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Client:City of Mounds View Proj. No.435-07-129 <br />Storm Sewer Analysis Worksheet - Rational Method Project:Arden Ave Drainage Subdistrict Analysis Prepared By: BPS <br />Design Basis:2 year event Date:12/18/2008 <br />Time Full Time <br />Imperv.of Q - RUNOFF (cfs)Pipe Pipe Pipe Pipe Flow Pipe In Ground Invert Pipe Ground Invert Pipe <br />From To Area Area %Total Conc.I Slope Dia. Material Capacity Velocity Length Pipe Elev.Elev. Cover Elev. Elev. Cover <br />Point Point (ac.)(ac) Imperv. C CxA CxA (min.) (In/Hr) Direct Pond Total %(in.)(cfs)(fps)(feet) (min.) (feet)(feet) (feet) (feet) (feet) (feet) COMMENTS <br />Ardan Avenue Trunk Improvements <br />1 2 1.60 0.48 30%0.34 0.54 0.54 18.3 3.09 1.7 1.7 1.15 12 3.8 4.9 27 0.1 911.30 907.90 2.2 911.29 907.59 2.5 <br />2 5 0.68 0.24 35%0.38 0.26 0.80 18.4 3.09 2.5 2.5 0.20 12 1.6 2.0 294 2.4 911.29 907.59 2.5 910.81 907.01 2.6 <br />3 4 2.04 0.75 37%0.40 0.81 0.81 18.2 3.09 2.5 2.5 1.13 12 3.8 4.8 23 0.1 911.02 907.62 2.2 910.86 907.36 2.3 <br />4 5 1.83 0.47 26%0.30 0.55 1.36 18.3 3.09 4.2 4.2 0.81 15 5.8 4.7 43 0.2 910.86 907.36 2.1 910.81 907.01 2.3 <br />5 redoak 2.02 0.64 32%0.35 0.72 2.88 20.8 2.95 8.5 8.5 0.39 15 4.0 3.3 533 2.7 910.81 907.01 2.3 914.85 904.95 8.4 <br />redoak 15 0.00 2.88 23.5 2.75 7.9 7.9 0.20 15 2.9 2.3 343 2.5 914.85 904.95 8.4 913.90 904.28 8.2 <br />15 16 0.50 0.22 45%0.46 0.23 3.11 23.5 2.75 8.5 8.5 0.19 15 2.9 2.3 154 1.1 913.90 904.28 8.2 913.43 903.98 8.0 <br />8 9 1.12 0.38 34%0.37 0.41 0.41 17.7 3.16 1.3 1.3 1.68 12 4.6 5.9 28 0.1 912.42 907.32 3.9 912.45 906.85 4.4 <br />9 16 5.70 1.07 19%0.24 1.37 1.79 44.0 1.90 3.4 3.4 1.03 18 10.7 6.0 65 0.2 912.45 906.85 3.9 913.43 906.18 5.6 <br />16 33A 0.33 0.11 32%0.36 0.12 5.01 44.2 1.87 9.4 9.4 0.23 18 5.0 2.9 600 3.5 908.51 903.98 2.8 910.60 902.60 6.3 <br />33A 33C 0.00 5.01 47.7 1.79 9.0 2.0 11.0 0.23 18 5.0 2.9 407 2.4 910.60 902.60 6.3 907.07 901.66 3.7 <br />100-yr outflow from basin (Estimated), abandon <br />pipe between Nodes 33C and 33B <br />21 22 9.10 2.73 30%0.34 3.08 3.08 42.8 1.93 5.9 5.9 0.20 21 7.1 2.9 476 2.7 908.65 903.55 3.1 907.60 902.60 3.0 New trunk pipe along Ardan Ave <br />22 30 10.23 4.31 42%0.44 4.52 7.60 45.5 1.84 14.0 14.0 0.12 30 14.0 2.9 814 4.8 907.60 902.60 2.2 907.40 901.65 3.0 New trunk pipe along Ardan Ave <br />30 30A 2.73 1.12 41%0.43 1.19 8.79 50.3 1.71 15.0 15.0 0.12 30 14.1 2.9 212 1.2 907.51 901.65 3.1 909.44 901.40 5.2 New trunk pipe along Ardan Ave <br />28 29 2.59 1.03 40%0.42 1.10 1.10 20.2 2.95 3.2 3.2 0.33 12 2.0 2.6 327 2.1 909.00 904.97 2.8 908.23 903.90 3.1 <br />29 30A 5.98 2.99 50%0.51 3.05 4.15 35.5 2.12 8.8 8.8 0.36 21 9.5 3.9 227 1.0 908.23 903.90 2.3 909.44 903.09 4.4 New trunk pipe along Redoak Dr <br />30A 33C 0.00 12.93 51.5 1.68 21.7 21.7 0.10 36 20.7 2.9 509 2.9 909.44 901.40 4.7 908.59 900.91 4.3 New trunk pipe along Ardan Ave <br />33C 35 0.00 17.94 50.1 1.71 30.7 2.0 32.7 0.10 42 31.7 3.3 433 2.2 908.59 900.91 3.8 908.10 900.48 3.7 New trunk pipe along Ardan Ave <br />35 36A 5.33 3.42 64%0.63 3.36 21.31 52.2 1.65 35.2 2.0 37.2 0.10 42 31.5 3.3 102 0.5 908.10 900.48 3.7 908.51 900.38 4.2 New trunk pipe along Ardan Ave <br />10 11 7.12 1.35 19%0.24 1.73 1.73 40.9 1.98 3.4 3.4 0.48 12 2.5 3.1 27 0.1 909.90 907.50 1.2 909.72 907.37 1.2 <br />11 13A 1.89 0.63 33%0.37 0.69 2.42 41.0 1.96 4.7 4.7 0.16 15 2.6 2.1 173 1.4 909.72 907.37 0.9 911.29 907.09 2.7 <br />13A 13 0.08 0.00 2.42 42.4 1.93 4.7 4.7 0.60 15 5.0 4.1 88 0.4 911.29 907.09 2.7 911.06 906.56 3.1 <br />Replace existing 12" storm sewer (and reverse <br />flow) with new 15" trunk pipe along Eastwood Rd <br />12 13 4.82 0.98 20%0.25 1.22 1.22 38.2 2.04 2.5 2.5 0.78 12 3.1 4.0 27 0.1 911.05 908.07 1.8 911.06 907.86 2.0 <br />13 36A 0.70 0.26 36%0.39 0.28 3.92 42.7 1.93 7.6 7.6 0.60 18 8.1 4.6 942 3.4 911.06 906.56 2.8 908.51 900.95 5.9 New 18" trunk pipe along Eastwood Rd <br />36A 36 0.00 25.23 52.8 1.65 41.6 2.0 43.6 0.10 48 46.0 3.7 78 0.4 908.51 900.38 3.7 907.69 900.30 3.0 New trunk pipe along Ardan Ave <br />36 48" Stub 4.71 1.31 28%0.32 1.50 26.73 53.1 1.62 43.3 2.0 45.3 0.10 48 45.4 3.6 902 4.2 907.69 900.30 3.0 905.90 899.40 2.1 <br />New trunk pipe along Ardan Ave, Existing 48" stub <br />invert = 899.4 <br />= Modifications/improvements to existing trunk storm sewer <br />UPPER MH LOWER MH <br />100-year ponded discharge <br />Existing Sherwood Road Trunk Stormsewer <br />Proposed Ardan Avenue Trunk Stormsewer <br />Page 1 of 2