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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.
Un
VH
eo 2 09 o@ o
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.
® Structural Design of the ramp structure will be in accordance with the 2009 AASHTO LRFD Guide
Specification for the Design of Pedestrian Bridge with 2015 interim Revisions and AASHTO LRFD
Bride Design Specifications, 9" Edition, as appropriate.
« Plans will be developed in AutoCAD format.
e The project will not involve a federal action (agency funding or federal permitting) and therefore
neither the National Environmental Policy Act nor Section 106 of the National Historic
Preservation Aci will apply.
e Because this is a municipal project, local zoning and permitting applications will not be required.
e An architect is not required for design and detailing of the ramp. If a specialized structure is
required, an architect can be engaged as needed under a future amendment.
* A separate scope and fee will be submitted to the City jor Construction Phase Services.
e =©All utility coordination will be performed by the City.
e No modifications are required to be made to the sitting wall adjacent to the existing paved trail on
the north side of the river,
lf work is required in any of the above areas not previously described, VHB will prepare a
contract amendment to provide a separaie description of service, fee, and schedule required to
complete the additional scope.
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PRELIMINARY AND FINAL DESIGN PROPOSAL-PHASE 2, 3 & 4
Scope of Services, Tasks, and Fee
Structural Engineering Services
Rehabilitation of the Pedestrian Walkway on the Pan Am Railroad Bridge, 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), 99% Design (Phase 3), and Final Design (Phase 4). Note that conceptual design
(Phase 1} has been submitted to the City: -
1) Preliminary and Final Structural Engineering Design and Detailing of rehabilitation
alternatives jor the pedestrian walkway cantilevered off the side of the Pan Am Railroad
bridge in Nashua, NH.
The anticipated schedule is as follows:
August 2020: Contract Executed/Notice-to-Proceed
December 2020: Preliminary Plans and Estimate for review
March 2021: 90% Plans, Specifications and Estimate for review
May 2021: Final Design Documents
April 2021: Project Advertisement
es ¢# 8 8 &
Phase 2 — Preliminary Pedestrian Walkway Design and Estimate
1. Address comments on Conceptual (Phase 1} recommendations.
2. Coordination with the Pan Am Railroad regarding railroad right of way, service life of the railroad
ties supporting the pedesirian walkway, etc.
3. Perform a hands-on evaluation of the pedestrian walkway (this includes the full length of the
cantilevered timber ties) using a rail-mounied under-bridge inspection vehicle and obtain
measurements necessary to complete an analysis and evaluation of the walkway members to
remain. VHB will coordinate with the Railroad to obtain permission to access the tracks and
bridge for inspection purposes.
4. VHB will periorm preliminary design and detailing for the pedestrian walkway components
including the cantilevered timber ties supporting the walkway, the walkway timber stringers,
walkway deck, and walkway railing. The walkway will be designed in accordance with the 2018
American Railway Engineering and Maintenance-of-Way Association (AREMA) Manual.
5. VHB will evaluate and provide up to four railing alternatives for the railing on the west side of the
pedestrian walkway. The chain link fence (CLF) on the east side of the walkway will remain
unchanged.
VHB will evaluate decking alternatives for the pedestrian walkway.
VHB will develop preliminary rehabilitation plans for the pedestrian walkway showing all the major
elements of the walkway but will not include fully developed details of all work elements. This
phase will also identify the proposed railing and decking alternate including material type.
8. VHB will develop a construction cost estimate based on major item quantities and NHDOT
average unit bid prices.
9. The VHB Project Manager / Program Lead will perform a quality assurance review of the
preliminary plans and estimate.
10. VHB will prepare and submit preliminary plans and estimate for review.
™ oO
Phase 3 - 90% Pedestrian Walkway Design and Estimate
1. Address comments on Preliminary (Phase 2) recommendations.
2. Final Coordination with the Pan Am Railroad.
3. VHB will perform final design and detailing jor all pedestrian walkway components.
5,
8.
7
8.
VHB will develop 90% rehabilitation plans for the pedestrian walkway. This plan set will include all
details, notes, and a complete quantity sheet. The pedestrian walkway will be constructed
according to the latest edition of the State of New Hampshire Department of Transportation
Standard Specifications for Road and Bridge Construction, unless otherwise amended by Pan
Am Railroad details.
VHB will prepare a 90% construction cost estimate and quantities based on the final plan set.
VHB will develop draft technical specifications.
The VHB Project Manager / Program lead will perform a quality assurance review of the 90%
Plans, Specifications and Estimate
VHB will prepare and submit 0% Pians, Specifications and Estimate for review.
Phase 4 — 100% (Final) Pedestrian Walkway Design and Detailing:
1.
2.
3.
4.
5
Fee:
Address comments to $0% design (Phase 3) recommendations.
The cover sheet will be stamped by a licensed Professional Engineer, registered in the State of
New Hampshire. coe
The VHB Project Manager / Program lead will perform a quality assurance review of ihe 100%
Plans, Specifications and Estimate
Final contract documenis will be submitied to the City for advertisement.
Support for bid phase services including answering RFls and a bid analysis.
VHB will provide Phase 2, 3 and 4 services for the following lump sum amounts:
Phase 2 — Preliminary Design: $30,370
Phase 3~ 90% Design: $35,030
Phase 4 — 100% (Final) Design: $12,980
Direct Expenses: $5,500
Vendor - $3,500, NE Bridge Contractors, Inc. (Under bridge inspection unit)
Assumptions:
Preliminary pedestrian walkway rehabilitation plans are for review and comment only, they shall
not be used as bidding documents for construction.
Attending project meetings is not required as part of this scope of services.
Aitending, preparing for, and/or presenting at public meetings is not required as part of this scope
of services.
Survey (including base map) and Right-of-Way will be provided by the City for the purposes of
design prior to the start of preliminary design.
Permitting is not required for the project.
VHB will not structurally evaluate the existing railroad bridge. The railroad bridge is presumed
adequate for combined railroad and pedestrian loading. If a structural evaluation of the existing
railroad bridge is requested or deemed necessary, VHB will submit an amendment with a
separate scope and fee for this work.
if the structural members that are intended to remain as part of the existing walkway (timber ties
and timber stringers} are determined to be structurally inadequate, VHB will provide this
information to the City and not perform further rehabilitation alternatives as this would require a
more extensive evaluation and rehabilitation of the existing railroad bridge which is outside of this
effort.
Structural Design of the pedestrian walkway will be in accordance with the 2018 American
Railway Engineering and Maintenance-of-Way Association (AREMA) Manual.
No safety improvements are required for the Pan Am bridge.
. Plans will be developed in AutoCAD format.
Because this ts a municipal project, local zoning and permitting applications will not be required.
An architect is not required for design and detailing of the pedestrian walkway. lf a specialized
structure is required, an architect can be engaged as needed under a future amendment.
A separate scope and fee will be submitted to the City for Construction Phase Services.
All utility coordination will be performed by the City.
« No Pan Am flaggers will be required for bridge inspection or other site visits. If flagging services
are required by the Railroad, all costs for flagging or other Railroad related services will be billed
directly to the City by the Railroad.
If work is required in any of the above areas noi previously described, VHB will prepare a
contract amendment to provide a separate description of service, fee, and schedute required to
complete the additional scope.
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