Blount's Mini Excavator Working on Beam and Lagging



What could be more challenging than excavating and shoring an entire city block in the middle of downtown Phoenix? Add in an existing 3 level below grade parking garage that has to be demolished during the construction of the new basement: that is how! Block 23 is a mixed-use commercial/residential tower rising in the middle of the city. This project required innovative solutions to retain the earth during the excavation of the new garage. One solution was to utilize two walls of the existing basement as shoring for the new basement construction. This was accomplished by utilizing specialty drilling equipment to tieback the existing walls prior to demolition. Months of careful planning, engineering, and scheduling allowed for successful project execution. Poor site soils, the presence of a large diameter underground water tunnel, and coordinating with the demolition contractor did not stop us from completing this project.  Our team worked hard to meet the needs of our client.  By project completion it was evident that their efforts had paid off.
RED Development, Whiting-Turner
Type of Project
Earth Retention, Mass Excavation
Scoped Performance
Specialty drilling, foundations work, shoring
Completion Date
February 2018
Equipment Moving Dirt at Project Site
Block 23 Project Site
Excavators and Bulldozers on Site of the Block 23 Project at Night
Excavation and Shoring at the Block 23 Project
Earth Retention Work at the Block 23 Project
Blount Employee Leveling Dirt at Project Site
Excavator Transported by Heavy Crane at Project Site

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