View Q&A

I recently received a question from the field following a high tension cable barrier impact. They noted damage to 11 line posts and at least 9 of the corresponding driven sockets. The attached photos show 2 of the sockets with damaged posts removed. Their main question was if it is acceptable to set new posts in sockets like those shown in the photos. If it’s not acceptable, their next question was if anything can be done to the in-place socket to make it acceptable or if socket replacement is the only option.

Any feedback you can provide on this topic is greatly appreciated.

Thanks,

I cannot say for certain what level of damage requires replacement for a proprietary cable barrier post socket as we did not design the system and do not have detailed knowledge of how the socket damage could affect the barrier performance.

In a more general sense, socketed posts of any kind typically function by inserting a shorter post into a stronger socket that extends below grade. The socket is typically expected to develop the resistive force of the post required to allow a barrier system to function properly.

In the case you have shown here, the fracture and deformation of the upper portion of the socket would likely compromise the ability of the socket to develop the post capacity and resistive forces. Thus, we would generally recommend replacement of the socket in these cases.

In terms of repair of the socket. I don’t know if that could be done in a way that restores the socket to a performance level close to its original function. That would likely be a question for the manufacturer of the system.

Let me know if you have further questions.