As part of the DC Clean Rivers Project ? Division 1 Main Pumping Station Diversions, the Tiber Creek trunk sewer was designated to receive a new structural liner in a 122 ft (37 m) section near the intersection of New Jersey Ave. and Tingey St. in southeast Washington, DC.
Queens Midtown Tunnel Rehabilitation
The Queens Midtown Tunnel (QMT) is a twin-tube, tolled, four-lane highway that serves over 90,000 vehicles each day.
Tunnel Shotcrete Lining for Hydroelectric Projects
In British Columbia (BC), Canada, the primary source of power supply is hydroelectricity.
Structural Modifications to Hydroelectric Turbine Draft Tube Ceiling
The U.S. Army Corps of Engineers (USACE) is engaged in structural modifications to the reinforced concrete draft tube exits from the turbines in the Ice Harbor Lock and Dam located on the Snake River near Burbank, WA.
Flood Control Channels Made with Shotcrete
Flooding is a temporary overflow of water onto land that is normally dry. Floods are the most common natural disaster in the United States.
The Outstanding Repair & Rehabilitation Project
The Outstanding Underground Project
Overhead Shooting against PVC Membrane
Overhead shotcrete application against any substrate is challenging. Shooting against a polyvinyl chloride (PVC) membrane waterproofing system increases the difficulty and danger of the process.
Shotcreting the East Side Access Program
Prior to 9/11, all structural wall and tunnel concrete applications in New York, NY, used the form-and-pour concrete placement method.
Shotcrete Lining Innovations in the United States
Historically, the permanent concrete linings for underground structures have been installed using form-and-pour methods but the use of shotcrete or sprayed concrete for the structural linings is becoming increasingly more common.