Republic of the Philippines
DEPARTMENT OF PUBLIC WORKS AND HIGHWAY
REGIONAL OFFICE XI
R. Magsaysay Avenue cor. Gov. Chavez St., Davao City
DISCHARGE MEASUREMENTS
2003-2024
River Gaging Station: DAVAO RIVER
Location: Lacson, Calinan, Davao City
Actual Table Shift
NO. DATE WIDTH AREA VEL GH DISCH GH DISCH Adj. %Diff REMARKS
(Meters) (Sq.M.) (M/Sec) (Meters) (Li./Sec)
1 01-Jul-03 87.50 79.378 1.448 1.78 114,924.00
2 15-Aug-03 71.00 73.533 1.618 1.82 118,968.00
3 10-Sep-03 69.00 60.315 0.977 1.42 58,954.00
4 10-Oct-03 71.50 76.845 1.386 1.56 106,512.00
5 25-Nov-03 66.50 55.733 0.837 1.20 46,650.00
6 22-Mar-04 67.00 51.825 0.804 1.16 41,683.00
7 28-Apr-04 58.00 51.053 0.752 1.06 38,414.00
8 15-May-04 69.00 61.930 0.922 1.32 57,089.00
9 25-Jun-04 69.00 67.970 0.874 1.36 59,427.00
10 12-Aug-04 65.20 69.819 0.897 1.26 62,595.00
11 13-Oct-04 69.00 60.488 0.974 1.42 58,943.00
12 24-Nov-04 64.00 69.660 0.893 1.25 62,230.00
13 17-Dec-04 69.50 64.540 1.356 1.56 87,506.00
14 28-Jan-05 59.00 47.323 0.758 1.16 35,873.00
15 16-Feb-05 67.00 41.998 1.054 1.06 44,276.00
16 29-Jul-05 64.00 74.605 1.254 1.18 93,519.00
17 18-Oct-05 71.00 73.873 1.645 1.86 121,523.00
18 30-Nov-05 64.00 69.240 0.893 1.24 61,860.00
19 19-Dec-05 70.00 70.218 1.051 1.40 73,801.00
20 16-Jan-06 59.00 47.400 0.757 1.16 35,867.00
21 24-Feb-06 69.00 62.358 0.933 1.34 58,205.00
22 21-Apr-06 77.00 39.225 0.543 1.08 21,311.00
23 31-May-06 70.00 57.585 1.194 1.58 68,738.00
24 30-Jul-06 78.50 54.940 0.673 1.14 36,017.00
25 30-Aug-06 64.00 38.335 1.669 1.72 64,017.00
26 28-Sep-06 68.00 67.405 0.947 1.46 63,837.00
27 11-Oct-06 76.50 59.458 1.075 1.22 63,922.00
28 23-Nov-06 76.50 59.490 1.075 1.22 63,927.00
29 20-Dec-06 66.50 46.741 0.867 1.19 40,517.00
30 26-Jan-07 70.50 62.753 0.929 1.34 58,306.00
31 28-Feb-07 74.80 56.070 0.976 1.25 54,719.00
32 30-Apr-07 72.50 32.890 1.169 1.34 38,433.00
33 17-May-07 67.00 67.285 0.924 1.46 62,172.00
34 14-Jun-07 68.00 57.060 1.205 1.58 68,741.00
35 30-Jul-07 70.00 50.740 1.258 1.57 63,849.00
36 16-Aug-07 70.00 31.955 1.097 1.33 35,062.00
37 14-Sep-07 71.00 33.190 1.157 1.23 38,402.00
38 10-Oct-07 69.00 31.518 1.110 1.32 34,972.00
39 23-Nov-07 67.80 68.229 0.949 1.50 64,729.00
40 11-Jan-08 66.50 66.885 0.924 1.45 61,806.00
41 08-Feb-08 69.50 43.625 0.676 1.00 29,499.00
