①Closure section :  Iwanai - Toya Route (a. k. a  Panorama Line), Iwanai - Rankoshi Line, Kutchan - Niseko Line​ Closure period: 23 rd October 2017  - May 2018 as planned ②Closure section : Shimamaki Pirika Line,  Shiraikawa Toyoura Line Closure period: 6 November 2017 - May 2018 as planned ③Closure section : Iwanai Toya Line / Kyowa oikomi 744 - Rankoshi Yunosato (Yunosato Gates) 18km Closure date: 23 October 2017 ④Closure section : Route 268 Iwanai Rankoshi Line / Kyowa Oikomi - Rankoshi Niimi (Rankoshi Niimi Gates) 7km Closure date: 23 October 2017 ⑤Closure section :  Kutchan Niseko Line / Kutchan, Hanazono National Forest Park, 12 Rin pan Gate - Niseko cho/ Rankoshi cho (Goshiki Onsen Gates) 6km Closure date: 11 a.m. 23 October 2017 ⑥Closure section : Shimamaki Pirika Line: Shimamaki Tomari 451 Gates - National Forest Park 3230 Rin pan 5km Closure date: 2 p.m. 6 November 2017 ⑦Closure section : Shiroikawa Toyota Line: Kuromatsunai Higashikawa 374 - Higashikawa Mubannchi 4km Closure date: 10 a.m. 6 November 2017   For inquiries, please call to the Otaru Construction Management Division, Rankoshi Branch Office 　TEL 0136-57-5121