Hayward Baker Awarded Ground Improvement Contract for New Atlanta Stadium Project

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Work has begun on the new Atlanta Stadium project where Hayward Baker has been awarded a contract for the ground improvement work.

Geotechnical construction contractor Hayward Baker Inc. was recently awarded a contract for the New Atlanta Stadium project. The new stadium, slated to open in 2017, will serve as home for the Atlanta Falcons, a new Major League Soccer team, and other major sports, entertainment and convention events.

The terms of the contract call for Hayward Baker to design and construct 2.5-foot diameter Vibro Piers™ to depths up to 27 feet to increase the allowable bearing capacity to 4,000 pounds per square foot (psf) for a number of the foundations. Hayward Baker is working 10 to 12 hour days Monday through Saturday to maintain the schedule, reaching completion within 5 weeks of mobilization.

Scope of Work
Hayward Baker’s work, having begun in August, consists of constructing Vibro Piers to support isolated column foundations and load bearing continuous wall foundations. A hydraulic predrill rig is being used to auger a 2.5-foot diameter hole at each location prior to pier construction. The hole is then backfilled with lifts of No. 57 stone and the vibrator is lowered to compact each lift until the top elevation of the pier is reached. Hayward Baker is utilizing proprietary data acquisition (DAQ) equipment to monitor and record all construction parameters, including penetration depth, time and energy parameters, and stone quantity.

The settlement of the foundations supported by the Vibro Piers will be limited to less than 3/4 inches and 1/2 inches of differential settlement between the supported footings. Two modulus tests to 150% of the design load were conducted prior to production to confirm the vibro pier modulus utilized in the design.

Commenting on the New Atlanta Stadium project, Joe Persichetti, Vice President, stated, “Hayward Baker is thrilled to have this opportunity to work with Reeves Contracting and the Joint Venture team consisting of Holder, Hunt, Russell, and Moody on this exciting project for the Atlanta community. Hayward Baker’s core values regarding safety and quality match those of the other team members and are intrinsic to making this project a success on all levels.”

About Hayward Baker Inc.
Hayward Baker [http://www.haywardbaker.com is North America’s leader in geotechnical construction, annually ranked by Engineering News-Record (ENR) magazine #1 in the profession. With a 60-year record of experience, Hayward Baker offers geotechnical construction technologies through a network of more than 20 company-owned offices and equipment yards across the continent. Project applications include foundation support, settlement control, site improvement, slope stabilization, underpinning, excavation shoring, earth retention, seismic/liquefaction mitigation, ground water control, and environmental remediation.

Hayward Baker Inc. is part of the Keller Group of companies, a multinational organization providing geotechnical construction services throughout the world. Web site address: http://www.keller.co.uk.

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