References

American Gas Association (AGA), “Directional Drilling Damage Prevention Guidelines for the Natural Gas Industry,” Technical Note, December 30, 2004.
American Society of Civil Engineers, ASCE Manuals and Reports on Engineering Practice No. 89, “Pipeline Crossings,” 1996.
Bennett, R.D., S.T. Ariaratnam, and C. Como, “Horizontal Directional Drilling Good Practices Guidelines,” HDD Consortium, Washington, DC, ISBN 1-928984-13-4, 2001.
California Department of Transportation, CALTRANS, “CALTRANS Encroachment Permits—Guidelines and Specifications for HDD Installations,” July 14, 2003.
Directional Crossing Contractors Association (DCCA), “Guidelines for Successful Directional Crossing Survey Standards,” Dallas, TX, 1999.
Directional Crossing Contractors Association (DCCA), “Horizontal Drilling Safe Operations Guidelines,” Dallas, TX, 1995.
Gas Research Institute, “Final Report—Guideline for the Application of Guided Horizontal Drilling to Install Gas Distribution Piping,” GRI-96-0368, September 1996.
National Transportation Safety Board, “Safety Study: Protecting Public Safety Through Excavation Damage Prevention,” Washington, DC, December 1999.
National Utility Contractors Association (NUCA), “Trenchless Construction Methods and Soil Compatibility Manual,” 3rd Edition, Washington, DC.
National Utility Locating Contractors Association (NULCA), “Excavation Practices & Procedures for Damage Prevention,” Spooner, WI, 1996.

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