3 Century Blvd. ImprovementsCITYOF
CHANHASSEN
90 Cio, Center Drive, PO Bo.,: 147
Cha,hasse,, Mi,,esota 55317
&o,e 61Z93Z 1900
Ge, era/£~zv 612937.5739
Engineering tax' 612. 937. 9152
:ub/ic SafeO, £ax 612.934.2524
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MEMORANDUM
TO:
Teresa J. Burgess, Public Works Director/City Engineer
FROM:
DATE:
Matt Saam, Project Engineer
March 7, 2001
SUB J:
Public Hearing and Authorize Preparation of Plans and Specifications for
Century Boulevard Street & Utility Improvements
Project No. 97-1C
On February 12, 2001, the City Council received the feasibility study and called for a
public hearing for the above-referenced project. Advertisement and mailings were done
to notify surrounding property owners of the public hearing.
Staff is recommending that the City Council approve the feasibility report and authorize
the preparation of plans and specifications for the project. Consultant services for the
design will be procured through the RFP process.
The feasibility study was prepared in response to a petition received from Steiner
Development Corporation, the sole property owner along the proposed extension of
Century Boulevard. The attached feasibility study provides further details concerning the
project.
Enclosure: Feasibility Study
c: Fred Richter, Steiner Development Corporation
Phil Gravel, Bonestroo, Rosene, Anderlik & Associates
S
g:\eng\public\97-1 c~staff report-3-12.doc
be C/n, of Chanha.c,e,. A growhw commun#v w/th c/ea, lakes, atta//n, schooh, a cha,n/n.~ downtown, t/.,ivhw businesses, and beautihd oarks. A creat o/ace to/i~e, work. and olay.
Feasibility Repo.rt for
Century Boulevard
City Project 97-1C
Street and Utility Improvements
Chanhassen, Minnesota
February 2001
File No. 393-01-116
Bonestroo
Rosene
Anderlil{ &
Associates
Engineers & Architects
February 12, 2001
Bonestroo, Rosene, Anderlik and Associates, Inc. is an Affirmative Action/Equal Opportunity
Employer and Employee Owned
Principals: Otto G. Bonestroo, P.E. · Marvin L. Sorvala, P.E. · Glenn R. Cook, P.E.
Robert G. Schunicht, P.E. · Jerry A, Bourdon, RE,
Senior Consultants: Robert W. Rosene, P.E. · Joseph C. Anderlik. P.E. · Richard E. Turner, RE. ·
Susan M. Eberlin, C,P.A.
Associate Principals: Howard A. Sanford, P.E. · Keith A. Gordon, RE. · Robert R, Pfefferle, P.E. ·
Richard W. Foster, P.E, · David O. Loskota, RE. · Robert C. Russek, A.LA.
Michael T. Rautmann, RE. · Ted K.Field, RE. · Kenneth R Anderson, RE. · Mark R. Rolfs, RE. ·
David A. 8onestroo, M.B.A. · Sidney P. Wiiliamson, P.E., L.S. · Agnes M. Ring, M,B.A. · Allan Rick Schmidt,
Offices: St. Paul, St. Cloud, Rochester and Willmar, MN · Milwaukee,
L~'ebsite: www. bonestroo.com
Honorable Mayor and City Council
City of Chanhassen
690 City Center Drive, P.O. Box 147
Chanhassen, MN 55317-0147
Re'
Feasibility Report for Century Boulevard
City Project No. 97-1C
Our File No. 393-01-116
Dear Mayor and Council:
Transmitted herewith is our report on the Proposed street and utility improvements for Century
Boulevard north of Coulter Boulevard and south of Highway 5. This project is the final phase in a
multi-phased project for the Arboretum Business Park area.
The report presents and discusses the proposed street and Utility improvements and includes a cost
estimate and preliminary assessment roll. An executive summary is included at the beginning of the
report.
We will be pleased to meet with the Council and. other interested parties at a mutually convenient
time to discuss this report. Thank you for the opportunity to assist the City with this project.
Respectfully submitted,
BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC.
Phil Gravel
LPG: cmi
I hereby certify that this plan, specification, or report
was prepared by me or under my direct supervision
and that I am a duly Registered Professional Engineer
under the laws of the State of Minnesota.
