Engineering Inc. - March/April 2007 - 20

MULTI-PROJECT FEATURE Firm Digs Deep to Shore Up Reliability of the Nation’s Power Grid GZA GeoEnvironmental, Inc. F or tifying the nation’s aging power grid to avert rolling blackouts and other outages has become a national concern. GZA GeoEnvironm e n t a l , headquartered in Norwood, Mass., recently was called upon to address such a problem. T h e owner, Connecticut Light and Power Company, along with program manager Burns & McDonnell Engineering of Kansas City, Mo., selected GZA to provide geotechnical investigation services for the design and construction of the underground section of a new 69-mile electric transmission system that would eliminate the brownouts that have plagued the area during the last few years. The goal of the project is to extend the existing 345-kilovolt transmission system from Middletown to Norwalk by 2009 because the current system serving the southwest part of the state does not meet national electric reliability standards. G Z A’s re s p o n s i b i l i t i e s included developing and executing a geotechnical subsurface investigation program along approximately 20 miles of roadways as well as 13 designated trenchless pipe installations at water and railroad c r o s s i n g s along the system’s route. The survey was initiated to investigate all subsurf a c e conditions so that the actual transmission line could be designed and installed in a way to promote its longevity. GZA also was responsible for coordinating all project team logistics, health and safety plans and communications to conduct the investigations. S c h e d u l i n g the drilling of the bore holes every 200 feet along the alignment to determine the nature of the subsurface conditions was the biggest challenge of the project and the most important determinant of GZA’s success. After the exploratory work was completed, GZA prepared five separate geotechnical engineering reports for each geographical segment of the project. The reports included foundation recommendations and design parameters for the underground duct bank and splice vault structures and evaluated subsurface conditions that affect the selection of appropriate methods for the trenchless pipe installation. “All of the firms on our team provided good project mana g e m e n t and excellent communication between field personnel and the main offices. This was particularly important because it is unusual for a new transmission line to be so long and to cross so many different jurisdictions,” says Terese Kwiatkowski, a principal at GZA. ■ Terese Kwiatkowski GZA engineers inspect water and roadway crossings (inset) for a new 69-mile electric transmission line. 20 ENGINEERING INC. MARCH / APRIL 2007

Engineering Inc. - March/April 2007

Table of Contents for the Digital Edition of Engineering Inc. - March/April 2007

The BIM Boom
Legislative Action
News & Notes
Market Watch
Facilities Management for A/E Firms
Members In The News
The Path of Perseverance
One on One
ACEC Annual Convention
ACEC/PAC Achieves Record Fundraising Year
Cover Story: Alternative Energy
Re-Energizing the Industry
Contents
Business Insights
Helping Firms Manage Healthcare Costs
From ACEC to You
The Greening of Wal-Mart
Help Wanted: Leaders for Tomorrow
Engineering Inc. - March/April 2007 - Cover1
Engineering Inc. - March/April 2007 - Cover2
Engineering Inc. - March/April 2007 - Contents
Engineering Inc. - March/April 2007 - From ACEC to You
Engineering Inc. - March/April 2007 - 3
Engineering Inc. - March/April 2007 - News & Notes
Engineering Inc. - March/April 2007 - 5
Engineering Inc. - March/April 2007 - Legislative Action
Engineering Inc. - March/April 2007 - 7
Engineering Inc. - March/April 2007 - Market Watch
Engineering Inc. - March/April 2007 - 9
Engineering Inc. - March/April 2007 - Cover Story: Alternative Energy
Engineering Inc. - March/April 2007 - 11
Engineering Inc. - March/April 2007 - 12
Engineering Inc. - March/April 2007 - 13
Engineering Inc. - March/April 2007 - The Greening of Wal-Mart
Engineering Inc. - March/April 2007 - 15
Engineering Inc. - March/April 2007 - Re-Energizing the Industry
Engineering Inc. - March/April 2007 - 17
Engineering Inc. - March/April 2007 - 18
Engineering Inc. - March/April 2007 - 19
Engineering Inc. - March/April 2007 - 20
Engineering Inc. - March/April 2007 - 21
Engineering Inc. - March/April 2007 - The BIM Boom
Engineering Inc. - March/April 2007 - 23
Engineering Inc. - March/April 2007 - 24
Engineering Inc. - March/April 2007 - 25
Engineering Inc. - March/April 2007 - Help Wanted: Leaders for Tomorrow
Engineering Inc. - March/April 2007 - 27
Engineering Inc. - March/April 2007 - 28
Engineering Inc. - March/April 2007 - 29
Engineering Inc. - March/April 2007 - The Path of Perseverance
Engineering Inc. - March/April 2007 - 31
Engineering Inc. - March/April 2007 - 32
Engineering Inc. - March/April 2007 - 33
Engineering Inc. - March/April 2007 - ACEC/PAC Achieves Record Fundraising Year
Engineering Inc. - March/April 2007 - 35
Engineering Inc. - March/April 2007 - 36
Engineering Inc. - March/April 2007 - 37
Engineering Inc. - March/April 2007 - 38
Engineering Inc. - March/April 2007 - 39
Engineering Inc. - March/April 2007 - 40
Engineering Inc. - March/April 2007 - 41
Engineering Inc. - March/April 2007 - ACEC Annual Convention
Engineering Inc. - March/April 2007 - 43
Engineering Inc. - March/April 2007 - Helping Firms Manage Healthcare Costs
Engineering Inc. - March/April 2007 - Facilities Management for A/E Firms
Engineering Inc. - March/April 2007 - Business Insights
Engineering Inc. - March/April 2007 - Members In The News
Engineering Inc. - March/April 2007 - 48
Engineering Inc. - March/April 2007 - 49
Engineering Inc. - March/April 2007 - 50
Engineering Inc. - March/April 2007 - 51
Engineering Inc. - March/April 2007 - One on One
Engineering Inc. - March/April 2007 - Cover3
Engineering Inc. - March/April 2007 - Cover4
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