Hazard Map[English version]
How to Read Hazard Maps (Inland Flooding and River Flooding)
How to Read Hazard Maps (PDFファイル: 654.5KB)
Flood and Landslide Hazard Map (Created March 2025)
Flood and Landslide Hazard Maps show the inundation areas and depths that would occur if major rivers like the Chikuma River overflowed their banks (breached their levees) due to the largest possible rainfall event (assumed maximum rainfall: roughly a once-in-a-thousand-years rainfall amount), as simulated by inundation modeling. They also display landslide hazard warning zones and special warning zones.
Check the conditions for your own area and consider safe locations and evacuation routes in advance to protect yourself from disasters caused by heavy rain.
1【Floods and landslides】Yashiro and Amenomiya districts (PDFファイル: 3.7MB)
3【Floods and landslides】Inariyama, Kuwabara, and Yawata districts (PDFファイル: 5.0MB)
5【Floods and landslides】Kamiyamada District (PDFファイル: 3.5MB)
Disaster Prevention Map (Created March 2025)
Disaster prevention maps show facilities used for disaster prevention, such as evacuation shelters and fire hydrants.
1【Disaster Prevention】 Yashiro and Amenomiya districts (PDFファイル: 3.2MB)
3【Disaster Prevention】Inariyama, Kuwabara, and Yawata districts (PDFファイル: 3.3MB)
5【Disaster Prevention】Kamiyamada District (PDFファイル: 3.2MB)
Inland Flood Hazard Map (Created March 2025)
The inland flood hazard map uses flood simulation to show the inundation areas and flood depths expected when the maximum conceivable rainfall (equivalent to approximately a once-in-a-millennium rainfall event) exceeds the stormwater drainage capacity of the sewer system, resulting in inland flooding.
1【Inland Flood】Yashiro and Amenomiya districts (PDFファイル: 6.1MB)
3【Inland Flood】Inariyama, Kuwabara, and Yawata districts (PDFファイル: 8.1MB)
4【Inland Flood】Togura, Sarashina, and Goka districts (Kamitokuma and Senbonyanagi) (PDFファイル: 7.9MB)
この記事に関するお問い合わせ先
危機管理防災課
〒387-8511
長野県千曲市杭瀬下二丁目1番地
電話番号:026-273-1111
お問い合わせフォーム
更新日:2025年06月12日