CR 01-174 Change Order and Additional Design and Construction Service Fees
C\TY OF
m
October 11, 2001
HOPKINS
Council Report 2001-174
Approve Change Order and Additional Design and Construction Services Fees -
2001 Street and Utility Improvements - City Project 00-10
Proposed Action
Staff recommends adoption of the following motion: Move that Council approve
ChanaeOrder No. 2 and additional desian and construction service fees not to
exceed $46.838.61 as they relate to the 2001 Street and Utility Improvements,
City Proiect 00-10.
Overview
Construction of the 2001 Street and Utility Improvements is nearly complete and
only punchlist items remain before the project is fully completed. Unfortunately,
many unknown conflicts, problems, and issues have surfaced during construction
of this improvement project. These unknowns have necessitated changes to the
plans and added costs to the project. Change Order NO.2 represents the added
project costs of the necessary changes. Staff is now requesting approval of
Change Order NO.2 in the amount of $62,226.97. During the final design stages
of the project, additional areas (Farmdale Lane Sanitary, 8th Avenue Streetscape,
and 11th Avenue Trail Easements) were added to the project and formal approval
of the subsequent design work for these areas is requested in the amount of
$18,896. The addition of these areas, as well as the expansion of the
construction costs through the final design stage, lead to a much longer
construction project (21 weeks) than originally estimated (14 weeks) in the
feasibility study. Approval is also requested for additional construction
observation services not to exceed $27,942.61 as necessitated by the
lengthened construction period.
Primary Issues to Consider
. Nature, Cost and History of Change Order Items
. Project Budget
. Staff Recommendation
Supportina Information
. Change Order NO.2
2t:z. &--
Steven G. Bot
Assistant City Engineer
Financial Impact: $ 109.065.58
Related Documents (CIP, ERP, etc.):
Notes:
Budgeted: Y/N::L Source: MSA Fund. Uti!. PIR. SA
Council Report 2001-174
Page 2
Analvsis:
. Nature and Cost of Change Order Items
Historv - Chanqe Order NO.1
Change Order No. 1 ($17,192) was necessitated by the discovery
of extremely wet, porous, and organic soils near the south end of
11th Avenue South. This change order included the necessary
installation of stabilizing rock and draintile and was approved by
staff as it is under 50/0 of the contract amount that is allowed for
staff discretion.
Utilitv Conflicts
Unknown utility conflicts constitute a majority of this change order.
These underground conflicts arose while attempting to install the
storm sewer improvements on the project. The project area is
cluttered with underground utilities (electric, phone, cable, water,
sewer, etc) and installation of the underground storm sewer system
proved to be extremely difficult in this area. While these
improvements will do wonders for maximizing flood reduction
potential in the area and will greatly improve the previously
inadequate area drainage and water treatment, they were difficult to
install and changes to both the storm sewer design and the existing
watermain had to be made to avoid the conflicts. In total, the storm
sewer revisions account for $41,545.92 of Change Order NO.2.
These additional storm sewer costs are proposed to come out of
the storm water utility fund.
Root Conflicts
On 16th Avenue North, many substantial tree roots had to be cut in
order to install the new curb along that street. A special root cutting
machine was used in order to minimize the damage to the trees
and give them the best chance for survival. The cost of this
unforeseen root cutting was $1,350 and is included with Change
Order NO.2.
Other Conflicts
Due to grade changes associated with the new curbing on the
project, water service curb boxes and fire hydrant elevations had to
be adjusted. These changes account for $3,500.75 in Change
Order NO.2. The addition of new curb along 11 th Avenue South at
Smetana Road eliminated the need for the edging bollards that
were in place. The cost for the removal and proper disposal of
these creosote bollards was $500.04.
Council Report 2001-174
Page 3
Electrical Liahtina Conduit
The electrical lighting changes in Change Order No. 2 ($15,330.26~
are for the addition of wiring conduit along the west side of 11t
Avenue. The project contractor damaged the electrical wiring in
this area to a point where the contractOr was responsible for its
replacement. Since the wire was being replaced anyway, it made
sense for the City to have the new wiring placed in conduit and
upgraded to our current standards that greatly improve the
performance and maintenance of the City's lighting system.
. Project Budget
The budget remains at $1,470,491.94 as reported on May 11,
2001, at time of contract award. The change order amount is within
the 100/0 project contingency reserved for necessary and unknown
additions to the contract.
. Staff Recommendation
Staff has examined Change Order No. 2 as recommended by the
City's consulting engineer, Bolton and Menk, Inc., and recommends
approval due to the unknown conflicts, problems, and issues for
which this change order is based. Staff further recommends
approval of additional design and construction service fees based
on the expansion of the project scope during the final design
process.
MNIDOT TP-02134-03 (5/88)
STATE OF MINNESOTA DEPARTMENT OF TRANSPORTATION
Supp. to Contract No. T11.20354
Sheet -L of ~
SUPPLEMENTAL AGREEMENT NO.
2
tractor :
Federal Project:
State Project No:
132-346-16 (l1lh Avenue South)
132-353-05 (8th Avenue)
Midwest Asphalt Corporation
NIA
Address:
Location:
SU. A venue from First Street North to Excelsior Boulevard (CSAH 3)
11'h A venue from South Landmark Trail to Smetana Road
14th Avenue North from South Service Drive to Fourth Street North
16u, Avenue North from First Street North to Second Street North
P.O. Pox 5477
Hopkins, MN 55343
Pro. No.
