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cAse stuDy// photo courtesy of Balfour Beatty construction / sNApshot Contractors buried more than 25 miles of utility lines under the Memorial Units to deliver water and power invisibly. project Name: The Pentagon Memorial owner: Pentagon Renovation Program (PENREN) Design-Builder: Balfour Beatty Construction and Lee and Associates, LLC general contractor: Balfour Beatty Construction Architect and engineer: Lee and Associates, LLC concept Designer: KBAS, LLC specialty consultants: CMS (fountain designer) Syska Hennessy (MEP engineer) Light’n Up (lighting designer) Alpha Corp. (civil and structural engineering) specialty contractors: M.C. Dean Inc. (electrical subcontractor) Southland Industries (mechanical and plumbing subcontractor) Lorton Stone (stone subcontractor) Arban & Carosi (concrete subcontractor) Davey Tree (landscaping subcontractor) family Members and fundraising: Pentagon Memorial Fund nomination for an award. “They accomplished this by continually challenging everyone to consider alternative designs, approaches and construction materials until we had a design that achieved our ultimate goal—constructing a contemplative and moving tribute to the lives lost within a reasonable schedule and within overall projected costs.” INNovAtIoN At work The memorial’s components called for innovative approaches. The benches alone required intensive engineering to reduce their weight to just under 1,000 pounds from an estimated 5,000 pounds. The foundry that made them invented new machines to ensure their integrity in casting and polishing. Stonecutters used digital technology to cut and polish the granite pieces used on the benches, and each piece required a final hand-polishing. Even unseen components of the memorial required thought: Ninety percent of the MEP scope was necessary, but couldn’t be visible; more than 25 miles of utility lines are buried under the memorial to deliver water and power. This underground complex of utility lines had to fit within the existing utilities, including permanent and temporary lines installed during the initial 9/11 cleanup. And, of course, the permanent lines had to remain operational throughout construction. The design-build team used state-of-theart technology including ground-penetrating radar to identify existing lines—some of which were not on any plans—and 4D modeling of the results to develop a bottom-up picture of them and position new lines. A testAMeNt to teAMwork Teamwork was a big factor in the Pentagon Memorial’s success. Planning and construction 20 summer//2012 took more than six years. Everyone involved— the design-build team, the concept designers and PENREN staff—coordinated to make it a reality. As the project neared completion, the team did intensive performance testing to make sure everything worked properly. It also provided electronic as-built drawings, an operations and maintenance manual and training for the Pentagon staff. The project was completed ahead of the scheduled Sept. 11, 2008, date, permitting a special “soft” opening for the families of those who died. The process and the project alike exemplify many of DBIA’s best practices. The teamwork, trust, innovation and attention to detail are all elements of “design-build done right” and were instrumental in the Pentagon Memorial winning a 2011 DesignBuild Excellence Award in the Civic Category. “The people I worked with are some of the finest people with whom I have ever worked,” Laychak said. “I will be forever grateful for the contributions Balfour Beatty Construction made to the success of the Pentagon Memorial project.” toDD rIch IS a contrIButInG EDItor to DBIa’s In t EGr at Ion Qua r t ErLy a nD DBI a’S W EB a nD GraphIcS SyStEMS ManaGEr. the quarterly publication of the design-build institute of america

Table of Contents for the Digital Edition of DBIA IQ Summer 2012

DBIA IQ Summer 2012

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