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6.5.22 - Flooding Report 5 may
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Blockage Assessment
Project Glenridge Drive, Cooroibah
Project No 21-0288
Date 22/03/2022
Debri Availability
High H
Debri Mobility
High M
Debri Transportability
Medium M
Rating
High HMM
AEP Adjusted
<5% Low
5% - 0.05% Medium
>0.05% High
L10 The average length of the longest 10% of the debris reaching the site
Assumed Blockage (W>L10<3xL10) W Width of opening (average culvert size)
<1200 >1200
<5% 0%
5% - 0.05% 10% 10%
>0.05% 20%
Adopt 20% blockage
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