L. Phillip Gravel, III, P.E.
Date: February 12, 2000 Reg. No. 19864
Table of Contents
Transmittal Letter ................................................................................................................ 1
Table of Contents ................................................................................................................ 2
I. Introduction/Summary ................................................................................................. 3
Figure I - Location Plan ....................................................................................... 5
II. Proposed Improvements ............................................................................................... 6
III. Cost Analysis / Financing ....................................................................... : ....... · ............. 7
Table 1 - Project Costs ....................................................................... . ................... 7
Table 2 - Proposed Assessment Rates ........................................ ...' ............... - ....... 8
IV.
Table 3 - Revenue Summary .................................................. : ............................ 9
Project Schedule .......................................................................................................... 10
Vo
VI.
Easements and Permits ..................................................................................... i ......... 11
Summary and Recommendations ............................................................................... 12
Appendix A - Preliminary Cost Estimate
Appendix B - Preliminary Assessment Roll
Figure 2 - Sanitary Sewer and Water Main
Figure 3 - Street and Storm Sewer
Figure 4 - Area to be Assessed
Feasibility Report for Project 97-! C, Century Boulevard Page 2
I. Introduction/Summary
This report presents information concerning the extension of Century Boulevard from 500-feet
north of Coulter Boulevard to Highway 5. The project is the last in a multi-phased project to
construct municipal infrastructure for the Arboretum Business Park area. This project is
intended to be timed with the pending improvements to Highway 5.
Municipal improvements proposed herein include the construction of a sanitary sewer, trunk
water main, storm sewer, street, and trail. The proposed trunk water main is consistent with the
comprehensive water works plan and previous projects in the area. The proposed street
alignment has been modified from the original preliminary plan to facilitate the current plans by
MnDOT: Additional right-of-way will be required for Century Boulevard. The additional fight-
of-way should be acquired as part of the current platting process for Arboretum Business Park.
The costs of the proposed improvements are detailed-in Appendix A. Cost allocation and a cost
summary are presented in the Cost Analysis section. Financing for the project will come from
property assessments, the water fund, the storm water fund, and Possibly Municipal State Aid. A
preliminary assessment roll is included as Appendix B.
This report is the result of a petition from the affected property owner (Steiner Development).
The City Council authorized preparation of a report on January 8,2001. The report examines the
feasibility of completing municipal improvements in the project area.
Assessments proposed in this report are consistent with previous feasibility reports for the area,
City policy, and the Comprehensive Sewer and Water Plans. The proposed project assessment
area consists of two lots in the Arboretum Business Park and is shown on Figure 4. The
proposed assessments are based on the preliminary cost estimates and may be revised at the time
of the final assessment hearing based on actual costs, development ageements, and final
development plans.
Feasibility Report for Project 97-1C, Century Boulevard Page 3
·
'~"--CENTER
LOCATION PLAN
CHANHASSEN, MINNESOTA
CENTURY BOULEVARD - PROJECT
39501116FIG1.DWO FEB 2001
FIGURE
NO. 97-1C
393-01-116
1Bone_ stroo
Rosene
~Z~ Anderlik &
~ Associates
En.:]ineem L~ Architects
II. Proposed Improvements
Sanitary Sewer
Sanitary sewer will be extended northward in Century Boulevard. Stubs xvill be placed to service
the property on the east and west side of Century Boulevard. Sanitary sewer will not be
extended across Highway 5. The proposed sanitary sewer is shown on Figure N6.2.
Sanitary sewer flow from the project area flows eastward through a sewer in Coulter Boulevard
and discharges into Lift Station No. 26 on Galpin Boulevard (near the. cemetery). From Lift
Station No. 26 the flow goes to Lift Station No. 24 on Lyman BOulevard. From Lift Station No.
24 the flow goes through the Lake Ann and Lotus Lake Sewer Districts to the'eastern border of
Chanhassen and ultimately to the MCES Blue Lake wastewater treatment facility.
Water Main
Water main improvements proposed herein are consistent with the City's Water Supply and
Distribution Plan and are shown on Figure 2. A 20-inch diameter trunk main will be constructed
on the west side of Century Boulevard. This main will connect to an existing main on the south
and to a proposed main on the north end being constructed as part of the Highway 5 project.
