月 日 ダム水位
(EL m)
有効
貯水率
(%) 
  放流量
(m3/s) 
  日雨量
(mm/日)
 備考
11/7 496.66 32.3 1.25 9  
11/6 496.68 32.4 1.23 8  
11/5 496.71 32.4 1.20 2  
11/4 496.71 32.4 1.20 0  
11/3 496.62 32.2 1.20 0  
11/2 496.30 31.2 1.20 37  
11/1 496.34 31.3 1.15 0  
10/31 496.47 31.7 1.11 0  
10/30 496.45 31.6 1.00 22  
10/29 496.38 31.4 1.00 7  
10/28 496.47 31.7 1.00 10  
10/27 496.56 32.0 1.00 3  
10/26 496.67 32.3 1.00 0  
10/25 496.78 32.7 0.99 0  
10/24 496.89 33.0 0.96 0  
10/23 496.96 33.2 0.86 0  
10/22 497.02 33.4 0.88 0  
10/21 497.09 33.6 1.01 0  
10/20 497.22 34.0 1.18 1  
10/19 497.35 34.4 1.19 3  
10/18 497.48 34.8 1.19 0  
10/17 497.60 35.2 1.19 0  
10/16 497.71 35.6 1.19 1  
10/15 497.81 35.9 1.19 0  
10/14 497.90 36.2 1.18 0  
10/13 497.97 36.4 1.19 0  
10/12 498.00 36.5 1.20 0  
10/11 497.98 36.4 1.07 1  
10/10 497.83 36.0 1.02 0  
10/9 497.49 34.9 1.07 24  
10/8 497.22 34.0 0.90 20  
10/7 497.18 33.9 1.03 6  
10/6 497.31 34.3 1.20 0  
10/5 497.45 34.8 1.20 0  
10/4 497.53 35.0 1.07 15  
10/3 497.58 35.2 0.84 2  
10/2 497.57 35.1 0.74 0  
10/1 497.58 35.2 1.02 0  
9/30 497.68 35.5 1.18 0  
9/29 497.78 35.8 1.18 0  
9/28 497.87 36.1 1.20 0  
9/27 497.93 36.3 1.20 0  
9/26 497.93 36.3 1.20 7  
9/25 497.94 36.3 1.20 0  
9/24 497.88 36.1 1.20 1  
9/23 497.70 35.5 1.20 9  
9/22 497.48 34.8 1.20 14  
9/21 497.26 34.2 1.20 20  
9/20 497.18 33.9 1.06 3  
9/19 496.90 33.0 0.99 48  
9/18 496.72 32.5 0.99 0  
9/17 496.84 32.8 0.99 0  
9/16 496.95 33.2 0.99 2  
9/15 497.02 33.4 0.99 18  
9/14 497.13 33.7 0.99 0  
9/13 497.25 34.1 0.99 1  
9/12 497.36 34.5 0.99 5  
9/11 497.47 34.8 0.99 0  
9/10 497.58 35.2 0.99 0 かんがい期終了 
9/9 497.68 35.5 0.99 5  
9/8 497.75 35.7 0.99 6  
9/7 497.85 36.0 0.99 0  
9/6 497.95 36.3 0.99 0  
9/5 498.04 36.6 0.99 0  
9/4 498.13 36.9 0.99 0  
9/3 498.22 37.2 0.99 0  
9/2 498.30 37.5 1.11 0  
9/1 498.43 37.9 1.29 0  
8/31 498.57 38.4 1.29 2  
8/30 498.67 38.7 1.29 9 減水 
8/29 498.75 38.9 1.50 5  
8/28 499.00 39.8 1.79 0  
8/27 499.26 40.6 1.80 0  
8/26 499.47 41.3 1.87 0  
8/25 499.57 41.7 1.97 50  
8/24 499.85 42.6 1.98 14  
8/23 500.15 43.6 1.99 0  
8/22 500.45 44.7 1.99 0  
8/21 500.74 45.7 2.00 0  
8/20 501.02 46.7 2.00 1  
8/19 501.28 47.6 2.00 8  
8/18 501.53 48.5 2.00 0  