42 03-Mar-08 73.50 33.500 1.038 1.33 34,763.00
43 17-Apr-08 72.90 33.449 1.048 1.34 34,993.00
44 27-May-08 74.00 33.545 1.039 1.34 34,855.00
45 17-Jul-08 67.50 67.110 0.921 1.45 61,779.00
46 13-Aug-08 79.60 127.797 1.976 2.73 252,544.00
47 18-Aug-08 68.00 68.080 0.949 1.50 64,599.00
48 20-Nov-08 73.50 73.356 1.254 1.37 91,967.00
49 19-Mar-08 69.00 78.280 0.991 1.64 77,609.00
50 06-Aug-09 74.00 73.598 1.253 1.37 92,225.00
51 16-Jul-09 73.00 38.420 1.322 1.43 50,789.00
52 17-Aug-09 70.00 78.545 0.998 1.64 77,996.00
53 23-Sep-09 70.00 54.845 0.945 1.38 51,828.00
54 27-Oct-09 70.00 43.290 1.224 1.52 52,966.00
55 23-Nov-09 71.00 78.720 0.991 1.64 78,028.00
56 21-Jan-10 69.00 58.370 1.264 1.50 73,765.00
57 25-Mar-10 68.00 45.770 1.226 1.18 56,092.00
58 08-Apr-10 68.50 49.548 0.825 1.46 40,889.00
59 07-May-10 68.00 49.440 0.827 1.46 40,882.80
60 23-Jun-10 68.00 69.650 1.328 1.44 92,465.20
Page 1 of 4
Republic of the Philippines
DEPARTMENT OF PUBLIC WORKS AND HIGHWAY
REGIONAL OFFICE XI
R. Magsaysay Avenue cor. Gov. Chavez St., Davao City
DISCHARGE MEASUREMENTS
2003-2024
River Gaging Station: DAVAO RIVER
Location: Lacson, Calinan, Davao City
Actual Table Shift
NO. DATE WIDTH AREA VEL GH DISCH GH DISCH Adj. %Diff REMARKS
(Meters) (Sq.M.) (M/Sec) (Meters) (Li./Sec)
61 14-Jul-10 70.00 60.170 1.633 1.66 98,265.40
62 07-Oct-10 70.00 54.513 1.427 1.42 77,778.50
63 12-Nov-10 70.00 70.160 1.228 1.30 86,136.30
64 27-Jan-11 70.50 48.539 1.174 1.50 57,003.00
FLOAT 31-Mar-11 71.00 54.929 0.350 1.50 19,220.00
65 18-Apr-11 66.00 37.962 0.927 1.15 35,198.00
FLOAT 17-May-11 66.00 47.740 0.893 1.14 42,610.20
FLOAT 27-Jul-11 67.50 68.200 1.303 1.32 88,874.80
FLOAT 30-Oct-11 67.00 53.408 0.720 1.29 38,436.40
FLOAT 28-Nov-11 67.00 55.405 1.132 1.32 62,731.70
FLOAT 19-Dec-11 62.00 70.685 1.191 1.40 84,176.00
FLOAT 13-Jan-12 85.00 54.550 0.955 1.29 52,098.90
66 21-Feb-12 70.50 60.443 1.224 1.39 73,971.80
67 28-May-12 70.00 87.220 1.620 1.74 141,294.60
68 27-Jun-12 70.00 61.563 0.291 1.35 17,918.30
69 06-Jul-12 70.00 59.365 1.510 1.56 89,652.80
70 04-Aug-12 69.00 49.450 1.057 1.63 52,276.80
71 24-Oct-12 73.00 89.385 1.699 1.33 151,854.00
72 10-Nov-12 67.00 37.950 0.633 1.19 24,015.10
74 27-Feb-13 67.00 88.060 1.817 1.54 160,008.00
74 06-Mar-13 67.00 87.660 1.393 1.32 122,078.00
