SUPPLEMENTARY SUBSURFACE INVESTIGATION, GREENBELT ROUTE, SECTIONS E004 AND E005

Results are summarized of a group of twelve deep test borings of the Washington Metropolitan Area Metro system made in the general area of Fort Totten Park and Station. The exploration was carried out to investigate conditions at deep tunnel alternatives in an area where Cretaceous soils lie directly above weathered bedrock. The report includes geological sections taken along the line of the proposed subway structures through the new borings, logs of the test borings, results of laboratory tests on soil samples and comments on potential design and construction problems for the alternative tunnel locations.

• Corporate Authors:

  Washington Metropolitan Area Transit Authority

  600 Fifth Street, NW
  Washington, DC  United States  20001
• Publication Date: 1979-8-15

Media Info

• Pagination: 59 p.

Subject/Index Terms

• TRT Terms: Boring; Excavation and tunneling; Foundations; Geological surveying; Metropolitan areas; Rock mechanics; Routes; Subways; Underground structures
• Geographic Terms: Maryland; Virginia; Washington (District of Columbia)
• Old TRIS Terms: Subway railways
• Subject Areas: Bridges and other structures; Construction; Public Transportation;

Filing Info

• Accession Number: 00317931
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MRJD-79-162
• Contract Numbers: WMATA-3Z725R
• Files: TRIS
• Created Date: Jul 22 2002 12:00AM