20220206 48 Elm St SWMP

DRAINS MODEL RESULTS - ROOFWATER PIPE WITH PROPOSED DEVELOPMENT - 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)
C1             107.85                0.019
A-2            107.24    107.29       0.02          0.3        0.01         0 Inlet Capacity
X2/X1          106.95     107.1           0            0       0.15         0 None
X3/X1           106.4                     0
X1/X1          107.55    107.98      0.083          0.7        0.35         0 Inlet Capacity

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)
Carpark / Landscaping
                 0.018         0     0.018     5                   5            5 10% AEP, 10 min burst, Storm 8
Roofwater        0.037     0.037         0     5                   5            5 10% AEP, 5 min burst, Storm 1
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)
OSD Outlet      0.019        0.4 107.572 107.235 10% AEP, 10 min burst, Storm 6
Pipe31334       0.097       1.38 107.102 106.953 10% AEP, 10 min burst, Storm 6
Pipe37243       0.097       1.38 106.809    106.4 10% AEP, 10 min burst, Storm 6
P38676          0.072       1.02 107.314 107.235 10% AEP, 10 min burst, Storm 4

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
Overland Flow 0.018      0.018      0.453     0.042      0.04    1.09       0.99 10% AEP, 10 min burst, Storm 5
OSD Overflow       0         0      1.284         0         0       0          0
OF51974            0         0      0.334         0         0       0          0
OF52788            0         0      0.496         0         0       0          0
OF42857            0         0      0.737         0         0       0          0



DETENTION BASIN DETAILS
Name     Max WL     MaxVol           Max Q       Max Q     Max Q
                                     Total       Low Level High Level
OSD Tank       107.68           10.5       0.019     0.019          0

Run Log for DRAINS v2023.11.8726.15750 - 48 ELM ST DESIGN 240612
{\colortbl;\red0\green0\blue0;\red192\green0\blue0;}Run Log for DRAINS v2023.11.8726.15750 - 48 ELM ST DESIGN 240612.drn run at 14:13:10 on 13/6/2024 using Watercom Drains v2023.11.8726.15750

No water upwelling from any pit.
Freeboard was less than 0.15m at A-2, X2/X1
Flows were safe in all overflow routes.