Water main stubs will be provided to the adjacent developments where necessary. Fire hydrants
will be included with the adjacent developments to provide adequate fire coverage. Fire
Hydrants will be installed in accordance with requirements from the City Fire Marshall.
Storm Sewer
The proposed storm sewer consists of two independent systems. One system will convey
drainage from ponding being constructed under the Highway 5 project. The other system will
convey drainage from Century Boulevard and Arboretum Business Park.
Feasibility Report for Project 97-1C, Century Botdevard Page 5
The storm sewer to serve the Highway 5 project will include extending a storm sewer from
Highway 5 along the west side of Century, then east across Century, and into an existing low
area on the east side of Century. The flow in this storm sewer will be treated pond effluent.
The storm sewer to serve Century Boulevard and the business park will include extending a 36-
inch sewer northward along the west edge of the road. A manhole Will be placed for the business
park storm sewer to tie into. Catch basins will be installed on Century Boulevard to collect street
drainage. Discharge from this storm sewer will flow into the existing Century Boulevard storm
sewer and into previously constructed ponding.
Bituminous Trail
Bituminous trail is proposed on the east side of the road. Note that the trail will be extended
further south than the road construction (all the way to the Coulter Boulevard intersection).
Street
Street improvements include connecting to the existing 52-foot wide Century Boulevard
approximately 500-feet north of Coulter Boulevard. The road width will widen to the north in
order to match the proposed road stub at Highway 5 being constructed under the MnDOT
project. The proposed work will include a concrete median to match the MnDOT layout. The
street section will consist of the typical City of Chanhassen industrial street section.
Street lighting will be extended from the existing Coulter Boulevard intersection northward to
Highway 5. (Note that this includes part of the existing in place road length).
Final design details will have to be worked out as part of the plan and specification preparation
process. Issues to be verified during design include the extent of any necessary removals, the
design of the concrete median, and the location of access points for adjacent properties.
Feasibility Report for Project 97-1 C, Centztry Bozdevard Page 6
III. Cost Analysis / Financing
Cost Estimate
The estimated project cost to complete the street and utility improvements proposed herein are
presented below in Table 1. These costs include legal, administrative, engineering, bonding, and
interest costs estimated to be 28% of the construction costs. The estimated 30% indirect costs
are reviewed at the time of the final assessment hearing. The indirect costs are based on previous
similar projects and includes the following: engineering (18%), geotechnical testing (1.3%),
bonding (1.3%), legal (0.8%), permits (0.5%), and City administration (8.1%). This estimate
does not include easement acquisition costs.
Table 1. Project 97-1C
Estimated Project Cost Summary
(See Appendix A for Detailed Cost Estimate)
Item
Sanitary Sewer
Water Main
Storm Sewer
Street and Trail
Total Cost
$ 18,600
39,900
41,700
335,500
Total $435,700
Assessments
Assessments are proposed to be levied against the benefited properties as shown on Figure 4. A
Preliminary assessment Roll is presented in Appendix B. The proPosed assessments herein are
consistent with City policies and past practice. Assessments under this project have been
checked to reflect previous assessments for the Arboretum Business Park.
Feasibility Report for Project 97-1C, Century Boulevard Page 7
A summary of the proposed Assessment Rates is presented in Table 2 below.
Table 2
Project 97-1C Proposed Assessment Rates
Item
Sanitary Sewer
Water System (12" Lateral Benefit)
Sanitary Sewer (Trunk Hookup Charge)
Water Main (Trunk Hookup Charge)
Storm Sewer
Street and Trail
Rate
100% 0f Cost
$24.00/front foot
Previously Assessed
Previously Assessed
100% of Street Part
100% o f Cost
Assessable equivalent units for sewer and water trunk charges were previously assessed under
projects 97-1A, 97-113-2, and 97-1D. Additional units are to be charged on a parcel by parcel
basis as building permits are applied for.
Assessment Revenue
Table 3 below summarizes the estimated revenue from assessments. The table shows a negative
revenue. The negative balance of $71,180 will be the City's responsibility and should be funded
from the storm sewer and water system funds.
