[et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” _builder_version=”4.16″ _module_preset=”default” positioning=”none” horizontal_offset_tablet=”” horizontal_offset_phone=”” horizontal_offset_last_edited=”on|tablet” custom_margin=”0px||||false|false” custom_margin_tablet=”” custom_margin_phone=”” custom_margin_last_edited=”on|desktop” custom_padding=”0px|||0px|false|false” custom_padding_tablet=”|||25px|false|false” custom_padding_phone=”” da_disable_devices=”off|off|off” global_colors_info=”{}” custom_padding__hover_enabled=”on|desktop” custom_padding__hover=”0px|||0px|false|false” theme_builder_area=”post_content” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.16″ _module_preset=”default” width=”100%” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n
<\/span><\/p>\n Criticality is a risk\u00a0assessment\u00a0process. The overall risk is\u00a0determined\u00a0by the probability of failure and the consequence of failure. The assets that have the greatest probability of failure and the greatest consequences due to failure will be the assets that are the highest risk and therefore the most critical. The assets that have low likelihood of failure and low consequences if there is a failure will be the least critical assets.\u00a0<\/span>\u00a0<\/span><\/p>\n To calculate the criticality score for a given asset, multiply its\u00a0<\/span>probability of failure rating<\/span>\u00a0by its\u00a0<\/span>consequence of failure rating<\/span>.<\/span>\u00a0<\/span><\/p>\n <\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/swefc.unm.edu\/iamf\/wp-content\/uploads\/2026\/04\/calculatingcrit_drawing.png” title_text=”calculatingcrit_drawing” _builder_version=”4.27.6″ _module_preset=”default” width=”70%” module_alignment=”center” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_image][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]<\/p>\n <\/p>\n The criticality of assets changes over time.\u00a0It is necessary to periodically review\u00a0the\u00a0criticality\u00a0scores of assets and adjust to account for changing circumstances and asset decay. The following are examples of what could influence a change in your assets\u2019\u00a0criticality\u00a0score.<\/span>\u00a0<\/span><\/p>\n It is advised to\u00a0review the criticality of all assets annually, but if a complete review and revision is not practical given available resources,\u00a0staff should focus on reassessing the criticality of assets that are known to have experienced some type of\u00a0significant change\u00a0or event. For\u00a0example, if an asset that was critical primarily due to its probability of failure is replaced with a new asset, the criticality score for the replacement asset will be lower and\u00a0records\u00a0should be updated\u00a0to reflect both the new asset and its lower probability of failure.\u00a0Another example is\u00a0installing a new asset\u00a0to add\u00a0<\/span>redundancy<\/span>\u00a0to the system. The consequence rating associated with related assets should be lowered because adding redundancy reduces the consequences of those assets failing. Any changes like these should prompt an update to the\u00a0criticality\u00a0scores of impacted assets.<\/span>\u00a0<\/span><\/p>\n Once the criticality score is calculated for all assets, system staff should evaluate the data and create a prioritization framework or a risk response plan. A risk response plan delineates levels of risk tolerance and\u00a0identifies\u00a0the risk mitigation options that are most effective and suitable for the system. A complete risk plan\u00a0should:<\/span>\u00a0<\/span><\/p>\n Special attention should be given to areas in the system where multiple critical assets exist\u00a0at\u00a0the same location. The impacts of one critical asset failing in those areas will have heightened impact due to the proximity to other critical assets, including those of another asset type.\u00a0<\/span>GIS<\/span>\u00a0is a useful tool to spatially\u00a0identify\u00a0high-concentration locations of critical assets, and this can then be factored into the prioritization framework for each asset type.\u00a0<\/span>Visualizing criticality scores<\/span>\u00a0with a matrix is also a useful tool, especially when discussing the criticality of assets with stakeholders who were not part of the process. Additionally, systems can\u00a0pick\u00a0a threshold criticality score which they can use to define which assets are eligible for funding for inspection\u00a0or\u00a0repair or replacement projects. When selecting a threshold score,\u00a0staff\u00a0should pay close\u00a0attention\u00a0to the availability of condition data and the distribution of risks. If\u00a0additional\u00a0data becomes available, especially condition data, these risk score thresholds should be re-evaluated. The criticality score, along with the asset\u2019s condition rating and estimate of useful life, should be used to prioritize assets for repair, replacement, or upgrade. The main point is that there is not a \u201cright\u201d response for each asset. Each case must be considered individually to\u00a0determine\u00a0the correct response for the given situation.<\/span>\u00a0<\/span><\/p>\n Risk mitigation options can be more complex and harder to implement for green assets because they are often owned,\u00a0managed\u00a0or accessed by third parties. Gray assets such as pipes are owned and managed by a\u00a0utility, and\u00a0they\u00a0have\u00a0direct control over the mitigation options (i.e., repair, replacement,\u00a0rehabilitation\u00a0etc.). Green assets, such as a green roof or a forest, are\u00a0likely not\u00a0owned by the system and may involve several outside entities to implement any mitigation strategies. Partnerships with external parties who own,\u00a0manage\u00a0or have access to green assets are vital to ensure risk mitigation plans are effective and can move forward smoothly.<\/span>\u00a0<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” width=”100%” locked=”off” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]<\/p>\n PoFProbability of Failure<\/span><\/span><\/span> and CoFConsequence of Failure<\/span><\/span><\/span> of steel water pipes – Frank Roth, Sr. Policy Manager, Chair of AM Steering Committee, Albuquerque Bernalillo County Water Utility Authority, Albuquerque, NM<\/p>\n [\/et_pb_text][et_pb_video src=”https:\/\/youtu.be\/Wkw9Cxy9ge0″ _builder_version=”4.16″ _module_preset=”default” border_radii=”on|25px|25px|25px|25px” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_video][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" Calculating Criticality Criticality is a risk\u00a0assessment\u00a0process. The overall risk is\u00a0determined\u00a0by the probability of failure and the consequence of failure. The assets that have the greatest probability of failure and the greatest consequences due to failure will be the assets that are the highest risk and therefore the most critical. The assets that have low likelihood of failure and low consequences if there is a failure will be the least critical assets.\u00a0\u00a0 To calculate the criticality score for a given asset, multiply its\u00a0probability of failure rating\u00a0by its\u00a0consequence of failure rating.\u00a0 The criticality of assets changes over time.\u00a0It is necessary to periodically review\u00a0the\u00a0criticality\u00a0scores of assets and adjust to account for changing circumstances and asset decay. The following are examples of what could influence a change in your assets\u2019\u00a0criticality\u00a0score.\u00a0 Community characteristics change\u00a0 Service needs change\u00a0 Financial factors increase (e.g., cost of repair or replacement)\u00a0 Environmental regulations change or become more stringent\u00a0 Impacts from increased weather events\u00a0 Increased urbanization\u00a0 It is advised to\u00a0review the criticality of all assets annually, but if a complete review and revision is not practical given available resources,\u00a0staff should focus on reassessing the criticality of assets that are known to have experienced some type of\u00a0significant change\u00a0or event. For\u00a0example, if […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-5620","page","type-page","status-publish","hentry"],"yoast_head":"\n\n
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