75 07-Apr-13 68.00 21.380 1.224 1.19 26,183.00
76 22-May-13 70.00 81.910 1.371 1.38 112,320.00
77 26-Jun-13 70.00 81.400 1.468 1.40 119,555.00
78 13-Jul-13 72.00 109.770 0.323 1.64 35,476.00
79 31-Aug-13 74.00 49.990 1.276 1.12 63,808.00
80 26-Sep-13 75.00 46.420 0.855 1.80 39,698.00
81 27-Jan-14 71.00 81.260 1.430 1.32 116,204.00
82 08-Feb-14 70.00 28.630 1.097 1.28 31,414.00
83 24-May-14 69.00 59.450 1.606 1.42 95,521.00
FLOAT 14-Jun-14 76.00 101.710 1.889 1.80 192,122.00
86 11-Jul-14 74.00 90.680 1.746 1.89 158,346.00
87 13-Oct-14 67.00 62.730 1.632 1.33 102,386.00
88 11-Feb-15 75.00 38.778 1.346 1.01 44,373.00
89 20-Mar-15 62.00 47.473 1.125 0.90 49,081.00
90 15-May-15 51.00 43.915 0.682 1.96 29,922.00
91 27-Jul-15 80.00 50.520 1.300 1.50 66,798.00
92 12-Nov-15 85.00 64.680 2.572 1.21 141,024.00
FLOAT 30-Jan-16 - 148.257 1.454 0.98 183,166.00
FLOAT 15-Feb-16 - 161.460 1.953 1.16 268,049.00
FLOAT 11-Mar-16 - 22.792 1.471 0.88 28,490.00
FLOAT 11-Apr-16 - 157.640 1.543 1.10 206,781.00
FLOAT 20-May-16 - 29.044 2.016 1.02 49,773.00
FLOAT 28-Jun-16 - 109.145 3.125 2.00 289,916.00
FLOAT 18-Jul-16 - 58.761 2.119 1.18 105,820.00
FLOAT 16-Aug-16 - 83.183 1.678 0.95 118,633.00
FLOAT 07-Sep-16 - 58.761 2.381 1.18 118,921.00
FLOAT 07-Nov-16 - 56.097 2.432 0.90 115,982.00
FLOAT 23-Jan-17 - 36.100 3.521 1.43 108,046.00
FLOAT 06-Mar-17 - 19.356 2.660 1.10 43,757.00
FLOAT 26-Apr-17 - 16.347 1.799 0.68 24,990.00
FLOAT 23-May-17 - 24.241 2.968 1.30 61,165.00
FLOAT 27-Jun-17 - 16.347 2.538 0.90 35,269.00
FLOAT 12-Jul-17 - 30.392 2.885 1.36 74,533.00
FLOAT 22-Aug-17 - 34.256 1.875 0.66 54,602.00
FLOAT 14-Sep-17 - 25.227 2.016 0.70 43,231.10
FLOAT 25-Oct-17 - 40.005 2.239 0.78 76,119.40
9 24-Nov-17 85.00 82.000 1.511 0.76 125,491.00
10 13-Dec-17 80.00 55.075 1.349 0.88 73,335.00
FLOAT 09-Jan-18 - 55.500 2.273 1.10 107,215.00
Page 2 of 4
Republic of the Philippines
DEPARTMENT OF PUBLIC WORKS AND HIGHWAY
REGIONAL OFFICE XI
R. Magsaysay Avenue cor. Gov. Chavez St., Davao City
DISCHARGE MEASUREMENTS
2003-2024
River Gaging Station: DAVAO RIVER
Location: Lacson, Calinan, Davao City
Actual Table Shift
NO. DATE WIDTH AREA VEL GH DISCH GH DISCH Adj. %Diff REMARKS
(Meters) (Sq.M.) (M/Sec) (Meters) (Li./Sec)
12 21-Feb-18 83.00 73.325 1.032 0.08 60,869.00
