Supplementary Subsurface Investigation Section D011g, New Carrollton Traction Power Substation

摘要

Results are summarized of five supplementary test borings made to investigate subsurface conditions at the location of the planned traction power substation located in the New Carrollton Storage Yard in Section D011g of the Washington Metropolitan Area Metro System. The report contains geological sections which summarize information from the borings, logs of borings, results of laboratory tests performed on samples recovered and text describing design and construction problems.