Table 3
Project 97-1C Revenue Summary
Item Estimated Cost Assessments Net Revenue
Sanitary Sewer $18,300 $18,600 (Lateral) 0
Water Main $39,900 $9,120 (Lateral) ($30,780)
Storm Sewer Highway 5 41,700 0 ($41,700)
Street 335,500 335,500 0
TOTAL $435,700 $363,220 ($72,480)
Area to be Included
The area to be assessed for this project is shown on Figure 4 and listed below in the Preliminary
Assessment Roll.
Feasibility Report for Project 97-! C, Century Boulevard Page 8
IV. Project Schedule
The improvements described in this report should be constructed in conjunction with the
proposed developments. The schedule shown below is very preliminary and is subject to
revisions based on the Highway 5 Frontage Road project schedule and the grading for the
development. The schedule is based on completing construction in the summer of 2001. The
project schedule can be modified and/or delayed if the City or adjacent developments request it.
Council Authorize Feasibility Report
Staff Review Draft Feasibility Report
Council Receive Report & Call for Hearing
Public Hearing
Order Preparation of Plans and Specifications
Approve Plans & Specs, Authorize Bids
Open Bids
Award Contract
Begin Construction
Substantial Completion
Assessment Hearing
First Assessment Payments Due
January 8,2001
January 29, 2001
February 12, 2001
February 26, 2001
February 26, 2001
April 9, 2001
May 10, 2001
May 14, 2001
June 4, 2001
September 7, 2001
October 2001
May 2002
Feasibility Report for Project 97-1C, Century Boulevard Page 9
V. Easements and Permits
Easements for proposed construction will be required from the adjacent developer (Steiner
Developmel~t). The necessary easement (fight-of-way) should be acquired as part of the plat
approval process for the Arboretum Business Park 4th Addition plai.
Permits and approvals will be required from the following:
Minnesota Pollution Control Agency
Metropolitan Council Environmental Services
Minnesota Department of Health
Minnesota Department of Natural Resources
Minnesota Department of Transportation
Board of Water and Soil Resources
Watershed District
City of Chanhassen, Wetland Alteration Permit
Preparation of an Environmental Assessment Worksheet (EAW) for the Public Improvements is
not required. The developers may be required to complete an EAW for the development project.
If the developer prepares an EAW, the proposed improvements contained herein should be
included as part of the EAW prepared by the developer.
Feasibility Report for Project 97-! C, Century Boulevard Page 10
VI. Summary and Recommendations
The total estimated cost for this project is $429,000 including both construction and indirect
costs.
Figure 2 of this report shows the proposed sanitary sewer and water main construction. Figure 3
shows the proposed street and storm sewer improvements. Figure 4 shows the area to be
assessed.
The proposed work is necessary, cost effective, and feasible from an engineering standpoint.
The following recommendations are presented for the Chanhassen City Council:
The City should adopt the report as the criteria for installation of the improvements
contained herein.
o
The City should review and adopt the proposed assessment and financing methods
contained herein.
o
A formal public hearing should be held to discuss the proposed improvements and
assessments. All properties that are proposed to be assessed and all properties within
500 feet of the project area will be notified of the public heating.