13 21-Mar-18 75.00 55.269 0.994 0.80 43,854.00
14 12-Apr-18 84.00 70.575 0.914 0.68 51,275.00
15 03-May-18 77.00 81.913 1.272 0.80 82,070.00
16 08-Jun-18 81.50 75.138 1.082 0.82 68,229.00
17 13-Jul-18 82.00 97.163 1.333 0.90 114,126.00
FLOAT 22-Aug-18 - 637.340 1.760 0.65 95,323.00
FLOAT 14-Sep-18 - 107.790 2.688 1.50 246,295.00
FLOAT 09-Oct-18 - 70.288 1.866 0.78 111,464.00
21 20-Nov-18 73.50 57.631 1.111 0.72 52,450.00
22 07-Dec-18 116.00 102.425 1.333 0.72 84,232.00
23 24-Jan-19 95.00 105.425 1.215 0.88 101,198.00
24 19-Feb-19 88.00 91.385 1.225 0.70 83,818.00
25 30-Mar-19 88.00 62.223 1.101 0.62 66,297.00
26 05-Apr-19 89.00 90.400 0.864 0.56 68,247.00
27 07-May-19 89.00 90.653 1.145 0.76 84,766.00
28 14-Jun-19 23.00 26.433 1.113 1.10 27,009.00
29 17-Jul-19 95.00 96.436 0.845 0.96 74,374.00
30 21-Aug-19 82.00 97.163 0.972 0.96 80,233.00
31 12-Sep-19 95.00 107.405 1.102 0.95 94,756.00
FLOAT 16-Oct-19 - 83.916 1.096 0.94 78,167.00
FLOAT 20-Nov-19 - 171.666 1.089 2.60 158,909.00
FLOAT 03-Dec-19 - 39.340 0.767 0.50 25,640.00
35 21-Jan-20 67.00 57.101 0.655 0.54 37,340.00
36 06-Feb-20 69.00 59.344 0.513 0.50 30,120.00
FLOAT 04-Mar-20 - 44.927 1.750 0.63 66,823.00
FLOAT 27-May-20 - 39.340 0.763 0.50 25,502.00
FLOAT 01-Jun-20 - 52.058 1.774 0.78 78,479.00
40 21-Jul-20 69.00 81.348 0.915 0.90 73,570.00
FLOAT 11-Aug-20 - 52.058 1.582 0.78 69,979.00
42 08-Sep-20 65.00 66.740 0.686 0.58 45,140.00
FLOAT 06-Oct-20 - 110.696 2.585 1.80 243,207.00
44 10-Nov-20 66.00 83.500 0.994 0.80 81,670.00
45 07-Dec-20 69.00 77.018 0.858 0.92 70,409.00
46 07-Jan-21 69.00 91.745 1.063 1.00 95,090.00
47 02-Feb-21 66.00 74.515 0.932 1.04 78,279.00
48 25-Mar-21 66.00 58.785 1.121 0.72 65,910.00
FLOAT 16-Apr-21 - 70.293 2.011 1.10 120,171.00
FLOAT 07-May-21 - 39.340 1.331 0.50 44,512.00
FLOAT 09-Jun-21 - 95.852 2.811 1.58 229,015.00
52 05-Jul-21 66.00 61.580 0.888 0.72 54,660.00
53 02-Aug-21 96.00 50.410 0.823 0.52 41,480.00
54 05-Jul-21 66.00 61.580 0.888 0.72 54,660.00
55 02-Aug-21 96.00 50.410 0.823 0.52 41,480.00
FLOAT 02-Sep-21 - 81.342 2.225 1.32 153,838.00
57 18-Oct-21 95.00 57.850 1.072 0.00 62,040.00
FLOAT 11-Nov-21 - 78.283 1.491 1.26 99,213.00
FLOAT 07-Dec-21 - 44.497 1.469 0.62 55,542.00
FLOAT 04-Jan-22 - 34.405 1.498 0.62 43,821.00
