Infrastructure Development Code

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DS-5 - Appendix B.1   General

Table A Climate-Adjusted Design Rainfall Depth Estimate and Table B Climate-Adjusted Design Rainfall Intensity Estimate are applicable to the Tauranga City area.

Table A: Climate-Adjusted Design Rainfall Depth Estimate (2055) in mm

Return

Period

(Years)

Duration

10 Minutes

20 Minutes

30 Minutes

1

Hour

2

Hours

6

Hours

12

 Hours

24

Hours

48

Hours

2.33*

13

20

25

33

45

71

91

115

130

5

18

26

35

49

69

102

128

150

172

10

21

33

44

65

90

131

158

183

212

20

24

40

52

80

112

159

189

219

255

50

30

48

64

100

141

197

230

273

320

100

33

56

72

115

163

225

259

320

377

*For 2.33 years, read annual. 


Table B: Climate-Adjusted Design Rainfall Intensity Estimates (2055) in mm/hour

Return

Period

(Years)

Duration

10

Minutes

20

Minutes

30

Minutes

1

Hour

2

Hours

6

Hours

2.33*

78

60

50

33

23

12

5

108

78

70

49

35

17

10

126

99

88

65

45

22

20

144

120

104

80

56

27

50

180

144

128

100

71

33

100

198

168

144

115

82

38

*For 2.33 years read annual. For intermediate durations, refer to DS-5 Appendix C.1 General.