There are 2 tunnels named “Kanayama Tunnel (金山トンネル, kanayama tonneru)” on the road in Minamifurano Town (南富良野町, minamihurano chō). Completion in one that in old road and Completion in one that in current road, these 2. I come to see these today.
Weather forecast anticipate temperature will be more 30℃, there is no any clouds in the sky, I start to go away from urban area of Kanayama to south with national road 237. the border between Minamifurano Town and Shimukappu Village (占冠村, shimukappu mura) is Kanayama pass that has objective tunnel.
A gully cross the road that leave width to cars can through just barely. I was wondering if it is a town road or something because there is a wheel track, but had it abolished in documents because let go of this?
I have arrived at Kanayama Pass. It pass watershed and connect Isolated Minamifurano Town and Isolated Shimukappu village with cutting elevation of 518m. Line shape changed by construction in – , but the pass have be here.
The current road is using Kanayama Tunnel to pass Kanayama pass now. It’s newer Kanayama Tunnel that constructed on . Where is Kanayama Tunnel of the old road? It’s good question. At first, I write “old road”, but I’m not write “old road of Kanayama Pass”! Surprisingly, old Kanayama Tunnel is not in this old road but in different road altogether.
I had thought Kanayama Pass has 2 generation tunnels too, I looked very hard at old topographic map, but I couldn’t find it. So, I stop looking, and start to travel with wild fancy on the map, I find old Kanayama Tunnel. It’s in north of urban area of Kanayama. I didn’t need to go a long way round if I read the “Status survey report (現況調書, genkyō chōsho)” properly and checked an address.
Let’s look harder at old Kanayama tunnel. (fig. left) At first, road is upon the precipice, railroad is below the precipice. In this era, Kanayama Tunnel is a railroad tunnel below the precipice. (fig. middle left) The railroad moved current position. Kanayama Tunnel abolish temporarily. (fig. middle right) Instantly, the road moved to site of the railroad. Kanayama Tunnel come back again as road tunnel. (fig. right) At last, road moved current position too, this state is same with now. Kanayama Tunnel abolish again.
The road is buried completely under about 10m height talus. I look up to precipice, avalanche preventing fences are hanging, and everytime wind blows, attacked by new falling rocks. I look down, riverside is standing apeak so ground disappear and refuse adamantly detour role.
This is Kanayama Tunnel that completed in . 16.60m length. It’s vertically long dimension, roadway width is 4.0m against critical height is 4.5m. I look foot closely, the under of wall is to narrow slightly and has horseshoe shape. It’s usual that bricked lining is used for railroad, but it’s rare for road. It seems that the tunnel constructed as the railway was diverted to the road by unmodified.
It seems to called Kanayama Tunnel too in railroad era, Kanayama Tunnel means this now. Kanayama Tunnel moved and keeps living.
There are arched steg bridge 2 spans southern Jokei Bridge, and 7 spans northern. I think so. but it may mistake because woods cover. The road is start to keep former vegetation, woods cover my above, the precipice and the river go away.
Infomation of this entry
Major points maps
- Kanayama Pass
- Kanayama Tunnel (between Minamifurano Town – Shimukappu village)
- Iwashiri Bridge
- Kanayama Tunnel (Tonashibetsu Kanayama Minamifurano Town)
- Jokei Bridge
- 南富良野町史編纂委員会（編集）、『南富良野町史 下巻』、南富良野町役場、1991年