Erosion and Sediment Pollution Control Program Manual.pdf

TABLE 5.6
5-Minute through 24-Hour Rainfall Depths for Region 2
Rainfall Depth (in)
Time of
100 500
Concentration 1 year 2 year 5 year 10 year 25 year 50 year year year
5 min 0.30 0.36 0.43 0.48 0.55 0.60 0.64 -
10 min 0.47 0.56 0.66 0.74 0.84 0.91 0.97 -
15 min 0.57 0.68 0.81 0.91 1.04 1.13 1.20 -
30 min 0.76 0.92 1.12 1.27 1.47 1.61 1.74 -
60 min 0.93 1.13 1.42 1.63 1.92 2.13 2.33 -
2 hr 1.09 1.32 1.65 1.92 2.29 2.60 2.94 -
3 hr 1.20 1.45 1.81 2.10 2.52 2.87 3.25 -
6 hr 1.51 1.81 2.26 2.63 3.16 3.57 4.00 -
12 hr 1.86 2.23 2.76 3.23 3.92 4.47 5.06 -
24 hr 2.24 2.68 3.30 3.82 4.60 5.27 6.03 8.15
Adapted from Appendix A of PennDOT Publication 584 (2008 Edition)
Figure 5.9
Rainfall Intensity for 1-year through 100-year Storms for Region 2
Adapted from Appendix A of PennDOT Publication 584 (2008 Edition)
363-2134-008 / March 31, 2012 / Page 119