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A.i Geotechnical Analyses & Recommendations

TTG intends to subcontract the geotechnical engineering work to SLR International
(formerly HTE Northeast, Inc.} out of Bedford, NH. TTG has performed many similar
water/land projects with SLR support.

SLR will provide reasonably conservative geotechnical analyses and recommendations for
the TTG final design structures. It is TTG’s understanding that prior to construction, the City
will obtain (at the direction and approval of TTG/SLR} new subsurface (land and water)
borings. Data from the borings will be used to confirm; or adjust SLR foundation
recommendations.

If the TTG designs change, the City will be notified and a scope and budget for any redesigns
provided.

A.2 ~ Spot Field (Instrument) Surveys

Certain design details (Bicentennial Park — 4 Water Street elevated boardwalk interface,
new retaining wall under the expanded deck where 4 Water Street’s elevated boardwalk
meets Renaissance Park/dock gangway, the substation screening foundation, etc.) will
require more “in-situ” ground elevation points and existing structure feature information.
TTG will be requesting 2 to 3 days of HS! field survey crew time to obtain this information
for TTG.

A.3 — Project Progress Meetings

In addition to the design coordination meetings identified in the scope for “basic” final
engineering design services, TTG has estimated 12 project progress meetings with the City
and its project representatives, to present ongoing design results, discuss budget/schedule
status, and identify potential problems. We expect these meetings would be 1 to 2 hours in
length and involve two TTG project staff to prepare, attend/present, and provide certain
meeting follow-up.

A.4 - Construction Manager {CM} Coordination

TTG understands the City plans on utilizing a CM to assist it in implementing the Riverfront
Project. It is likely the CM will be issuing RFls, Requests for Clarifications, and doing value
engineering assessments of the TTG final engineering design. TTG recognizes that time will
need to be allocated to coordinate with the City CM; but the extent and scope is
undefinable at this time.

Our services for this project will be provided in accordance with the attached “Standard
Conditions for Engagement” dated January 1, 2022.

Final Engineering Design Proposal 05-11-22 6
4920

TURNER
GROU?

ITEMS NOT INCLUDED

1. More meetings than identified in basic and additional services.

2. Construction drawings and specifications. (Note: At this time the City has not
defined the scope or method of project delivery, or its phasing, which would dictate
the criteria of scope and extent of these construction documents). Segments 3, 4, 6
& 11-14 all other drawings and specs.

3, Changes to the final engineering designs that are a result of issued state, federal or
city permit conditions.

4. RFls as part of any ongoing project permit application process.

5. Coordination with the City CM regarding the scope, fees and budgets, and
scheduling of TTG’s final engineering design.

6. Work currently being performed by others.

FEE
We propose to invoice for our services on an hourly basis per the attached “Standard Fee
Schedule and Payment Terms” dated January 1, 2022. Invoices will be submitted monthly.
A total not-to-exceed budget for the scope of work identified as “basic” final engineering
design services is $286,340. The total allowance estimate for “additional” services to
support the final engineering design is $118,000.

Attachment A is a Fee Summary Sheet line iteming and totaling the fees for “basic” and
“additional” services.

Attachment B is a Fee Breakdown providing labor and expense estimates per the Scope of
Services for the “basic” and “additional” services.

SCHEDULE

To be determined with the City.

Final Engineering Oesign Proposai 05-11-22
4920

TURNER
GROUP

CLIENT RESPONSIBILITIES

Final Engineering Design Proposal 65-11-22

4920

Owner/Contractor contract documents (except technical documents) and/or
purchase order, in order to solicit for and enter into a construction contract with a
Contractor or Construction Manager.

Solicit, administer, and award bids for construction implementation of this project.

Provide construction administration and supervisions of Contractor or Construction
Manager.

Obtain federal, state, and local permits and approvals necessary for the
implementation of this work.

Pay permit fee(s) for the new boring plan State Wetlands Permit or any other permit
fees that may be required.

Issues dealing with hazardous materials.

TURNER

GROUP

CONTRACT FORM

Please sign and return these originals as your acceptance of the above scope and terms,
including noted attachments, and your authorization to proceed. Please also provide a
purchase order or equivalent accounting number, if applicable, at the end of this letter in
order to allow us to proceed.

