Chiba flooding damage refuses to recede — 5ch reacts: “This might be a lost cause”

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The story

Photos and on-the-ground reports of the flooding across Chiba Prefecture have been pouring into 5ch’s “Nandemo Jikkyo G” (general live-news) board. Around Lake Inba the water still hasn’t receded — one report says a fish farm was completely submerged with an estimated 1 billion yen in damage, and some expect it could take about three months before the Uchibo rail Line resumes service. Congestion on Route 16 has worsened, compounded by landslides on detour roads, leaving traffic gridlocked. In the thread, some suggested the cause may not be river overflow but groundwater welling up from the ground itself, while others voiced concern about further rain and an approaching typhoon.

What people said

2AnonymousSep 25, 2026 23:13


3AnonymousSep 25, 2026 23:14


5AnonymousSep 25, 2026 23:15
Going forward




7AnonymousSep 25, 2026 23:16
Re: #5
There's still more coming~!
6AnonymousSep 25, 2026 23:15
This might be a lost cause (riffing on a famous Attack on Titan meme line)
11AnonymousSep 25, 2026 23:17
Saw it on YouTube — apparently it's not water flowing in from the marsh, it's groundwater welling up, and it doesn't look like it's going down
132AnonymousSep 26, 2026 00:15
Re: #11
Chiba had groundwater welling up out of the ground during the 3/11 earthquake too, so the ground there was probably always prone to this. They've neglected infrastructure maintenance, and now one typhoon or heavy rain and this happens.
13AnonymousSep 25, 2026 23:17
Why would anyone even live in Chiba?
25AnonymousSep 25, 2026 23:19
Re: #13
Because I want to go cheer on the Lotte Marines
22AnonymousSep 25, 2026 23:19
Three months to restore the Uchibo Line is brutal. I mean the Kominato and Isumi Railways are basically dead too, but their ridership numbers are nowhere close.
26AnonymousSep 25, 2026 23:20
A victim from the Edo era
27AnonymousSep 25, 2026 23:20
Re: #22
South of Chiba City there's no rail line to run replacement service on, so anyone without a car is basically forced to change jobs
35AnonymousSep 25, 2026 23:24
Re: #27

Meanwhile, the roads:
47AnonymousSep 25, 2026 23:30
Re: #35
Is this a bullet-hell shooter or something?
42AnonymousSep 25, 2026 23:26
A fish farm near Lake Inba that was raising koi got completely submerged
and I was shocked to hear the damage estimate is roughly 1 billion yen
Koi are seriously expensive, huh
46AnonymousSep 25, 2026 23:27
Re: #42
At the world's top-tier individual level, koi go for tens of millions to over 100 million yen
48AnonymousSep 25, 2026 23:30
During the Noto Peninsula earthquake, poor accessibility was blamed for the slow recovery, but who'd have thought this would happen in Chiba, where it's practically one train ride to the capital
52AnonymousSep 25, 2026 23:34
They need to fill in the breach, but
that's not really possible until the water recedes, right?
62AnonymousSep 25, 2026 23:39
Re: #52
They'll probably stack flexible container bags as makeshift sandbags just to stop the water from flowing out
Looks like rain will continue for a while and a typhoon might be coming too, so they need at least emergency measures in place
53AnonymousSep 25, 2026 23:35
Sounds like another typhoon's coming too — heavy rain in Kanto tomorrow or so?
60AnonymousSep 25, 2026 23:38
Re: #53
There's no way to recover at this rate…😱
58AnonymousSep 25, 2026 23:38
I live out in the boonies on Chiba-kun's lower half (the mascot shaped like the prefecture), but thanks to being on high ground this recent rain streak hasn't affected me at all
Though in exchange, distribution seems to have been cut off upstream, since fresh food has vanished from AEON
67AnonymousSep 25, 2026 23:40
Re: #58
That's quietly rough, honestly
139AnonymousSep 26, 2026 00:20
Re: #58
Somewhere around Kisarazu?
143AnonymousSep 26, 2026 00:21
Re: #58
These days, having distribution grind to a halt really hurts
The Kumamoto earthquake also cut off distribution between northern Kyushu (Fukuoka, Saga) and southern Kyushu (Miyazaki, Kagoshima)
70AnonymousSep 25, 2026 23:41
Wasn't Lake Inba the one featured on that "Drain the Pond" TV show? Even after they drained it, sounds like invasive species have mixed back in
80AnonymousSep 25, 2026 23:46
Re: #70
Come to think of it, Lake Inba is apparently a massive breeding ground with something like 10,000 snapping turtles living in it
There's no way I'd ever step into a puddle that overflowed from there
83AnonymousSep 25, 2026 23:47
Re: #80
I hear they're pretty tasty, apparently
85AnonymousSep 25, 2026 23:48
Re: #80
Yikes… that's a seriously dangerous lake, isn't it…
If those things end up scattered everywhere, that's genuinely bad news, right?
73AnonymousSep 25, 2026 23:43
92AnonymousSep 25, 2026 23:51
Apparently traffic on Route 16 is insane
It's already congested as it is, but side roads are blocked here and there by landslides
and all the trucks on Route 464 (toward Lake Inba/Inzai) are getting rerouted that way too, so it's basically hopeless
95AnonymousSep 25, 2026 23:54
Re: #92
It's the usual story, but the Yobizuka intersection is even more finished than usual
97AnonymousSep 25, 2026 23:56
Re: #92
Chiba's nothing but bad traffic spots anyway

Background and Key Points of This Topic

The area around Lake Inba was originally reclaimed low-lying wetland, and it’s said to be land that also suffered groundwater flooding during the 2011 Great East Japan Earthquake. Opinions in the thread were split over whether this flooding is a temporary result of rivers overflowing, or whether water is continuously welling up from the ground itself. If it’s the latter, the water level won’t drop quickly even once the rain stops, which would mean a longer recovery. Worth noting is that the impact on transportation and daily infrastructure — the Uchibo Line’s expected suspension, congestion on Route 16, and a shortage of fresh food from halted distribution — was reported alongside concrete figures. At the same time, many posts were seen unilaterally blaming residents of the affected area with comments like “it’s their own fault for living there,” but those have been excluded from this article. Care should be taken not to conflate glib remarks about place names and terrain with actual reports of the damage.

※This article is excerpted and summarized from the 5ch (Nandemo Jikkyo G) thread “[Photos] Chiba’s current situation, “living hell”: water levels not receding.”

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