A
WOODARD
S& CURRAN
Between May 1s‘ — 3 soil borings were completed by New England Boring Contractors within
the Nashua River as part of the Northgate force main replacement preliminary design.
PROPOSED FINAL DESIGN
The final design phase (as presented in the following scope) will be proceed to 100% final
design and bidding of upgrades to the pump stations according to Woodard & Curran’s
recommendations included in the Design Basis Report (draft report issued January 2017;
revised report issued June 2017). The June 2017 version of the Design Basis Report has
incorporated the City’s design directives provided in their memorandum summarizing design
decisions (February 2017).
Woodard & Curran intends to use three (3) subconsulltants to provide services in support of
the final engineering design. These consultants include a geotechnical firm to evaluate the
results of geotechnical exploration and testing and to provide detailed engineering analyses
relative to the foundation design of new structures and relative to the design of horizontal
drilling for a new force main pipeline; a HVAC & plumbing consultant to design upgrades to
HVAC and plumbing systems (as required); and a specialty consultant to complete a radio
propagation study to assess radio communications for pump stations that cannot be directly
served by fiber optic communications.
Final design will include engineering drawings and specifications prepared in compliance with
NHDES Clean Water State Revolving Fund requirements. Final design documents will be
prepared according to a 60%, 90% and 100% (bid-ready) milestone schedule. The 60% and
90% submittal packages will be provided to the City for review and comment prior to preparing
the 100% design documents for bidding. Woodard & Curran will also provide standard internal
Technical Advisory Team (TAT) and Quality Assurance/Quality Control (QA/QC) reviews at
these milestones. Design review meetings will be held with city management and wastewater
treatment plant staff following document submissions to the City at the 60% and 90%
milestones to discuss the City’s review comments.
FINAL DESIGN - DETAILED SCOPE OF SERVICES
The final design project includes the following general components as described below in detail:
e Project Management
e Final Design Engineering & Bid Documents
2 Permitting
e Cost Estimating
e Bidding Assistance
Project Management
This task occurs concurrently with the other tasks outlined in the Scope of Services and includes those
tasks necessary to inform the City of the project's needs; monitor and control the design process:
coordinate information and meetings; coordinate with subcontractors and in-house design staff; reach
timely decisions to meet the project schedule; reports to the City on the progress of the project and
Status of schedule and budget; and technical oversight of project activities. Engineer will attend
City of Nashua (P228730.19) 2 Woodard & Curran
Attachment 1 June 5, 2017
