Maintenance Hole

In urban areas, stray voltage issues have become a significant concern for utilities. In 2004, Jodie S. Lane was electrocuted after stepping on a metal manhole cover, while walking her dog in New York City. One solution is the Electrified Cover Safeguard invention, which is an on site, real time stray voltage warning system which is being used in the street lights in New York City and is also being tested by ConEd and other utilities and municipalities in England, Europe, and Japan.
Feminist issue with manhole name
In 1990, the city of Sacramento, California officially renamed all its manholes to "maintenance holes" out of concern for gender equality. The name "maintenance hole" was selected because the term shares the same initials as the word "manhole", thereby eliminating the need to change the MH labels on the city's utility maps.