大町ダム(おおまちだむ)
水系
信濃川
河川
高瀬川
管理者
大町ダム管理所
所在地
長野県大町市大字平ナロヲ大クボ2112-71
目的
FNWP
型式
重力式コンクリート
洪水調節方式
一定率一定量調節
堤高(m)
107.0
堤頂長(m)
338.0
堤体積(千m3)
766.0
最低水位
(m)
(m)
861.90
平常時
最高貯水位(m)
最高貯水位(m)
900.00
洪水時
最高水位(m)
最高水位(m)
904.00
緊急放流(異常洪水時防災操作)
判断水位(m)
判断水位(m)
902.80
設計
最高水位(m)
最高水位(m)
-
予備放流水位
(10/01～05/31)(m)
(10/01～05/31)(m)
898.00
洪水貯留準備水位
(10/01～05/31)(m)
(10/01～05/31)(m)
900.00
洪水貯留操作開始流量
(m3/s)
(m3/s)
200.00
計画最大放流量
(m3/s)
(m3/s)
400.00
流域面積
(km2)
(km2)
193.00
雨量観測所情報
現在の状況(2025/12/20 13:40)
貯水位
!889.80
m
全流入量
!!!0.72
m³/s
全放流量
!!!6.37
m³/s
10分雨量
----.--
mm
時間雨量
!!!1.60
mm
累加雨量
!!16.40
mm
| 時刻 | 貯水位 (m) |
全流入量 (m³/s) |
全放流量 (m³/s) |
時間 雨量 (mm) |
累加 雨量 (mm) |
|---|---|---|---|---|---|
| 12/20 13:00 | 889.81 | 2.04 | 6.40 | 1.60 | 16.00 |
| 12/20 12:00 | 889.83 | 2.04 | 6.37 | 0.80 | 14.40 |
| 12/20 11:00 | 889.86 | 1.55 | 6.35 | 1.20 | 13.60 |
| 12/20 10:00 | 889.88 | 1.73 | 6.39 | 1.20 | 12.40 |
| 12/20 09:00 | 889.90 | 2.04 | 6.41 | 1.20 | 11.20 |
| 12/20 08:00 | 889.92 | 19.46 | 6.42 | 1.20 | 10.00 |
| 12/20 07:00 | 889.91 | 19.48 | 6.44 | 2.80 | 8.80 |
| 12/20 06:00 | 889.85 | 19.46 | 6.40 | 2.40 | 6.00 |
| 12/20 05:00 | 889.78 | 19.45 | 6.37 | 3.20 | 3.60 |
| 12/20 04:00 | 889.72 | 19.47 | 6.42 | 0.40 | 0.40 |
| 12/20 03:00 | 889.66 | 19.48 | 6.43 | 0.00 | 0.00 |
| 12/20 02:00 | 889.59 | 19.49 | 6.45 | 0.00 | 0.00 |
| 12/20 01:00 | 889.56 | 1.88 | 6.43 | 0.00 | 0.00 |
| 12/20 00:00 | 889.58 | 1.72 | 6.42 | 0.00 | 0.00 |
| 12/19 23:00 | 889.61 | 1.89 | 6.38 | 0.00 | 0.00 |
| 12/19 22:00 | 889.63 | 2.04 | 6.38 | 0.00 | 0.00 |
| 12/19 21:00 | 889.65 | 1.37 | 6.36 | 0.00 | 0.00 |
| 12/19 20:00 | 889.67 | 1.73 | 6.41 | 0.00 | 0.00 |
| 12/19 19:00 | 889.70 | 0.72 | 6.40 | 0.00 | 0.00 |
| 12/19 18:00 | 889.72 | 2.04 | 6.43 | 0.00 | 0.00 |
| 12/19 17:00 | 889.74 | 0.93 | 6.37 | 0.00 | 0.00 |
| 12/19 16:00 | 889.76 | 1.89 | 6.33 | 0.00 | 0.00 |
| 12/19 15:00 | 889.78 | 1.89 | 6.41 | 0.00 | 0.00 |
| 12/19 14:00 | 889.80 | 0.94 | 6.41 | 0.00 | 0.00 |
| 12/19 13:00 | 889.83 | 1.89 | 6.46 | 0.00 | 0.00 |
