Former Mimori Tunnel (Kōriyama City)
Supervised by Suzuking. (KARASU CHANNEL / Occult & horror reporting, 7 years)
Contents
View basic details of this location (address, history, status, etc.)
- Location
- Kōriyama City, Fukushima Prefecture (distinct from the current Mimori Tunnel; on the old road) (map coordinates are approximate)
- Built
- Unknown (no record of its completion year could be confirmed)
- Closed / Decommissioned
- Unknown (already filled in and no longer extant as a structure; the exact circumstances and timing of its closure could not be confirmed)
- First Rumored
- A rumor that honking three times triggers a paranormal phenomenon, and sightings of a headless rider (when this began being told could not be confirmed)
- Current State
- The old tunnel has been filled in
- Access
- No entry (the old road is derelict and difficult to enter)
- Last Verified
- 2026.09.11
The former Mimori Tunnel is said to remain along an old road within Kōriyama City. Distinct from today’s Mimori Tunnel, it has long been the subject of rumors: that honking three times triggers a paranormal phenomenon, and that a headless rider has been sighted there.
What’s Said
Regarding a tunnel said to remain along an old road within Kōriyama City, stories have circulated that “honking three times triggers a paranormal phenomenon” and that “a headless rider has been sighted.” This tunnel sat on the old-road side, separate from today’s Mimori Tunnel.
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Our Analysis — Why a “Ritualized Rumor” Takes Hold
We see the rumor that honking three times triggers a paranormal phenomenon as a classic example of a story that spread not simply as a scary tale, but as a kind of ritual among young people — something to be performed as an established custom.
This is speculation, but part of why the specific image of a headless rider took hold may be that the old tunnel’s dim, narrow structure itself was an environment prone to suggesting an eerie silhouette through the play of shadow cast by motorcycle or car headlights.
It’s worth noting that the old tunnel has already been filled in and is a separate facility from the new tunnel currently in use. We’d like to preserve this rumor as a record of the old road’s memory — a place that, in practice, can no longer be entered.
Nearby Recommendation — Kōriyama Nunobikikaze Highland
On the high ground of Konan-machi, Kōriyama City, where the Mimori Pass sits, lies Kōriyama Nunobikikaze Highland, spreading across an elevation of roughly 1,000 meters. It’s known for its massive rows of wind turbines lining the hills and, in season, a sunflower field that colors the entire landscape, drawing many tourists for photography in summer. In contrast to the rumors of the now-filled, no-longer-existing old tunnel, this remains an open, active tourist destination of windmills and flower fields to this day.
What the Record Shows
The former Mimori Tunnel at the center of this rumor has already been filled in and no longer exists as a structure. Because its name closely resembles that of the current Mimori Tunnel, a good deal of information online conflates the two, but the rumors were always told about the old-road side. We were unable to confirm, from the sources consulted for this investigation, the year the tunnel was completed, the circumstances of its closure, or roughly when the rumors began.
A Note on This Record
The old road itself appears to have fallen into disrepair, making entry difficult. Since nothing remains of the filled-in tunnel, we don’t recommend entering the area for exploration purposes. This article is composed based on publicly available information.
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Frequently Asked Questions
Q. Does the former Mimori Tunnel still exist today?
A. No, it has already been filled in and no longer exists as a structure. The old road also appears to have fallen into disrepair and is difficult to enter, so we don’t recommend visiting for exploration purposes.
Q. Is it the same as the current Mimori Tunnel?
A. No, it’s a different tunnel. Because the names are similar, a good deal of information online conflates the two, but the rumors were always told about the tunnel on the old-road side.
Q. Since when have the rumors been told?
A. We were unable to confirm the tunnel’s completion year, the circumstances of its closure, or when the rumors began, from the sources this site consulted.
Q. Has KARASU CHANNEL filmed on location at the former Mimori Tunnel?
A. No, we have not filmed there yet; a visit is currently under consideration. Location footage for other haunted spots and kaidan stories can be viewed on KARASU CHANNEL (YouTube).
Supervised by Suzuking.
Affiliation: KARASU CHANNEL
Occult & horror reporting: 7 years (since 2020)
Followers: YouTube 5,000+ / X 25,000+
On-site investigations: 30+
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