Tausubetsugawa Bridge

Overview

The Tausubetsugawa Bridge is a concrete arch bridge located in Lake Nukabira, Kamishihoro-cho, Hokkaido. It's part of the former JR Shihoru Line, which opened to Tokachi Mitsumata Station in 1939. The bridge was built over the Tausubetsu River, a tributary of the Onuma River. However, the construction of the Nukabira Dam for hydroelectric power generation on the Onuma River resulted in the surrounding area being submerged by the resulting lake (Lake Nukabira). In 1955, the Shihoru Line was rerouted to avoid the lake, rendering the Tausubetsugawa Bridge obsolete. While the tracks were removed, the bridge itself remains submerged in the lake to this day. Lake Nukabira's water level dramatically changes with the seasons and power generation. Sometimes the entire bridge is submerged, while at other times, the water level is low enough to reveal the whole structure. This has earned it the nickname "Phantom Bridge." The Tausubetsugawa Bridge is a magnificent 11-arch structure spanning 130 meters, reminiscent of an ancient Roman aqueduct. The concrete arch bridge is a testament to the exceptional engineering skills of the then-Japanese Railway Ministry. Other concrete arch bridges from the former JR Shihoru Line are scattered in the area, offering a glimpse into the past. An observation point is also located on the shores of Lake Nukabira, allowing visitors to admire the bridge and the stunning natural scenery. Designated a Hokkaido Heritage site, the Tausubetsugawa Bridge holds significant historical value. In recent years, however, damage to its structure has increased due to the water pressure from submersion and repeated freeze-thaw cycles. Preservation is a major concern, but many individuals are actively involved in conservation efforts to safeguard this precious historical legacy for future generations.