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Hydrologic culvert design in general terms may be considered an art more than a science in my opinion. There certainly are hard facts and science involved but more often than not, when it comes to practical applications, the amount of data is typically very limited; this is especially true during the early stages of a projects design cycle.

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I get asked quite often a seemingly benign question related to the design and installation of corrugated metal (and plastic) pipes - a question that’s worded basically as – “Can a design engineer build in additional safety factor into the design to compensate for poor installation practices and techniques?”. This isn’t as simple or straightforward

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Dear Tech Abby:  Do I have to use a crushed stone backfill for my PVC sewer pipe installation?  --That 70’s EngineerDear That 70’s Engineer:  Good question… the answer is “maybe”…Well, let me expand on that.  First, when talking about PVC sewer pipe, remember that PVC products are commonly used in both gravity flow sanitary and storm sewer

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As a corrugated metal pipe culvert or storm sewer ages, it is common for the invert to bear the brunt of the corrosion and abrasion damage.   Paving the invert with concrete can be an inexpensive way to extend the service life of the structure if done right and at the right time.  A non-reinforced paved invert with no mechanical attachments could

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All too often I am reminded of the American industrialist, J. Paul Getty’s quote, “In times of rapid change, experience could be your worst enemy.”  Even though Mr. Getty was an oil baron, these words ring true within the civil engineering community.  How many times have you been in a meeting and heard an experienced person make a comment like, “we

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