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System Plan Update.docx
EXECUTIVE SUMMARY
City Council Meeting: April 3, 2018
AGENDA ITEM: Approve Bolton & Menk, Inc. for
Engineering Services for Rosemount
Comprehensive Sanitary Sewer System
Plan Update
AGENDA SECTION:
Consent
PREPARED BY: Brian Erickson, P.E., Director of Public
Works/City Engineer AGENDA NO. 6.o.
ATTACHMENTS: Bolton & Menk, Inc. Proposal APPROVED BY: LJM
RECOMMENDED ACTION: Motion to Approve Bolton & Menk, Inc. Proposal for
Engineering Services for Rosemount Comprehensive Sanitary Sewer System Plan Update
BACKGROUND
The City of Rosemount is currently updating its Comprehensive Plan. As part of that update various
sections of the plan require individual updates. Staff has requested proposal from several firms in the
engineering pool for these updates.
The Comprehensive Sewer System Plan Update proposal from Bolton & Menk, Inc. (BMI) fulfills the
Metropolitan Council’s update requirements, reviews existing sanitary capacity and guides future
improvements and extensions of the system. BMI will include the UMore property, intercommunity flows
and additional future approved development (i.e. Meadow Ridge). The total cost of the update is $22,818.
The current sanitary sewer utility budget has $15,000 for the update to the comprehensive plan. Staff
would recommend that the remaining required funding come from the Sewer Fund’s fund balance.
SUMMARY
Staff is recommending approval of the attached Engineering Services Proposal from Bolton & Menk, Inc.
March 28, 2018
Brian Erickson
Director of Public Works/City Engineer
City of Rosemount
2875 145th Street West
Rosemount, MN 55068
RE: Proposal for Sanitary Sewer System Plan Update
Dear Mr. Erickson:
The City of Rosemount’s Comprehensive Sanitary Sewer System Plan Update will not only fulfill the Metropolitan
Council’s required Comprehensive Plan Updates, but will confirm the City’s framework for current sanitary
system capacity and validate the required capital improvements for system expansion. Our approach will consist
of providing a fresh look at the City’s current sanitary sewer plan, analyzing the existing system capacity,
evaluating future capacity needs and developing a report that identifies project costs and timelines. We believe
you will find outstanding value in our approach to your project for the following reasons:
Comprehensive Planning – An effective plan is not just a technical document, but the foundation for
implementation. We will develop a plan that successfully translates technical analysis into cost-effective
implementation to ensure the sanitary sewer system effectively serves Rosemount residents and business
owners.
Accurate Analysis –An updated hydraulic model, coupled with digital mapping data, will help the City continue
to understand how development, inflow, and infiltration has affected sanitary sewer system capacity. This will
substantiate your sanitary sewer planning tool and validate potential system impacts.
Effective Collaboration – Bolton & Menk will serve as an extension of your staff. We will work closely with the
City’s experts to understand current system deficiencies, historic sewer issues and strategies for system
improvements.
We look forward to working with the City of Rosemount and are excited for the opportunity to complete the
Sanitary Sewer System Plan Update for you. I will personally serve as your lead contact on this project. Please
contact me at 763-710-1514 or johnmo@bolton-menk.com if you have any questions regarding our proposal.
Respectfully submitted,
Bolton & Menk, Inc.
John Morast, P.E., Client Service Manager
Prepared by: Bolton & Menk, Inc. 1
City of Rosemount Comprehensive Sanitary Sewer System Plan Update
Project Understanding
Comprehensive Sanitary Sewer System Plan Comprehensive Sanitary Sewer System Plan Comprehensive Sanitary Sewer System Plan Comprehensive Sanitary Sewer System Plan
UpdatesUpdatesUpdatesUpdates
A successful Comprehensive Sanitary Sewer System Plan
relies on a complete understanding of Rosemount’s issues
and resources, as well as future City development goals.
We understand the City is looking for a comprehensive
review of the current plan with basic language
modifications to match the overall 2040 Comprehensive
Plan requirements, updated land use and current
development needs.
Sanitary Sewer ModelingSanitary Sewer ModelingSanitary Sewer ModelingSanitary Sewer Modeling
The current plan includes a supplemental hydraulic model
of the existing sewer system. The City has requested
expansion of the model to include specific areas of
concern. These areas include:
• The University of Minnesota (UMore) property.
• Intercommunity (Eagan) flows in the northcentral
portion of the City.
• OPUS property/subdivision in the northeast corner
of the UMore property.
