No matter which city you arrive in Japan, take a look at the ground in front of the station. You'll find vibrant Japanese manhole covers. When I first saw them, I was truly amazed. Manholes in Shizuoka with Mount Fuji, Nara with leaping deer, and even Pokéfuta featuring Pokémon characters.
When I asked a Japanese friend, they proudly boasted that their town's manhole covers were the prettiest. They're not just decorations. As of 2026, there are over 12,000 types of designer manholesacross Japan, and they are a core asset for local government branding, conveying the history, culture, and specialty products of a region in the most intuitive way. Let's delve into the story hidden beneath our feet.
Historical Background: Transforming Tax Aversion into Art
The history of designer manholes began in the 1980s with Japan's sewerage improvement project. At the time, the Japanese government was investing enormous budgets to modernize the sewage system, but citizens were not pleased with large sums of tax money being spent on unseen underground facilities. There were many complaints like, 'I don't know where my taxes are going!'
It was then that a brilliant idea came from Yasutake Kameda, an official at the Ministry of Construction. He suggested, 'Let's make the manhole covers, the only exposed part of the sewage system, beautiful to show that the sewerage project is about beautifying our town.'
The result was a huge success! Local governments eagerly began engraving local symbols like flowers, trees, and legends onto manholes, and residents came to see them not as cold iron plates but as works of art imbued with the pride of their town. The cost of producing one designer manhole, including design and mold making, is said to be around 600,000 to 1 million yen. Considering the promotional effect and increased administrative trust, it's an incredibly profitable venture, wouldn't you say?
0.01mm Engineering: The Precise Combination of Casting and Resin
Why are Japan's designer manholesrecognized globally? It's due to the meticulousness of the manufacturing process. It's not just about drawing on an iron plate; it requires advanced technology that combines metal casting with special resins.
Anti-Slip Design (Safety Engineering)
Manholes are road facilities, so it would be a serious problem if people or motorcycles slipped on them when it rains, right? That's why the key technology is to adjust the height difference of the patterns down to 0.01mm, maintaining a consistent coefficient of friction on the surface while achieving elaborate designs.
Hand-Painted Coloring (Manual Craftsmanship)
The process of filling the grooves of cast metal with colored resin is surprisingly done by skilled artisans' hands. Through meticulous removal of tiny air bubbles and color mixing that machines cannot do, they ensure robust durability that resists discoloration over long periods.
Thanks to this technical prowess, Japanese manholes not only withstand the weight of vehicles but also serve as a great example of public designthat enhances urban aesthetics.
Manhole Card: A Tourism Revolution Created by 6 Million Cards
If designer manholes are the hardware, then the manhole cardis the software that truly made them explode! First issued in 2016 by the 'Sewerage Public Relations Platform (GKP),' this card has now become a huge project involving over 900 local governments in Japan.
From a marketing perspective, the manhole card succeeded because it effectively leveraged scarcity. Cards can only be obtained by visiting designated locations in that specific region; they are never sent by mail. This principle of 'you can only get it if you go there!' ignited the passion of collectors.
People who travel long distances to get a card naturally eat at local restaurants and buy local specialties. In fact, some small towns have experienced a miracle, with tourist numbers increasing more than tenfold because of manhole cards. The back of the card includes an explanation of the design and even the GPS coordinatesof the manhole's location, leading to a 'pilgrimage' culture where people seek out the actual manholes after receiving the cards.
"A manhole cover is no longer just an iron plate covering a sewer. It is a key to unlocking a region's treasure map, and the lowest greeting a local government offers its citizens."
'Foot-Level Treasure Hunt' with Pglemaps
When people plan a trip to Japan, they usually think of beautiful scenery or delicious food. But Pglemaps wants to tell you to look down at your feet. There's a deeper story hidden there than any flashy sight.
Pglemaps' smart route planning tool will seamlessly integrate manhole card distribution locations and actual designer manhole spots into your travel plan. It transforms boring travel time between famous tourist attractions into an exciting explorationtime of searching for manhole covers. An adventure to discover the charm of local government branding hidden in every nook and cranny of narrow alleys! Doesn't that sound exciting?
🗺️ Recommended 'Designer Manhole' Regions Across Japan
Hokuei Town, Tottori Prefecture The hometown of Detective Conan! The entire town is filled with Conan manholes. Fuji City, Shizuoka Prefecture Japan's most famous manhole, capturing the grandeur of Mount Fuji. Nara City, Nara Prefecture Admire works of art featuring deer and cherry blossoms, symbols of the ancient capital.Why There's a Treasure Map Beneath Your Feet
Japanese manhole coversare not just iron plates you pass by. Once you start noticing them, you can't stop. The entire Conan village is covered with Conan manholes, and standing on a Mount Fuji manhole while looking at the actual Mount Fuji is quite a unique experience. If you add manhole card distribution locations and designer manhole spots to your travel route in Pglemaps, your travel time simply becomes an exploration.
Be careful not to obstruct traffic when taking photos of manholes, and be aware that surfaces can be slippery on rainy days. Comfortable shoes are a must, and if you're serious about collecting cards, bring an album. Most are accessible on foot, but a rental car is better for outlying areas.