L&D12 6am Report SATURDAY 19 JUL 2025 LockMaster: John Mueller Flat Pool = 11.8 Flat Tail = 2.8 River Mile = 556.7 Asst: James (Jim) Rolling DA = 82,400 mi^2 UNG LOC DA = 635 mi^2 %UNG LOC = 79% Phone: (563) 872-3314 or (6212) Flood Stage = 17.0 Lock Closed = 18.4 Top of Lock = 22.8 7 Submrg Tainters (60') Gates #1-3, 7-10 LD11(4hr) <- LD12 -> LD13(6hr) Top of Spillway = 12.3 3 Submrg Rollers (100') Gates #4,5,6 Out of Operation = 11.0' = 95,000 cfs Swell Head = 0.4 Max Submrg Setting = -52.5 X -21.0 = 64,100 cfs Gage Zero = 580.2 TW cntrl > 7.8' GATE cntrl < 7.6' 6am Mamimum Permissible Feet of Bulkhead = 1 Record Flood Stage = 23.51 in Apr 1965 M I 1 2 B L V I 4 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 0000: 11.78 11.08 105.0 45.0 94.4 0.00 0.00 11.78 11.08 11.79 11.07 4 E 5 65 78 0.00 0100: 11.79 11.08 105.0 45.0 94.4 0.00 0.00 11.78 11.07 11.80 11.05 2 E 4 64 78 0.00 0200: 11.79 11.07 105.0 45.0 94.4 0.00 0.00 11.79 11.07 11.80 11.05 3 E 4 63 78 0.00 0300: 11.79 11.05 105.0 45.0 94.3 0.00 0.00 11.79 11.07 11.80 11.05 3 E 4 63 78 0.00 0400: 11.79 11.04 105.0 45.0 94.3 0.00 0.00 11.79 11.04 11.80 11.04 0 E 3 61 78 0.00 0500: 11.77 11.05 105.0 45.0 94.3 0.00 0.00 11.78 11.05 11.79 11.04 2 SE 4 63 78 0.00 0600: 11.75 11.06 105.0 45.0 94.3 0.00 0.00 11.75 11.06 11.77 11.05 3 E 5 63 78 0.00 0.00 0700: 11.77 11.06 105.0 45.0 94.2 0.00 0.00 11.78 11.04 11.78 11.03 4 E 5 64 78 0.00 0800: 11.79 11.05 105.0 45.0 94.1 0.00 0.00 11.79 11.05 11.79 11.04 4 E 9 64 78 0.00 0900: 11.78 11.04 105.0 45.0 94.0 0.00 0.00 11.76 11.04 11.77 11.03 4 E 5 66 78 0.00 1000: 11.76 11.03 105.0 45.0 94.0 0.00 0.00 11.75 11.04 11.76 11.03 3 S 5 70 78 0.00 1100: 11.76 11.03 105.0 45.0 94.0 0.00 0.00 11.75 11.03 11.76 11.02 2 S 5 73 78 0.00 1200: 11.75 11.03 105.0 45.0 94.0 0.00 0.00 11.75 11.03 11.78 11.02 2 S 4 76 79 0.00 0.00 1300: 11.73 11.02 105.0 45.0 93.9 0.00 0.00 11.77 11.05 11.77 11.04 2 SE 4 76 79 0.00 1400: 11.71 11.01 105.0 45.0 93.8 0.00 0.00 11.71 11.03 11.72 11.03 4 S 10 78 79 0.00 1500: 11.72 11.01 105.0 45.0 93.7 0.00 0.00 11.73 11.00 11.74 11.00 5 S 10 80 79 0.00 1600: 11.73 11.00 105.0 45.0 93.6 0.00 0.00 11.71 11.01 11.72 11.00 3 SW 4 80 79 0.00 1700: 11.74 10.96 105.0 45.0 93.3 0.00 0.00 11.70 11.00 11.71 10.99 2 SW 5 78 79 0.00 1800: 11.75 10.93 98.0 42.0 92.9 0.00 0.00 11.76 10.94 11.77 10.93 3 S 6 78 79 0.00 0.00 1900: 11.75 10.94 98.0 42.0 92.9 0.00 0.00 11.75 10.93 11.76 10.92 2 S 6 78 79 0.00 2000: 11.75 10.94 98.0 42.0 93.0 0.00 0.00 11.75 10.93 11.77 10.92 2 S 5 76 79 0.00 2100: 11.75 10.94 98.0 42.0 92.9 0.00 0.00 11.77 10.92 11.77 10.91 1 SW 1 75 78 0.00 2200: 11.75 10.93 98.0 42.0 92.9 0.00 0.00 11.76 10.92 11.77 10.92 2 W 3 73 78 0.00 2300: 11.75 10.93 98.0 42.0 92.8 0.00 0.00 11.77 