In the event the City (Client) issues a purchase order or other instrument related to TTG’s
(Consultant's) Services, it is understood and agreed to that such document is of the Client’s
internal accounting purpose only, and shall in no way modify, add to, or delete any of the
terms and conditions of the agreement. If the Client does issue a purchase order or other
similar instrument, it is understood and agreed to that the Consultant shall indicate the
purchase order number on the invoices sent to the Client.

We appreciate the opportunity to present this proposal and look forward to providing
continued assistance to the City with this project. If you have any questions, please do not
hesitate to contact John Lavigne at (603) 228-1122, ext. 149 or Gerard Blanchette at ext.
120.

Sincerely,

THE H.L. TURNER GROUP INC.

edn R. leauauen'y few Mockelo—

John R. Lavigne, Jr., PE, CFM Gerard R. Blanchette, PE, LEED*AP, NCEES
Lead Civil Engineer President
JRL/sai

Attachments: A-—Fee Summary Sheet
B — Fee Breakdown
C - Standard Fee Schedule & Payment Terms, January 1, 2022

TURNER
GROUP

Attachment A

Fee Summary Sheet

“Bas

Attachment A

Fee Summary Sheet
ic’ and “Additional” Services
Final Engineering Design

Item Fees

1. Basic Design ServiceS........ccssserssseccsssersseesssisereseriseeneneeteseonsscesreeeensestaee ..5286,340.00
2. Additional Services:

Al Geotechnical Analyses & Recommendation. ......cscccsseseesseceesees §$ 75,000.00

A.2 —_ Spot Field SUrVEYS......cscescressssssesreersessstsstesserentesstersesssetserteeenertts § 12,000.00

A3 Project Progress Meetings.........cccccsssscecsesnssseeseeesnarssensenseneees § 16,000.00

A.4 —-_— CM Cordination.........cssessssssesssseecrsssecseressecenevssececsnerssarsssrsenvens $ 15,000.00

OM AUrccarectsrereccetscsccesdicesceodvenrees $404,340.00

Final Engineering Design Proposal 05-11-22
4920

TURNER

GROUP

The H.L. Turner Group Inc.

27 Locke Road Concord, NH 03301

:603.228.1122 hiturner.com

Nashua Riverfront Development Project
Final Engineering Design

5/11/2022
TASK DESCRIPTION WERE OURS. Ar
PM Structural PE 5r PD Tc HOURS
Segment 4 - Boardwalk Connector
4.1 - Scour, Debris & ice Loadings 4 16 2 22
4.2 - St I ign - Pile, ndation &
ructural Design - Pile, Foundation A 40 4 aa : a
Structural Details
4.3 - Final Engineering Plans & Specifications 8 50 4 60 4 126
TOTAL HOURS 16 90 24 80 & 218
ESTIMATED ENGINEERING COSTS
Work Estimated
Hours Hourly Rate Costs
Project Manager {PM} 16 $ 150.00 $ 2,400.00
Structural Engineer (Structural) 90 5 185.00 S$ 16,650.00
Project Engineer (PE} 24 § 130.00 $ 3,120.00
Sr. Project Designer | (Sr PD) 30 $ 105,00 5 8,400.00
Technical Coordinator (TC} 8 $ 100.00 5 800.00
218 Total Fully Burdened Labor $ 31,370.00

Geotech Subconsultant $ -

Expenses

Estimated Direct Costs $

$200

200.00

TOTAL ESTIMATED COST= $ 31,570.00

The H.L. Turner Group Inc.

