U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

PHMSA Collection

rosaP Repository & Open Science Access Portal

This collection includes the final project reports from the Pipeline and Hazardous Material Safety Administration (PHMSA) Office of Pipeline Safety (OPS) research program. The PHMSA pipeline research mission is to sponsor research and development projects focused on providing near-term solutions for the Nation’s pipeline transportation system that will improve safety, reduce environmental impact, and enhance reliability. Additional information on the program may be found here: https://www.phmsa.dot.gov/research-and-development/pipeline/about-pipeline-research-development Bookmark this collection: https://rosap.ntl.bts.gov/collection_phmsa or https://doi.org/10.21949/1530847.

(4)
(2)
(10)
(6)
(10)
(19)
(7)
(5)
(2)
(4)
(1)
(3)
(11)
(18)
(13)
(15)
(9)
(4)
(2)
(2)
(1)
0 of 21
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(3)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(4)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(2)
0 of 249
(5)
(1)
(2)
(1)
(1)
(1)
(111)
(26)
0 of 8
(1)
(1)
(1)
(27)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0 of 111
(1)
(27)
0 of 2
(1)
(1)
(1)
(2)
(1)
(4)
(1)
(2)
(2)
(3)
(1)
(4)
(2)
(4)
(1)
(2)
(4)
(1)
(3)
(1)
(9)
(1)
(1)
(2)
(1)
(16)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(5)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(1)
(1)
(27)
(2)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(7)
(1)
(2)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
0 of 81
(1)
(4)
(1)
(3)
(1)
(2)
(1)
(2)
(9)
(8)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(3)
(2)
(1)
(4)
(1)
(2)
(4)
(2)
(2)
(1)
(2)
(77)
(2)
(4)
(1)
(1)
(1)
0 of 34
(1)
(1)
(3)
(3)
(1)
(2)
(2)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(1)
(1)
(3)
(1)
(1)
(2)
(3)
(4)
(1)
(8)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(11)
(1)
(21)
(5)
(4)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(22)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(4)
(1)
(1)
(4)
(5)
(7)
(2)
(2)
(1)
(1)
(2)
(2)
(2)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(2)
(3)
(2)
(1)
(3)
(3)
(1)
(4)
(1)
(1)
(1)
(2)
(4)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(8)
(1)
(1)
(9)
(2)
(1)
(27)
(2)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(2)
(2)
(1)
(1)
(14)
(2)
(2)
(11)
(1)
(1)
(1)
(6)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(11)
(1)
(2)
(4)
(15)
(3)
(1)
(1)
(8)
(2)
(4)
(1)
(1)
(1)
(4)
(2)
(1)
(2)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(25)
(4)
(1)
(2)
(2)
(1)
(1)
(3)
(13)
(1)
(1)
(4)
(3)
(9)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(5)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(29)
(1)
(2)
(1)
(2)
(3)
(1)
(2)
(1)
(1)
(3)
(1)
(2)
(4)
(1)
(1)
(2)
(28)
(1)
(7)
(1)
(2)
(1)
(3)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(12)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(4)
(1)
(3)
(1)
(5)
(2)
(1)
(8)
(1)
(1)
(79)
(1)
(15)
(1)
(4)
(1)
(1)
(6)
(1)
(1)
(1)
(2)
(1)
(28)
(1)
(2)
(1)
(1)
(1)
(1)
(13)
(2)
(6)
(3)
(4)
(1)
(28)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(2)
(2)
(2)
(2)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(73)
(1)
(3)
(1)
(1)
(1)
(2)
(34)
(4)
(2)
(3)
(1)
(1)
(4)
(2)
(7)
(2)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(16)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(3)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(13)
(1)
(1)
(1)
(16)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(6)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(4)
(1)
(20)
(20)
(20)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(1)
(2)
(7)
(1)
(1)
(1)
(1)
(1)
(7)
(1)
(7)
(1)
(1)
(1)
(1)
0 of 465
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(6)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(4)
(1)
(2)
(3)
(5)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
0 of 95
Showing 81 - 100 of 148 results
  • Effect of Concentration and Temperature of Ethanol in Fuel Blends on Microbial and Stress Corrosion Cracking of HighStrength Steel
    Effect of Concentration and Temperature of Ethanol in Fuel Blends on Microbial and Stress Corrosion Cracking of High-Strength Steel
    Jain, Luke ;
    Mishra, Brajendra
    2012-02-01 | PDF
    Localized environments in fuel grade ethanol (FGE) transportation systems, where conditions are suitable for growth, may allow for microbiologically influenced corrosion (MIC) of steel components. Interstate pipeline transportation of ethanol fuels increases the potential impact of a MIC related failure. A laboratory MIC investigation is presented ...
  • Dent Fatigue Life Assessment Development of Tools for Assessing the Severity and Life of Dent Features
    Dent Fatigue Life Assessment: Development of Tools for Assessing the Severity and Life of Dent Features
    Semiga, Vlad
    2012-01-10 | PDF
    Federal regulatory standards require repair of dents with depths exceeding 6% of the pipeline diameter and for dents exhibiting signs of mechanical damage interacting with secondary features. However, leaks have been known to occur at dents with depths less than 3% of the pipe diameter and dents interacting with secondary features have been known t ...
