HomeMy WebLinkAbout5.B.2. Change Order for Shakopee Valley Marketplace Drainage Improvements Porject No. 2009-6DATE: December 7, 2010
INTRODUCTION:
BACKGROUND:
ALTERNATIVES:
CITY OF SHAKOPEE
Memorandum
TO: Mayor & City Council
Mark McNeill, City Administrator
FROM: Bruce Loney, Public Work Director
SUBJECT: Approve Change Order #1 for the Shakopee Valley Marketplace Drainage
Improvement Project (2009 -6)
r 77 , 3 n,
The purpose of this agenda item is to approve change order #1 for the Shakopee Valley
Marketplace Drainage Improvement project. The change order involves the addition of
a stronger erosion control blanket in the ditch bottom and the grouting of riprap at the
thirty -six (36) inch flared end section.
During construction it was decided to upgrade the erosion control blanket being placed
in the ditch bottom as a means to provide added protection against washouts during the
late fall and early spring runoff events. The upgrade, from a category 4 to a category 7
blanket, is deemed necessary as the late construction start did not allow for the
establishment of turf. The stronger blanket in the ditch bottom will further protect the
topsoil and seed until well after it has taken root and can withstand runoff on its own.
The grouting of the riprap at the end of the flared end section was added to eliminate
future maintenance concerns caused by the runoff shifting the riprap over time.
The total amount of change order #1 is $5,953.41. Please see the attached breakdown
received from the contractor and reviewed by engineering.
1. Approve a motion accepting change order #1 in the amount of $5,953.41 for the
Shakopee Valley Marketplace Drainage Improvement project.
P'E'A
2. Do not accept change order #1 in the amount of $5,953.41 for the Shakopee
Valley Marketplace Drainage Improvement project.
3. Table for additional information.
RECOMMENDATION:
Staff recommends Alternative No. 1.
ACTION REQUESTED:
Approve a motion accepting change order #1 in the amount of $5,953.41 for the
Shakopee Valley Marketplace Drainage Improvement project.
BL /pmp
Bruce Loney, P
Public Works Director
ITEM
No
DESCRIPTION OF WORK
SCHEDULED
QUANTITY
UNIT
SCHEDULED
UNIT PRICE
SCHEDULED
TOTAL PRICE
WORK COMPLETED
Total Completed to Date
%
Complete
Previous Requests
This Request
Qeaetlty Amount
Quantity 1 Amount
Quantity I Amount
10
MOBILIZATION
1
LS
$2,000.00
$2,000.00
a
$0.00
I
$2,000
1
$2,000.00
20
COMMON EXCAVATION
1800
CY
$4 .00
$7,200.00
0
$0.00
1800
$7,200.00
1800
$7,200.00
100%
30
POND EXCAVATION
500
CY
$5 50
82.750.00
a
$0.00
500
$2,750.00
500
$2,750.00
100%
40
SALVAGE & REINSTALL PIPE APRON
3
EA
$400.00
$ 1.200.00
0
$0.00
3
$1.200.00
3
$1.200.00
100%
50
27" PIPE RCP CL III
8
LF
$47 00
$376.00
0
50.00
8
$376.00
8
$376.00
100%
60
36" PIPE RCP CL III
40
LF
$98.00
$3,920.00
0
$0.00
40
$3,920.00
40
$3.920.00
100%
70
24" PIPE HOPE
48
LF
