11-109.00 Spokane Rock Products: Indiana Ave ExtensionSpokane
Valley
DEPARTMENT OF Pl IRI IC WnRKS
CHANGE ORDER TO CONSTRUCTION CONTRACT NO: 11 -012
PROJECT: Indiana Avenue Extension Project CONTRACT DATE: 4/19/2011
CONTRACTOR: Spokane Rock Products, Inc CHANGE ORDER NO: 10
CAPITAL IMPROVEMENT PROJECT NO: 0112
BID NO.: 11 -012
DESCRIPTION OF (;HANGtS
This Change Order pays for revised driveway grading, driveway forming and installation of a landscape wall at 1606 N. Flora Rd.
See attached Change Order 10 plan and specifications and Contract Clarification 16 exhibit.
Item No
Description
CO 10 - 1
MODULAR BLOCK RETAINING WALL
CO 10 - 2
DRIVEWAY GRADING AND FORMWORK
CO 10 - 3
DRIVEWAY & WALL SURVEYING
Unit Quanti Unit Price
SF 170 $40.00
LS 1 $380.90
LS 1 $250.00
Total Amount of this Change Order( Incl. Tax):
SUBSTANTIAL COMPLETION
Total
$6,800.00
$380.90
250.00
$7,430.90
Original Date:
7/12/2011
Prior to this Change Order:
7/15/2011
Including this Change Order:
7118/2011
Original Working Days:
50
Working Days Added by this CO:
2
Working Days including this CO:
65
THESE CHANGES RESULT IN THE FOLLOWING ADJUSTMENTS OF TOTAL CONTRACT PRICE:
ORIGINAL TOTAL CONTRACT AMOUNT $ 1,049,282.20
......................................................................................................................... ............................... ..
TOTAL PRIOR CONTRACT CHANGE ORDER AMOUNT . $ 100,256.69
......................................................................................... ...............................
TOTAL CONTRACT PRICE PRIOR TO THIS CHANGE ORDER $ 1,149,538.89
.......................................... ...............................
NET THIS CHANGE ORDER $ 7,430.90
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOTAL CONTRACT AMOUNT INCLUDING THIS CHANGE ORDER $ 1,156,969.79
CONTRACTOR ACCEPTANCE: DATE:
The contractor hereby accepts this adjustment under the terms of the original contract for all work perfomed.
RECOMMENDED BY: jl/�ry� /'ti1/�1� DATE:
APPROVED BY:
APPROVED BY:
ATTACHMENTS:
n;errir„yrinn
Manager
DATE: 6
DATE: e z!�&
ORIGINALS TO: Contractor, City of Spokane Valley Clerk's Office, PW Project File
COPIES TO: PW Project File RPublic Works /Purchaing /CO (9/26/2007)
1 -05 CONTROL OF WORK
1 -05.4 Measurement
"Driveway & Wall Surveying" shall not be measured.
1 -05.5 Payment
Payment will be made in.accordance with Section 1 -04.1 for:
"Driveway & Wall Surveying ", per lump sum.
The lump sum unit contract price for "Driveway & Wall Surveying ", shall include all costs
for construction staking required for work shown in Change Order 10 and Contract
Clarification 16 including modular wall construction; placing and forming the driveway
and associated sidewalk.
2 -03 ROADWAY EXCAVATION AND EMBANKMENT
2 -03.4 Measurement
"Driveway Grading and Formwork" shall not be measured.
8 -24.5 Payment
Payment will be made in accordance with Section 1 -04.1 for:
"Driveway Grading and Formwork ", per lump sum.
The lump sum unit contract price for Driveway Grading and Formwork, shall include all
costs for loading, haul and disposal of all driveway excavation in excess of bid grades;
furnishing, placing and compacting all embankment in excess of bid grades,; and all
additional cost in excess of the unit price for placing and forming the driveway and
associated sidewalk.
8 -24 SEGMENTAL CONCRETE MASONRY RETAINING WALL
8 -24.1 Description
The segmental concrete masonry retaining wall work includes, but is not limited to:
excavation, furnishing and installing leveling pad; furnishing and installing modular block
concrete standard and cap units, furnishing and installing crushed surfacing top course
backfill; in accordance with the Plans and Specifications, or as designated by the
Engineer.
Indiana Avenue Extension Project CO 10 Specifications
8 -24.2 Materials
Modular Block Units shall be Roman Pisa Stone by Mutual Materials (1- 888 - 688 -8250)
or approved equal and shall have the following nominal dimensions: Height 6 ", Face
Width 8 ", Depth 12 ". Standard Cap Units shall have the following nominal dimensions:
Height 3 ", Face Width 8 ", Depth (transverse to face) 12 ". The modular block units shall
have a tongue and grove connection system and shall be gray or charcoal tone in color.
All units used shall be homogenous color and finish.
Base leveling pad material and backfill shall conform to Section 9- 03.9(3) crushed
surfacing base course (CSBC).
8 -24.3 Construction Requirements
8- 24.3(1) Quality Assurance
The completed modular block wall shall meet the following tolerances:
1. Wall batter shall be %" per course.
2. The exterior slope plane and grade in the finished surface of the wall shall
be within 0.05' in 10 feet of length.
8- 24.3(2) Excavation
The Contractor shall stake the location and elevation of the wall. Prior to excavation, the
contractor shall verify with the Engineer final grades and elevations so that the
completed modular block retaining wall shall fit proposed final grades. Excavation shall
be to the verified lines and grades.
8- 24.3(3) Leveling Pad
The leveling base pad shall have a minimum thickness of 6 inches and be compacted to
a minimum of 95% maximum of modified Proctor. The leveling pad shall be prepared to
insure full contact to the base surface of the modular block units.
8- 24.3(4) Modular Block Unit Installation
The first course of segmental concrete units shall be placed on the leveling pad and
checked for alignment and grade. Position vertically adjacent segmental concrete units
as recommended by the Manufacturer. Whole, or cut units shall be erected with running
bond approximately centered on units above and below. Cap units shall be glued to
underlying units with an adhesive recommended by the modular block unit manufacturer.
8- 24.3(5) Modular Block Unit Backfill
Wall backfill placement and compaction shall be completed in 6 inch lifts after each
course is laid. Topsoil shall be placed over the backfill to match the cap rock elevation
as shown on the appropriate section in the plans.
8 -24.4 Measurement
Modular Block Retaining Wall shall be measured by the installed square foot of vertical face.
2
Indiana Avenue Extension Project CO 10 Specifications
8 -24.5 Payment
Payment will be made in accordance with Section 1 -04.1 for:
Modular Block Retaining Wall, per square foot.
The unit contract price for Modular Block Retaining Wall, per square foot shall include
the cost of loading, haul and disposal of all excavation; furnishing and installing leveling
pad and backfill, furnishing and installing modular block units and cap stone adhesive;
placing topsoil and re- grading top of wall slopes.
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Indiana Avenue Extension Project CO 10 Specifications