--- title: Underestimated Duration description: CruzAlta discussed how underestimated duration can cause turnaround delays for refineries. image: https://cruzalta.com/hubfs/Underestimated%20Duration.jfif --- [Skip to content](https://cruzalta.com/blog/underestimated-duration#main-content) [![CruzAlta logo\_full color\_2025](https://cruzalta.com/hs-fs/hubfs/CruzAlta%20logo_full%20color_2025.png?width=3582&height=492&name=CruzAlta%20logo_full%20color_2025.png "CruzAlta logo_full color_2025")](https://cruzalta.com/) - [Our Solutions](https://cruzalta.com/solutions) - [Why Cruzalta](https://cruzalta.com/why-cruz-alta) - Resources Show submenu for Resources - [Insights](https://cruzalta.com/insights) - [Blog](https://cruzalta.com/blog) - [Webinars](https://cruzalta.com/webinars) - [Our Team](https://cruzalta.com/team) - [Careers](https://cruzalta.com/careers) - [Contact](https://cruzalta.com/contact) - [Our Solutions](https://cruzalta.com/solutions) - [Why Cruzalta](https://cruzalta.com/why-cruz-alta) - Resources Show submenu for Resources - [Insights](https://cruzalta.com/insights) - [Blog](https://cruzalta.com/blog) - [Webinars](https://cruzalta.com/webinars) - [Our Team](https://cruzalta.com/team) - [Careers](https://cruzalta.com/careers) - [Contact](https://cruzalta.com/contact) ## BLOG SHARE - - - [whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration](whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration) - - [fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration](fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration) ![Underestimated duration](https://cruzalta.com/hubfs/Underestimated%20Duration.jfif) # Underestimated Duration Posted by [CruzAlta](https://cruzalta.com/blog/author/cruzalta) on January 9, 2023 ![Underestimated Duration](https://cruzalta.com/hubfs/Underestimated%20Duration.jfif)Underestimated Duration is the fourth most common cause of shutdown timeline extension. Unlike the first three reasons that we have been unpacked over the past few blogs (1. Lack of Mechanical Readiness; 2. Undersized Effluent System; 3. Operations Resource Constraints), the root cause of underestimating the shutdown duration is the failure to plan the shutdown effort in enough detail. Historically, shutdowns were people intensive, and success was dependent on the heroic coordination of a few extremely experienced operations leaders. Procedures were in place, but mastering the fine details was atypical and challenging the shutdown duration was even more rare. Now that optimizing the shutdown window has finally been embraced as the most available turnaround event duration reduction opportunity, both experienced people and an extremely detailed shutdown program is essential. “The Great Resignation” of the past three years has decimated the capability of most operations teams in our industry so dramatically that the historic people-dependent shutdown is not even an option. An aggressively optimized shutdown timeline is a prerequisite for delivering a competitive turnaround duration and requires an extremely detailed operations approach, one which is characterized by a collaboratively developed shutdown plan assembled by facility operations leads leveraging the experience of seasoned contract operations experts and an operations team aligned and committed to delivering the shutdown timeline. Without this comprehensive program, an aggressive shutdown target is not achievable, and shutdown duration extension will result. Experiencing any of the four discussed turnaround delays? We're here to help. [https://hubs.la/Q01t3ztf0](https://hubs.la/Q01t3ztf0) [Underestimated Duration](https://cruzalta.com/blog/tag/underestimated-duration) ### LEAVE YOUR COMMENT ### RELATED ARTICLES ### [Operations Availability Ranks #3 Out of The Top Four Causes of Shutdown Duration Extension.](https://cruzalta.com/blog/operations-availability-ranks-3-out-of-the-top-four-causes-of-shutdown-duration-extension) 1 min Posted by [CruzAlta](https://cruzalta.com/blog/author/cruzalta) on January 9, 2023 - - - [whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration](whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration) - - [fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration](fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration) [![](https://cruzalta.com/hs-fs/hubfs/CA%20Graphic.png?width=352&name=CA%20Graphic.png)](https://cruzalta.com/blog/operations-availability-ranks-3-out-of-the-top-four-causes-of-shutdown-duration-extension) Until recently, shutdown durations were typically not challenged and would represent the mentality... [READ MORE →](https://cruzalta.com/blog/operations-availability-ranks-3-out-of-the-top-four-causes-of-shutdown-duration-extension) [Underestimated