Back in January of 2020, I featured the four-family on Shenandoah Avenue whose front porch was later demolished due to structural problems (it was almost certainly not original to the building).
Lo and behold, it has been completely rebuilt, which is great news, as it added a lot of character to the Tower Grove East neighborhood.
As I had explained back in 2020, the breadth of the arch was too wide for the buttressing on the piers on either side of the span. Thus, the arch was buckling out, instead of channeling the force of the weight of the bricks downward into the ground. Whether there is some sort of metal framework in the brick that was installed before the laying of the brickwork in unknown.