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VO Design Services & Project Management of Downtown Riverfront Implementation
July 31, 2020

HL Turner has developed 2-, 5-, 10-, 50-, 100- and 500- year peak Nashua River flows
using data/analysis of stream flow records from the USGS’ Pepperell, MA gage, transposed
downriver to the project site.

HL Turner will utilize their project design river hydraulic model using the current effective
FEMA HEC-RAS model, and determine ‘low-water surface elevation profiles for the 2-
through 500-year peak river flows, and the FEMA regulatory floodway zone.

Based on the agreed upon project design flood resiliency and structural criteria, HL Turner
will select and insert the design plan features into the project design hydraulic river model.

HL Turner will provide VHB and the Project Team the results of the hydraulic impacts (Le.
water surface elevation rises, floodway impacts and river velocity increases) identifying
impacts and recommendations on how to deal with the impacts (i.e. removal or
reorientation of certain plan features, or creation of mitigation areas).

Lead Consultant HL Turner
Support from: VHB, Halvoson

2.3 Permitting

Permit applications will be prepared after Phase 2 when the impacts are well defined, but
during Phase 2 the design team will be cognizant of the potential permitting implications
of every aspect of the design when important design decisions are betng made. As the
design progresses VHB environmental specialists will advise the design team relative to
permitting implications. In addition, The HL Turner Group will provide crucial input on any
in-stream or shoreline work that couid potentially affect flood levels.

Lead Consultant: VHB
Support from: HL Turner
2.4 Utility Coordination

Utility coordination at this stage is assumed to be minimal since the designs and impacts
are preliminary. A small fee is included to cover correspondence and issuing plans to
potentially impacted utility companies.

Lead Consultant: VHB

2.5 Property Owner Coordination

Considering budgetary constraints and the coordination that has occurred during
conceptual design, a minimal fee is included for this task. It is assumed the City will
arrange any calls needed with affected property owners.

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Vi Design Services & Project Management of Downtown Riverfront Implementation
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2.6 Environmental Testing

Due to budgetary constraints environmental testing is not included in this phase. If this
service is added to the contract VHB will work with one of it's selected environmental
testing forms with experience in asbestos testing.

2.7 Public and Stakeholder Engagement

At the city’s urging the proposed approach to public engagement during Phase 2 will be
significantly scaled back due to budgetary constraints and less of a need to solicit input on
the designs during this phase.

VHB will participate in one public meeting that will likely be a project update and an
opportunity for additional input and interaction. VHB will also participate in one City
Leaders meeting to provide a project update. The design team will not produce special
visualization graphics for these meetings, but will instead rely on previous graphics,
representative photos and the progress plans that are being developed during this phase.

Lead Consultant: VHB
Support from: Halvorson

2.8 Phase 2 Project Meetings

The design team will participate in regularly scheduled project meetings with the City at
which a range of design and project development topics will be discussed. These meetings
will generally be bi-weekly conference/video calls as needed to provide an opportunity to
coordinate activities and to keep the project on track. We assume there will be eight (8)
scheduled project coordination calls with the City during Phase 2, and four (4) unscheduled
calls / meetings.

Lead Consultant: VHB
Support from: All
Estimated Duration: throughout Phase 2

2.9 Preliminary Cost Estimating

VHB will manage and assemble cost estimates for each of the project components from
the design team members in their respective disciplines. The HL Turner Group will provide
costs for the proposed boardwalk and in-water features, and VHB and Halvorson will
provide costing for site-civil, ADA ramp, paths, streetscape, and landscape features. Cost
estimates will be based on major items and appropriate contingencies, We anticipate
aligning the cost estimates with each of the so called “sub-projects” that evolve from the

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vo Design Services & Project Management of Downtown Riverfront Implementation
July 31, 2020

conceptual design such that they could easily be advanced on different or combined tracks
to construction if a need arises.

lt is our Understanding that the City may bring tn a construction firm to assist with the cost
estimating during the preliminary design phase.

Lead Consultant: VHB
Support from: All

2.10 Project Management

VHB has included a small fee to perform regular project management tasks with the City
and the design team.

2.11 Lighting

The majority of the Riverfront lighting design has already been advanced under an existing
City contract by Lumen Design Studios with support from Fitzemeyer & Tocci for power
supply. There are still known gaps in the design, however, they will be addressed during
Phase 3 final design when the riverfront design is better defined. A small allowance has
been included in Phase 2 for Lumen Design and Fitzemeyer & Tocci so the design team
can seek their input on lighting new components of the proposed riverfront
improvements, such as Park de la Renaissance.