Feasibility Report for Project 97-1 C, Century Boulevard Page 11
APPENDIX A
PRELIMINARY COST ESTIMATE
CENTURY BOULEVARD, PROJECT 97-1C
FEBRUARY 8, 2001
No,
Item Units Qty
Part 1 - Sanitary Sewer
1 Connect to existing manhole
2 8" PVC sanitary sewer
3 4' diameter sanitary manholes
4 8" plug
5 4' dia. MH depth great than 8 feet
Total Construction
Plus 30% - Legal, Administration & Engineering
Total Part 1 - Sanitary Sewer
Part 2 - Water Main
6 Connect to existing water main
7 20" water main
8 6" water main
9 20" butterfly valve and box
10 6" gate valve and box
11 Hydrant w/marker sign in place
12 Water main fittings
Total Construction
Plus 30% - Legal, Administration & Engineering
Total Part 2 - Water Main
Part 3 - Storm Sewer for Highway 5
13 18" RCP storm sewer, Class 5
14 4' diameter storm MH (Plate 2101)
15 18" RCP flared end section
16 Restoration
17 Class III Riprap, placed at flared end section
Total Construction
Plus 30% - Legal, Administration & Engineering
Total Part 3 - Storm Sewer for Highway 5
EA 1
LF 400
EA 3
EA 3
LF 12
EA 2
LF 310
LF 110
EA 1
EA 2
EA 1
LB 2330
LF 68O
EA 5
EA 1
LS 1
CY 30
Unit Price
$1,370.00
$18.00
$1,450.00
$100.00
$9O.OO
$405.00
$55.OO
$18.00
$3,2OO.OO
$700.00
$1,600.00
$2.00
$30.00
$1,5OO.OO
$1,000.00
$1,7OO.OO
$50.00
Total Price
$1,370.00
$7,2OO.OO
$4.,35O.OO
$300.00
$1 ,O8O.OO
$14,300.00
$4,930.00
$18,6OO.OO
$810.00
$17,050.00
$1 980.00
$3,200.00
$1,400.00
$1 600.OO
$4,660.00
$30,700.0O
$9,2OO .00
$39,900.00
$20,400.00
$7,5OO.OO
$1,000.00
$1 7O0.00
$1 500.00
$32,100.00
$9,600.00
$41 70O.OO
393-01-116 - Appendix A 1
Part 4 - Street
18 Mobilization
19 Traffic control
20 Landscaping
21 Excavation and grading for trail
22 Test rolling
23 Subgrade preparation
24 Select Granular Borrow (CV) (24")
25 Aggregate base, Class 5 (12")
26 Bituminous Wear Course, Type 41 (2")
27 Bituminous Binder Course, Type 41 {2")
28 Bituminous Base Course, Type 31 (3")
29 Prep of bit. surface for wear paving in 2002
30 Bituminous material for tack coat
31 4" Polyethylene drain tile
32 12" RCP storm sewer
33 15" RCP storm sewer
34 18" RCP storm sewer
35 36" RCP storm sewer
36 6' diameter storm manhole (Plate 3102)
37 4' diameter storm CBMH (Plate 3102)
38 2'x3'CB (Plate 3101)
39 6" concrete
40 Concrete curb and gutter
41 Pedestrian curb ramp
42 Lighting unit, Type R3
43 2" NMC Conduit, Sch. 40
44 2" NMC Conduit, Sch. 80
45 #2AWG Wire
46 #6 AWG Wire
47 Spare luminaries and ballast (Plate 5240)
48 Sign panels, Type C
49 4" double solid line, yellow paint
50 1-1/4" rock for entrance mat
51 Protection of catch basin in street
52 Seeding w/mulch & fertilizer and 6" salv. topsoil
53 Sodding, lawn type
54 Silt fence, regular
55 Wood fiber blanket
56 Bituminous Trail
Total Construction
Plus 30% - Legal, Administration & Engineering
Total Part 4 - Street
Total Part 1 - Sanitary Sewer
Total Part 2 - Water Main
Total Part 3 - Storm Sewer for Highway 5
Total Part 4 - Street
393-01-116 - Appendix A
LS
LS
LS
LS
LF
LF
CY
TN
TN
TN
TN
LS
GAL
LF
LF
LF
LF
LF
EA
EA
EA
SF
LF
EA-
EA
LF
LF
LF
LF
EA
SF
LF
TN
EA
AC
SY
LF
SY
SF
1
1
1
1
400
400
2260
2300
350.
350
530
1
200
760
160
195
65
110
1
2
-6
4400
1250
1
10
1050
100
lO0
3200
1
90
160
2OO
8
1
1400
600
1600
7200
$10,185.00
$5,000.00
$25,000.00
$1,500.00
$1.00
$2.OO
$13.00
$9.OO
$33.0O
$32.0O
$31.00
$3,OOO.OO
$1.50
$10.O0
$27.OO
$28.OO
$3O.OO
$6O.OO
$3,000.00
$1,500.O0
$1,200.00
$4.00
$7.50
$3oO.~o
.
