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Atlanta-Based Helical Pile Contractor Saves the Day for a Super Fast Track Football Stadium Project in Douglasville, GA


July, 2010

Extreme Technologys

4501 Industrial Access Road

Douglasville, GA 30134

770-942-6262

www.extremetechnologys.com

Project Name & Location:
Alexander High School Stadium, Douglasville, GA
Project Date:
July 2010
Project Type:
98 Helical Piles and Anchors were used for new foundation, new bleachers and retaining wall - after underpinning press box with 11 push piles
Helical Pile Installation &
Foundation Contractor:
Site Work Contractor:
Engineering Companies:
Bleacher Contractor:

 Extreme Technologys, Douglasville, GA
Carr Construction, Douglasville, GA
Southern A&E, Atlanta, GA & Magnum Geo Solutions, Fort Collins, CO
Southern Bleachers, Graham, TX
Helical Piles Specifications:
73 Compression Piles; 25 Tieback Anchors; 20 ft. Avg Depth, 3.0” dia, Magnum 313B, 313BR, 325B, 325BR with 2-4 Helicies per Pile, Non-Galvanized
Soils & Embedment Depth:
Sandy Soils with some Clay and Rock Fragments; Blow Counts Ranged from 2 to 50 b.p.f.; 20 ft. Average Embedment Depth
Project Timeline:
14 Weeks - including demolition, design and construction
Helical Pile Manufacturer:
Magnum Piering, Inc.., Cincinnati, OH

Project Overview

Severe flooding in September 2009 - 27 inches of rain fell in 9 hours - caused massive erosion beneath the concrete bleacher structure for the football stadium.  In May 2010, just two weeks prior to graduation ceremonies, which traditionally were held at the stadium, the stadium was condemned when the severity of erosion was discovered.  The ceremonies were held at a different location, and school administrators were faced with a very difficult and demanding project - 14 weeks for demolition, design and reconstruction of the stadium.  School administrators decided to GC the project and hire the necessary engineering, contracting and fabricating companies to complete the various phases of the project.


#1

The existing press box was stabilized using 11 push piles prior to excavation and construction of the new retaining wall.

Both compression piles and tieback anchors were installed to support the retaining wall.

#2

Vertical compression piles and battered piles were installed to support the bottom row of the bleachers for additional lateral support.

The second and third rows required vertical compression piles only.

#3

Extreme Technologys contracted to pour the pile caps and set the anchor bolts for connection to the bleacher support beams.  5000 psi concrete was used, and the anchor bolt placement specification was +/- one tenth of an inch.

#4

Although these photos show work in progress, the project was completed in just under 14 weeks in time for the opening football game of the 2010 season.