CR 92-75 Mainstreet Storm Sewer
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April 2, 1992 o P K \ ~ Council Report: 92-75
Change Order
Mainstreet storm Sewer
Proposed Action.
Staff recommends adoption of the following motion: Move
that Council authorize Change Order No.4. Project 90-04B.
as it concerns the Mainstreet Reconstruction Project.
Overview.
Council at March 17 meeting approved plans for relocation of
storm sewer pipe onto Mainstreet between 11th and 13th
Avenues and ordered bids to be taken for the purchase of
pipe and structures. Bids were opened March 30 and award of
that contract is part of another report to Council. At the
March 17 meeting staff recommended approaching Council with
a change order that addressed the cost of pipe and structure
installation. This report discusses that change order
request.
Primary Issues to Consider.
0 What are the costs?
C.S. McCrossan has provided a quote for installation
services at $110,177.50. As is mentioned in the
attached RLK letter of March 26, this quote is
reasonably close to the estimate of $104,500 provided
in the last Council report of March 17. Together with
the low bid of $76,353 for pipe material, and $12,125
for engineering, the total project cost is $198,655.
This exceeds the original total project estimate by
approximately $6,000. TIF funds are available as a
source of funding.
0 What is the justification for this change order?
Staff in its last report cited several benefits from a
storm sewer relocation, among them ease of maintenance
by placing the pipe in a roadway, reduction of
intersection ponding on Mainstreet, and enhancement of
development potential for the Suburban Chevrolet site.
Staff recommends authorization of Change Order No. 4,
90-04B.
Supportinq Information.
0 Letter of recommendation from RLK Associates
0 C.S. McCrossan change order quote
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Jafues Gessele
Engineering Superintendent
,
922 Mainstreet
Hopkins, Mn.
55343
(()12) 933-0972
fax: (612) 933-1153
March 26, 1992
Mr. Lee Gustafson
City of Hopkins
1010 First street South
Hopkins, MN 55343
Dear Lee,
Attached please find a copy of the bid quote from C.S.
. McCrossan tor the installatioI1.ofthe 60" storm sewer on
Mainstreet.
Chuck Poppler and I have both reviewed this quote. The cost
is reasonably close to the engineer estimate prepared for
this work. Due to this fact, we recommend that the City
accept this quote and issue a change order to C.S. McCrossan
for the work.
If you have any questions or concerns please feel free to
give me a call.
Sincerely,
-....-..
· Civil Engineering · Transportation · Infrastructure Redevelopment
· Landscape Architecture · Construction Management
03/26/92 13:41 C. S. MCCROSSFih, I NC. 003
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Hopkins Malnstraet Improvements
Change Ord9f Requast by City of HopklnsIRLK AssocIates
00- Storm SowQr Relocation
Bid Date 3126192
I Item 11 t Dosor1ptton I Quantity I Unn 1 Bid PrIcQ f Extension f
1 Remove stonn S9W9r (all slz.es) 206 It 24.00 4,944.00
21nstaff 12" RCP (0'-8' Depth) 275 If 11.35 3,121.25
3 Install 15" RCP (O'-S' Depth) 13 tf 20.00 260.00
4 tnstall24. RCP (10'-12' Depth) 93 rr 18.90 1,757.70
51nstalf 24" RCP (12'-14' D9pth) 89 tf 21.25 1,891.25
6 Install W RCP (12'-14' Depth) 377 rr 62.30 23,481.10
7 Install 60" RCP (14'.164 Depth) 278 tf 75.40 20,961.20
8 Install 6011 RCP (16'-18' QQpth) 110 If 92.50 10,175.00
91nslall TQQ Manhole 2ea 1,700.00 3,500.00
10 Install Catch Basin 6ea 835.00 5,010.00
11 Bulkhead Exist. 60"' RCP 1ea 450.00 450.00
12 Bulkhead Exlsl16- RCP 1 sa 105.00 105.00
13 Connect to exist CB or MH 3ea 350.00 1,050.00
14 Connect to Exist Storm Sewer 1~ 150.00 150.00
15 Install Miter Bend 298 5,125.00 10,250.00
161nslaU Standard Manhole (48" 018.) 1Qa 025.00 925.00
17 FiJI Invert of exist. manhola 1sa 150.00 150.00
18 Sawcut bituminous pav9rJJent 300 If 2.90 870.00
19 Remove/replace bituminous street - 215 'Sf 25.00 5,375.00
20 Removalreplace concrete driveway 25sy 35.00 875.00
21 Remove/replace concrete sldawalk 50 sf 4.50 225.00
22 SOd with 4" topSOil 150 sy 3.50 525.00
23 ConstrucUon Joint for 60" RCP 1ea 3,200.00 3,200.00
24 Additional excavation at san. sewer s$rvices 6aa 1,745.00 10,470.00
25 Wat9r servlc9 Insulal10n @ 6()M 88., 411 thick 200 Sf 2.26 450.00
Total 110,171.50
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a. This pr1ce assumes that the miter beOds are suppiled in two pieces.
b. Tra1Tlc Is assumed to be detoured otrof 11th through 13th Aves. for the duration
of sanitary through storm sewer Installation. Intersections Will ba opanOd as soon
as poSSible to allOW for north/south tramc~
c. Assufl"leS: tfl~ use of excavated trench material for pipe baokflll.