Duration](https://cruzalta.com/blog/tag/underestimated-duration) ### [Top 4 Causes of Turnaround Delays](https://cruzalta.com/blog/top-4-causes-of-turnaround-shutdowns) 1 min Posted by [CruzAlta](https://cruzalta.com/blog/author/cruzalta) on January 9, 2023 - - - [whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration](whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration) - - [fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration](fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration) [![graphic of 4 shutdown causes](https://cruzalta.com/hs-fs/hubfs/Top%204%20Causes%20of%20Turnaround%20Delays%20Graphic.jpg?width=352&name=Top%204%20Causes%20of%20Turnaround%20Delays%20Graphic.jpg)](https://cruzalta.com/blog/top-4-causes-of-turnaround-shutdowns) 1. Turnaround failures are an unfortunate fact of life for many refineries, and no one wants to... [READ MORE →](https://cruzalta.com/blog/top-4-causes-of-turnaround-shutdowns) [Underestimated Duration](https://cruzalta.com/blog/tag/underestimated-duration) ### [Effluent Management](https://cruzalta.com/blog/effluent-management) 1 min Posted by [CruzAlta](https://cruzalta.com/blog/author/cruzalta) on January 9, 2023 - - - [whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration](whatsapp://send?text=Check%20out%20https://cruzalta.com/blog/underestimated-duration) - - [fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration](fb-messenger://share/?link=https://cruzalta.com/blog/underestimated-duration) [![effluent management infographic from CruzAlta](https://cruzalta.com/hs-fs/hubfs/Effluent%20Infographic.png?width=352&name=Effluent%20Infographic.png)](https://cruzalta.com/blog/effluent-management) In our previous blog, we introduced the top four turnaround delays and more deeply explored the #1... [READ MORE →](https://cruzalta.com/blog/effluent-management) [Underestimated Duration](https://cruzalta.com/blog/tag/underestimated-duration) ### Subscribe to Our Blog ### Recent posts [![CruzAlta Logo](https://cruzalta.com/hs-fs/hubfs/CruzAlta%20Tagline%20logo_full%20color_2025.png?width=596&name=CruzAlta%20Tagline%20logo_full%20color_2025.png)](https://cruzalta.com/blog/special-operations-team-enhances-sites-operator-training-resulting-in-increase-in-goals-achieved) [Special Operations Team Enhances Site's Operator Training, Resulting in Increase in Goals Achieved](https://cruzalta.com/blog/special-operations-team-enhances-sites-operator-training-resulting-in-increase-in-goals-achieved) Mar 4, 2024 [![CruzAlta Logo](https://cruzalta.com/hs-fs/hubfs/CruzAlta%20Tagline%20logo_full%20color_2025.png?width=596&name=CruzAlta%20Tagline%20logo_full%20color_2025.png)](https://cruzalta.com/blog/ops-constructability-review-delivers-exceptional-value-by-eliminating-unnecessary-equipment-and-streamlining-process-efficiencies) [Ops Constructability Review Delivers Exceptional Value by Eliminating Unnecessary Equipment and Streamlining Process Efficiencies](https://cruzalta.com/blog/ops-constructability-review-delivers-exceptional-value-by-eliminating-unnecessary-equipment-and-streamlining-process-efficiencies) Feb 20, 2024 [![](https://cruzalta.com/hs-fs/hubfs/CAPE%20%20(1).png?width=596&name=CAPE%20%20(1).png)](https://cruzalta.com/blog/a-craftsman-toolbox-cruzaltas-turnaround-management-consulting) [A Craftsman Toolbox: CruzAlta's Turnaround Management Consulting](https://cruzalta.com/blog/a-craftsman-toolbox-cruzaltas-turnaround-management-consulting) Feb 17, 2023 [![Underestimated duration](https://cruzalta.com/hubfs/Underestimated%20Duration.jfif)](https://cruzalta.com/blog/underestimated-duration) [Underestimated Duration](https://cruzalta.com/blog/underestimated-duration) Jan 9, 2023 [![](https://cruzalta.com/hs-fs/hubfs/CA%20Graphic.png?width=596&name=CA%20Graphic.png)](https://cruzalta.com/blog/operations-availability-ranks-3-out-of-the-top-four-causes-of-shutdown-duration-extension) [Operations Availability Ranks #3 Out of The Top Four Causes of Shutdown Duration Extension.](https://cruzalta.com/blog/operations-availability-ranks-3-out-of-the-top-four-causes-of-shutdown-duration-extension) Dec 13, 2022 ![CruzAlta logo\_white\_2025](https://cruzalta.com/hs-fs/hubfs/CruzAlta%20logo_white_2025.png?width=2000&height=275&name=CruzAlta%20logo_white_2025.png "CruzAlta logo_white_2025") ![rti-110-wp-tl](https://cruzalta.com/hubfs/img/gx/video%20thumbnails/rti-110-wp-tl.png "rti-110-wp-tl")   [480 Wildwood Forest Drive Suite 400 Spring, TX 77380](https://goo.gl/maps/9sm2mvrjjr3qNZd88) [832-482-4248](tel:832-482-4248) [Follow us on LinkedIn](https://www.linkedin.com/company/cruzalta/) © 2026 All rights reserved. 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