City of Balch Springs Hickory Creek Flood Protection Planning Study Final Report Page: Table E.1
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Table E.1: HEC-RAS Plan: Hickory Creek Combined Existing
River Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl
(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft)
4C6 Trib 1 1 662 50% Annual Chanc 275 434.25 439.94 437.41 440.03 0.00093 2.44 119.49 103.75 0.24
4C6 Trib 1 1 662 20% Annual Chanc 500 434.25 440.85 438.41 441.01 0.001252 3.32 190.23 161.01 0.29
4C6 Trib 1 1 662 10% Annual Chanc 700 434.25 441.24 439 441.49 0.001741 4.16 221.46 229.12 0.34
4C6 Trib 1 1 662 4% Annual Chance 900 434.25 441.94 439.44 442.14 0.001321 3.98 412.15 329.31 0.3
4C6 Trib 1 1 662 2% Annual Chance 1050 434.25 442.67 439.77 442.84 0.001012 3.8 550.19 401.42 0.27
4C6 Trib 1 1 662 1% Annual Chance 1200 434.25 443.22 440.08 443.32 0.000665 3.26 1034.01 466.96 0.22
4C6 Trib 1 1 662 0.4% Annual Chan 1400 434.25 443.86 440.65 443.95 0.000535 3.11 1360.52 555.04 0.2
4C6 Trib 1 1 662 0.2% Annual Chan 1600 434.25 444.29 440.96 444.37 0.000486 3.08 1603.94 582.84 0.2
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Halff Associates. City of Balch Springs Hickory Creek Flood Protection Planning Study Final Report, report, July 29, 2011; Richardson, Texas. (https://texashistory.unt.edu/ark:/67531/metapth838691/m1/351/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.