Pinned-down Portable Concrete Barrier – what pin type to use when the surface is concrete with an asphalt overlay?

#9015 October 1, 2021 Christopher Henson ( [email protected]) Oregon

Report No. 605071, April 2016 provides guidance for pinned-down temporary concrete barriers. Two options are given depending on if the surface is asphalt or concrete. However, what if the surface is concrete with an asphalt overlay (such as on a bridge deck)? Would the concrete pin type with a custom length work? Just long enough to account for the thickness of the asphalt and still be anchored in the concrete?

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