Rhode Island Hospital

Boiler Chiller Expansion Project

Project Overview

Arden upgraded Rhode Island Hospital’s existing boiler and chiller plants to replace aging systems and accommodate the additional load of the new five-story Bridge Building Trauma Center. The mechanical room location required work at the epicenter of the hospital with sensitive operations adjacent on all sides.

Project Detail

The mechanical room location required work at the epicenter of the hospital with sensitive operations adjacent on all sides. Since the boiler plant generated the majority of the hospital’s power and could never be shut down, the team worked in carefully planned phases to install the new 235-foot tall double wall steel stack with new breechings. A 500 ton hydraulic crane was used to place two new 750-ton chillers and the 7,000-GPM cooling tower over existing buildings and atop the existing plant. Crane picks were scheduled over weekends to ensure minimal disruption to the hospital operating rooms located directly below.

Download Case Study (PDF)

Project Specifications

Contract Amount: $9,000,000

Total Project Value: $16,000,000

Construction Manager: Walsh Brothers, Inc.

Mechanical Engineer: Flak + Kurtz

Facility Size: 400,000 sq. ft.

Location: Providence, RI

Highlights / Achievements

235-foot tall double wall steel stack with new breechings

2 new 750-ton chillers

7,000 GPM cooling tower

500-ton hydraulic crane enabled installations at hospital’s epicenter

Working adjacent to sensitive operations on all sides

Phased schedule ensured no disruption to hospital power

2005 AGC Build New England Award

2006 AGC Build RI Award

Value Delivered

Installation of new boiler and chiller plant systems have generated considerable efficiency gains for the hospital, including the utilization of surplus low-pressure steam from the turbine generation plant; a resource which would have otherwise gone unused.

About Arden Companies

Complex building systems demand technically advanced solutions. As the holding company for Arden Engineering Constructors, MJ Daly, Unique Metal Works, and Corporate Mechanical of New England, Arden Building Companies provide a robust skill set that covers a wide range of services including: engineering design, mechanical construction and maintenance services, electrical construction, sheet metal fabrication, sprinkler construction and service, and co-generation “green” energy. Our resources run deep and our ability to listen to our customers and create financially and energy efficient solutions keep us the one-stop provider of mechanical building solutions in New England.

Contact Arden Engineering Constructors:

Engineering Tim Elliott telliott@ardeneng.com
Service Jeff Potter jpotter@ardeneng.com
Construction John Puniello jpuniello@ardeneng.com
Electrical Rob Cote rcote@ardeneng.com


Arden Engineering Constructors, LLC
505 Narragansett Park Drive
Pawtucket, RI 02861
Tel: 401-727-3500
Fax: 401-727-3540

Go to Arden Engineering Constructors

Contact MJ Daly:

President Edward Carvalho ecarvalho@mjdalyllc.com
Safety Monica Arbo marbo@mjdalyllc.com
Design/Engineering Tim Elliott telliott@mjdalyllc.com
Mechanical Construction Dan Nelson dnelson@mjdalyllc.com
Fire Protection Paul Evon pevon@mjdalyllc.com
Fabrication/Wholesale Mark Genova mgenova@mjdalyllc.com
Building Services 24/7 Salie Cameron scameron@mjdalyllc.com
FIKE Fire Alarm & Suppression Sales Engineer Kris Pavelko kpavelko@mjdalyllc.com


MJ Daly
110 Mattatuck Height Road
Waterbury, CT 06705
Tel: (203) 753-5131
Fax: (203) 597-0227

Go to MJ Daly

Contact Unique Metal Works:

Norman Brothers General Manager 401-726-4900 nbrothers@uniquemtl.com


Unique Metal Works
489 Narragansett Park Drive
Pawtucket, RI 02861
Tel: 401-726-4900
Fax: 401-728-9180

Go to Unique Metal Works

Contact Corporate Mechanical:

Bill Welch President wwelch@corpmech.com


Corporate Mechanical
1501 Main Street
Tewksbury, MA 01876
Tel: (978) 851-8900
Fax: (978) 851-8901

Go to Corporate Mechanical