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At, DAB Inspection and Consulting Services LLC, we specialize and offer various capabilities in  Construction Quality Control Services, Construction Quality Assurance, Testing and Inspection, Geotechnical Investigations, Geotechnical Instrumentation Monitoring, Construction Management, Pre-Construction and Post-Construction Surveys.

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 Dulles Metrorail Phase-I Project – NATM Tunnel Design and Construction Quality Control

Dulles Metrorail Phase-I Project – NATM Tunnel Design and Construction Quality Control

MWAA, in cooperation with the Washington Metropolitan Area Transit Authority (WMATA), proposes to implement a 23.1-mile rapid transit system in the Dulles Corridor of Northern Virginia. The proposed corridor follows the alignment of the Dulles International Airport Access Highway (DIAAH) and the Dulles Toll Road within Fairfax County, and the Dulles Greenway, a private toll road in Loudoun County. The Project (Initial Operating Segment) undertook the construction of the initial 11.7 miles of the rail project from the existing Metrorail Orange Line just east of the West Falls Church (WFC) Station to a station constructed at Wiehle Avenue  

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