Drainage Design Manual - the City of San Luis Obispo

Table 4-5Rainfall - Intensity Data (mm/hr), Areas With 450 mm to 550 mm Annual RainfallRecurrenceDurationInterval (years) 10 min 15 min 30 min 1 hr 2 hrs 3 hrs 6 hrs 10 hrs2 43 36 25 17 11 9.4 7.4 5.65 58 48 33 22 15 13 10 8.410 71 61 41 26 19 16 13 9.725 81 69 48 30 23 20 16 1350 94 79 53 36 23 23 19 15100 102 86 58 38 29 25 20 16Table 4-6Rainfall - Intensity Data (mm/hr), Areas With 550 mm to 700 mm Annual RainfallRecurrenceDurationInterval (years) 10 min 15 min 30 min 1 hr 2 hrs 3 hrs 6 hrs 10 hrs2 53 46 30 19 14 12 9.1 7.15 74 64 43 27 19 17 13 1010 91 76 53 33 23 21 16 1225 102 89 61 38 28 25 20 1550 117 99 66 43 33 29 23 18100 127 109 74 47 35 31 25 19SLO Creek Drainage Design Manual 30 February 2003