L&D17 6am Report THURSDAY 11 JUN 2026
LockMaster: Scott Cooper Flat Pool = 9.3 Flat Tail = 1.3 River Mile = 437.1
Asst: Randall (Ray) Meldrum DA = 99,600 mi^2 UNG LOC DA = 200 mi^2 %UNG LOC = 100%
Phone: (309) 587-8125 or (6217) Flood Stage = 15 Lock Closed = 18.2 Top of Lock = 21.3
8 Submrg Tainters (64') Gates #1-4, 8-11 LD16(2 hr) <- LD17 -> LD18(6 hr) Top of Spillway = 9.8
3 Submrg Rollers (100') Gates #5,6,7 Out of Operation = 8.6' = 80,000 cfs Swell Head = 0.3
Max Submrg Setting = -60.0 X -21.0 = 64,100 cfs Gage Zero = 533.79 TW cntrl > 8.0' GATE cntrl < 8.0'
6am Maximum Permissible Feet of Bulkhead = 101 Record Flood Stage = 25.90 in July 1993
M I 1 7 N B O I 2
Float Gage Wind Temp
Pool Tail Tnt Rlr Flow T Q/f R Q/f Pool Tail Pool Tail Spd Dir Gst Air Water Prec WAPI4
0000: 9.41 7.49 65.0 25.0 68.8 0.63 1.07 9.38 7.49 9.37 7.51 4 S 5 81 80 0.00 16.91
0100: 9.43 7.53 65.0 25.0 68.3 0.64 1.07 9.42 7.50 9.42 7.51 5 S 7 80 80 0.00 16.97
0200: 9.46 7.58 65.0 25.0 67.8 0.64 1.07 9.46 7.54 9.46 7.55 6 SE 9 77 80 0.00 17.03
0300: 9.49 7.59 65.0 25.0 68.1 0.64 1.07 9.49 7.57 9.48 7.58 5 SE 7 77 80 0.00 17.10
0400: 9.52 7.60 65.0 25.0 68.5 0.64 1.07 9.52 7.59 9.51 7.60 5 S 7 79 80 0.00 17.13
0500: 9.54 7.62 65.0 25.0 68.2 0.64 1.08 9.55 7.62 9.54 7.64 6 S 9 79 80 0.00 17.20
0600: 9.56 7.65 65.0 25.0 67.9 0.65 1.08 9.56 7.65 9.55 7.66 6 S 8 78 80 0.00 0.00 17.25
0700: 9.58 7.64 65.0 25.0 68.9 0.65 1.09 9.56 7.66 9.55 7.68 6 S 10 79 80 0.00 17.32
0800: 9.61 7.63 65.0 25.0 69.9 0.66 1.09 9.63 7.72 9.62 7.73 10 SW 18 80 80 0.00 17.39
0900: 9.57 7.74 65.0 25.0 69.8 0.63 1.08 9.63 7.72 9.62 7.73 11 SW 20 82 80 0.00 17.46
1000: 9.54 7.85 69.0 26.0 69.7 0.60 1.08 9.55 7.84 9.54 7.85 9 SW 12 83 80 0.00 17.53
1100: 9.54 7.87 69.0 26.0 69.3 0.60 1.07 9.39 7.86 9.39 7.88 10 S 14 85 80 0.00 17.58
1200: 9.54 7.88 69.0 26.0 68.9 0.60 1.06 9.55 7.88 9.55 7.90 20 W 26 79 80 0.00 0.00 17.65
1300: 9.53 7.91 69.0 26.0 68.1 0.59 1.05 9.55 7.91 9.54 7.92 9 SW 19 75 80 0.04 17.73
1400: 9.52 7.93 69.0 26.0 67.3 0.59 1.03 9.55 7.92 9.54 7.93 7 S 12 74 80 0.08 17.77
1500: 9.52 7.93 69.0 26.0 71.1 0.59 1.09 9.61 7.94 9.60 7.95 7 S 9 73 80 0.06 17.83
1600: 9.52 7.94 75.0 27.0 74.9 0.59 1.14 9.57 7.96 9.54 7.97 11 S 16 75 80 0.00 17.88
1700: 9.51 8.02 75.0 27.0 67.8 0.29 0.57 9.47 8.06 9.44 8.08 5 S 12 79 80 0.00 17.91
1800: 9.50 8.09 75.0 27.0 60.7 0.00 0.00 9.46 8.09 9.43 8.11 8 S 13 78 79 0.01 0.19 17.96
1900: 9.47 8.13 75.0 27.0 61.1 0.00 0.00 9.49 8.16 9.46 8.18 13 SW 20 69 79 0.35 18.05
2000: 9.44 8.16 75.0 27.0 61.6 0.00 0.00 9.44 8.16 9.41 8.17 15 SE 20 72 79 0.03 18.07