Lead Consultant: Lumen Design Studio & Fitzemeyer & Tocci,
Estimated Duration: ongoing

2.13 Park Pavilion Architectural Desian

At the suggestion of Halvorson Design, an architect will be used during preliminary design
to better define the design of the pavilion that will serve as a focal point in Parc de la
Renaissance. Their proposal is included as an exhibit.

SERVICES NOT INCLUDED

The following services are either not anticipated or budgeted for this phase and are
therefore not included in this amendment.

e Property owner negotiations or easement plans

« Traffic studies or analysis

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who Design Services & Project Management of Downtown Riverfront Implementation
July 31, 2020

° Marine engineering

e Drainage studies, analysis, or design
e 3D visualizations

e Soils testing for hazardous materials

SCHEDULE

VHB proposes to complete the preliminary design phase in 3 months trom receiving noiice to
proceed. This schedule is dependent on receiving topographic survey files in a timely manner,
and is subject to extension due to delays by others in decision making, responsiveness or
reviews.

RIGHT TO RELY

lt ts understood that VHB will perform services under the sole direction of the City. The City shall
provide VHB with project-related technical data including, but not limited to, topographic and
right-of-way surveys, existing plans or studies, GIS data sets.

COMPENSATION

VHB and its subconsultants will perform the Scope of Services on a time and materials basis. The
estimated Upset Limit for this Scope of Services is $ 500,000. including labor, overhead, profit
and direct expenses. VHB direct expenses will be billed at their actual cost without markup and
subconsultants will be billed at their actual cost without markup.

VHB $ 189,300.00
Halvorson Design (ighe & Bond) § 89,700.00
H.L. Turner § 90,000.00
Lumen Design $ 3,000.00
Fitzmeyer & Tocci G 2,000.00
Geotechnical Services (Allowance) § 68,000.00
Point Cloud Building Survey (VHB) § 7,000.000
RR Bridge inspection Vehicle § 3,500.00
Railroad Insurance (Allowance) § 5,000.00
Touloukian & Touloukian Architects $ 42,500.00
PHASE 2 AMENDMENT TOTAL: $ 500,000.00

The execution of this amendment provides authorization for the services described above.

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vib Design Services & Project Management of Downtown Riverfront Implementation
July 31, 2020

APPROVED FOR APPROVED FOR
VANASSE HANGEN BRUSTLIN, INC. CITY OF NASHUA, NEW HAMPSHIRE
(ENGINEER) (CLIENT)
By: By:
Title: Title:

Date: Data:

Federal Clauses —- Sewer Line Replacements & Associated Administrative Building
Repairs

1. No Federal Government Obligation to Third Parties,

The City and the Contractor acknowledge and agree that, notwithstanding any concurrence by the Federal
Government in or approval of the solicitation or award of the underlying contract, absent the express written
consent by the Federal Government, the Federal Government is not a party to this contract and shall not be
subject to any obligations or liabilities to the City, the Contractor, or any other party (whether or not a party
to that contract) pertaining to any matter resulting from the underlying contract.

The Contractor agrees to include the above clause in each subcontract financed in whole or in part with
Federal assistance provided by FTA. It is further agreed that the clause shall not be modified, except to
identify the subcontractor who will be subject to its provisions. Incorporate FTA Terms

2. Termination and Suspension.
Please see Termination and Suspension Language in Article 15 of the
Agreement

3. Program Fraud and False or Fraudulent Statements or Related Acts.

The Contractor acknowledges that the provisions of the Program Fraud Civil Remedies Act of 1986, as
amended, 31 U.S.C.§ 3801 et seq. and U.S. DOT regulations, "Program Fraud Civil Remedies," 49 C.F.R.
Part 31, apply to its actions pertaining to this Project. Upon execution of the underlying contract, the
Contractor certifies or affirms the truthfulness and accuracy of any statement it has made, it makes, it may
make, or causes to be made, pertaining to the underlying contract or the FTA assisted project for which this
contract work is being performed. In addition to other penalties that may be applicable, the Contractor further
acknowledges that if it makes, or causes to be made, a false, fictitious, or fraudulent claim, statement,
submission, or certification, the Federal Government reserves the right to impose the penalties of the
Program Fraud Civil Remedies Act of 1986 on the Contractor to the extent the Federal Government deems
appropriate.