8/17 501.75 49.3 2.00 2  
8/16 501.93 49.9 1.87 2  
8/15 502.03 50.3 1.80 0  
8/14 502.12 50.6 1.80 1  
8/13 502.06 50.4 1.88 7  
8/12 502.21 51.0 2.00 0  
8/11 502.34 51.5 2.00 0  
8/10 502.41 51.7 2.00 0  
8/9 502.33 51.4 1.66 0  
8/8 501.76 49.3 1.30 0  
8/7 499.46 41.3 1.68 75  
8/6 499.09 40.1 1.80 2  
8/5 499.36 41.0 1.88 2  
8/4 499.64 41.9 2.00 23  
8/3 499.97 43.0 2.00 0  
8/2 500.28 44.1 1.91 0  
8/1 500.52 44.9 1.79 0  
7/31 500.63 45.3 1.79 10  
7/30 500.74 45.7 1.79 5  
7/29 500.99 46.5 1.80 0  
7/28 501.23 47.4 1.80 3  
7/27 501.49 48.3 1.80 1  
7/26 501.74 49.2 1.79 0  
7/25 501.95 50.0 1.49 2 番水解除 
7/24 502.00 50.2 1.04 3  
7/23 501.93 49.9 0.92 11  
7/22 501.87 49.7 0.87 0  
7/21 501.80 49.5 0.95 0  
7/20 501.69 49.1 0.79 0  
7/19 501.43 48.1 0.47 2  
7/18 501.04 46.7 0.39 1  
7/17 500.52 44.9 0.41 16  
7/16 499.99 43.1 0.34 5  
7/15 499.07 42.5 0.66 17  
7/14 498.52 40.0 1.09 26  
7/13 498.42 38.2 0.91 0  
7/12 498.11 37.9 0.56 5  
7/11 497.68 36.9 0.65 5  
7/10 497.20 35.5 1.01 28  
7/9 496.98 33.3 0.90 9  
7/8 496.69 32.4 1.06 19  
7/7 496.72 32.5 1.23 0  
7/6 496.68 32.4 1.20 19  
7/5 496.74 32.5 1.20 6  
7/4 496.84 32.8 1.12 17  
7/3 496.77 32.6 1.00 8  
7/2 496.93 33.1 1.00 0  
7/1 497.07 33.6 1.00 5  
6/30 497.20 34.0 1.00 1  
6/29 497.36 34.5 1.00 0  
6/28 497.51 34.9 1.05 4  
6/27 497.69 35.5 1.14 0  
6/26 497.89 36.2 1.08 0  
6/25 498.04 36.6 1.27 0 番水開始
6/24 498.36 37.7 1.79 1  
6/23 498.67 38.7 1.79 16  
6/22 499.02 39.8 1.79 0  
6/21 499.39 41.1 1.79 0  
6/20 499.76 42.3 1.79 0  
6/19 500.11 43.5 1.79 0  
6/18 500.43 44.6 1.79 11  
6/17 500.76 45.7 1.79 0  
6/16 501.09 46.9 1.79 5  
6/15 501.43 48.1 1.80 0  
6/14 501.76 49.3 1.80 0  
6/13 501.81 50.5 1.80 1  
6/12 502.41 51.7 1.80 0  
6/11 502.73 52.9 1.80 0  
6/10 503.04 54.1 1.84 1  
6/9 503.36 55.4 1.90 0  
6/8 503.69 56.7 1.90 0  
6/7 504.00 57.9 1.70 0  
6/6 504.23 58.8 1.50 0  
6/5 504.44 59.7 1.50 0  
6/4 504.63 60.5 1.50 3  
6/3 504.82 61.2 1.58 1  
6/2 505.01 62.0 1.70 17  
6/1 505.25 63.0 1.70 0  
5/31 505.49 64.0 1.54 3  
5/30 505.68 64.8 1.50 0  
5/29 505.85 65.5 1.24 4  
5/28 505.87 65.6 1.36 22  
5/27 506.10 66.6 2.00 0  
5/26 506.42 68.0 2.00 0  
5/25 506.73 69.3 2.00 0  
