Table 2. Monthly values of Ay for the steps located between the 7- to 

 10-foot contours and the 11 - to 14-foot contours. 



Value of I 



Monthly Ay value (ft) 



for steps between 



7- and 11-foot contours 



11- and 14-foot contours 



26 



145.8 



194.4 



25,27 



135.4 



180.5 



24,28 



125.0 



166.6 



23,29 



114.6 



152.7 



22,30 



104.1 



138.9 



21,31 



93.7 



125.0 



20,32 



83.3 



111.1 



19,33 



72.9 



97.2 



18,34 



62.5 



83.3 



17,35 



52.1 



69.4 



16,36 



41.7 



55.5 



15,37 



31.2 



41.7 



14,38 



20.8 



27.8 



13,39 



10.4 



13.9 



All Others 











40 



