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Stormwater calculations
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Last modified
4/16/2026 2:53:19 PM
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Hydrograph Report <br />Page 1 <br />English <br />Hyd. No. 14 <br />PRE 2 ACROSS <br />ROAD <br />Hydrograph type Reservoir <br />Peak discharge = <br />0.09 cfs <br />Storm frequency = 1 yrs <br />Time interval - <br />6 min <br />Inflow hyd. No. <br />= 13 <br />Reservoir name = <br />EXIST CULVERT <br />Max. Elevation <br />= 938.12 ft <br />Max. Storage = <br />629 cuft <br />storage indication method used <br />Total Volume = 3,058 tuft <br />Hydrograph Discharge Table <br />Time Inflow Elevation <br />Clv A <br />Clv B Clv C Civ D Wr A Wr B Wr C <br />Wr D Outflow <br />(hrs) cfs <br />ft <br />cfs <br />cfs cfs cfs cfs cfs cfs <br />cfs cfs <br />12.50 0-24 <br />938.07 <br />0.05 <br />-- ---- ----- <br />_-_ 0.05 <br />12.60 0.21 <br />938.08 <br />0.06 <br />- - <br />0.06 <br />12.70 0.18 <br />938.09 <br />0.06 <br />----- <br />0.06 <br />12.80 0.16 <br />938.09 <br />0.07 <br />----- - <br />---- 0.07 <br />12.90 0.15 <br />938.10 <br />0.07 <br />---- <br />----- 0.07 <br />13-00 0.14 <br />938-10 <br />0.08 <br />----- 0.08 <br />13-10 0-13 <br />938.11 <br />0.08 <br />---- <br />--- OM <br />13.20 0.13 <br />938.11 <br />0-08 <br />----- - - <br />----- 0.08 <br />13.30 0.12 <br />938,11 <br />0.08 <br />----- ----- <br />- 0.08 <br />13.40 0-12 <br />938.11 <br />0.09 <br />----- --- -•-- <br />-- 0.09 <br />13.50 0.11 <br />938.11 <br />0.09 <br />---- --- �_ �._ <br />_ 0.09 <br />13.60 0.11 <br />938.12 <br />0-09 <br />----- --- - T <br />--- 0.09 <br />13.70 0.10 <br />938.12 <br />0.09 <br />-- ----- <br />0,09 <br />13.80 0.10 <br />938.12 <br />0.09 <br />---- <br />0.09 <br />13.90 0.10 <br />938.12 <br />0.09 <br />----- ---- - -- ----- <br />----- 0.09 <br />14.00 0.09 <br />938.12 <br />0.09 <br />- ---- _-__ _-_ __-- <br />- 0.09 <br />14.10 0.09 <br />938.12 << <br />0.09 <br />-_- ----- <br />0.09 <br />14.20 0.09 <br />938-12 <br />0.09 <br />----. �- -- - -- --- <br />---- « <br />---- 0.09 <br />14.30 0.09 <br />938.12 <br />0-09 <br />----- <br />0.09 <br />14.40 0.08 <br />938.12 <br />0.09 <br />-- ----- <br />----- 0.09 <br />14.50 0.08 <br />938.12 <br />0.09 <br />--- �- �- <br />- 0.09 <br />14.60 0.08 <br />938.12 <br />0.09 <br />---- - -� -- <br />- 0.09 <br />14.70 0.08 <br />938.12 <br />0.09 <br />- 0.09 <br />14.80 0.08 <br />938.12 <br />0.09 <br />----- --- --_ --• ----- <br />----- 0.09 <br />14.90 0.08 <br />938.12 <br />0.09 <br />----- ---- --- -- ----- <br />---- 0.09 <br />15.00 0.08 <br />938-11 <br />0.09 <br />----- ---- ---- -- - .--- <br />---- 0.09 <br />15.10 0.08 <br />938.11 <br />0.09 <br />---- ---- -- T --- - ._._. <br />- 0.09 <br />15.20 0-08 <br />938.11 <br />0.09 <br />--- ----_ �-- ---� - _ <br />-� 0.09 <br />15.30 0.08 <br />938.11 <br />0.09 <br />-� ---- ---- �.. <br />• . 0.09 <br />15.40 0.07 <br />938.11 <br />0.09 <br />--- ----- -_-- ____ <br />�..- 0.09 <br />15.50 0.07 <br />938,11 <br />0,09 <br />---- ----_ _,_ <br />�- 0.09 <br />15.60 0.07 <br />938.11 <br />0.08 <br />---- ---- --_ ---- _�_. �_ <br />--.- 0.08 <br />15.70 0.07 <br />938.11 <br />0.08 <br />---- -� --- ---- - <br />---- 0.08 <br />15.80 0.07 <br />938.11 <br />0.08 <br />0.08 <br />15.90 0.07 <br />938.11 <br />0.08 <br />,--- ----- ---- -_-- - <br />-- 0.08 <br />16.00 0.07 <br />938.11 <br />0.08 <br />_---- ---- <br />0.08 <br />Continues on next page-.. <br />
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