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Type Descrip ke K M C Y
Circular Conc Square Edge w/Headwall 0.5 0.0098 2 0.0398 0.67
Groove End w/Headwall 0.2 0.0078 2 0.0292 0.74
Groove End Projecting 0.2 0.0045 2 0.0317 0.69
Circular CMP Headwall 0.5 0.0078 2 0.0379 0.69
Mitered to slope 0.7 0.021 1.33 0.0463 0.75
Projecting 0.9 0.034 1.5 0.0553 0.54
Rect Box 30 to 75 deg Wingwall flares 0.4 0.026 1 0.0385 0.81
90 & 15 deg Wingwall flares 0.5 0.061 0.75 0.04 0.8
0 deg Wingwall flares 0.5 0.061 0.75 0.0423 0.82
45 deg Wingwall flare d=0.043D 0.4 0.51 0.667 0.0309 0.8
18 to 33.7 deg Wingwall flare d=0.083D 0.5 0.486 0.667 0.0249 0.83
90 deg w/ 3/4" chamfers 0.2 0.515 0.667 0.0375 0.79
90 deg w/ 45 deg bevels 0.2 0.495 0.667 0.0314 0.82
90 deg w/ 37.5 deg bevels 0.2 0.486 0.667 0.0252 0.865
3/4" chamfer; 45 deg skewed headwall 0.2 0.522 0.667 0.0402 0.73
3/4" chamfer; 30 deg skewed headwall 0.2 0.533 0.667 0.0425 0.705
3/4" chamfer; 15 deg skewed headwall 0.2 0.545 0.667 0.04505 0.68
45 deg bevels; 10-45 deg skewed HWall 0.2 0.498 0.667 0.0327 0.75
CM Box 90 deg headwall 0.25 0.0083 0.667 0.0379 0.69
Thick Wall Projecting 0.5 0.0145 1.75 0.0419 0.64
Thin Wall Projecting 0.9 0.034 1.5 0.0496 0.57
HOR Ellipse Conc - Sq Edge w/ headwall 0.5 0.01 2 0.0398 0.67
Conc - Groove end w/ headwall 0.2 0.0018 2.5 0.0292 0.74
Conc - Groove end projecting 0.2 0.0045 2 0.0317 0.69
VER Ellipse Conc - Sq Edge w/ headwall 0.5 0.01 2 0.0398 0.67
Conc - Groove end w/ headwall 0.2 0.0018 2.5 0.0292 0.74
Conc - Groove end projecting 0.2 0.0095 2 0.0317 0.69
18in CM Pipe Arch 18" Corner radius: 90 deg headwall 0.5 0.0083 2 0.0496 0.57
18" Corner radius: Mitered to slope 0.7 0.03 1 0.0463 0.75
18" Corner radius: Projecting 0.9 0.034 1.5 0.0496 0.53
31in CM Pipe Arch 31" Corner radius: 90 deg headwall 0.5 0.0296 1.5 0.0487 0.55
31" Corner radius: Mitered to slope 0.7 0.0087 2 0.0361 0.66
31" Corner radius: Projecting 0.9 0.003 2 0.0264 0.75
CM Arch Arch: CM - 90 deg headwall 0.5 0.0083 2 0.0379 0.69
Arch: CM - Mitered to slope 0.7 0.03 2 0.0463 0.75
Arch: CM - Thin walled projecting 0.9 0.034 1.5 0.0496 0.57
18in SP Pipe Arch 18" Corner Radius: Projecting 0.5 0.0296 0.5 0.0487 0.55
18" Corner Radius: No Bevels 0.7 0.0087 2 0.0361 0.66
18" Corner Radius: 33.7 deg Bevels 0.9 0.003 2 0.0264 0.75
Circular Beveled ring, 45 deg bevels 0.2 0.0018 2.5 0.03 0.74
Beveled ring, 33.7 deg bevels 0.2 0.0018 2.5 0.0243 0.83
HOR Ellipse CM - 90 deg headwall 0.5 0.0083 2 0.0379 0.69
CM - Mitered to slope 0.7 0.03 2 0.0463 0.75
CM - Thin walled projecting 0.9 0.034 1.5 0.0496 0.57
VER Ellipse CM - 90 deg headwall 0.5 0.0083 2 0.0379 0.69
CM - Mitered to slope 0.7 0.03 2 0.0463 0.75
CM - Thin walled projecting 0.9 0.034 1.5 0.0496 0.57
RCP Arch Pipe Square Edge w/Headwall 0.5 0.0098 2 0.0398 0.67
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