HomeMy WebLinkAboutCO 4 CITY OF RENTON
Public Works Department • CAG-11-030, CO #4-12
CONTRACT CHANGE ORDER AGREEMENT
CONTRACT: Lake Washington Blvd N. Storm&Water System Improvement Project C.O.# 4
(CAG-11-030)
CONTRACTOR: KC Equipment,LLC
SUMMARY OF PROPOSED CHANGES:
Item #A55-CO #4: The contractor installed bio-degradable erosion mats and berms to the bioswale area and
cut out plant wells in the mats to accommodate bio-swale planting and reduce erosion off the Swale slope
during heavy rains. The contractor is requesting an additional $5,000 for materials, labor and equipment to
install the erosion control structures.
Item #625-CO#4: At station 20+57 a conflict with the existing fiber optic&installed storm pipe required the
new 12-inch ductile iron pipe to need two vertical bends, shackling and concrete blocking at the bends.
Approximately four hours of down time was required to determine the course of action and included one
laborer, one operator, a flagger and an excavator on standby until the City was able to determine what was
needed and to respond/solve the discrepancy in the design plans. The contractor is requesting an additional
$2,500 for labor, equipment and material costs to install this vertical deflection to avoid the new storm pipe with
adequate vertical separation between the utilities.
Item #B26-CO#4: At station 11+10 there was a conflict between the fiber optic, gas and the proposed 6-
inch water main to connect with the proposed fire hydrant. The contractor installed two additional bends in
order to pass under the existing fiber optic and gas mains. The contractor is requesting an additional $1,500 for
the additional shackling work, labor,concrete, and pipe bend materials needed to deflect this pipe beyond the
original work for just pipe and trenching.
The cost breakdown for these items are listed below and is full compensation for all work described above:
Bid Item Description Ouantitv Unit Unit Cost Cost
A55-CO4 Erosion control matting&rolls for 1 Lump Sum 5,000.00 $5,000.00
bioswale
B25-CO4 Vertical Deflection of 12-inch DI 1 Lump Sum 2,500.00 $2,500.00
B26-004 Vertical Deflection for 6-inch water 1 Lump Sum 1,500.00 $1,500.00
to Hydrant
A Subtotal $5,000.00
B Subtotal $4,000.00
Tax-Rule 170 for $380.00
Items"B-" _+
Total $9,380.00
ORIGINAL CONTRACT CURRENT CONTRACT ESTIMATED NET CHANGE ESTIMATED CONTRACT
AMOUNT AMOUNT THIS ORDER TOTAL AFTER CHANGE
$854,171.55 $889,409.27 $9,380.00 $898,789.27
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The proposed change fee described aAL is within the Lake Washington Blvd N.Storm er System Improvement
Project CIP budget. Attached is the actor's request for the change.
SIGNATURES:
Contractor: Y _ Date: i-ti-zv 1 Z
Project Engineer: �L Date:
Approved By: Date:
Ly Homsby,Utility Systems Director
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