HomeMy WebLinkAboutCO 4CAG-17-108, CO #4-18
CITY OF RENTON
Public Works Department
CONTRACT CHANGE ORDER AGREEMENT
CONTRACT: CAG-17-108 Harrington Ave NE Green Connections Stormwater Retrofit C.O. #4
Project - Phase 2, SWP-27-3731
CONTRACTOR: DPK, Inc.
SUMMARY OF PROPOSED CHANGE:
Additional Work for the Construction of Sidewalk Ramps and Placement of Crushed Surface Top Course (CSTC)
This change order is for the compensation for all labor and equipment used for additional work related to the
construction of sidewalk ADA ramps and placement of crushed surface top course (CSTC) under curb, gutter, and
sidewalk ramp areas. The construction plans and specifications did not require the placement of CSTC under
new sidewalks, curbs, and gutters per Standard Plan No.102 dated 11/21/14, which was in place when the
contract was awarded on 07/17/17. Standard Plan No.102 was then revised and approved on 10/9/17 to
require the placement of CSTC under the sidewalk ramps, curbs, and gutters. The required additional work
included clearing, grading, and re -grading the existing surfaces prior to placing the CSTC to comply with the new
approved city standard plan and requirements. During construction, the construction plans for the sidewalk
ramps were modified with additional slopes, cross sections, and more reference points to provide information
necessary for the contractor to do the work to ensure the new sidewalk ramps were in compliance with ADA
standards and requirements. The re -design of sidewalk ramp areas required the contractor to perfrom
additional work. An additional five (5) working days were approved for the additional work.
ESTIMATED TOTAL CHANGE ORDER COST = $35,042.68
Additional Working Days added to the Contract for this Change Order: 5
ORIGINAL CONTRACT AMOUNT
CURRENT CONTRACT AMOUNT
ESTIMATED NET CHANGE
ESTIMATED CONTRACT
THIS ORDER
TOTAL AFTER CHANGE
$904,036.00
$984,457.96
$35,042.68
$1,019,500.64
SIGNATURES:
Contractor: -►�
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Project Manager:��
Approved By: Yrt J
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Approved By: T14,//
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Approved By:
Attest:
Approved
Utility Systems Director
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Jason Seth,
Date: /D —/ d - / o
Date: /0--/i _ / IR
Date:
Date:
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H:\File Sys\SWP - Surface Water Projects\SWP-27 - Surface Water Projects (CIP)\27-3731 Harrington Ave -Ph_ II\1600 Construction\1606
Change Orders\Change Order\CO-4\CO 4-Extra Work Sidewalk
Harrington Ave NE Green Connections Stormwater Retrofit Project - Phase 2
Change Order No. 4
Additional work related to the construction of sidewalk ramp
Labor
Classifications
Qty
Hrs. Ea
Total Hrs.
Hrly Rate
Total
Forman
1
16
16
67.88
$1,086.08
Operator
2
16
32
$68.10
$2,179.20
Pipelayer
1
16
16
$55.12
$881.92
Truck Driver
1
16
16
$60.75
$972.00
Laborer
1
1 16
1 16
1 $54.13
$866.08
Flaggers
2 1
16
1 32
1 $46.03
$1.472.96
Total Labor
29% Labor Markup
Total Labor & Markup
Equipment
$7,458.24
$2,162.89
$9,621.13
Unit No.
Equipment Description
Hours Worked
Rates
Total
Regular
Standby
Regular
Standby
Regular
Standby
K-73
KOMATSU 120-6 EXCAVATOR
-
16
-
$13.11
-
$209.76
K-30
Komatsu PC-120-3 Excavator
16
-
$53.93
-
$862.88
-
K-26
1 Cat Wheel Loader 950-A
16
-
$55.60
-
$889.60
-
K-48
Mack Dump Truck
-
16
-
$7.49
-
$119.84
K-48 PT
Pony Trailer
-
16
-
$3.69
$59.04
K-101
Roscoe RB 38 Sweeper
2
-
$32.85
-
$65.70
-
K-70
Chevy Flatbed 1.5 TN
16
$31.60
$505.60
K-99
Chevy 1500 SILVERADO
16
$20.82
$333.12
Total Equipment
21% Equipment Markup
Total Equipment & Markup
Total Change Order Labor & Equipment
$2,656.90 $388.64
$639.56
$3,685.10
$13,306.23
Harrington Ave NE Green Connections Stormwater Retrofit Project - Phase 2
Change Order No. 4
Additional work related to CSTC Placement
Classifications
Classifications
Qty
Hrs. Ea
Total Hrs.
Hrly Rate
Total
Forman
1
24
24
67.88
$1,629.12
Operator
2
24
48
$68.10
$3,268.80
Pipelayer
1
24
24
$55.12
$1,322.88
Truck Driver
1
24
24
$60.75
$1,458.00
Laborer
1
24
24
1 $54.13
$1,299.12
Flaggers
2
24
48
$46.03
$2,209.44
1 Uldl LdUUF
29% Labor Markup
Total Labor & Markup
Pnuinmant
$11,187.36
$3,244.33
$14,431.69
Unit No.
Equipment Description
Hours Worked
Rates
Total
Regular
Standby
Regular
Standby
Regular
Standby
K-73
KOMATSU 120-6 EXCAVATOR
24
$56.17
$1,348.08
K-75
Bomag Roller Vib. 3-5 ton
12
$23.89
$286.68
K-26
Cat Wheel Loader 950-A
24
$55.60
$1,334.40
K-48
Imack Dump Truck
24
$58.58
$1,405.92
K-48 PT
Pony Trailer
24
$12.72
$305.28
K-101
Roscoe RB 38 Sweeper
3
$32.85
$98.55
K-70
Chevy Flatbed 1.5 TN
24
$31.60
$758.40
K-99
Chevy 1500 SILVERADO
24
$20.82
$499.68
1Uidi cquipmenc
21% Equipment Markup
Total Equipment & Markup
Total Change Order Labor & Equipment
$6,036.99
$1,267.77
$7,304.76
$21,736.45