翻刻
出候儀ニ御座候右為防此度水内郡小市村渡船場下続
左右之堤之石俵等ヲ以俄ニ急難除為築上申候然処右者川
中島其外川辺御料私領村々之為ニ付領内之人夫ハ勿論
近領水冠ニ可相成村々より多人数差出精々致普請候儀
ニ御座候得共広太之水勢にて暫時も不保不残押流し
申候且又水内郡小市村之字真神山先達而抜崩高サ弐拾間
程横十間程之所犀川江八十間程押出し残川幅僅ニ相
成其侭差置候而者聊之水ニ而も川筋致変地候儀ニ付精々
掘立申付候得とも巌石等多行届兼候処此度之洪水にて
忽ニ押流し数百人にて難動程之大石ヲ川下或ハ川辺村
々耕地等江押出し其辺之水丈六丈余ニも及ひ候ニ付
川辺村々之内更級郡四ツ谷村之儀者暫時八拾軒余之所
内六七軒相残悉く流失致し一円之河原ニ相成右ニ付
家居不残押流候村方も有之其上山中筋水付之山多
分欠崩候付大木等流出是が為に押倒され致流失不
少流凡六百軒余其外石砂泥水入数多有之流死人も有之
趣相聞候得共いまた相分不申候且川下村々之内ニハ地窪之
耕地ハ今以壱丈程も水溜居候次第にて損地等之儀ハ中
々凡之見極も不行届北国往還丹波嶋宿辺ゟ千曲
川犀川落合之辺ハ一円乱瀬二相成丹波嶋宿并北国
現代語訳
出る事態でございます。これを防ぐため、この度水内郡小市村の渡船場下流続きの左右の堤防に石俵等を用いて急遽応急的な防水堤を築き上げました。しかしながら、これは川中島その他川辺のご領地や私領の村々のためでありまして、領内の人夫はもちろん、近隣の水害を受ける可能性のある村々から多数の人員を出して精力的に工事を行いましたが、広大で激流の水勢によって瞬時も持ちこたえることができず、残らず押し流されてしまいました。また、水内郡小市村の字真神山が先達て崩落し、高さ二十間程、横十間程の箇所が犀川に八十間程押し出し、残った川幅がわずかになり、そのまま放置していては少しの水でも川筋が変わってしまう事態になるため、精力的に掘り立てを命じましたが、岩石等が多く作業が行き届かないところに、この度の大洪水によって忽ちに押し流され、数百人でも動かし難いほどの大石を川下あるいは川辺の村々の耕地等に押し出し、その辺りの水深は六丈余りにも及びました。
そのため川辺の村々のうち、更級郡四ツ谷村については、瞬時に八十軒余りの家屋のうち六、七軒が残っただけで悉く流失し、一面の河原になってしまいました。これにより家屋が残らず押し流された村もあり、その上山中筋では水に浸かった山が多分に崩落したため大木等が流出し、これがために押し倒されて流失した家屋も少なくありません。流失家屋は概ね六百軒余り、その外に石砂や泥水が入った家屋も数多くあり、流死人もある様子と聞いておりますが、まだはっきりとは分かりません。また川下の村々のうちには、地面の窪んだ耕地は今でも一丈程も水が溜まっている次第で、損害地等については到底概略の見極めも行き届きません。北国往還の丹波島宿辺りから千曲川と犀川の合流辺りは一円が乱流となり、丹波島宿並びに北国
英語訳
—such was the situation that occurred. To prevent this, we hastily constructed emergency flood-prevention embankments using stone-filled straw bags and other materials on the left and right banks downstream of the ferry crossing at Koichi Village in Minochi District. However, this was for the sake of Kawanakajima and other riverside villages in your domain and private territories. We mobilized not only laborers from within the domain but also large numbers of people from neighboring villages that might be affected by flooding, working energetically on the construction. Yet due to the vast and torrential force of the water, it could not hold even for a moment and was completely swept away.
Additionally, Mount Magami in Koichi Village of Minochi District had previously collapsed, with a section about twenty ken high and ten ken wide pushing out about eighty ken into the Sai River, leaving only a narrow remaining river width. If left as it was, even a small amount of water would cause the river course to change, so we ordered intensive excavation work. However, with many rocks and stones making the work difficult to complete, this great flood immediately swept everything away, pushing massive stones that would be difficult for hundreds of people to move downstream or into the farmlands of riverside villages, where the water depth reached over six jō.
As a result, among the riverside villages, Yotsutani Village in Sarashina District was instantly reduced from over eighty houses to only six or seven remaining, with all others completely swept away, turning the entire area into a riverbed. Due to this, some villages had all their houses swept away. Moreover, in the mountain areas, many water-soaked mountains collapsed, causing large trees to flow out, and many houses were knocked down and swept away by these. The number of houses lost was roughly over six hundred, and additionally many houses were filled with stones, sand, and muddy water. We hear there were also drowning victims, but this is not yet clearly confirmed. Furthermore, in downstream villages, the depressed farmlands still have water pooled to a depth of about one jō, and we cannot possibly make even a rough assessment of the damaged lands. From around Tanbajima post station on the Hokkoku Highway to the area where the Chikuma and Sai Rivers merge, the entire area became turbulent rapids, and Tanbajima post station as well as the Hokkoku