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I’ve been working on developing some KDOT guidelines for
|Date||August 23, 2017|
|Attachment||DRAFT KDOT Guidelines for Temporary Pre-Cast Concrete Safety Barrier Condition Inspection.pdf|
I looked through your document and think it looks pretty good in general. This is an issue for many states, and no formal research has been done to provide consistent guidance from state to state. We have proposed this in the past, but it has never received enough traction to get funded.
My main concern is that the guidance may not be detailed enough that someone will be able to clearly denote whether the barrier needs to be replaced or not. Of course you have no hard data to support that type of detail either, so it is a bit of a catch 22. However, things such as clarifying crack width and length, critical locations of damage, and other details may allow for easier determination of adequate barrier condition for use.
I have some other comments below.
Many other states have similar details. You may want to look at the attached files. One of them contains a summary of guidance from many states and may be useful to get a consensus on what guidance others have been using.
Let me know if that helps or if you need more information.
|Date||September 7, 2017|
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