    Supporting Files
  • Optimization of MultiWire GMAW Welding Procedure for HeavyWall Offshore Pipeline Construction
    Optimization of Multi-Wire GMAW Welding Procedure for Heavy-Wall Offshore Pipeline Construction
    Chen, Yaoshan
    2012-01-06 | PDF
    The U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration (DOT/PHMSA), in a communication with the Center for Reliable Energy Systems (CRES) on July 27th of 2011, decided to terminate the project. Besides the project management activities, only part of the technical activities of Task 2 was performed. This final ...
  • Internal Corrosion Detection in Liquids Pipelines
    Internal Corrosion Detection in Liquids Pipelines
    Sabata, Ashok
    2012-01-01 | PDF
    PHMSA project DTRS56-05-T-0005 "Development of ICDA for Liquid Petroleum Pipelines" led to the development of a Direct Assessment (DA) protocol to prioritize locations of possible internal corrosion. The underlying basis LP-ICDA is simple; corrosion in liquid petroleum systems is most likely where water and/or solids accumulate. Despite the develop ...
  • Weld Design Testing and Assessment Procedures for High Strength Pipelines
    Weld Design, Testing, and Assessment Procedures for High Strength Pipelines
    Wang, Yong-Yi ;
    Zhou, Honggang (Michael)
    2011-12-20 | PDF
    Long-distance high-strength pipelines are increasingly being constructed for the efficient transportation of energy products. While the high-strength pipeline steels and high productivity welding processes are being applied, the procedures employed for pipeline property specification, welding procedure qualification, and weld integrity assessment r ...
  • Validation for Flaw Acceptance of Mechanical Damage to Low Stress Natural Gas Pipelines
    Validation for Flaw Acceptance of Mechanical Damage to Low Stress Natural Gas Pipelines
    Farrag, Khalid ;
    Francini, Robert
    2011-12-01 | PDF
    The objective of the research project is to provide pipeline operators with a decision‐making tool regarding the repair options to pipeline’s mechanical damage. The research project addresses the gas pipelines operating at stress levels below 40% of their Specified Minimum Yield Strength (SMYS). The testing program evaluated a wide range of pipes a ...
  • GPSBased Excavation Encroachment Notification
    GPS-Based Excavation Encroachment Notification
    Farag, Alicia
    2011-10-31 | PDF
    Excavation damage is the primary threat to the integrity of the natural gas distribution system. According to the Common Ground Alliance, the two primary root causes of excavation damage are failure to notify the one-call center and careless excavation near utility lines. The objective of this project was to develop and demonstrate a GPS-based syst ...
  • Stress Corrosion Cracking of Pipeline Steels in Fuel Grade Ethanol and Blends Study to Evaluate Alternate Standard Tests and Phenomenological Understanding of SCC
    Stress Corrosion Cracking of Pipeline Steels in Fuel Grade Ethanol and Blends - Study to Evaluate Alternate Standard Tests and Phenomenological Understanding of SCC
    Singh, Preet M.
    2011-10-30 | PDF
    Main aim of this project was to evaluate alternate standard test methods for stress corrosion cracking (SCC) and compare them with the results from slow strain rate test (SSRT) results under equivalent environmental conditions. Other important aim of this project was to develop an phenomenological understanding of SCC of pipeline steels in fuel gra ...
  • Development of Tools to Estimate Actual Corrosion Growth Rates of Gas Pipelines
    Development of Tools to Estimate Actual Corrosion Growth Rates of Gas Pipelines
    Song, Frank
    2011-10-01 | PDF
    Both external and internal corrosion of gas pipelines can pose threats to pipeline safety by thinning the pipe wall, leading to leaks or ruptures. To ensure the pipeline safety, it is important to know both pipeline internal and external corrosion rates. In an earlier Pipeline and Hazardous Materials Safety Administration (PHMSA)-funded project (DT ...
  • Development of Optimized Welding Solutions for X100 Linepipe Steel
    Development of Optimized Welding Solutions for X100 Linepipe Steel
    Quintana, M. A. ;
    Hammond, J.
    2011-09-01 | PDF
    This investigation is part of a major consolidated program of research sponsored by the US Department of Transportation (DOT) Pipeline Hazardous Materials Safety Administration (PHMSA) and the Pipeline Research Council International (PRCI) to advance weld design, establish weld testing procedures, improve assessment methodologies, and develop optim ...
  • Second Generation Models for StrainBased Design
    Second Generation Models for Strain-Based Design
    Wang, Yong-Yi ;
    Liu, Ming
    2011-08-30 | PDF
    This project covers the development of tensile strain design models which form a key part of the strain-based design of pipelines. The strain-based design includes at least two limit states, tensile rupture, and compressive buckling. The tensile strain limit state is considered as an ultimate limit state in pipeline design. The breach of the limit ...