| 12/19 12:00 | 889.85 | 0.70 | 6.41 | 0.00 | 0.00 |
| 12/19 11:00 | 889.87 | 1.74 | 6.45 | 0.00 | 0.00 |
| 12/19 10:00 | 889.89 | 1.73 | 6.39 | 0.00 | 0.00 |
| 12/19 09:00 | 889.92 | 1.90 | 6.41 | 0.00 | 0.00 |
| 12/19 08:00 | 889.94 | 19.46 | 6.41 | 0.00 | 0.00 |
| 12/19 07:00 | 889.93 | 19.47 | 6.41 | 0.00 | 0.00 |
| 12/19 06:00 | 889.86 | 19.45 | 6.38 | 0.00 | 0.00 |
| 12/19 05:00 | 889.80 | 19.46 | 6.38 | 0.00 | 0.00 |
| 12/19 04:00 | 889.73 | 19.46 | 6.36 | 0.00 | 0.00 |
| 12/19 03:00 | 889.67 | 19.48 | 6.41 | 0.00 | 0.00 |
| 12/19 02:00 | 889.61 | 19.45 | 6.37 | 0.00 | 0.00 |
| 12/19 01:00 | 889.58 | 1.76 | 6.45 | 0.00 | 0.00 |
| 12/19 00:00 | 889.60 | 1.73 | 6.41 | 0.00 | 0.00 |
| 12/18 23:00 | 889.62 | 1.73 | 6.41 | 0.00 | 0.00 |
| 12/18 22:00 | 889.64 | 1.72 | 6.40 | 0.00 | 0.00 |
| 12/18 21:00 | 889.67 | 2.04 | 6.37 | 0.00 | 0.00 |
| 12/18 20:00 | 889.69 | 0.72 | 6.37 | 0.00 | 0.00 |
| 12/18 19:00 | 889.71 | 2.32 | 6.35 | 0.00 | 0.00 |
| 12/18 18:00 | 889.73 | 1.57 | 6.41 | 0.00 | 0.00 |
| 12/18 17:00 | 889.75 | 1.37 | 6.43 | 0.00 | 0.00 |
| 12/18 16:00 | 889.78 | 1.38 | 6.46 | 0.00 | 0.00 |
| 12/18 15:00 | 889.80 | 0.72 | 6.39 | 0.00 | 0.00 |
| 12/18 14:00 | 889.82 | 2.05 | 6.41 | 0.00 | 0.00 |
| 12/18 13:00 | 889.84 | 0.72 | 6.39 | 0.00 | 0.00 |
| 12/18 12:00 | 889.86 | 1.90 | 6.37 | 0.00 | 0.00 |
| 時刻 | 貯水位 (m) |
全流入量 (m³/s) |
全放流量 (m³/s) |
10分 雨量 (mm) |
累加 雨量 (mm) |
|---|---|---|---|---|---|
| 12/20 13:50 | - | - | - | - | - |
| 12/20 13:40 | 889.80 | 0.72 | 6.37 | - | 16.40 |
| 12/20 13:30 | 889.80 | 0.72 | 6.37 | - | 16.40 |
| 12/20 13:20 | 889.81 | 2.04 | 6.36 | - | 16.00 |
| 12/20 13:10 | 889.81 | 2.04 | 6.41 | - | 16.00 |
| 12/20 13:00 | 889.81 | 2.04 | 6.40 | - | 16.00 |
| 12/20 12:50 | 889.82 | 2.03 | 6.45 | - | 15.60 |
| 12/20 12:40 | 889.82 | 2.03 | 6.41 | - | 14.80 |
| 12/20 12:30 | 889.82 | 2.03 | 6.39 | - | 14.80 |
| 12/20 12:20 | 889.83 | 2.04 | 6.33 | - | 14.80 |
| 12/20 12:10 | 889.83 | 2.04 | 6.36 | - | 14.40 |
| 12/20 12:00 | 889.83 | 2.04 | 6.37 | - | 14.40 |
| 12/20 11:50 | 889.84 | 0.45 | 6.39 | - | 14.00 |
