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What does MwRSF have to say about running conduit in concrete barrier?  We wonder especially about this 41" long by 12" tall, by 9" deep junction box.  The stainless steel cover appears to be a potential for snagging if hit by a bumper.

One thing we do have going for us is that our permanent concrete barrier is massive, plain concrete.  For the 32 inch tall barrier, the width at the top of the wall is 17 inches, and for the 42 inch wall, 19 inches.

In general, I do not have much concern with placing conduit within a reinforced concrete barrier as long as it does not affect rebar placement and result in a much weaker barrier strength for vehicle redirection. Usually, the conduit in centered and placed lower in the barrier, thus reducing my concern.

Second, I am not a proponent for using non-reinforced concrete barriers. However, if a barrier is extremely wide and non-reinforced, the placement of conduit in the lower center region of the barrier would not drastically weaken the barrier.