Section E4a, Greenbelt Route, Georgia Avenue - Petworth Station

Owner:	Washington Metropolitan Area Transit Authority
Client:
Service:	Waterproofing design and construction support services
Estimated cost:		Commencement:	December 28, 1994	Completion date:	December 28, 1997
Location:	Washington, DC United States
Technical data:	PVC membrane waterproofing Cut & Cover Station, including crossover, service rooms, ventilation structures, station entrances. Overall length: 1,090 ft (332 m); average depth: 75 ft (23 m); waterproofed area: 275,000 sqft (25550 m²).
Geology description:	Very compact light gray clayey or silty medium fine sand. Dark gray plastic clay. Light gray/green fine grained hornblende quartz diorite, highly weathered to slighty weathered.
Geology types:	Mixed face
Categories:	Waterproofing
Bid cost:		Final cost:	$1,200,000
Service areas:	Waterproofing & Water Control