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Wet Weather - Design Recommendations <br /> 316L STAINLESS <br /> STEEL DEBRIS CAGE 3t6L STAINLESS <br /> 1D8"ID PRECAST MH STEEL DEBRIS CAGE (EL <br /> 108'ID PRECAST MH <br /> ROCK <br /> 3'WIDE P <br /> EDGE SLOPED 2H:1V MED = EL EDGE SLOPED 2H:1V 3'WIDE ROCK PAD--- <br /> RIM EL=347.00' <br /> IA TOP = 346.00' - <br /> 6'ORIFICE IE = 344.25' IBM - = 343, e <br /> E IA T EL = WEIR TOP EL= 343.30 <br /> 6"ORIFICE IE = 342.00' e A V = = 4 e EA GRAVEL BOT EL = 343.00' <br /> DRAIN ROCK BOT EL= 341.11' 0 2DE <br /> 4 UNDERDRAIN FR4IN ROCK ROT F OM E1JF IE= 340.71' R = z o 1 = 41 <br /> 4"ORIFICE IE = 340.00' e — 18" HDPE SD 6'ORIFICE IE = 340.00' e W = 4 <br /> 18"HDPE SO IE= 00' 0 4" HDPE DG IE = 339.50' 24'HDPE SDG IE = 33 .40' 4" _ <br /> IME HPEU E o 2 <br /> FLOW RESTRICTOR o 24" UNDERDRAIN FROM EMF IE= 337.8V IMPERVIOUS HDPE LINER <br /> OVERFLOW WEIR MH ROT FI 3YaQ� <br /> FLOW RESTRI H ROT EL= 336.00 <br /> ERF-OW WEIR <br /> SDMH 1 -5 — PLAN AND SECTIONSDMH SDMH 1 -4 — PLAN AND SECTION DQ <br /> SCALE: 1" = 5' C546-1, C546-21, C546-22 C546-20 SCALE: 1" = 5' <br /> C546-1, C546-21, C546-23 C546-20 <br /> SDMH 1-5: SDMH 1-4: <br /> • Remove weir • Increase weir elevation to 343.50 <br /> • Modify wetland orifices • Modify wetland orifices <br /> • Bottom orifice: D = 5 inches, invert = 340 • Bottom orifice: D = 5 inches, invert = 340 <br /> • Middle orifice: D = 6 inches, invert = 341.25 • Middle orifice: D = 6 inches, invert = 341.1 <br /> • Top orifice: D = 6 inches, invert = 343 • Top orifice: D = 6 inches, invert = 343 <br /> • Add upturned elbow to underdrain line. Rim • Add upturned elbow to underdrain line. Rim <br /> elevation = 343.5 elevation = 343.5 <br /> Both: Use the flow distribution headers to distribute both pumped and gravity flow to both EMFs. <br />