The Contractor also acknowledges that if it makes, or causes to be made, a false, fictitious, or fraudulent
claim, statement, submission, or certification to the Federal Government under a contract connected with a
project that is financed in whole or in part with Federal assistance originally awarded by FTA under the
authority of 49 U.S.C.§ 5307, the Government reserves the right to impose the penalties of 18 U.S.C.§ 1001
and 49 U.S.C.§ 5307(n)(1) on the Contractor, to the extent the Federal Government deems appropriate.

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Vi 15 Design Services & Project Management of Downtown Riverfront Implementation
July 31, 2020

EXHIBITS

Preliminary Design Fee Summary
VHB Structural Design Scope and Fee Spreadsheets

Touloukian & Touloukian architectural design proposal

Nashua Downtown Riverfront Project Lead Consultant Team Members are Hig for Each Task
Lumen Fitzmeyer &
Studios Tecci

VHB Halvorson Hi Tumer TOTALS

Phase 2 - Schematic Design (Preliminary Plans)

2.1 Schematic (P Plans}

244 Initiate Phase 2 $71,100!

2.12 Preliminary Design Plan development

Factory St. Extension Ped Access to
Pine Street

nofF St Extension $3

Parc de Renaissance and Water and $8,000. $57,500:
4 Water St Boardwalk $1,100.00
Renovation to Bicentennial Park - $0.00
53 Main St Cantilevered Boardwalk $1,800.06
Miulttuse Path $4,300.00
Substation $0.00
Boardwalk and Floa Dock $3,200.00
Trail $13,850
Riverbank Restoration $0.00

Cotton Transfer ADA $33,506.0

BAE Trail and Parking Modifications $13,000. §13,000.0

PanAm Ped Walkway Rehabilitation $30,370. §30,37

South Side Trail nts 00
ADA Ram $16,380
60 Main Street Boardwalk and Trail $10 $13,000.

Pearson Ave Alternative Connection : $0.00 $0.00

Preli ale : 0.00 $0,600
$15,000.00
to Final $0.00 $9.00
Utility Coordination $1,800.00 $1,800.00
Owner Coordination $1,500. $1,500.
Env, T:
Public & Stakeholder
Meeti eam and Staff)
Preliminary Cost
ement
hei cal Minor $3,000.00
Reimbursable Expenses {lf $1,000.00
Park Pavilion Architectural

PHASE 2 SUBTOTALS= | $189,300.00 000.00 I $41 0.00
5% SUBCONSULTANT ADMIN FEES (WAIVED)= $0.00

Other Expenses and Allowances:

Geotechnical for 2 Ped Ramp Structures: $18,000.00 $18,000.00
Geotechnical for In-Water Structures: $50,000.00 $50,000.00

Point Cloud Building Face Surveys: $7,000.00 $7,000.00

PanAm Inspection Vehicle: $3,500.00 $3,500.00

PanAm RR insurance {Allowance} $5,000.08 $5,000.00

Irrigation Design and Engineering: (DELETED) $0.06
Horticultural Soils Consultant: (DELETED} $0.00

TOTAL OF OTHER EXPENSES AND ALLOWANCES: $83,500.00

PHASE 2 TOTALS = $222,800.00 $89,700.00 $140,000.00 $3,000.00 $2,000.00 $500,000.60

PRELIMINARY AND FINAL DESIGN PROPOSAL-PHASE 2, 3 & 4
Scope of Services, Tasks, and Fee
Structural Engineering Services-Connector Ramp to the
Cotton Transfer Bridge at Cotton Mill Building, Nashua, NH
July 31, 2020

Scope of Services
Summary of Services:

Following is a summary of the professional engineering services required for Preliminary Design
(Phase 2}, 90% Design (Phase 3), and Final Design (Phase 4). Note that conceptual design
(Phase 1} has already been completed and submitted to the City: oo

1) Preliminary and Final Structural Engineering Design and Detailing of a Ramp from the
ground on the north side of the Nashua River at the Cotton Mill Apartment Building
connecting to the existing bridge spans.

2) Geotechnical explorations with Preliminary and Final Geotechnical Engineering
recommendations for the foundations to support the above-mentioned ramp.

The anticipated schedule is as follows:
« August 2020: Contract Executed/Notice-to-Proceed
e November 2020: Preliminary Plans and Estimaie for review assuming Survey is provided by
September 1, 2020.
e January 2021: 90% Plans, Specifications and Estimate for review
e March 2021: Final Design Documents
e Aprif2021: Project Advertisement

Phase 2—- Preliminary Ramp Design and Estimate

1. Address comments on Conceptual (Phase 1) recommendations.

2. Once survey is provided by the City, VHB will confirm the ramp layout shown in the conceptual
ramp plans and adjust the ramp as needed to meet the existing grade of the project site. The
ramp willbe ADA compliant.