| 12/20 11:40 | 889.84 | 0.45 | 6.42 | - | 14.00 |
| 12/20 11:30 | 889.84 | 0.45 | 6.37 | - | 14.00 |
| 12/20 11:20 | 889.85 | 1.73 | 6.37 | - | 13.60 |
| 12/20 11:10 | 889.85 | 1.73 | 6.34 | - | 13.60 |
| 12/20 11:00 | 889.86 | 1.55 | 6.35 | - | 13.60 |
| 12/20 10:50 | 889.86 | 1.55 | 6.37 | - | 13.20 |
| 12/20 10:40 | 889.86 | 1.55 | 6.38 | - | 13.20 |
| 12/20 10:30 | 889.87 | 1.16 | 6.37 | - | 12.80 |
| 12/20 10:20 | 889.87 | 1.16 | 6.38 | - | 12.80 |
| 12/20 10:10 | 889.88 | 1.73 | 6.38 | - | 12.40 |
| 12/20 10:00 | 889.88 | 1.73 | 6.39 | - | 12.40 |
| 12/20 09:50 | 889.88 | 1.73 | 6.36 | - | 12.00 |
| 12/20 09:40 | 889.89 | 0.95 | 6.38 | - | 12.00 |
| 12/20 09:30 | 889.89 | 0.95 | 6.34 | - | 11.60 |
| 12/20 09:20 | 889.89 | 0.95 | 6.39 | - | 11.60 |
| 12/20 09:10 | 889.90 | 2.04 | 6.43 | - | 11.20 |
| 12/20 09:00 | 889.90 | 2.04 | 6.41 | - | 11.20 |
| 12/20 08:50 | 889.91 | 2.61 | 6.40 | - | 10.80 |
| 12/20 08:40 | 889.91 | 2.61 | 6.38 | - | 10.40 |
| 12/20 08:30 | 889.91 | 2.61 | 6.37 | - | 10.00 |
| 12/20 08:20 | 889.92 | 19.46 | 6.40 | - | 10.00 |
| 12/20 08:10 | 889.92 | 19.46 | 6.49 | - | 10.00 |
| 12/20 08:00 | 889.92 | 19.46 | 6.42 | - | 10.00 |
| 12/20 07:50 | 889.93 | 19.46 | 6.38 | - | 10.00 |
| 12/20 07:40 | 889.93 | 19.46 | 6.44 | - | 9.60 |
| 12/20 07:30 | 889.93 | 19.46 | 6.39 | - | 9.60 |
| 12/20 07:20 | 889.93 | 19.46 | 6.37 | - | 9.60 |
| 12/20 07:10 | 889.92 | 19.46 | 6.42 | - | 9.20 |
| 12/20 07:00 | 889.91 | 19.48 | 6.44 | - | 8.80 |
| 12/20 06:50 | 889.90 | 18.26 | 6.39 | - | 8.40 |
| 12/20 06:40 | 889.89 | 32.52 | 6.34 | - | 8.00 |
| 12/20 06:30 | 889.88 | 19.45 | 6.38 | - | 7.60 |
| 12/20 06:20 | 889.87 | 19.45 | 6.37 | - | 7.20 |
| 12/20 06:10 | 889.86 | 19.45 | 6.42 | - | 6.40 |
| 12/20 06:00 | 889.85 | 19.46 | 6.40 | - | 6.00 |
| 12/20 05:50 | 889.84 | 19.46 | 6.41 | - | 5.60 |
| 12/20 05:40 | 889.83 | 19.47 | 6.40 | - | 5.60 |
ダム番号(0埋め不要)・洪水調節方式の訂正はTwitterでお知らせください。
洪水調整方式について、記載箇所(URL)がある場合、その場所も教えて頂けると助かります。
まとめて情報を頂ける場合は、クラウドストレージ・メール等で送って貰えるとかなり助かります。