• New subdivision area on the west side of County
Road 73 near the north limits of the City, referred
to as the Cliff Property.
Our ApproachOur ApproachOur ApproachOur Approach
The City of Rosemount can be confident in Bolton &
Menk’s policy to staff all major projects using a team
approach, maintaining close coordination between the City
and project team at all times. The team assembled for this
project will provide:
• Project management
• Technical review
• Sanitary system evaluation
• Hydraulic modeling
• Digital file management
• GIS/AutoCAD data storage and display
• Proven experience
Project AssumptionsProject AssumptionsProject AssumptionsProject Assumptions
Our proposal is based on the assumption that the City will
provide the following information.
• Word Document of the current Comprehensive
Sanitary Sewer System Plan dated December 28,
2007.
• All applicable tables in Microsoft Excel (or other
spreadsheet tool) format showing calculations
performed.
• GIS shapefiles of existing and proposed land use
and any other information not already obtained by
Bolton & Menk, Inc.
• Copy of the most recent SewerCAD hydraulic
model.
• Any additional supplemental information needed
to make the necessary updates to the plan and
accompanying hydraulic model including, but not
limited to,
o Subdivision as-built plans in areas added
to the hydraulic model.
o Known system issues since the adoption
of the previous plan.
o As-built sewer updates since adoption of
the previous plan.
We also assume that the methodology for developing
anticipated service flows identified in the 2007
Comprehensive Sanitary Sewer System Plan are
applicable. We will determine if the peaking factors
identified in the 2007 Plan are still applicable using the
same methodology previously applied.
If any of these files require recreation, our scope will
require adjustment. If applicable, we will assemble the
scope and fee revisions and submit to the City for review
and approval prior to commencement of additional work.
Project Scope
Task 1: Communication Task 1: Communication Task 1: Communication Task 1: Communication
Subtask 1.1 Kick-Off Meeting
A kick-off meeting will be scheduled immediately after
Notice-to-Proceed. This meeting will:
• Introduce the entire Comprehensive Sanitary
Sewer Plan team to the consulting staff developing
the plan.
• Establish communication protocols associated
with various plan aspects.
• Formulate a mutually acceptable milestone
schedule.
Prepared by: Bolton & Menk, Inc. 2
City of Rosemount Comprehensive Sanitary Sewer System Plan Update
We will also develop a plan for incorporating maps,
modeling files, and practical field experiences with the
existing sanitary sewer collection system.
Subtask 1.2 Interim Progress Meetings
We anticipate up to two additional progress meetings as
preliminary materials are developed, at which time, the
City will provide comments and the Comprehensive Sewer
System Plan will be modified to reflect those comments.
Deliverables:Deliverables:Deliverables:Deliverables: Meeting attendance, meeting minutes.
Task 2: Task 2: Task 2: Task 2: Comprehensive Sanitary Sewer System Comprehensive Sanitary Sewer System Comprehensive Sanitary Sewer System Comprehensive Sanitary Sewer System
PlanPlanPlanPlan Language UpdatesLanguage UpdatesLanguage UpdatesLanguage Updates
Subtask 2.1 Review Current Plan
We will thoroughly review the City’s current
Comprehensive Sanitary Sewer System Plan dated
December 28, 2007. Anticipated modifications to bring
the plan into compliance with the 2040 Comprehensive
Plan will be identified.
Subtask 2.2 Collect and Incorporate New
Information
We will collect all information available through Met
Council and the City not including in the assumed list of
information described above. This includes the following.
• The City’s System Statement.
• GIS files.
• City information listed in the Met Council 2040
Water Resources Policy Plan.
• Land use and population forecasts in the 2040
Comprehensive Land Use Plan.
• Inflow and Infiltration (I&I) records since the
previous plans and any projects completed by the
City to mitigate those issues.
Subtask 2.3 Update Plan Tables and
Calculations
We assume that digital copies of the plan tables are
available and include the original calculations used to
develop peak flow values, system capacities, etc. Where
applicable, the tables will be updated to include new
information.
The current plan describes a methodology of calculating
the City’s adjusted peak flow factor and comparing it Met
Council’s recommended peaking factors. We will
continue with this same methodology and update the
City’s peak flow factor as needed based on current Met
Council interceptor flows.
Subtask 2.4 Update Existing Conditions
We will update the Sanitary Sewer System Plan to include
any modifications to the City’s sewer system since 2007.