FLOAT 07-Feb-22 - 34.090 1.125 0.60 32,590.00
FLOAT 08-Mar-22 - 116.483 2.305 2.00 228,240.47
FLOAT 27-Apr-22 - 43.557 1.909 1.20 70,660.00
FLOAT 19-May-22 - 35.667 1.452 0.70 44,009.00
FLOAT 21-Jun-22 - 43.557 2.157 1.20 79,862.00
FLOAT 13-Jul-22 - 42.294 2.180 1.12 78,384.00
FLOAT 17-Aug-22 - 48.290 2.369 1.50 97,257.00
FLOAT 02-Sep-22 - 37.561 2.132 0.82 68,080.00
62 05-Oct-22 100.00 73.375 0.709 0.76 52,050.00
FLOAT 02-Nov-22 - 51.671 1.190 0.62 52,251.00
63 06-Dec-22 95.00 61.119 0.892 0.50 54,510.00
Page 3 of 4
Republic of the Philippines
DEPARTMENT OF PUBLIC WORKS AND HIGHWAY
REGIONAL OFFICE XI
R. Magsaysay Avenue cor. Gov. Chavez St., Davao City
DISCHARGE MEASUREMENTS
2003-2024
River Gaging Station: DAVAO RIVER
Location: Lacson, Calinan, Davao City
Actual Table Shift
NO. DATE WIDTH AREA VEL GH DISCH GH DISCH Adj. %Diff REMARKS
(Meters) (Sq.M.) (M/Sec) (Meters) (Li./Sec)
2023-01 04-Jan-23 - 159.668 1.502 2.00 203,866.00
2023-02 06-Feb-23 - 56.443 1.199 0.64 57,512.00
2023-03 16-Mar-23 100.00 67.425 1.502 0.72 48,837.00
2023-04 03-Apr-23 - 59.945 1.275 0.73 64,948.00
2023-05 09-May-23 64.00 65.825 1.135 0.60 56,791.00
2023-06 07-Jun-23 64.00 74.067 1.145 1.00 72,019.00
2023-07 10-Jul-23 - 88.589 1.827 1.10 137,591.00
2023-08 08-Aug-23 - 74.613 1.827 0.42 74,613.00
2023-09 05-Sep-23 - 54.533 1.558 0.59 72,202.00
2023-10 06-Oct-23 - 65.918 1.568 0.88 87,872.00
2023-11 08-Nov-23 - 64.724 1.216 0.85 66,925.00
2023-12 07-Dec-23 - 78.004 1.193 0.90 79,106.00
2024-01 24-Jan-24 66.58 55.300 1.367 0.61 75,560.00
2024-02 15-Feb-24 62.91 59.550 1.401 0.72 83,400.00
2024-03 06-Mar-24 13.46 53.390 1.063 0.56 56,730.00
2024-04 12-Apr-24 62.91 44.980 0.800 0.34 35,980.00
2024-05 15-May-24 62.91 42.310 0.812 0.27 34,340.00
2024-06 18-Jun-24 75.30 88.590 1.782 1.10 157,840.00
2024-07 03-Jul-24 66.58 62.730 1.158 0.80 72,610.00
2024-08 09-Aug-24 62.91 49.570 0.948 0.46 47,000.00
2024-09 02-Sep-24 62.91 54.920 1.579 0.60 86,720.00
2024-10 09-Oct-24 62.91 54.920 1.054 0.60 57,870.00
2024-11 06-Nov-24 62.91 60.340 1.089 0.74 65,720.00
2024-12 05-Dec-24 70.00 69.010 1.784 0.58 60,190.00
Prepared by : Checked by: Noted by :
NICKA ELLA M. METUCUA ANNELI ZOSAS-SALCEDO ROWENA P. JAMITO
Engineer II Engineer III Chief, Quality Assurance and
Hydrology Division
Page 4 of 4
