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Lake Mashu Tourism Association

Apr. 12, 2026

【Notice of Winter Road Closures and Reopenings】
This is a notice regarding winter road closures and reopenings.
The following roads in the Mashu Area will be reopened for winter traffic starting from the dates listed below.

・Prefectural Road 150, Lake Mashu Nakashibetsu Line (Ura-Mashu Viewpoint) will reopen on April 20 at 9:00 AM.
・Prefectural Road 587, Atosato Koshimizu Line will reopen on April 20 at 10:00 AM.
・Prefectural Road 588, Kussharo Tsubetsu Line (Tsubetsu Pass) is scheduled to reopen on May 15 at 10:00 AM.
*During the winter, the detour for Tsubetsu Pass will be along Japan National Route 243 (Bihoro Pass).

For more information on winter road closures, please check the Teshikaga Navi.
We apologize for any inconvenience and appreciate your understanding and cooperation.

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www.masyuko.or.jp

冬季道路通行止め・解除のお知らせ | お知らせ | 弟子屈なび

冬季道路通行止め・解除のお知らせです。摩周エリアにある下記の道路は、各日程より冬季通行止めが解除となります。・道道150号摩周湖中標津線（裏摩周展望台）　4/20　9:00-　開通・道道587号跡佐登小清水線　4/20　10:00-　開通・道道588号屈斜路津別線（津別峠）　5/15　10:00-　開通予定 ※津別峠の冬期間のう回路は国道243号線（美幌峠）となります。冬季通行止めのお知らせは、こちらの弟子屈なびにてご確認ください。ご不便をおかけしますが、ご理解とご協力のほどよろしくお願いいたします。