NORDIFLOW W, a fully structural liner system by NordiTube, was deployed under emergency conditions to rehabilitate a 16-inch sanitary sewer force main at Ronald Reagan Washington National Airport. The system delivered a fully structural, pressure-rated solution while maintaining continuous operation.
| Medium | Diameter | Project Length | Pipe Conditions | Rehabilitation Method |
| Sanitary sewer main | DN400 (16") | 302 meters (990 feet) | Immediate rehabilitation required due to risk of failure | NORDIFLOW W |
The sanitary sewer force main required immediate rehabilitation due to risk of failure. The system operates at 50 psi and is subject to significant external loading. Work had to be performed in a secure, active airport environment with zero disruption and continuous service.
Technology: CIPP (Cured-In-Place Pipe)
Product: NORDIFLOW W
NORDIFLOW W provided a fully structural pipe within the existing sanitary sewer force main. A total of 990 LF was rehabilitated in just 3 working days across three segments. A combination of water and air inversion methods was used to maximize efficiency, with select night work to minimize operational impact.
The project achieved zero disruption to airport operations while delivering a fully structural, pressure-rated pipeline capable of handling all internal and external loads. The rapid 3-day installation minimized risk and demonstrated NordiFlow W's effectiveness in emergency applications.
