit project of extremely old buildings with virtually no plans
of the existing structures, the initial scope of the needed improvements prepared by the
City's consultant, Reed Fire Protection Engineering, was an educated estimate of the
coverage needs.
As the project has progressed from block to block, the contractor has been able to
closely inspect the detail of each building's roof structure and interior layout, discovering
additional spaces and crawl space levels that need to be protected with this project. The
net result has been an additional 140 sprinkler heads throughout the project
representing a 7% increase in the total number of heads to 2,110 and an additional 83
dry pendant heads at three locations. These dry pendant heads are freeze proof and
were installed in spaces that are unheated. ($58,756)
The change order also includes cost for additional design by the contractor due to the
added complexity of the needed systems in each block as well as user change outs and
site changes during the project that have required re-design of certain spaces. ($9,920)
R:IAGENDA\07-15-08\Main St FP CO#1.doc
The owner at 338 Main Street requested changes to his space which will be added to his
�- private cost for the project. ($7,622)
The City staff initiated changes at two locations to make the system less obtrusive in
areas where the ceilings were very low. ($ 5,980)
Finally, the change order includes the cost to paint the pipes in those locations where
the system was exposed to the patrons to improve the look of the finished product. The
black pipe, as large as 4" in diameter, is basically a black steel pipe with industry
specifications printed periodically on the sides. Additionally, the storage and installation
of the pipe results in the pipe being scraped and scuffed. Finally, all of the pipe
couplings come from the factory painted bright orange. We have gotten a price from a
painting company to paint all of the pipes exposed to the public to provide a much better
blending with the background ceilings and exposed truss work. ($28,354.40)
As you recall, the bid for the construction of the project by Firetrol was significantly below
the original estimate for the public improvements, yielding a total savings in contract
construction costs of $455,632.76. This change order adds $110,632.40 to the original
bid of $1,087.993.00 for a revised total contract cost of $1,198,625.40. This cost will be
distributed between the property owners and the City in the original ratio of 36.57%
Private and 63.43% City.
Staff feels the changes were justified to insure a successful project and feels that the
x painting should be undertaken to close out the project with an aesthetically pleasing final
product.
The cost including the change order is less than the original engineer's estimate and
most of the building owners will realize a reduced cost based on the original estimate.
Staff recommends approval.
R:IAGENDA107-15-081Main St FP CO#1.doc
CITY OF GRAPEVINE
CONTRACT MODIFICATION AGREEMENT
PROJECT: Main Street Fire Sprinkler System Project �,,
OWNER: City of Grapevine
ENGINEER: Reed Fire Protection Engineering
CONTRACTOR: Firetrol Protection Systems
DATE: July 15, 2008
CHANGE ORDER: 1
- UNIT 'GONTRACT 'QUANTITY ` ADJUSTEd " GOST ?'
ITEM DESCRIPTION UNIT PRICE QUANT[TY CHANGE QUANTlTI` ' ADJUSTMENT -
ADD ITEMS
Additional Sprinkler Heads EA $250.00 1,970 140 2110 $35,000.00
Special Dry Heads LS $23,756.00 0 1 1 $23,756.00
Miscellaneous
Additional Design Due to User& LS $9,920.00 0 1 1 $9,920.00
Site Change Outs
Painting of Exposed Pipes LS $28,354.40 0 1 1 $28,354.40
Owner Requested Additions
338 Main St LS $7,622.00 0 1 1 $7,622.00
City Initiated Changes LS $5,980.00 0 1 1 $5,980.00
Subtotal Miscellanous $51,876.40
DELETE ITEMS y}4`�`'
Original Contract Amount $1,087,993.00
Previous Change Orders $0.00
Change Order#1 &Final $110,632.40
Adjusted Contract Amount �1,198,625.40
The compensation agreed upon in this Change Order is for all costs the CONTRACTOR has incurred or may incur as a result of or
relating to the changes in the scope of work whether said cost are known, unknown,foreseen or unforeseen at this time, including
without limitation,any cost for dealy, extended overhead, ripple or impact cost,or any other effect on changed or unchanged work
as a result of this Change Order. The compensation is for fully complete and in-place construction. The actual quantities of items
installed or constructed have been measured and the quantities herein are adjusted accordingly.
City of Grapevine Firetrol Protection Services
By: BY�
Mathew A. Singleton Date Date
Director of Public Works
Print Name
�.