This includes I&I mitigation projects, new trunk facilities
construction, new subdivision construction, etc. Based on
hydraulic modeling results and other known system
deficiencies, we will update the section of the plan that
evaluates the current sewer system.
Subtask 2.5 Update Future Sanitary Sewer
System
Based on the updated hydraulic model (described in Task
3), the Future Sanitary Sewer System will be updated to
reflect more immediate development plans. Further,
regional changes in land use and other future trunk
facilities modifications will be described.
Subtask 2.6 Update Capital Improvement Plan
The Capital Improvement Plan (CIP) will be updated as
follows.
• Remove projects that have already been
constructed.
• Add trunk facilities identified based on modeling
updates identified in Task 3.
• Updated costs of CIP projects not already
constructed to account for inflation since 2007.
• Add updated costs for proposed facilities
identified as part of Task 3.
CIP costs will be included for the proposed trunk facilities
options identified in Task 3 only. If additional trunk
facility layouts or options are requested by the City, we
will develop CIP costs for those options, as needed, for an
agreed upon scope and fee revision. Work on subsequent
options will commence upon approval of the scope and fee
revision.
Deliverables:Deliverables:Deliverables:Deliverables: Summary of plan changes, updated plan
tables, updated plan sections, updated CIP.
Task 3Task 3Task 3Task 3: : : : Update Update Update Update Sanitary Sewer Sanitary Sewer Sanitary Sewer Sanitary Sewer Hydraulic Hydraulic Hydraulic Hydraulic
ModelingModelingModelingModeling
The City’s current SewerCAD model will be updated
according to the following subtasks. Each model update
will also include the following general steps.
Prepared by: Bolton & Menk, Inc. 3
City of Rosemount Comprehensive Sanitary Sewer System Plan Update
• Develop sewershed/sewer service area.
• Determine distribution of land uses within each
sewershed.
• Develop peak flow values based on the peak flow
factors and design service flows identified in the
current Sanitary Sewer System Plan.
• Add/update manhole locations and elevations
(provided by City).
• Add/update pipe sizes and invert elevations
(provided by City).
Subtask 3.1 General Model Updates
We will analyze the current hydraulic model and identify
areas that may require updating. Updates may include:
• Rehabilitated or reconstructed segments of sewer.
• New development.
• Updated lift station flows.
• Changes in land use resulting in changes to service
flows.
• Redevelopment resulting in changes to service
flows.
• Updates to peaking factors.
• Updates to the estimated service flows as directed
by the City.
Subtask 3.2 UMore Property
The current Sanitary Sewer System Plan identifies the
UMore property as all single family residential land use
with no consideration for trunk sewer facilities. Based on
known and/or anticipated development patterns and land
uses, the plan tables and hydraulic model will be updated
to reflect changes in service areas and flows.
Updates to the hydraulic model will include up to two
trunk sewer routes through the entirety of the UMore
property. We will utilize anticipated development areas,
land use and surface topography to identify a route for the
trunk sanitary sewer. The model will not include lateral
line location, but will include strategic increases in pipe
size and manholes to be used for planning purposes.
Subtask 3.3 OPUS Development
New development has been proposed in the northeast
portion of the UMore property, referred to as the OPUS
development. Trunk sewer facilities will be identified to
serve the area and connect to the regional interceptor
system.
Updates to the hydraulic model will include up to two
trunk sewer routes through the entirety of the UMore
property.
Subtask 3.4 Cliff Property
A new subdivision, referred to as the Cliff Property,
located is scheduled to develop on the west side of County
Road 73 near the north limits of the City. The first
development is only a portion of the entire subdivision and
will need to be served by a temporary lift station until the
remainder of the development is constructed.
We will develop up to two lift station and trunk sewer
layouts. We will also include one option to serve the rural
residential development to the north of the Cliff Property
in the event that the private septic systems would not be
expanded or reconstructed in the future.
Our fee does not include analysis of the remaining 360
acre McMenomy Property. However, should the timeline
for development be critical such that further analysis is
needed, we can add that portion to the hydraulic model
based on an agreed upon revision to the scope and fee.
Subtask 3.5 City of Eagan Intercommunity
Flow
A new subdivision in the northcentral area of Rosemount
has the potential to be served by an extension of the trunk
sewer system in Eagan. Sewer routes include, but aren’t
necessarily limited to, the Hwy 3 corridor.
