New Jersey Dept. of Transportation, Bureau of Research2012-06-012012-06-012011-06974.90 T764 2011Khttp://hdl.handle.net/10929/19809FHWA-NJ-2011-001en-USUnderground conduitTrace WireAcoustic TransmissionGround Penetrating RadarInnovative and Effective Techniques for Locating Underground ConduitsState Publication