Decorative manhole covers certainly aren’t necessary, but in a country where infrastructure is often overlooked, every little bit of attention is welcome.And thanks to a recent trend, these utilitarian art forms are gaining popularity. The #ManholeMonday hashtag has been popping up frequently on Facebook and Twitter, with several utilities highlighting the more creative aspects of these municipal mainstays.In the past couple of months, San Francisco Water Power and Sewer has tagged images of manhole covers with colored tiles, graphic images and playful messages. According to the utility, most of these images are from Japan, where 95 percent of municipalities incorporate
