Water and bricks

The street beneath our feet was paved with bricks.  Seen amongst the bricks were these water utility access covers.

GFI WATER with horseshoe U 

WATER with two accesses 

CF-B WATER with two accesses 

TRUMBULL WATER 

These included: 

- a GFI WATER with projecting horseshoe ("U") protecting the pentagon shaped bolt head

- a plain WATER with two access cutouts

- a CF-B WATER with two access cutouts, and

- a TRUMBULL WATER with a pentagon shaped bolt head.  

That five sided bolt head (or screw head) is also called a "penta screw" or "penta bolt".