Reference List:

PROJECT LOCATION OWNER APPLICATION MATERIAL TYPE QTY (sf)
Reverse Curve Tunnel Glenwood Spgs, CO Colorado DOT Umbrella 60 mil non-reinforced PVC 50,000
LaSalle Tunnels Hyattsville, MD WMATA Closed 80 mil reinforced PVC 600,000
Greenbelt Tunnels College Pk, MD WMATA Closed 80 mil non-reinforced PVC 700,000
Lehigh Tunnel #2 Slatington, PA Pennsylvania Turnpike Comm. Umbrella 60 mil non-reinforced PVC 390,000
Hanging Lakes Colorado Colorado DOT Umbrella 60 mil non-reinforced PVC 180,000
Lafayette Tunnel Duluth, MN Minn. DOT Umbrella 60 mil non-reinforced PVC 85,000
Silver Cliff Tunnel Duluth, MN Minn. DOT Umbrella 60 mil non-reinforced PVC 145,000
Cumberland Gap Tunnel Middlesboro, KY US Dept. of Interior Umbrella 60 mil non-reinforced PVC 700,000
H3 Halawa Tunnels Oahu, HI Hawaii DOT Umbrella 60 mil non-reinforced PVC 540,000
Shot Tower Tunnels Baltimore, MD Maryland Trans. Closed 80 mil non-reinforced PVC and HDPE 100,000
Hoover Dam Shaft Boulder City, NV US Bureau of Reclamation Closed 60 mil non-reinforced PVC 27,000
Calumet Tunnels S. Holland, IL W. Rec. Dist of Chicago Closed 80 mil non-reinforced PVC 110,000
DART Tunnels Dallas, TX Dallas Area Rapid Transit Umbrella 60 mil non-reinforced PVC 1,000,000
B-251 Shaft Los Angeles, CA LA METRO Closed 60 mil XR5 15,000
Kanan Dume Tunnel Malibu, CA   Umbrella 60 mil non-reinforced PVC 20,000
Lehigh Tunnel Rehab. No. 1 Slatington, PA Pennsylvania Turnpike Comm. Umbrella 60 mil-reinforced PVC 150,000
WMATA B11a Wheaton, MD WMATA Umbrella 60 mil non-reinforced PVC 500,000
Glenmont Station Wheaton, MD WMATA Umbrella 100 mil non-reinforced PVC 200,000
Petworth Station Washington, D.C. WMATA Closed 100 mil non-reinforced PVC 300,000
Columbia Heights Washington, D.C. WMATA Closed 100 mil non-reinforced PVC 300,000
14th Street Tunnels Washington, D.C. WMATA Closed 80 mil non-reinforced PVC 235,000
14th Street Tunnels Washington, D.C. WMATA Closed 100 mil non-reinforced PVC 100,000
14th Street Tunnels Washington, D.C. WMATA Closed 120 mil reinforced PVC 110,000
Park Road Tunnels Washington, D.C. WMATA Closed 80 mil reinforced PVC 270,000
Park Road Tunnels Washington, D.C. WMATA Closed 100 mil non-reinforced PVC 90,000
Park Road Tunnels Washington, D.C. WMATA Closed 120 mil reinforced PVC 130,000
H3 Trans-Koolau Finish Contract Oahu, Hawaii Hawaii DOT Umbrella 60 mil non-reinforced PVC 240,000
Bunyard Tunnels Fort Smith, AR Arkansas DOT Umbrella 60 mil non-reinforced PVC 240,000
Berry St. Tunnels Pittsburgh, PA Penn DOT Umbrella 80 mil non-reinforced PVC 150,000
Congress Heights EPBM Tunnels Washington, D.C. WMATA Closed 80 mil non-reinforced PVC 230,000
Congress Heights EPBM Tunnels Washington, D.C. WMATA Closed 120 mil reinforced PVC 90,000
Cong. Hts. Sta. & NATM Tunnels Washington, D.C. WMATA Closed 80 mil non-reinforced PVC 180,000
Cong. Hts. Sta. & NATM Tunnels Washington, D.C. WMATA Closed 100 mil non-reinforced PVC 285,000
Mendenhall Glacier Juneau, AK USDA Umbrella 80 mil non-reinforced PVC 7,000
S. Boston Piers Transitway Contract SOCN09 Boston, MA MBTA Closed 100 mil non-reinforced PVC 65,000
S. Boston Piers Transitway Contract E02CN14 Boston, MA MBTA Closed/Partial 100 mil non-reinforced PVC 300,000
