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I am currently tasked with researching the detailed
requirements necessary for installation of temporary concrete barriers on a
South Carolina highway.  Our SCDOT standards are slightly vague on the
subject, I just need to know if you have any research material that states what
type of surface is needed to install temporary concrete barrier walls (flat
surface, any slope allowed, etc.).  Please email me back with any
questions or if you have any materials that I may find useful!

We typically recommend the following for temporary barrier installations.

1.       The barrier should be placed on a relatively flat surface with a grade of 10:1 or less.

2.       We recommend that the barrier be placed on a paved (asphalt or concrete) road surface. We do not recommend that the barriers be placed on soil or grass surfaces as they can dig into the ground. This prevents barrier translation and promotes barrier rotation, which are undesirable.

3.       We also recommend a clear area behind the barrier to allow for barrier deflection without interference. The width of the clear area will depend on the dynamic deflections of the barrier you choose to employ. Deflections can vary significantly between barrier types.

NCHRP Report No. 358 provides a great deal of guidance on TCB installation procedures and recommendations. I have attached the document below.

The file 'NCHRP Report No. 358.pdf' (84.8 MB) is available for download at

http://dropbox.unl.edu/uploads/20140205/5d25d5153b62d561/NCHRP%20Report%20No.%20358.pdf

for the next 14 days.

It will be removed after Wednesday, February  5, 2014.

If you have further questions, let me know.