5/24 507.00 70.5 1.53 0  
5/23 507.15 71.1 1.38 0  
5/22 507.33 71.9 1.50 0  
5/21 507.50 72.7 1.50 0  
5/20 507.65 73.3 1.95 17  
5/19 507.99 74.8 2.69 0  
5/18 508.42 76.8 2.69 0  
5/17 508.82 78.6 2.37 0  
5/16 509.12 80.0 2.23 1  
5/15 509.44 81.5 2.40 0  
5/14 509.77 83.0 2.40 0  
5/13 510.07 84.5 2.87 21  
5/12 510.54 86.7 3.39 0  
5/11 511.05 89.2 3.40 0  
5/10 511.69 92.3 2.99 0  
5/9 511.96 93.7 3.00 1  
5/8 512.32 95.5 2.29 1  
5/7 512.53 96.5 2.00 7  
5/6 512.72 97.5 2.00 0  
5/5 512.91 98.5 1.66 0  
5/4 513.03 99.1 1.50 0  
5/3 513.13 99.6 1.50 0  
5/2 513.20 100.0 1.40 0  
5/1 513.21 100.0 1.46 0  
4/30 513.20 100.0 1.17 0  
4/29 513.21 100.0 1.41 0  
4/28 513.21 100.0 1.57 0  
4/27 513.21 100.0 1.67 0  
4/26 513.21 100.0 1.50 0  
4/25 513.20 100.0 1.51 0  
4/24 513.20 100.0 1.73 7  
4/23 513.20 100.0 1.67 0  
4/22 513.20 100.0 1.77 0  
4/21 513.20 100.0 1.88 0  
4/20 513.20 100.0 1.80 0  
4/19 513.20 100.0 1.97 0  
4/18 513.20 100.0 2.12 0  
4/17 513.21 100.0 2.52 2  
4/16 513.21 100.0 2.62 0  
4/15 513.22 100.1 3.05 0  
4/14 513.22 100.1 3.05 0  
4/13 513.22 100.1 3.16 0  
4/12 513.22 100.1 3.25 0  
4/11 513.22 100.1 3.37 0  
4/10 513.23 100.1 4.89 0  
4/9 513.26 100.3 8.58 26  
4/8 513.24 100.2 5.90 5  
4/7 513.24 100.2 5.83 0  
4/6 513.23 100.1 4.12 0  
4/5 513.23 100.1 3.95 0  
4/4 513.23 100.1 4.47 1  
4/3 513.19 99.9 2.97 8 満水位
4/2 513.05 99.2 2.83 0  
4/1 512.77 97.8 3.25 3  
3/31 512.54 97.0 4.02 1  
3/30 512.29 95.3 4.02 0  
3/29 511.77 92.7 2.72 11  
3/28 511.42 91.0 2.08 0  
3/27 511.19 89.9 2.14 1  
3/26 510.60 87.0 1.54 40  
3/25 510.15 84.8 1.30 0  
3/24 509.99 84.1 1.29 0  
3/23 509.99 84.1 1.29 2  
3/22 510.01 84.2 1.29 0  
3/21 509.99 84.1 1.08 8  
3/20 509.85 83.4 0.80 5  
3/19 509.67 82.6 0.79 0  
3/18 509.40 81.3 0.86 5  
3/17 509.07 79.8 0.95 7  
3/16 508.89 78.9 0.95 0  
3/15 508.79 78.5 0.93 0  
3/14 508.76 78.3 0.94 3  
3/13 508.76 78.3 0.99 3  
3/12 508.73 78.2 0.95 17  
3/11 508.71 78.1 0.93 0  
3/10 508.73 78.2 0.99 0  
3/9 508.73 78.2 0.99 6  
3/8 508.71 78.1 0.94 1  
3/7 508.69 78.0 0.97 0  
3/6 508.68 78.0 1.00 8  
3/5 508.64 77.8 1.00 7  
3/4 508.60 77.6 1.07 9  
3/3 508.58 77.5 1.19 9  
3/2 508.57 77.5 1.19 5  
3/1 508.52 77.2 1.09 15