翻刻
鳴動并震止不申何共気遣敷次第甚以心痛仕候委細之
儀は追而取調之上可申上候得共猶又此段先御届申上候以上
四月十八日
真田信濃守
先達而御届申上候私領分信州更級郡山平林村之内岩倉
山抜崩犀川湛留候場所四月十三日夕一時二押破川中嶋一円之洪水
二相成候二付川上は追々常水二も相復可申候哉二奉存候処巖石
多分相残候故存之外不致減水今以常水ゟは五丈余も
相湛居川添村々地窪之場所は居家耕地共水中二相成
居其上右川筋所々山抜二而石砂押埋候得共山中筋より
川中嶋一流川々床高罷成難渋之次第且先般先御届申上候
同郡鹿谷村日名村分地松平丹波守領分境高地川と申山沢
両岸抜落沢水湛留候二付右押埋之場所深さ弐丈程為堀割
候得共両岸之土砂崩埋候故何分堀割方不行届候処追々水
嵩相増去月廿八日ゟ水乗流附候得共此上自然一時二押破
犀川江押出候節は前条之通未水湛居候上之儀二付右川辺
村々如何様之水災二及可申哉一流恐怖罷在其以心痛仕候
并右鹿谷村地内字荒間沢と申谷川江同村之内柳窪組之
耕地崩出し右谷川湛留之儀先般先御届申上侯其砌見分差
出候処廣大之場所抜崩二而迚も堀割手段無御座候間無拠其儘
現代語訳
（前頁からの続き）鳴動および震動が止まず、何とも心配な状況で、甚だ心を痛めております。詳細については、追って調査の上申し上げるべきところですが、まずはこの段を先にご報告申し上げます。以上
四月十八日
真田信濃守
先般ご報告申し上げました、私の領分である信州更級郡山平林村の内、岩倉山の山崩れによって犀川が堰き止められていた場所が、四月十三日の夕方に一時に決壊し、川中島一帯が洪水となりました。これにより、川上の方は次第に平常の水位に戻るかと思っておりましたところ、巨石が多く残っているため、予想外に水位が下がらず、今もなお平常水位より五丈余りも水が溜まっており、川沿いの村々の低地では、居宅・耕地ともに水中に没しております。その上、右の川筋のあちこちで山崩れにより土砂が押し埋めているため、山間部から川中島にかけての川筋一帯で川床が高くなり、難渋している状況です。また、先般ご報告申し上げました、同郡鹿谷村・日名村の地で、松平丹波守領分との境にある「高地川」と申す山沢の両岸が崩落し、沢水が堰き止められている件につき、その押し埋められた場所を深さ二丈ほど堀割（掘り開く）させようとしましたが、両岸の土砂が崩れ埋まるため、どうにも堀割が進まない状況です。ところが次第に水嵩が増し、去る（先）月二十八日より水が流れ出してはおりますが、この上さらに一時に決壊して犀川へ押し出した場合には、前述のとおり、まだ水が溜まっている状況の上にさらに加わることになり、川沿いの村々がいかほどの水害に及ぶか、一同恐怖しており、甚だ心を痛めております。また、右の鹿谷村地内の荒間沢と申す谷川に、同村内の柳窪組の耕地が崩れ出て、右の谷川を堰き止めている件については、先般ご報告申し上げ、その際に見分の者を差し出したところ、広大な場所が崩落しており、とても堀割する手段がなく、やむを得ずそのまま（以下次頁へ続く）
英語訳
(Continued from the previous page) The rumbling and tremors have not ceased, and we find ourselves in an exceedingly worrying situation, causing us great anguish. While the full details shall be reported once a thorough investigation has been completed, we hereby submit this preliminary notification. Respectfully submitted.
Eighteenth day of the Fourth Month
Sanada Shinano-no-Kami
As we previously reported, the site where the Sai River (犀川) had been dammed by the landslide at Mt. Iwakura, within Yamahirabayashi Village in Sarashina District, Shinano Province — part of my domain — suddenly burst on the evening of the thirteenth day of the Fourth Month, causing a great flood across the entire Nakajima plain (川中島). We had hoped that the water upstream would gradually return to its normal level; however, due to the large number of boulders remaining, the water level has not receded as expected, and even now remains more than five jō above its normal level. In the low-lying areas along the river, both dwellings and farmland remain submerged. Furthermore, as landslides have deposited sand and rocks along various points of this river course, the riverbed has risen throughout the stretch from the mountain areas down to the Nakajima plain, causing considerable hardship.
Regarding the matter previously reported — namely, that both banks of a mountain ravine called "Kōchigawa" (高地川), located on the border with the domain of Matsudaira Tamba-no-Kami, within the villages of Shikatani (鹿谷村) and Hinna (日名村) in the same district, had collapsed and dammed the stream — we attempted to excavate a channel approximately two jō in depth at the point of the blockage; however, as the soil from both banks continued to collapse and fill in the excavation, the work could not proceed adequately. Despite this, the water level has gradually risen, and since the twenty-eighth day of last month the water has begun to flow over the obstruction. Should the dam now burst all at once and rush into the Sai River, the situation described above would be further compounded, and we tremble with fear at what manner of flood disaster might befall the villages along that river — this causes us tremendous anguish.
Furthermore, regarding the matter previously reported — that the farmland of Yanagikubo-gumi, within Shikatani Village, had collapsed into a valley stream called Aramasa-zawa in the same village's territory and was damming that stream — we dispatched an inspection team at the time of the initial report, and they found that the landslide covered a vast area, making any excavation entirely impractical. We were therefore left with no choice but to leave it as it was (continued on the next page).