NJ DOT's Proactive Approach to Reduced Underground Utility Damages Using IMU Mapping Tools

Due to aging and lack of accurate utility location information, there is significant underground congestion and conflict. This results in increased operational risk especially at waterway, transportation, and utility crossings. The IMU Mapping methods are able to mitigate these risks by providing accurate digital as-built positional data at trenchless crossings, constructed via HDD methods. Unlike other technology mapping solutions, which rely on sending signals below ground, in-line IMU Mapping tools are autonomous, providing high frequency XYZ GPS location information. 
The NJ DOT has a strategic objective to prevent excavation accidents caused by damaged underground utilities. Locating their existing underground utilities mitigates this risk and enables contractors to operate under safe conditions. PriSUM Technologies has been selected as a potential solution to identify the unlocatable utilities with in-line IMU mapping tools.
This presentation will present the NJ DOT & SUE approach to locating critical infrastructure water-main pipelines that connects the islands. This case study showcases the value and importance of accurately mapping underground utilities.