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1989 AASHTO FACTORED WIND PRESSURES
EXP. 70 80 90 100 110
B1
10
13
16
20
24
B2
16
20
25
31
38
C
21
27
34
42
51
D
31
40
51
63
76
1997 UBC FACTORED WIND PRESSURES
Fastest Mile (MPH)
EXP. 70 80 90 100 110 120
B
11
15
19
23
27
33
C
19
25
31
38
47
55
D
25
32
41
50
61
72
2003 UBC FACTORED WIND PRESSURES
Three Second Gust (MPH)
EXP. 85 90 100 110 120 130
B
12
13
16
19
23
27
C
14
16
19
23
28
32
D
17
19
23
28
33
39
NATIONAL WIND VELOCITY MAP
Notes:
1.The wind pressures noted above are all unfactored loads. A load of factor 1.3 was used for all design cases.
2.“EXP” denotes wind exposure condition. Reference code provisions for a description of each exposure category.
CLICK HERE for classification descriptions.
TECHNICAL | Wind Pressures