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Stream Stability Study for Pipelines in High Consequence Areas

Learn about the importance of stream stability for pipelines in high consequence areas and how it can prevent potential problems. This study conducted by Larry Blair, PE of ESCAFCA in Sandoval County, New Mexico, covers methodologies like hydrologic and soil analysis to predict lateral and vertical movements. Conclusions suggest current standards may be inadequate.

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Stream Stability Study for Pipelines in High Consequence Areas

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  1. STREAM STABILITY STUDY FOR PIPELINES IN HIGH CONSEQUENCE AREAS By: Larry Blair, PE Eastern Sandoval County Arroyo Flood Control Authority (ESCAFCA) Sandoval County, New Mexico November 5, 2010

  2. COLORADO OK ARIZONA Placitas TEXAS

  3. A Little History • Sandia Mountains; Rio Grande River; Las Huertas Creek • Village of Placitas • Pipelines

  4. Purpose of Channel Stability Study • Preserve the natural state of the arroyo • Prevent potential problems with exposure of the pipeline

  5. Methodology • Hydrologic Analysis – 30 Years • 2 Yr • 5 Yr • 10 Yr • 25 Yr • 50 Yr • Plus 100 Yr Event • Soils Analysis • Predict Lateral and Vertical Movement

  6. Conclusions • Standards may not be adequate • Stream stability study may be a good tool

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