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RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE <br />(Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) <br />(c) Copyright 1983-2011 Advanced Engineering Software (aes) <br />Ver. 18.0 Release Date: 07/01/2011 License ID 1499 <br />Analysis prepared by: <br />Kimley-Horn and Associates, Inc. <br />765 The City Drive <br />Suite 200 <br />Orange, CA 92868 <br />************************** DESCRIPTION OF STUDY ************************** <br />* MAINPLACE MALL EXISTING CONDITION <br />* DISCHARGE AREA "B" <br />* 100 YEAR STORM <br />************************************************************************** <br />FILE NAME: MPB100.DAT <br />TIME/DATE OF STUDY: 15:14 09/13/2018 <br />USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: <br />--*TIME-OF-CONCENTRATION MODEL* -- <br />USER SPECIFIED STORM EVENT(YEAR) = 100.00 <br />SPECIFIED MINIMUM PIPE SIZE(INCH) = 12.00 <br />SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE <br />= 0.95 <br />*DATA BANK RAINFALL USED* <br />*ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD <br />- <br />'USER -DEFINED STREET -SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW <br />MODEL* <br />HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER -GEOMETRIES: <br />MANNING <br />WIDTH CROSSFALL IN- / OUT -/PARK- HEIGHT WIDTH LIP HIKE <br />FACTOR <br />NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) <br />(n) <br />1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0312 0.167 <br />0.0150 <br />GLOBAL STREET FLOW -DEPTH CONSTRAINTS: <br />1. Relative Flow -Depth = 0.00 FEET <br />as (Maximum Allowable Street Flow Depth) - (Top -of -Curb) <br />2. (Depth)*(Velocity) Constraint - 6.0 (FT*FT/S) <br />*SIZE PIPE WITH A FLOW CAPACITY GREATER THAN <br />OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE. - <br />'USER -SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED <br />UNIT-HYDROGRAPH MODEL SELECTIONS/PARAMETERS: <br />WATERSHED LAG = 0.80 * Tc <br />USED "VALLEY UNDEVELOPED" S-GRAPH FOR DEVELOPMENTS OF <br />1 UNITS/ACRE AND LESS; AND "VALLEY DEVELOPED" S-GRAPH <br />FOR DEVELOPMENTS OF 2 UNITS/ACRE AND MORE. <br />SIERRA MADRE DEPTH -AREA FACTORS USED. <br />AREA -AVERAGED <br />DURATION RAINFALL(INCH) <br />5-MINUTES 0.52 <br />30-MINUTES 1.09 <br />1-HOUR 1.45 <br />3-HOUR 2.43 <br />6-HOUR 3.36 <br />29-HOUR 5.63 <br />*ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR UNIT HYDROGRAPH METHOD* <br />+ <br />+ <br />I EX-B9 <br />I <br />+ <br />+ <br />**************************************************************************** <br />FLOW PROCESS FROM NODE 200.00 TO NODE 201.00 IS CODE = 21 <br />1 <br />