PROJECT CASE STUDY upport of excavations in ur- ban areas can be extremely challenging. The placement of external support components, such as an- chors or soil nails in right -a-ways and subway utility setbacks, must be precise to avoid the disruption of existing, adjacent structures. In 2006, construction began on Abingdon Heights (now known as Vista on Courthouse,) an 11-story condominium complex located in the heart of Arlington, Virgin

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