EPA STORM WATER MANAGEMENT MODEL - VERSION 5.1 (Build 5.1.013) -------------------------------------------------------------- Example 6 Circular Culvert with Roadway Overtopping and Upstream Storage ********************************************************* NOTE: The summary statistics displayed in this report are based on results found at every computational time step, not just on results from each reporting time step. ********************************************************* **************** Analysis Options **************** Flow Units ............... CFS Process Models: Rainfall/Runoff ........ NO RDII ................... NO Snowmelt ............... NO Groundwater ............ NO Flow Routing ........... YES Ponding Allowed ........ NO Water Quality .......... NO Flow Routing Method ...... DYNWAVE Surcharge Method ......... EXTRAN Starting Date ............ 06/08/2015 00:00:00 Ending Date .............. 06/08/2015 05:00:00 Antecedent Dry Days ...... 0.0 Report Time Step ......... 00:07:30 Routing Time Step ........ 5.00 sec Variable Time Step ....... YES Maximum Trials ........... 8 Number of Threads ........ 1 Head Tolerance ........... 0.005000 ft ************************** Volume Volume Flow Routing Continuity acre-feet 10^6 gal ************************** --------- --------- Dry Weather Inflow ....... 0.000 0.000 Wet Weather Inflow ....... 0.000 0.000 Groundwater Inflow ....... 0.000 0.000 RDII Inflow .............. 0.000 0.000 External Inflow .......... 21.025 6.851 External Outflow ......... 21.025 6.851 Flooding Loss ............ 0.000 0.000 Evaporation Loss ......... 0.000 0.000 Exfiltration Loss ........ 0.000 0.000 Initial Stored Volume .... 0.040 0.013 Final Stored Volume ...... 0.045 0.015 Continuity Error (%) ..... -0.025 *************************** Time-Step Critical Elements *************************** None ******************************** Highest Flow Instability Indexes ******************************** Link Culvert (2) Link Channel (2) ************************* Routing Time Step Summary ************************* Minimum Time Step : 4.50 sec Average Time Step : 5.00 sec Maximum Time Step : 5.00 sec Percent in Steady State : 0.00 Average Iterations per Step : 2.00 Percent Not Converging : 0.00 ****************** Node Depth Summary ****************** --------------------------------------------------------------------------------- Average Maximum Maximum Time of Max Reported Depth Depth HGL Occurrence Max Depth Node Type Feet Feet Feet days hr:min Feet --------------------------------------------------------------------------------- Outlet JUNCTION 0.46 1.16 869.16 0 01:49 1.16 TailWater OUTFALL 1.50 1.50 859.50 0 00:00 1.50 Inlet STORAGE 2.17 6.36 884.36 0 01:49 6.35 ******************* Node Inflow Summary ******************* ------------------------------------------------------------------------------------------------- Maximum Maximum Lateral Total Flow Lateral Total Time of Max Inflow Inflow Balance Inflow Inflow Occurrence Volume Volume Error Node Type CFS CFS days hr:min 10^6 gal 10^6 gal Percent ------------------------------------------------------------------------------------------------- Outlet JUNCTION 0.00 151.66 0 01:49 0 6.85 0.001 TailWater OUTFALL 0.00 151.66 0 01:49 0 6.85 0.000 Inlet STORAGE 220.00 220.00 0 01:22 6.85 6.85 -0.001 ********************** Node Surcharge Summary ********************** No nodes were surcharged. ********************* Node Flooding Summary ********************* No nodes were flooded. ********************** Storage Volume Summary ********************** -------------------------------------------------------------------------------------------------- Average Avg Evap Exfil Maximum Max Time of Max Maximum Volume Pcnt Pcnt Pcnt Volume Pcnt Occurrence Outflow Storage Unit 1000 ft3 Full Loss Loss 1000 ft3 Full days hr:min CFS -------------------------------------------------------------------------------------------------- Inlet 42.238 8 0 0 187.247 36 0 01:49 151.66 *********************** Outfall Loading Summary *********************** ----------------------------------------------------------- Flow Avg Max Total Freq Flow Flow Volume Outfall Node Pcnt CFS CFS 10^6 gal ----------------------------------------------------------- TailWater 75.53 67.34 151.66 6.851 ----------------------------------------------------------- System 75.53 67.34 151.66 6.851 ******************** Link Flow Summary ******************** ----------------------------------------------------------------------------- Maximum Time of Max Maximum Max/ Max/ |Flow| Occurrence |Veloc| Full Full Link Type CFS days hr:min ft/sec Flow Depth ----------------------------------------------------------------------------- Channel CONDUIT 151.66 0 01:49 9.01 0.02 0.15 Culvert CONDUIT 151.66 0 01:49 14.51 0.55 0.69 Roadway WEIR 0.00 0 00:00 0.00 *************************** Flow Classification Summary *************************** ------------------------------------------------------------------------------------- Adjusted ---------- Fraction of Time in Flow Class ---------- /Actual Up Down Sub Sup Up Down Norm Inlet Conduit Length Dry Dry Dry Crit Crit Crit Crit Ltd Ctrl ------------------------------------------------------------------------------------- Channel 1.00 0.00 0.00 0.00 0.66 0.34 0.00 0.00 1.00 0.00 Culvert 1.00 0.00 0.30 0.00 0.01 0.70 0.00 0.00 0.00 1.00 ************************* Conduit Surcharge Summary ************************* ---------------------------------------------------------------------------- Hours Hours --------- Hours Full -------- Above Full Capacity Conduit Both Ends Upstream Dnstream Normal Flow Limited ---------------------------------------------------------------------------- Culvert 0.01 1.75 0.01 0.01 0.01 Analysis begun on: Tue Sep 22 13:31:04 2020 Analysis ended on: Tue Sep 22 13:31:04 2020 Total elapsed time: < 1 sec