19-128 Service Order r#1 Spencon Construction, 2019 Reconstruction of Curbs, Gutters, and Sidewalks, Project No. 2019-110CITY OF
CUPEflTINO
2018/2019 Reconstruction of Curbs, Gutters and Sidewalks
PROJECT N0. 2019-101
CONTRACT CHANGE ORDER
M -igF3
DATE:2/4/2020
Contractor:
Spencon Construction
3508 Depot Road, Ste S
Hayward, CA 94545
CCO# l
The following changes are hereby approved, notwithstanding language in any attachment to the contrary, Contractor
agrees that the amount paid pursuant hereto is full and complete compensation for the work described herein for each
and every entity involved in the project who is being compensated hereunder and that each and every claim for any cost
for schedule impact such as a delay, impact, inefficiency, acceleration, extended overhead, increased supervision,
compression and all other factors affecting cost arising from the subject of this Change Order is hereby released and
waived by all such Subcontractors and suppliers at all tiers.
Item No.Unit Unit Cost Description QTY Cost
1 SF $13.00 Remove and Replace Sidewalk 870 $11,310.00
3 LF $67.00 Remove and Replace Curb & Gutter 120 $8,040.00
18 TN $275.00 Asphalt Placement 33 $9,075.00
CCOI-01 LS $19,000.00 Homestead Rd Traffic Control 1.00
$19,000.00
CCOI-02 SF $25.00 New Commercial DW 216.00 $5,400.00
CCOI-03 SY $105.00 Cold Plance and Remove AC (6" Min -
full depth)94.00
$9,870.00
CCOI-04 SF S20.00 Remove /Replace 3" Driveway AC 378.00 $7,560.00
CCOI-05 LF S95.00 Remove /Replace AC Curb 14.00 $1,330.00
CCOI-06 LF 510.00 6" White Line (thermo)120.00 $1,200.00
Change Order 1-2019 Reconstruction of Curbs Gutters and Sidewalks Page 1
(:tTY OF
CUPERTINO
2018/2019 Reconstruction of Curbs, Gutters and Sidewalks
PROJECT N0. 2019-101
CONTRACT CHANGE ORDER
Total
Change Order No.l $72,785.00
Total Project:
Original Contract
Change OrderNo.l
1,010,850.00
$72,785.00
Revised Contract $1,083,635.00 $72,785.00
ScheduleImpact: N/A
Project Final Completion Date: 20-'May-20
APPRO
Spencon Constnuction
President
Date:
Date:
Roger{ee
Director of Public Works
Change Order 1-2019 Reconstruction of Curbs Gutters and Sidewalks Page 2
Roadway and Sidewalk Repair 2044"l Homestead Rd, Cupertino
Date: February 4, 2020
Project: 2019 Reconstruction of Curbs, Gutters and Sidewalks - CCO1
Project No. 2019-110
Description of Work:
The work is composed of removing existing curb, gutter, sidewalk, driveway approach and
paving damaged by two large Torre pines, and/or previous trench work in the street. The work
will involve a City provided arborist to determine which roots can safely be removed. If
removing roots will significantly affect the health and/or stability or the trees the entire trees may
need to be removed. The work will have to progress in stages to allow for arborist involvement.
The work is detailed as follows:
Traffic Control
Close off bike lane and sidewalk during work. Provide sidewalk closed ahead warning signs
and barricades at Bluejay Drive and Homestead Road. Provide required advance warning signs
including "Share the Road" signs for bicyclist. Provide two "Bike Lane Closed Ahead" signs east
of the project as directed by City. Place cones on the gutter side of the bike lane every 25 feet
which will remain in place from initiation of work to completion of concrete and sidewalk
replacement work.
Traffic may be limited westbound to one lane between 9 AM and 4 PM on weekdays. During
non-work hours, both lanes shall be open. Provide temporary signage as required for this work.
Concrete Removal
Remove existing concrete curb, gutter, sidewalk and driveway approach in their entirety.
Sawcut at conforms. Remove base sufficiently to provide new required aggregate base. Be
careful not to damage tree roots. Tree roots shall be located and exposed prior to removing
base. Removal includes saw cutting pavement 12 inches away from gutter lip and removing
pavement as well.
Expose Tree Roots
Using hand tools only, or an airspade remove base and soils around tree roots to a depth of 12
inches in preparation for arborist to inspect. Excavated soil and base shall be left alongside
excavated area for replacement.
Trim Roots as Directed by Arborist
Provide two laborers with suitable equipment including a small chain saw and a fine-toothed
saw appropriate for cutting wood to remove roots identified by arborist. Axes and similar tools
are not to be used for root pruning. Provide truck for removing roots from site and disposal.
Once roots are trimmed mark locations where roots continue under pavement. Scarify entire
area under sidewalks excluding areas where roots are to remain to a depth of 6 inches,
moisture condition and recompact to form subgrade for new aggregate base under sidewalk.
Compaction shall be 90% per CT 216 or ASTM Di557. Arborist has discretion to decrease
compaction requirements around roots to remain.
Remove Trees (Alternate)
If arborist determines trees may be removed, city will hire a contractor to remove trees.
Place New Concrete
Place new concrete Facilities per City Standards including aggregate at the same locations as
removed. Comp(y with current ADA cross slope requirements.
Cold Plane Full Depth (6" Min)
Remove by cold planing a uniform 7-foot width the entire length of curb and gutter replacement.
Remove Roots under Pavement
Scarify and remove roots to a depth of 6 inches below mill depth. Remove roots and recompact
to 95o/o relative compaction.
Place %" HMA
Place HMA in cold planed area per contract.
R&R (3") Residentia( Driveway Pavement
Sawcut at conform. Remove existing AC. Remove tree roots 6 inches deep. Repave with %"
HMA.
Remove and Replace AC Curb
Remove and replace the AC curb on the side of the driveway pavement.
Replace Bike Lane
Install new bike lane markings after paving