Analysis will include trunk sewer sizing for up to three
routes to serve the area. We will also identify potential tie
in points for these sewer routes and impacts to the current
sanitary sewer system. We will utilize all existing data
already developed by the City to incorporate the trunk
sewer and service area in the model.
Subtask 3.6 Southeast Service Area Updates
The Southeast Service Area has the potential to develop
under this comprehensive plan cycle. General updates to
land use may lead to changes in service flow and, in turn,
trunk sewer facilities. Based on the City’s
recommendation for land use planning, we will update the
service flows as needed and report them in the plan update.
Prepared by: Bolton & Menk, Inc. 4
City of Rosemount Comprehensive Sanitary Sewer System Plan Update
Deliverables:Deliverables:Deliverables:Deliverables: Summary of model updates, updated existing
conditions model, proposed conditions model, general
trunk facilities layouts.
Task 4Task 4Task 4Task 4: : : : Update FiguresUpdate FiguresUpdate FiguresUpdate Figures
The current Sanitary Sewer System Plan has eight (8)
figures. The figures will be updated with:
• 2040 land use.
• Current land use and zoning.
• Changes in developable acreage.
• Existing sanitary sewer system additions since
2007.
• Changes in ISTS since 2007.
• Future sanitary sewersheds.
• Future trunk sewer system additions/modifications
for the agreed upon number of options only.
All maps will be assembled in GIS and any new digital
information will be provided to the City.
Deliverables:Deliverables:Deliverables:Deliverables: Update figures. Database of new digital
information.
Task 5: Update AppendicesTask 5: Update AppendicesTask 5: Update AppendicesTask 5: Update Appendices
We do not anticipate significant changes to the appendices.
We will update the CIP tables and trunk facility
construction schedules as needed.
Task Task Task Task 6666: Final Comprehensive Sewer Plan : Final Comprehensive Sewer Plan : Final Comprehensive Sewer Plan : Final Comprehensive Sewer Plan
ReportReportReportReport AssemblyAssemblyAssemblyAssembly
We will assemble a final digital data base of:
• The report document.
• All tables including calculations therein.
• PDF figures.
• Appendices.
• SewerCAD model updates.
• GIS files.
We will provide the City with up to three (3) hard copies
of the final sewer plan as needed. We will also include a
final digital database of all files. If the final document will
be inserted into the overall 2040 Comprehensive Plan, we
will identify the final layout and format prior to final
delivery.
Deliverables:Deliverables:Deliverables:Deliverables: Final Comprehensive Sewer Plan report
Prepared by: Bolton & Menk, Inc. 5
City of Rosemount Comprehensive Sanitary Sewer System Plan Update
Fees
Bolton & Menk will plan a system for the City of Rosemount that is both resilient and cost efficient. The
total cost of a project is lowest when the upfront planning correctly identifies the best technology or plan
for a system and then implements that plan. More money can be saved with thoughtful planning than any
other phase of a project. Bolton & Menk will work with you on this project with the best planning
approach in mind to get you true value.
The Scope of Work and Fee described herein is flexible. In other words, we understand that budgets are
important. The Scope and Fee have been assembled to include the items described by the City, but
individual scope items can be removed or reduced to best meet the needs of your plan. We are confident
this approach is cost effective and will result in a truly dynamic and sustainable plan.
Our Project Understanding and Scope of Services includes several project assumptions. The Fee schedule
described below assumes that the City will provide the items listed. If changes to the Scope are required
based on any changes these assumptions, we will assemble the scope and fee revisions and submit to the
City for review and approval prior to commencement of additional work.
Client: City of Rosemount
Bolton & Menk, Inc.
Project: Sanitary Sewer System Plan Update
Task
No. Work Task Description Client Service Manager Project Manager Water Resources Engineer GIS Professional Clerical Total
Hours
Total
Cost
1.0 Communication 6 12 0 0 0 18 $2,604
2.0 Comprehensive Sanitary Sewer System Plan
Language Updates 0 8 46 0 0 54 $6,314
3.0 Update Sanitary Sewer Hydraulic Modeling 0 7 48 0 0 55 $6,416
4.0 Update Figures 0 2 8 12 0 22 $2,616
5.0 Update Appendices 0 2 20 0 0 22 $2,556
6.0 Final Comprehensive Sewer Plan Report
Assembly 2 2 12 0 4 16 $2,312
Total Hours 8 33 134 12 4 187
Average Hourly Rate $178.00 $128.00 $115.00 $120.00 $80.00
Subtotal $1,424 $4,224 $15,410 $1,440 $320
Total Fee $22,818