{"operation":"document","citation":"PI-76-067","title":"U.S. Department of the Army — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1976-10-14","effective_on":null,"summary":"PI-76-067 response to U.S. Department of the Army concerning 192.327, 195.110, 195.246.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-067.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-067.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-067","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1976/PI76067.pdf","body":"<<<PAGE 1>>>\n\nMr. J. E. Pate, Jr.\nChief, Permit Branch\nGalveston District, Corps of Engineers\nU.S. Department of the Army\nP.O. Box 1229\nGalveston, TX 77553\nAttention: SWGCO, Permit Application 11432\nDear Mr. Pate:\nYour letter of July 28, 1976, requests comment on the information provided by Transcontinental\nGas Pipe Line Corporation (Transco) in their permit application number 11432. This application\nproposes to install an addition to a pipeline system to transport natural gas from existing wells in\nthe Gulf od Mexico, Galveston, and High Island areas.\nAll pipelines subject to the jurisdiction of this Office must comply with the requirements of 49\nCFR Part 192, \"Transportation of Natural and Other Gas by Pipeline,\" or 49 CFR Part 195,\n\"Transportation of Liquids by Pipeline.\" Amendments 192-27 and 195-11 were recently issued to\nthese minimum Federal safety standards to provide more comprehensive standards for offshore\nfacilities.\nSections 192.327 for gas pipelines and 195.248 for liquid pipelines require that all pipe installed in\nany offshore location under water less than 12 feet deep must have a minimum cover of 36 inches\nin soil or 18 inches in consolidated rock between the top of the pipe and the natural bottom.\nSections 192.319 and 195.246 require offshore pipe in water at least 12 feet deep but not more\nthan 200 feet deep to be installed so that the top of the pipe is below the natural bottom unless it\nis supported by stanchions, held in place by anchors or heavy concrete coating, or protected by an\nequivalent means. These are minimum requirements intended to be used in normal situations and\ndo not necessarily provide the protection needed from special hazards that may be encountered in\nshipping lanes or anchorages.\nPart 192, Section 192.103, General, requires that pipe must be designed with sufficient wall\nthickness, or must be installed with adequate protection, to withstand anticipated external\npressures and loads that will be imposed on the pipe after installation. Part 195, Section 195.110,\nExternal loads, requires that anticipated external loads (e.g., earthquakes, vibration, thermal\nexpansion and contraction) must be provided for in designing a pipeline system.\nDB\nC:\\WP51\\INTERPRT\\192\\327\\76-10-14\n1\n\n<<<PAGE 2>>>\n\nthe information provided in your letter does not include the characteristics of the sea bottom nor\nany description of external stresses from ship anchors or other causes that might be anticipated for\nthe pipelines in this area. The regulations require adequate protection for the pipeline; however,\nthey do not specify the type of protection. Additional depth of burial is one way of providing that\nprotection if the additional depth is sufficient for the anticipated stresses or loads.\nIt is hoped that these comments will be helpful in your consideration of the Transco permit.\nThank you for you interest in pipeline safety.\nSincerely,\nCesar DeLeon\nActing Director\nOffice of Pipeline\nSafety Operations\nDB\nC:\\WP51\\INTERPRT\\192\\327\\76-10-14\n2","truncated":false,"body_characters":3009}