L&D17 6am Report TUESDAY 15 SEP 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 = 277 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: 9.22 2.97 17.0 7.0 28.6 1.06 1.50 9.22 2.97 9.25 2.95 2 NE 3 57 76 0.00 12.68
0100: 9.22 2.97 17.0 7.0 28.6 1.07 1.50 9.23 2.96 9.25 2.95 0 E 1 55 76 0.00 12.67
0200: 9.23 2.96 17.0 7.0 28.7 1.07 1.50 9.23 2.96 9.26 2.95 0 E 2 56 76 0.00 12.66
0300: 9.24 2.96 17.0 7.0 28.7 1.07 1.51 9.24 2.95 9.27 2.95 0 NE 0 57 76 0.00 12.65
0400: 9.24 2.96 17.0 7.0 28.7 1.07 1.51 9.24 2.96 9.27 2.95 3 E 5 57 76 0.00 12.64
0500: 9.24 2.95 17.0 7.0 28.7 1.07 1.51 9.24 2.95 9.27 2.94 3 SE 4 58 75 0.00 12.63
0600: 9.24 2.95 17.0 7.0 28.7 1.07 1.51 9.24 2.95 9.28 2.94 3 E 4 58 75 0.00 0.00 12.62
0700: 9.25 2.96 17.0 7.0 28.7 1.07 1.51 9.23 2.96 9.26 2.95 7 E 12 58 75 0.00 12.62
0800: 9.25 2.96 17.0 7.0 28.7 1.07 1.50 9.25 2.96 9.28 2.95 6 SE 10 59 75 0.00 12.61
0900: 9.26 2.93 17.0 7.0 28.7 1.07 1.51 9.25 2.93 9.28 2.92 7 SE 8 60 75 0.00 12.61
1000: 9.27 2.90 17.0 7.0 28.8 1.07 1.51 9.27 2.90 9.30 2.89 3 S 6 61 75 0.05 12.61
1100: 9.25 2.93 17.0 7.0 28.8 1.07 1.51 9.24 2.94 9.28 2.93 8 SE 11 62 75 0.03 12.60
1200: 9.22 2.96 17.0 7.0 28.8 1.07 1.51 9.22 2.96 9.22 2.95 9 SE 14 64 74 0.00 0.08 12.61
1300: 9.24 2.98 17.0 7.0 28.7 1.07 1.51 9.27 2.98 9.29 2.97 11 SE 16 67 74 0.00 12.62
1400: 9.25 2.99 17.0 7.0 28.6 1.06 1.50 9.25 2.99 9.27 2.97 13 SE 22 70 74 0.00 12.61
1500: 9.24 3.00 17.0 7.0 28.6 1.06 1.50 9.23 2.98 9.25 2.97 14 SE 19 72 74 0.00 12.62
1600: 9.23 3.01 17.0 7.0 28.6 1.06 1.50 9.23 3.01 9.24 3.00 13 SE 18 74 75 0.00 12.61
1700: 9.24 3.01 17.0 7.0 28.6 1.06 1.50 9.25 3.02 9.27 3.01 11 SE 16 77 75 0.00 12.60
1800: 9.24 3.01 17.0 7.0 28.7 1.07 1.50 9.24 3.01 9.26 2.99 8 SE 11 77 75 0.00 0.00 12.59
1900: 9.27 2.99 17.0 7.0 28.7 1.07 1.51 9.28 2.99 9.30 2.98 8 SE 11 76 74 0.00 12.59
2000: 9.30 2.98 17.0 7.0 28.7 1.07 1.51 9.30 2.98 9.32 2.97 8 SE 11 74 74 0.00 12.58
2100: 9.30 2.98 17.0 7.0 28.7 1.07 1.51 9.29 2.98 9.31 2.97 9 SE 12 73 74 0.00 12.58
2200: 9.29 2.99 17.0 7.0 28.7 1.07 1.51 9.29 2.99 9.31 2.98 8 SE 12 74 74 0.00 12.58
2300: 9.29 3.00 17.0 7.0 28.7 1.07 1.51 9.29 3.00 9.31 2.98 10 SE 12 75 74 0.00 12.58
2400: 9.28 3.01 17.0 7.0 28.6 1.06 1.50 9.28 3.01 9.30 3.01 13 S 16 74 74 0.00 0.00 12.58
0100: 9.31 3.01 17.0 7.0 28.7 1.07 1.51 9.26 3.02 9.28 3.01 6 S 14 74 74 0.00 12.58
0200: 9.34 3.01 17.0 7.0 28.8 1.07 1.51 9.34 3.01 9.36 3.00 4 NW 8 74 74 0.00 12.57
0300: 9.35 3.01 17.0 7.0 28.9 1.07 1.52 9.30 3.00 9.32 2.99 5 SE 8 73 74 0.00 12.57
0400: 9.35 3.00 17.0 7.0 28.9 1.07 1.52 9.22 3.00 9.24 2.99 0 SE 2 75 74 0.00 12.56
0500: 9.37 2.99 17.0 7.0 28.9 1.08 1.52 9.38 2.97 9.39 2.97 9 NW 22 74 74 0.00 12.56
0600: 9.39 2.98 17.0 7.0 29.0 1.08 1.52 9.41 2.98 9.42 2.97 13 NW 20 72 74 0.00 0.00 12.56
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0.08
HG QR Chg
UNGAGED 74 -5 Ystday Avg LD17 Q: 28.7 Chg: 0.3
Ystday Avg LD16 Q: 28.0 Chg: 0.0
Ystday Avg Trib Q: 0.1 Chg: -0.0
Ystday Avg Stor Q: 0.0
----- ----- ------
Total 74 -5 SPREAD 0.6
OMNI -- 6hr Change = 0.11 24hr Equivl = 0.42 Storage/FT Change = 278 6HR DELTA Pool = 118
FLOAT-- 6hr Change = 0.13 24hr Equivl = 0.52 Storage/FT Change = 278 6HR DELTA Pool = 145
P.T. -- 6hr Change = 0.12 24hr Equivl = 0.48 Storage/FT Change = 278 6HR DELTA Pool = 134
OMNI -- 8hr Change = 0.10 24hr Equivl = 0.29 Storage/FT Change = 278 8HR DELTA Pool = 80
FLOAT-- 8hr Change = 0.12 24hr Equivl = 0.36 Storage/FT Change = 278 8HR DELTA Pool = 100
P.T. -- 8hr Change = 0.11 24hr Equivl = 0.33 Storage/FT Change = 278 8HR DELTA Pool = 92
OMNI -- 12hr Change = 0.15 24hr Equivl = 0.29 Storage/FT Change = 278 12HR DELTA Pool = 81
FLOAT-- 12hr Change = 0.17 24hr Equivl = 0.34 Storage/FT Change = 278 12HR DELTA Pool = 95
P.T. -- 12hr Change = 0.16 24hr Equivl = 0.32 Storage/FT Change = 278 12HR DELTA Pool = 89
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