10.92 11.78 10.92 0 W 0 71 78 0.00 2400: 11.75 10.92 98.0 42.0 92.8 0.00 0.00 11.77 10.92 11.78 10.91 2 W 4 69 78 0.00 0.00 0100: 11.75 10.91 98.0 42.0 92.7 0.00 0.00 11.76 10.91 11.78 10.91 3 W 4 69 78 0.00 0200: 11.75 10.91 98.0 42.0 92.7 0.00 0.00 11.77 10.92 11.78 10.92 1 W 2 70 78 0.00 0300: 11.75 10.90 98.0 42.0 92.6 0.00 0.00 11.75 10.92 11.76 10.91 1 NE 3 72 77 0.00 0400: 11.75 10.90 98.0 42.0 92.6 0.00 0.00 11.75 10.91 11.76 10.90 2 SW 3 70 77 0.00 0500: 11.75 10.90 98.0 42.0 92.6 0.00 0.00 11.75 10.89 11.76 10.89 1 SW 3 71 77 0.00 0600: 11.75 10.90 98.0 42.0 92.6 0.00 0.00 11.72 10.91 11.73 10.90 2 S 4 72 77 0.00 0.00 ----- 0.00 HG QR Chg Prec MENI2 4.61 20 1 Ystday Avg LD12 Q: 93.7 Chg: -1.8 BUNW3(15) 3.11 112 -5 0.00 Ystday Avg LD11 Q: 95.9 Chg: -1.2 UNGAGED 442 -8 Ystday Avg Trib Q: 0.6 Chg: 0.0 ----- ----- Ystday Avg Stor Q: -0.0 Total 573 -12 ------ SPREAD -2.7 OMNI -- 6hr Change = 0.00 24hr Equivl = 0.00 Storage/FT Change = 1 6HR DELTA Pool = 0 FLOAT-- 6hr Change = -0.05 24hr Equivl = -0.20 Storage/FT Change = 1 6HR DELTA Pool = -0 P.T. -- 6hr Change = -0.05 24hr Equivl = -0.20 Storage/FT Change = 1 6HR DELTA Pool = -0 OMNI -- 8hr Change = 0.00 24hr Equivl = 0.00 Storage/FT Change = 1 8HR DELTA Pool = 0 FLOAT-- 8hr Change = -0.04 24hr Equivl = -0.12 Storage/FT Change = 1 8HR DELTA Pool = -0 P.T. -- 8hr Change = -0.04 24hr Equivl = -0.12 Storage/FT Change = 1 8HR DELTA Pool = -0 OMNI -- 12hr Change = 0.00 24hr Equivl = 0.00 Storage/FT Change = 1 12HR DELTA Pool = 0 FLOAT-- 12hr Change = -0.04 24hr Equivl = -0.08 Storage/FT Change = 1 12HR DELTA Pool = -0 P.T. -- 12hr Change = -0.04 24hr Equivl = -0.08 Storage/FT Change = 1 12HR DELTA Pool = -0 Balanced Gates Jacob Charts Rating Table 7.5 x 3.5 (7.6) 56.0 --> 39 x 19 (7.6) 56.0 9.0 x 4.5 (7.8) 58.2 --> 40 x 20 (7.8) 58.0 10.5 x 6.0 (8.0) 60.0 --> 43 x 20 (8.0) 60.0 14.0 x 7.0 (8.2) 62.2 --> 45 x 20 (9.0) 71.3 16.0 x 8.0 (8.4) 64.4 --> 47 x 21 <-- (10.0) 82.7 19.0 x 9.0 (8.6) 66.7 --> 49 x 22 <-- Appendage 21-24 (11.0) 93.6 20.0 x 10.0 (8.8) 69.0 --> 51 x 23 <-- (12.0) 104.3 22.0 x 11.0 (9.0) 71.4 --> 53 x 24 <-- (13.0) 116.7 24.0 x 12.0 (9.2) 73.7 --> 55 x 25 (14.0) 132.2 25.0 x 13.0 (9.4) 76.1 --> 58 x 25 (15.0) 144.7 29.0 x 14.0 (9.6) 78.5 --> 61 x 26 (16.0) 158.1 31.0 x 15.0 (9.8) 81.0 --> 64 x 26 (17.0) 175.2 34.0 x 16.0 (10.0) 83.4 --> 66 x 27 (18.0) 191.5 36.0 x 17.0 (10.2) 85.8 --> 69 x 28 (19.0) 207.6 40.0 x 18.0 (10.4) 88.3 --> 70 x 30 (20.0) 223.9 43.0 x 21.0 (10.6) 90.7 --> 77 x 33 (21.0) 241.3 46.0 x 22.0 (10.8) 93.2 --> 84 x 36 (22.0) 262.2 48.0 x 23.0 (11.0) 95.7 --> 91 x 39 (23.0) 285.3 52.0 x 24.0 (11.2) 98.1 --> 98 x 42 (24.0) 309.5 54.0 x 25.0 (11.4)100.6 --> 105 x 45 (25.0) 335.5 63.0 x 27.0 (26.0) 363.9 (27.0) 398.0