2100: 9.48 8.17 75.0 27.0 61.7 0.00 0.00 9.53 8.16 9.49 8.17 1 NE 4 70 79 0.00 18.10
2200: 9.52 8.18 75.0 27.0 61.8 0.00 0.00 9.53 8.18 9.49 8.19 5 S 10 73 79 0.02 18.12
2300: 9.52 8.20 75.0 27.0 62.0 0.00 0.00 9.53 8.20 9.49 8.21 8 SW 11 71 79 0.05 18.16
2400: 9.52 8.21 75.0 27.0 62.2 0.00 0.00 9.55 8.22 9.52 8.24 8 S 18 71 79 0.01 0.46 18.19
0100: 9.48 8.29 75.0 27.0 63.2 0.00 0.00 9.39 8.33 9.36 8.34 5 S 11 71 79 0.00 18.21
0200: 9.44 8.38 84.0 30.0 64.2 0.00 0.00 9.47 8.37 9.44 8.38 2 E 5 69 79 0.00 18.25
0300: 9.44 8.39 84.0 30.0 64.4 0.00 0.00 9.43 8.40 9.40 8.41 6 SE 9 70 79 0.00 18.28
0400: 9.44 8.41 84.0 30.0 64.5 0.00 0.00 9.53 8.42 9.50 8.43 6 S 8 69 78 0.00 18.31
0500: 9.44 8.43 84.0 30.0 64.7 0.00 0.00 9.43 8.43 9.40 8.44 9 S 11 69 78 0.00 18.35
0600: 9.44 8.44 84.0 30.0 64.9 0.00 0.00 9.44 8.44 9.41 8.45 8 S 12 69 78 0.00 0.00 18.39
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0.65
HG QR Chg
UNGAGED 177 53 Ystday Avg LD17 Q: 67.1 Chg: 1.9
Ystday Avg LD16 Q: 66.2 Chg: 3.5
Ystday Avg Trib Q: 0.1 Chg: 0.0
Ystday Avg Stor Q: 0.0
----- ----- ------
Total 177 53 SPREAD 0.8
OMNI -- 6hr Change = -0.08 24hr Equivl = -0.32 Storage/FT Change = 104 6HR DELTA Pool = -33
FLOAT-- 6hr Change = -0.11 24hr Equivl = -0.44 Storage/FT Change = 104 6HR DELTA Pool = -46
P.T. -- 6hr Change = -0.11 24hr Equivl = -0.44 Storage/FT Change = 104 6HR DELTA Pool = -46
OMNI -- 8hr Change = -0.08 24hr Equivl = -0.24 Storage/FT Change = 104 8HR DELTA Pool = -25
FLOAT-- 8hr Change = -0.09 24hr Equivl = -0.27 Storage/FT Change = 104 8HR DELTA Pool = -28
P.T. -- 8hr Change = -0.08 24hr Equivl = -0.24 Storage/FT Change = 104 8HR DELTA Pool = -25
OMNI -- 12hr Change = -0.06 24hr Equivl = -0.12 Storage/FT Change = 104 12HR DELTA Pool = -12
FLOAT-- 12hr Change = -0.02 24hr Equivl = -0.04 Storage/FT Change = 104 12HR DELTA Pool = -4
P.T. -- 12hr Change = -0.02 24hr Equivl = -0.04 Storage/FT Change = 104 12HR DELTA Pool = -4
Balanced Gates Jacob Charts Rating Table
6.0 x 2.5 (5.8) 58.0 --> 45 x 17
7.0 x 3.0 (6.0) 59.5 --> 48 x 19
10.0 x 4.0 (6.2) 61.0 --> 49 x 20
11.0 x 4.5 (6.4) 62.5 --> 52 x 20
13.0 x 5.0 (6.6) 63.0 --> 56 x 21
13.5 x 6.0 (6.8) 64.5 --> 60 x 22
17.5 x 6.5 (7.0) 66.0 --> 62 x 24 <-- Appendage
18.0 x 7.5 (7.2) 67.5 --> 64 x 24 <-- 24-27
21.0 x 9.0 (7.4) 68.0 --> 68 x 25 <-- Not very
25.0 x 9.5 (7.6) 69.5 --> 69 x 27 <-- significant
26.5 x 10.5 (7.8) 71.0 --> 72 x 27 <--
30.0 x 12.0 (8.0) 73.0 --> 76 x 30
34.0 x 13.5 (8.2) 75.0 --> 84 x 30
37.0 x 14.0 (8.4) 77.0 --> 92 x 33
38.5 x 15.0 (8.6) 79.0 --> 104 x 39
40.5 x 16.0
44.0 x 16.5
46.0 x 18.0
48.0 x 19.5
51.0 x 20.0
53.0 x 21.0
54.5 x 22.0
58.5 x 24.0