$2,200.0O
$5.OO
$10.O0
$2.OO
$1.00
$500.00
$3o.oo
$1.25
$12.oo
$5o.oo
$1,2oo.oo
$2.5o
$2.5o
$2.oo
$1.25
$10,185.00
$5,000.00
$25,000.00
$1,500.00
$4OO.OO
$8OO.OO
$29,380.00
$20,700.00
$11,550.00
$11,200.00
$16,430.00
$3,000.00
$3OO.OO
$7,6OO.O0
$4,32O.OO
$5,46O.OO
$1 95O.OO
$6,6OO.00
$3,000.00
$3,000.00
$7,200.00
$17,600.00
$9,375.00
$3OO.OO
$22,000.00
$5,250.00
SI,000.00
$200.00
$3,2OO.OO
$500,00
$2,700.0O
$2OO.OO
$2,400.00
$4OO.OO
$1,200.00
$3,5OO.OO
$1,500.O0
$3 2OO.OO
$9,000.00
$258 IO0.O0
$77,4OO.OO
$335,5O0.OO
$18,600.00
$39,900.00
$41,700.00
$335,500.00
$435,7OO.O0
APPENDIX B
PRELIMINARY COST ESTIMATE
CENTURY BOULEVARD, PROJECT 97-1C
FEBRUARY 8, 2001
Parcel
Proposed Assessment
Outlot C, Arboretum
Business Park 2nd Addition and
Outlot D Arboretum Business Park
Sanitary Sewer $18,600.00
Water Main 9,120.00
Street 335,500~00
TOTAL $363,220.00
Note: The estimated assessible amount of $363,220 will be assessed to the parcel on the
west side of Century Boulevard (Outlot C, Arboretum Business Park 2nd Addition) and the
parcel on the east side of Century Boulevard (Outlot D, Arboretum Business Park). The
amount will be split between the two parcels on a area basis or on a mutually agreeable
method as determined by the City and the Developer.
393-01-116 - Appendix B
ExIS~NG ROW
PROPOSED J~
UNDOT ROW
UNDER HWY. .5 PROJECT
THIS PROJECT
'v"
PROPOSEO ~ /
20' WATER MAIN '""'""'-------.L_~
/
PROPOSED 8'
SANITARY SE'#ER
20' WM BY MNDOT
%,o.,,-~-fl
!
NECESSARY NEW ROW
~N ^PS ,~TH P,,',T
I
I
0 50
Sca~e in feet
·
·
;
,
. ,
:
, .
SANITARY SEWER AND WATER MAIN
CHANHASSEN, MINNESOTA
CENTURY BOULEVARD -
PROJECT NO.
FIGURE
97-1C
,~ Bonestroo
Rosene
~-~ A'nderlik &
~ Associates
Engineers & Architects
I
~ EXJSDNG ROW---~
PROPOSED
UNDOT
STORM SEW[R
FOR HWY.
(THIS PROdgCT)
20 WM BY MNDOT
~ 12'
I
} ---NECESSARY NEW ROW
IN APB 4.TH PLAT
/-- STORM
I
/
I
/
/
I
!
/
/
!
!
/
t
,
!
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,/ /' /
/, ,! ;
// ,
, //
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;; /
/ ! /
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STREET AND STORM SEWER
CHANHASSEN, MINNESOTA
CENTURY BOULEVARD - PROJECT
NO.
/
/
/
/
/
/
/
/
TRNL AND MIDI-ITS
TO COULTE~ BOULEVARD
FIGURE 5
97-1C
Rosene
Anderlik &
'~ Associates
Engiheers ~ Architects
39301116FIG3.DWG FEB 2001 393-01-116
OUTLOT C
ARBORETUM BUSINESS
PARK 2ND ADDITION
MN. HWY, 5
AREA TO BE -~
ASSESSED
OUTLOT C
ARBORETUM BUSINESS
PARK 2ND ADDITION
~ CENT[R
TllSN,
AREA TO BE ASSESSED
CHANHASSEN, MINNESOTA
CENTURY BOULEVARD - PROJECT
59301116FIG4.DWG FEB 2001
FIGURE
NO. 97-1C
.395-01-116
4
Bunestroo
Rosene
Anderlik &
Associates
Engineers ~ Architects