S. Boston Piers Transitway Contract E02CN14 Boston, MA MBTA Closed/Partial 80 mil Reinf.-Polypropylene 45,000
Rio Piedras Contract Rio Piedras, PR ACT Tren Urbano Closed 80 mil non-reinforced PVC 150,500
Rio Piedras Contract Rio Piedras, PR ACT Tren Urbano Closed 100 mil non-reinforced PVC 446,500
St. George Tunnel Rehabilitation New York, NY Staten Island Rapid Transit Closed 100 mil non-reinforced PVC 22,000
Dulles Airport Walkback Tunnel Dulles, VA Metropolitan Washington Airports Authority Closed 80 mil non-reinforced PVC 90,000
Dulles Airport Walkback Tunnel Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 30,000
Weehawken Tunnel Project North Bergen, NJ NJ Transit, Hudson Bergen Lt. Rail Project Umbrella 80 mil non-reinforced PVC 260,000
Weehawken Tunnel Project North Bergen, NJ NJ Transit, Hudson Bergen Lt. Rail Project Umbrella 100 mil non-reinforced PVC 60,000
Dulles Airport West Utility Building Tunnel Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 95,000
Dulles Airport APM West Tunnel Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 395,000
Dulles Airport APM East Tunnel Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 750,000
Dulles Airport Pedestrian Walkback Package Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 85,000
Dulles Airport Taxi Way F Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 195,000
South Boston Piers-Russia Wharf Boston, MA MBTA Closed 100 mil non-reinforced PVC 125,000
Pattiki Mine Shaft IL White County Coal Mine Closed 100 mil non-reinforced PVC 45,000
Beacon Hill Station Seattle, WA Sound Transit Closed 80 mil non-reinforced PVC 295,000
North Shore Connector North Side Station and Shell Pittsburgh, PA Port Authority of Allegheny County Closed and Open 100 mil non-reinforced PVC and 80 mil FPO 205,750 and 83,900
Dulles Airport 4th Runway Dulles, VA Metropolitan Washington Airports Authority Closed 100 mil non-reinforced PVC 32,400
Brightwater Conveyance System Control Kenmore, WA King County Dept of Natural Resources and Parks Wastewater Treatment Division Closed 80 mil non-reinforced PVC 27,540
Harlem River Tunnel Bronx, NY Con Edison Closed 100 mil non-reinforced PVC 84,500
North Shore Connector Gateway Station Shell Pittsburgh, PA Port Authority of Allegheny County Closed 100 mil non-reinforced PVC 93,000
Devils Slide Tunnel Montara, CA State of CA Dept of Transportation (Caltrans) Open 80 mil non-reinforced and 80 mil reinforced PVC 710,000 and 31,100
No. 7 (Flushing) Line Extension 34th St. Station New York, NY MTACC/NYCTA Open 100 mil non-reinforced PVC 330,600
Dulles Corridor Metrorail Tunnels Tysons Corner, VA MWAA/DTP Closed 100 mil non-reinforced PVC 213,100
No. 7 (Flushing) Line Extension Site L Ventilation Structure and Cross Passage New York, NY MTACC/NYCTA Closed 80 mil non-reinforced PVC 68,800
Second Avenue Subway Rt. 132A Tunnels 92nd to 63rd Sts. New York, NY MTACC/NYCTA Closed 80 mil non-reinforced PVC 365,800
East Side Access Manhattan Tunnels Contract CM009 New York, NY MTACC/LIRR Closed 100 mil non-reinforced PVC 324,400
East Side Access Manhattan Structures 1 Contract CM019 New York, NY MTACC/LIRR Open and Closed 100 mil non-reinforced PVC 310,800