Field descriptions of the fields added to the PIPEWORKS.MDB file with the Drains Link program
Fields added to the Runoff data table.
Fields.Append .CreateField("Name", dbText)
' Pit Name
.Fields.Append .CreateField("Grate_Type", dbText) ' Grates types to be named to meet Drains
system
.Fields.Append .CreateField("Grate_Size", dbText) ' Grate size by description
.Fields.Append .CreateField("Pipe_Exists", dbText) ' Space or 'Y' if D/S pipe exists
.Fields.Append .CreateField("Area_Imp", dbText) ' Impervious area in square metres
.Fields.Append .CreateField("TC_Imp", dbText)
' Tc for impervious area in minutes
.Fields.Append .CreateField("Length_Imp", dbText) ' Length for impervious area overland flow
.Fields.Append .CreateField("Slope_Imp", dbText) ' Grade for impervious area overland flow
.Fields.Append .CreateField("Rough_Imp", dbText) ' Roughness for impervious area overland flow
.Fields.Append .CreateField("Length_Imp_Channel", dbText) 35 Length for impervious area
catchment channel flow
.Fields.Append .CreateField("Slope_Imp_Channel", dbText) ' Grade for impervious area catchment
channel flow
.Fields.Append .CreateField("Rough_Imp_Channel", dbText) ' Roughness for impervious area
catchment channel flow
.Fields.Append .CreateField("Area_Perv", dbText) ' Pervious area in square metres
.Fields.Append .CreateField("TC_Perv", dbText)
' Tc for pervious area in minutes
.Fields.Append .CreateField("Length_Perv", dbText) ' Length for pervious area catchment flow
.Fields.Append .CreateField("Slope_Perv", dbText) ' Grade for pervious area
.Fields.Append .CreateField("Rough_Perv", dbText) ' Roughness for pervious area
.Fields.Append .CreateField("Area_Supp", dbText) ' Supplementary Area
.Fields.Append .CreateField("TC_Supp", dbText)
' Tc for supplementary area
.Fields.Append .CreateField("Length_Supp", dbText) ' Length for supplementary area catchment
flow
.Fields.Append .CreateField("Slope_Supp", dbText) ' Grade for supplementary area
.Fields.Append .CreateField("Rough_Supp", dbText) ' Roughness for supplementary area
.Fields.Append .CreateField("OF_Rate", dbText)
' Design Overflow rate - Calc by drains
.Fields.Append .CreateField("OFlow_To", dbText) ' Overland flow destination Pit Name
.Fields.Append .CreateField("OFlow_Time", dbText) ' Travel time to overflow destination pit
.Fields.Append .CreateField("OFlow_Channel_Type", dbText) Channel type to overflow destination
pit
.Fields.Append .CreateField("OFlow_Channel_Length", dbText) ' Distance to overflow pit in metres
.Fields.Append .CreateField("OFlow_Channel_Slope", dbText) ‘ Grade to overflow pit %
.Fields.Append .CreateField("OFlow_Chanel_Roughness", dbText) Ponding volume at Sag pit in
cubic metres
.Fields.Append .CreateField("OFlow_Channel_DSAreaPct", dbText) ' Overflow percentage
.Fields.Append .CreateField("Pond_Volume", dbText) ' Sag volume at Sag pit in cubic metres
.Fields.Append .CreateField("Pond_Depth", dbText) ' Sag depth at Sag pit in cubic metres
Fields added to the surface data table
.Fields.Append .CreateField("Name", dbText)
' Pit Name
.Fields.Append .CreateField("Chainage", dbText) ' Chainage downstream of pit in metres
.Fields.Append .CreateField("Surface_RL", dbText) ' Surface elevation in metres
Fields added to the Service data table
.Fields.Append .CreateField("PitName", dbText)
' Pit Name
.Fields.Append .CreateField("Ser_Number", dbText) ' Service Number
.Fields.Append .CreateField("Ser_Type", dbText) ' Service Type
.Fields.Append .CreateField("Ser_Distance", dbText) ' Service Distance downstream of pit in
metres
.Fields.Append .CreateField("Ser_IL", dbText) ' Service Elevation in metres
.Fields.Append .CreateField("Ser_Dia", dbText) ' Service Dia in metres
.Fields.Append .CreateField("Ser_Lat_Clear", dbText) ' Service Lateral Clearance in metres
.Fields.Append .CreateField("Ser_Ver_Clear", dbText) ' Service vertical Clearance in metres
.Fields.Append .CreateField("Ser_Over", dbText) ' Service over the top possible
Fields added to the Detention data table
.Fields.Append .CreateField("PitName", dbText)
.Fields.Append .CreateField("RL", dbText)
.Fields.Append .CreateField("Volume", dbText)
level in the level field
' Pit Name
' Level in metres
' Stored volume in cubic metres below the
In addition
There need to be fields to document the outflow elements of a detention basin.
They would be different for each type of element.
A pipe culvert for example probably only needs 3D coordinates at each end, a diameter, material ot
roughness.
I don’t need to detail other items as I’m sure you will be familiar with them.