  • Landfill and Wastewater Treatment RNG Chemical and Physical Profiling Increasing the Database Set
    Landfill and Wastewater Treatment RNG Chemical and Physical Profiling: Increasing the Database Set
    Crippen, Karen ;
    Ferrer, Monica
    2011-08-15 | PDF
    The purpose of this USDOT PHMSA sponsored research project was to address the continued development of a draft guidance document for the safe introduction of renewable gas into natural gas pipelines. This project was designed to build upon previous studies executed by GTI to further characterize and understand the chemical and biological compositio ...
  • Acousticbased Technology to Detect Buried Pipes
    Acoustic-based Technology to Detect Buried Pipes
    Kothari, Kiran ;
    Wu, Ching-Chen
    2011-07-29 | PDF
    The objective of this project is to build a pre-commercial device, improve its performance to detect multiple buried pipes, and evaluate the pre-commercial device at utility sites. In the past, Gas Technology Institute (GTI) and SoniVerse Inc. (SVI) with support from Operations Technology Development, NFP (OTD) have developed an acoustic-technology ...
  • Broadband Electromagnetic Technology
    Broadband Electromagnetic Technology
    Ziolkowski, Christopher ;
    Roubal, Martin
    2011-06-23 | PDF
    The objectives of this project are to continue the enhancements to the combined Broadband Electromagnetic and Full Encirclement Unit (BEM-FEU) technologies and to evaluate the system’s capability in the laboratory and the field. The BEM instrument can, with proper calibration, estimate the condition of metal pipe walls without the need to remove co ...
  • Achieving Maximum Crack Remediation Effect from Optimized Hydrotesting
    Achieving Maximum Crack Remediation Effect from Optimized Hydrotesting
    Chen, Weixing
    2011-06-15 | PDF
    This project developed and validated models that will allow the industry to predict the overall benefits of hydrotests. Such a prediction is made with a consideration of various characteristics of a pipeline including the type of operation, stage of cracking, environmental susceptibility, steel metallurgy, and operation history. When hydrotesting i ...
  • Development of a Commercial Model to Predict Stress Corrosion Cracking Growth Rates in Operating Pipelines
    Development of a Commercial Model to Predict Stress Corrosion Cracking Growth Rates in Operating Pipelines
    Song, Frank ;
    Lu, Baotong
    2011-06-01 | PDF
    Stress corrosion cracking (SCC) in pipelines occurs under two broad pH conditions— alkaline pH and near-neutral pH. SCC can lead to leaks, sudden bursts, or explosions of gas and liquid pipelines. Crack growth rate (CGR) is a critical parameter to be considered when the inspection interval for in-line inspection (ILI) or pressure test, or the reass ...
  • Design Construction and Demonstration of a Robotic Platform for the Inspection of Unpiggable Pipelines under Live Conditions 146
    Design, Construction and Demonstration of a Robotic Platform for the Inspection of Unpiggable Pipelines under Live Conditions (#146)
    D'Zurko, Daphne ;
    Vradis, George
    2011-05-01 | PDF
    The objective of this project was to develop two robotics platforms, named Explorer II and TIGRE, which equipped with Non Destructive Evaluation (NDE) sensors would be able to provide In-line Inspection (ILI) of unpiggable natural gas transmission pipelines. Explorer II is a tool for the inspection of 6” – 8” pipelines with pressures up to 750 psig ...
  • Advanced Technologies and Methodology for Automated Ultrasonic Testing Systems Quantification
    Advanced Technologies and Methodology for Automated Ultrasonic Testing Systems Quantification
    Spencer, Roger ;
    Todorov, Evgueni
    2011-04-29 | PDF
    For automated ultrasonic testing (AUT) detection and sizing accuracy, this program developed a methodology for quantification of AUT systems, advancing and quantifying AUT systems image capture capabilities, quantifying the performance of multiple AUT systems, establishing a guidance document, conducting field tests, and delivering a guidance docum ...
  • Effect of Ethanol Chemistry on SCC of Carbon Steel
    Effect of Ethanol Chemistry on SCC of Carbon Steel
    Sridhar, Narasi
    2011-02-22 | PDF
    Pipeline companies have a keen interest in assessing the feasibility of transporting fuel grade ethanol (FGE) and ethanol blends in existing pipelines. Previous field experience and laboratory research, funded by PRCI and API, has shown that steel can suffer stress corrosion cracking (SCC) when exposed to FGE in the presence of oxygen. Though crack ...
  • Monitoring Conditions Leading to SCCCorrosion of Carbon Steel in Fuel Grade Ethanol
    Monitoring Conditions Leading to SCC/Corrosion of Carbon Steel in Fuel Grade Ethanol
    Sridhar, Narasi
    2011-02-11 | PDF
    Pipeline companies have a keen interest in assessing the feasibility of transporting fuel grade ethanol (FGE) and ethanol blends in existing pipelines. A 2003 survey of industry, reported in API Technical Report 939-D (2nd edition), indicates that stress corrosion cracking (SCC) has been observed primarily in user terminals exposed to ethanol produ ...
81 - 100 / 148