Missouri Seismic Safety Commission - Strategy 2.8
STRATEGY:
Conduct critical lifeline co-location vulnerability studies.
ACTION:
Identify lifeline co-location sites in earthquake-prone
areas where the hazard of ground failure is
high and where vulnerable structures support co-located
lifelines; develop a mitigation plan for each one.
Encourage equipment improvement, facility redundancy and relocation, and
pre-event response and recovery agreements.
RESULT:
During an earthquake emergency, damage to one lifeline
will not cripple an adjacent lifeline, when the recognized hazard is
anticipated and accommodated.
Background
In many locations, various lifelines, including pipelines, rail, highway,
electric, and communications, are located within close proximity of each
other, either in defined corridors or at crossings. Seismic damage to one
lifeline may easily impact adjacent lifelines. An example would be an
interstate pipeline crossing. The failure of a single lifeline may be repaired
within a reasonable time, but the failure of two (or more) adjoining lifelines
could pose complex repair problems. Significant delays may result from
the complexity of repairs, slowing the operational return of vital public
services essential to public health and safety.
Implementation
Undertake studies to identify all critical co-location sites within
earthquake-prone areas. Establish a task force of public and private
lifeline operators
to estimate the potential impacts
from damage to adjacent lifelines on their systems.
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Responsible Agencies:
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State Emergency Management Agency, Department of Public Safety (SEMA-DPS)
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Missouri Department of Transportation (MoDOT)
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Division of Geology and Land Survey, Department of Natural Resources (DGLS-DNR)
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Public Service Commission
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Municipal and private utilities, railroads, and pipeline operators
Last Changed April 28, 1997