Some manhole covers feature maps of their surrounding area


Seattle Map Manhole Cover by 1st Ave & Spring Street Photo: Gordon Werner, CC BY 2.0

Description

Besides providing access to the underlying sewer system, manhole covers in cities decorate them with maps.

“In 1977, Seattle commissioned 19 custom manholes, which were placed on corners near landmarks. The map manholes were designed by Anne Knight who was inspired by Seattle’s “graphically interesting street pattern.”

Source: Geolounge


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