$38.00
$1,824.00
0
50.00
48
$1,824.00
48
$1,824.00
100%
so
CONST DRAINAGE STRUCTURE DES 48 -4020
1
EA
$2.800.00
$2,800.00
0
$0.00
1
$2,800.00
I
$2,800.00
100%
90
CASTING ASSEMBLY
1
EA
$500.00
$500.00
0
$0.00
1
$500.00
1
$500.00
100%
100
TRASH GUARD FOR 24" APRON
1
EA
$700.00
$700.00
0
$0.00
1
$700.00
1
$700.00
100%
110
RANDOM RIP RAP CL IV FIELDSTONE
130
CY
$75.00
$9,750.00
0
$0.00
130
$9,750.00
130
$9,750.00
100%
120
GEOTEXTILE FABRIC TYPE IV
495
SY
$2.50
$1,237.50
0
$0.00
495
81.237.50
495
$1,237.50
100%
130
TOPSOIL BORROW
250
CY
$13.50
$3,375.00
0
$0.00
48
$648.00
48
$648.00
19%
140
SILT FENCE
175
LF
$1.65
$288.75
0
$0.00
168
$277.20
168
$277.20
96%
150
FILTER LOG TYPE WOOD FIBER BIOROLL
220
LF
$3.00
$660.00
0
$0.00
200
$600.00
200
$600.00
91%
160
SEED MIX 328
115
LB
$6.50
$747.50
0
$0.00
135
$877.50
135
$877.50
117%
170
FERTILIZER TYPE I
350
LB
$0.50
$175.00
0
$0.00
350
$175.00
350
$175.00
100%
180
MULCH MATERIAL TYPE III
1
TON
$155.00
$155.00
0
$0.00
1
$155.00
1
$155.00
100%
190
DISK ANCHORING
0.5
AC
$500.00
$250.00
0
50.00
0.5
$250.00
0.5
$250.00
100%
200
EROSION CONTROL BLANKET CAT IV
3660
SY
$1.25
$4,575.00
0
$0.00
4000
$5,000.00
4000
$5,000.00
109%
CHARGE ORDERS
Erosion Control 'Minkct Cat 7
1000
SY
$5. to
$5,100.00
0
$0.00
1000
$5,100.00
1000
$5,100.00
0%
Concrete Grout
I
LS
$853.41
$853.41
a
$0.00
1
$853.41
1
$853.41
100%
$0.00
$0.00
0
$0.00
0
$0.00
0
$0.00
MDIV /0l
$0.00
$0.00
0
$0.00
0
$0.00
0
$0.00
MDIV/01
$0.00
$0.00
0
80.00
0
$0.00
0
$0.00
II DIV /Of
$0.00
$0.00
0
$0.00
0
$0.00
0
511 on
•DIV/01
City of Shakopee, Valley Marketplace Drainage Imp
MN Dirt Works, Inc.
BASE PROJECT TOTAL
CHANGE ORDER TOTAL
GRAND TOTAL
$44,483.75
$5,953.41
$50,437.16
$0.00
$48,193.61
REQUEST NUMBER:
FOR PERIOD ENDING:
Previous Retalnage: 0% $
This Retalnage: 0% $
Total Retalnage:
Previously Paid Amount:
$48,193.61 108% I
$0.00
$0.00
Amount Due: 848,193.611
11/16(2010
Change Order Number: 1
Project #: 2009 -6
Date: November 23, 2010
Completion Date: No Change
Contractor: Minnesota Dirtworks, Inc.
By:
Date:
APPROVED AND RECOMMENDED:
CHANGE ORDER
Project: Shakopee Valley Marketplace Drainage Improvements
Original Contract Amount $ 44,483.75
Change Order(s) Number 1 thru Number $ 5,983.41
Total Funds Encumbered Prior to Change Order $ 44,483.75
Description of Work to be Added:
• Grouting of riprap at plunge pool #2 = $853.41
• Addition of category VII erosion control blanket = $5,100.00
The amount of the contract shall be increased by $ 5,983.41
The number of calendar days for completion shall be (increased /decreased) by: N/A
Original Contract Amount $ 44,483.75
Change Order(s) Number 1 thru Number $ 5,983.41
Total Funds Encumbered $ 50,467.16
The undersigned Contractor hereby agrees to perform the work specified in this Change
Order in accordance with the specifications, conditions and prices set forth.
City Engineer Date