3 Street-tree pit soil levels

Depressed soil in a tree pit whose edges indicate that a grate once surrounded this honeylocust.

The soil level in this tree pit has been raised with potting soil. Is the bark of this Callery pear rotting behind/beneath the soil?

The soil level shown above is at-grade. Little water is pooling in this tree pit on a rainy day. Hopefully the soil level will not be raised around this honeylocust.

These three tree pits are located on West Third Street between Thompson Street and LaGuardia Place.