27 Locke Road Concord, NH 03301 = t: 603.228.1122 hiturner.com

Nashua Riverfront Development Project
Final Engineering Design

5/11/2022
WORK HOURS TOTAL
TASK DESCRIPTION PM Structural PE Se PD iis HOURS
Segment 2 - Path & Riverbank Enhancements
2.1 - Substation Riverbank E&S Evaluation 8 24 I. ] 32
ll
I
Be Sot Lee pe Ope, or ee dee FL emiote| SREB Geet Tao Geile bce 24 ee diem O oat oe eee ee ee ee ee ee ee ee
a sees ee teed ee ee es ee ee ee) ee ee es get es es ee ee ee ee eee ee ee Oe ne ee ee i et es ee
TOTAL HOURS 8 0 24 0 0 32

ESTIMATED ENGINEERING COSTS

Work Estimated
Hours Hourly Rate Costs

Project Manager (PM) 3 $ 150.00 $ 1,200.00

Structural Engineer (Structural) 8] $ 185.00 5 .
Project Engineer (PE) 24 $ 130.00 $ 3,120.00

Sr, Project Designer | (Sr PD) 0 $ 105,00 5

Technical Coordinator (TC} 0 $ 100.00 $ .
| 32 | Total Fully Burdened Labor $ 4,320.00

Subconsultant S -
Expenses 5 100.00

Estimated Direct Costs $ 100,00
TOTAL ESTIMATED COST= $ 4,420.00

P:\4920 VHB - Nashua River Walk\Organization\Proposals\Final Engineering Design Proposai 05-11-22\Final Engineering
Estimate 05-11-22.xIsx 1 of 2

The H.L. Turner Group Inc.

SSS EEE ——,

27 Locke Road Concord, NH 03301

: 603.228.1122 hiturner.com

Nashua Riverfront Development Project
Final Engineering Design

5/11/2022
TASK DESCRIPTION WEREHOUBS eu
PM Structural PE Sr PD re HOURS
Segment 3 - Substation Screening
Ba - Metal Screening Structure 4 24 a0 of 2 70
13.2 - Foundation Design 8 8
I Preiiminary completed) 8 36 2 46
Final Design 8 24 2 34
3.3 - Flood Resiliency Evaluation 8 24 2 34
?
Weta eae beta errr a NT or) RITET SE S| Oe ELT aaj 24 vou | Se 40 bes | as Bees | etene 192 %a0 6 |
TOTAL HOURS 36 84 24 40 8 192
ESTIMATED ENGINEERING COSTS
Work Estimated
Hours Hourly Rate Costs
Project Manager (PM) 36 $ 150.00 $ 5,400.00
Structural Engineer (Structural) 84 $ 185.00 $ 15,540.00
Project Engineer {PE} 24 $ 130.00 $ 3,120.00
Sr. Project Designer # (Sr PD) 40 $ 105.00 $ 4,200.00
Technical Coordinator (TC) 8 $ 100.00 $ 800.00
192 Total Fully Burdened Labor $ 29,060.00
Geotech Subconsultant $ :
Expenses $ 150.00
Estimated Direct Costs $ 150.00

TOTAL ESTIMATED COST =

$ 29,210.00

The H.L. Turner Group Inc.

27 Locke Road Concord, NH 63301

t: 603,228,1122 hiturner.com

Nashua Riverfront Development Project

Final Engineering Design

5/11/2022
TASK DESCRIPTION WCRRIGURS pOrAe
PM Structural PE Sr PD Te HOURS
Segment 5 - Multi-Use Path Connector eR a!
5.1 - Erosion & Scour Determination 8 20 2 30
ae a a a Oo Sah ae OU GE Oe Ge Ge ee Ce SS Ce Se ee eee cee ee ee eee eee eee ee ee eee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee
Pe 2a a Rea FS a ee FS ed a B RBIS NA ORES 20 | el OE Pate Rapes 30 Sv
|
TOTAL HOURS 8 0 20 fi] 2 30
ESTIMATED ENGINEERING COSTS
Work Estimated
Hours Hourly Rate Costs
Project Manager (PM) 8 S 150.00 $ 1,200.00
Structural Engineer (Structural) 0 $ 185.00 $ .
Project Engineer (PE) 20 $ 130.00 $ 2,600.00
Sr. Project Designer | (Sr PD) 0 $ 105.00 $ .
Technical Coordinator (TC) 2 $ 100.00 $ 200.00
| 30 | Total Fully Burdened Labor $ 4,000.00
Subconsultant S -
Expenses $ 100.00

Estimated Direct Costs $ 100.00

TOTAL ESTIMATED COST =

$ 7,100.00