3. VHB will coordinate with the Geotechnical Engineering subconsultant for geotechnical
explorations and to provide preliminary and final geotechnical recommends for the ramp
foundations.

4. VHB will perform preliminary design and detailing for the major ramp components. The ramp will
be designed in accordance with the 2009 AASHTO LRFD Guide Specification for the Design of
Pedestrian Bridge with 2015 interim Revisions and the 2020 AASHTO LRFD Bridge Design
Specifications, 9" Edition, as applicable.

5. VHB will develop two conceptual screen/fence alternatives on the north side of the ramp to
provide privacy for the building occupants. Preliminary costs for each alternative will be provided.

6. VHB will develop preliminary plans showing all the major elements of the ramp but will not include
fully developed details of all work elements. This phase will also identify ramp material type and
aesthetic details. lf possible, VHB will mimic the ramp material properties and aesthetics used on
the ramp on the south side of the cotton transfer pedestrian bridge, to maintain consistency.

7. VHB will develop a construction cost estimate based on major item quantities and NHDOT
average unit bid prices.

8. The VHB Project Manager / Program lead will perform a quality assurance review of the
preliminary plans and estimate.

9, VHB will prepare and submit preliminary ramp plans and estimate for review.

Phase 3 - 90% Ramp Design and Estimate
1. Address comments on Preliminary (Phase 2) recommendations.
2. Final coordination with the Geotechnical Engineer for final foundation recommendations.

7.

8,

VHB will perform final design and detailing for all ramp components and connections.

VHB will develop 90% Ramp Plans. This plan set will include all details, notes and complete
quantity sheet. The ramp will be constructed according to the latest edition of the State of New
Hampshire Department of Transportation Standard Specifications for Raad and Bridge
Construction, unless ciherwise amended by City details and specifications.

VHB will prepare a 90% construction cost estimate and quantities based on the final plan set.
VHB will develop draft specifications including any technical special provisions required for the
project that are not included in the NHDOT Standard Specifications.

The VHB Project Manager / Program Lead will perform a quality assurance review of the 90%
Plans, Specifications and Esiimate

VHB will prepare and submit 90% Plans, Specifications and Estimate for review.

Phase 4-~ 100% (Final} Ramp Design and Detailing:

1.
2.

3.

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Address comments to 90% design (Phase 3) recommendations.

The cover sheet will be stamped by a licensed Professional Engineer, registered in the State of
New Hampshire. :

The VHB Project Manager / Program lead will perform a quality assurance review of the
preliminary plans and estimaie.

Final contract documents will be submitted to the City for advertisement.

Support for bid phase services including answering RFls and a bid analysis.

will provide Phase 2, 3 and 4 services for the following lump sum amounts:

Phase 2 — Preliminary Design: $33,490
Phase 3 -— 90% Design: $33,650

Phase 4 -— 100% (Final) Design: $13,640
Direct Expenses: $500

Geotechnical Subconsultant — $10,000

Assumptions:

Preliminary plans and sketches are for review and commen only, they shall not be used as
bidding documents for construction.

Attending project meetings is not required as part of this scope of services.

Attending, preparing for, and/or presenting at public meetings is not required as part of this scope
of services,

Survey (including base map), Right-of-Way, wetland and resource delineations by respective
Design Team Disciplines will be provided by the City for the purposes of designing and laying out
the ramp prior to the siart of preliminary design.

All permitting for the project will be completed by the City.

The ramp layout will not significantly deviate from that shown in the conceptual plans.

Railing, decking, and general ramp and pier aesthetics will closely match that of the previously
designed and constructed rarnp at ihe south end of the Cottan Transfer Bridge.

Two conceptual level alternatives will be provided for the privacy screen/fence on the north side
of the ramp. Preliminary costs for the privacy screen/fence itself will be provided for each
alternative; however, these costs will not reflect the increase in costs io the ramp structure due to
the addition of the privacy screen/fence. The scope of services does not include the design efforis
associated with privacy screen/fence alternatives on the north side of the ramp which could
significantly impact the ramp design and detailing effort. A separate fee for the design effort of the
privacy screen/fence and associated impacts to the ramp design will be submitted if the City
chooses to move forward with a screen alternative.

The foundations for the ramp will be set at an elevation where no hydraulic analysis or scour
analysis will be required. The City will be responsible for addressing any right-of-way issues that
affect the project. Identifying and securing premising to use any property not owned by the City
for staging areas, access, or any other construction purpose will be the responsibility of the
Contractor.