I F.Y. I Account I.D.
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DeptlDiv.
I Sequence No.
I
I 01
I
TRANSACTION: A44 (
A46 (
) Dated
Suffix Object I Vendor
I
I
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I C.CD.3 I C.CDA
I I
Number Entered by
Number
I Type V I Amount
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I C.CD.5
Purchase Terms I Asset No.
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C. CD. 1
C.CD.2
TYPE OF
A40 (
A41(
A45 (
Dated
Entered by
This contract is amended as follows:
WHEREAS, two existing fire hydrants along 14'h Avenue North and 16u1 Avenue North required extensions to match the final boulevard grades,
AND WHEREAS, the initial excavation for the proposed Stormceptor structure at Westbrooke Way and Uti. Avenue South revealed private utility conflicts which required a
redesign of the storm sewer system and resulted in the contractor spending additional crew time excavating and backm.1ing at the original structure location,
_WHEREAS,. the redesign of the storm sewer system at Westbrooke Way and 11tl. A venue South required additional equipment and time (including a larger excavator, a
box, and additional excavating) by the contractor to perform the work,
AND WHEREAS, the redesign of the storm sewer system at Westbrooke Way and 11th A venue South allowed the elimination of 24" round concrete pipe from the plan and
required the construction of 29" span concrete arch pipe and a geotextile fabric,
AND WHEREAS, the redesign of the storm sewer system at Westbrooke Way and 11th Avenue South required the lowering of the existing watermain at two locations, one of
which required the cutting of support piling,
AND WHEREAS, an existing 2" water service needed to be extended in conjunction with the watermain lowering,
AND WHEREAS, existing tree roots along 16th Avenue North needed to be cut and removed to facilitate new curb construction,
AND WHEREAS, the discovery of soft soils within some of the utility trenches required the use of 1-1/2" clear aggregate borrow for trench stability purposes,
AND WHEREAS, the contractor is requested to remove and dispose of the existing treated wood guard posts originally located at the intersection of 11Ut Avenue South and
Smetana Road,
AND WHEREAS, the contractor is requested to remove the existing street light wiring along the west side of 11th Avenue South between Smetana Road and Westbrooke
Way and to replace it with new wiring in conduit, similar to that which was planned along the east side of 11th Avenue South,
MNIDOT TP-02134-03 (5/88)
STATE OF MINNESOTA DEPARTMENT OF TRANSPORTATION
Supp. to Contract No. Tl1.20354
Sheet ~ of --1::...
THEREFORE BE IT MUTUALLY AGREED, the Contractor shall complete the work items listed below at the agreed upon unit prices,
-
AND THEREFORE BE IT MUTUALLY AGREED, the Contract Amount is adjusted as follows:
1. Original Contract
2. Additions per Supplemental Agreement No.1
ITEM NO. ITEM NAME UNIT QUANTITY
2101.606 ROOT CUTTING EACH 2
2103.601 EXPLORATORY EXCAVATION LUMP SUM 1
2103.601 SPECIAL EXCA V A TION LUMP SUM 1
2104.509 REMOVE GUARD POST EACH 9
2105.543 1.5" CLEAR AGGREGATE BORROW TON 400
2503.521 29" SPAN RC PIPE-ARCH SEWER CL IIA LIN FT 165
2503.541 24" RC PIPE SEWER CL III DESIGN 3006 LIN FT -156
2504.602 ADJUST CURB BOX EACH 28
2504.602 LOWER WATERMAIN EACH 2
2504.602 8" x 2" TAPPING SADDLE EACH 1
2504.602 2" TYPE K COPPER PIPE LIN FT 8
2504.603 HYDRANT EXTENSION UN FT 2.5
2511.601 GEOTEXTILE FABRIC FOR TRENCH SQYD 100
2545.601 EX. STREET LIGHT REWIRING (SPECIAL) LUMP SUM 1
3.
Total Contract Amount Due to Supplemental Agreement #2:
ROVED:
Commissioner of
Administration
APPROVED
Commissioner of
Finance
Original Contract
By
Approved as to form and
execution
By
Dated
Date
Assistant Attorney General
Original to State Auditor - Copy to Agency
$1,089,253.29
$ 17,192.00
UNIT PRICE
AMOUNT
$675.00
$3,159.42
$14,400.38
$55.56
$19.50
$57.14
$44.10
$80.00
$6,070.88
$86.34
$14.19
$504.30
$12.96
$15,330.26
$ 1,350.00
$ 3,159.42
$14,400.38
$ 500.04
$ 7,800.00
$ 9,428.10
($6,879.60)
$ 2,240.00
$12,141.76
$ 86.34
$ 113.52
$ 1,260.75
$ 1,296.00
$15,330.26
TOTAL
$ 62,226.97
$1,168,672.26
Dated 9/2.' (0/
Dated 9 /ulo,
Dated 9 lu/o I
I
Dated
'1<<~~/4 ~
Project Manager
Dated
District Engineer
Dated
Agency Head
3195