20220206 48 Elm St SWMP

DRAINS MODEL RESULTS - EXISTING ROOFWATER PIPE - 10% AEP

DRAINS results prepared from Version 2023.11.8726.15750

PIT / NODE DETAILS                           Version 8
Name       Max HGL    Max Pond Max SurfaceMax Pond Min              Overflow Constraint
                      HGL       Flow ArrivingVolume      Freeboard (cu.m/s)
                                (cu.m/s) (cu.m)          (m)
N3             107.92                0.053
X1/X1          107.54    107.98      0.083           0.7       0.36         0 Inlet Capacity
X2/X1          107.11    107.18      0.054           0.9          0         0 Outlet System
X3/X1           106.4                0.001

SUB-CATCHMENT DETAILS
Name       Max        EIA       Remaining EIA   RIA                   PA        Due to Storm
           Flow Q     Max Q     Max Q     Tc    Tc                    Tc
           (cu.m/s) (cu.m/s) (cu.m/s) (cu.m/s) (min)                  (min)     (min)
Pre-development0.044      0.019     0.025     5                   5           5 10% AEP, 10 min burst, Storm 6
LOT 44          0.072     0.044     0.038     5                   5           5 10% AEP, 10 min burst, Storm 4



PIPE DETAILS
Name       Max Q      Max V      Max U/S Max D/S Due to Storm
           (cu.m/s) (m/s)        HGL (m) HGL (m)
Pipe31334       0.072       1.02 107.278 107.115 10% AEP, 10 min burst, Storm 4
Pipe37243       0.108       1.52     106.9   106.4 10% AEP, 10 min burst, Storm 6

CHANNEL DETAILS
Name     Max Q         Max V                              Due to Storm
         (cu.m/s)      (m/s)

OVERFLOW ROUTE DETAILS
Name    Max Q U/S Max Q D/S Safe Q     Max D     Max DxV Max Width Max V      Due to Storm
OF51974     0.043      0.043     0.602     0.112       0.1    0.89       0.87 10% AEP, 10 min burst, Storm 6
OF42857          0         0     0.575         0         0       0          0
OF52788          0         0     0.496         0         0       0          0



DETENTION BASIN DETAILS
Name     Max WL     MaxVol        Max Q     Max Q     Max Q
                                  Total     Low Level High Level

Run Log for DRAINS v2023.11.8726.15750 - 48 ELM ST EXISTING 240612
{\colortbl;\red0\green0\blue0;\red192\green0\blue0;}Run Log for DRAINS v2023.11.8726.15750 - 48 ELM ST EXISTING 240612.drn run at 14:09:25 on 13/6/2024 using Watercom Drains v2023.11.8726.15750

No water upwelling from any pit.
Freeboard was less than 0.15m at X2/X1
Flows were safe in all overflow routes.