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10901 27TH AVE SE 2025-07-29
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10901 27TH AVE SE 2025-07-29
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Last modified
7/29/2025 11:51:36 AM
Creation date
7/29/2025 11:50:00 AM
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Template:
Address Document
Street Name
27TH AVE SE
Street Number
10901
Notes
DRAINAGE REPORT
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I <br /> II <br /> II 0.2711 5 5 100 Pass <br /> 0.2739 5 5 100 Pass <br /> 0.2767 5 5 100 Pass <br /> 0.2795 5 4 80 Pass <br /> II 0.2822 5 4 80 Pass <br /> 0.2850 5 4 80 Pass <br /> 0.2878 5 4 80 Pass <br /> 0.2905 4 4 100 Pass <br /> II 0.2933 3 3 100 Pass <br /> 0.2961 3 3 100 Pass <br /> 0.2989 3 3 100 Pass <br /> 0.3016 3 2 66 Pass <br /> II 0.3044 2 2 100 Pass <br /> 0.3072 2 2 100 Pass <br /> 0.3099 2 2 100 Pass <br /> 0.3127 2 2 100 Pass <br /> I <br /> 0.3155 2 2 100 Pass <br /> 0.3183 2 2 100 Pass <br /> 0.3210 2 2 100 Pass <br /> II 0.3238 2 2 100 Pass <br /> 0.3266 2 2 100 Pass <br /> 0.3293 2 2 100 Pass <br /> 0.3321 2 2 100 Pass <br /> I 0.3349 2 2 100 Pass <br /> 0.3377 2 2 100 Pass <br /> 0.3404 2 2 100 Pass <br /> 0.3432 2 2 100 Pass <br /> I <br /> 0.3460 2 2 100 Pass <br /> 0.3487 2 2 100 Pass <br /> 0.3515 2 2 100 Pass <br /> 0.3543 2 2 100 Pass <br /> I <br /> 0.3571 2 2 100 Pass <br /> The development has an increase in flow durations <br /> I <br /> from 1/2 predeveloped 2 year flow to the 2 year flow <br /> or more than a 10% increase from the 2 year to the 50 <br /> year flow. <br /> I Water Quality BMP Flow and Volume for POC 1. <br /> On-line facility volume: 0.0573 acre-feet <br /> On-line facility target flow: 0.01 cfs. <br /> Adjusted for 15 min: 0.0914 cfs. <br /> I Off-line facility target flow: 0.0464 cfs. <br /> Adjusted for 15 min: 0.0524 cfs. <br /> Flow Frequency Return Periods for Predeveloped. POC #2 <br /> I Return Period 2 year Flow(cfs) <br /> 0.043516 <br /> 5 year 0.058269 <br /> 10 year 0.068753 <br /> I <br /> 25 year 0.08284 <br /> 50 year 0.093961 <br /> 100 year 0.105631 <br /> I Flow Frequency Return Periods for Mitigated. POC #2 <br /> Return Period Flow(cfs) <br /> 2 year 0.04222 <br /> II <br />
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