SWMM 5's input file is organized in sections - from SWMM 5.2 API Help

SWMM 5's input file is organized in sections, where each section begins with a keyword enclosed in square brackets. The various keywords are listed below. Section keywords can appear in mixed lower and upper case. The sections can appear in any arbitrary order in the input file, and not all sections must be present. Each section can contain one or more lines of data. Blank lines may appear anywhere in the file. A semicolon (;) can be used to indicate that what follows on the line is a comment, not data. Data items can appear in any column of a line.

 

Clicking on a keyword will take you to a description of the data supplied in that section. When listing the format of a line of data, mandatory keywords are shown in boldface while optional items appear in parentheses. A list of keywords separated by a slash (YES/NO) means that only one of the words should appear in the data line.

 

[TITLE]	project title
[OPTIONS]	analysis options
[REPORT]	output reporting instructions
[FILES]	interface file options
[RAINGAGES]	rain gage information
[EVAPORATION]	evaporation data
[TEMPERATURE]	air temperature and snow melt data
[ADJUSTMENTS]	monthly adjustments applied to climate variables
[SUBCATCHMENTS]	basic subcatchment information
[SUBAREAS]	subcatchment impervious/pervious sub-area data
[INFILTRATION]	subcatchment infiltration parameters
[LID_CONTROLS]	low impact development control information
[LID_USAGE]	assignment of LID controls to subcatchments
[AQUIFERS]	groundwater aquifer parameters
[GROUNDWATER]	subcatchment groundwater parameters
[GWF]	groundwater flow expressions
[SNOWPACKS]	subcatchment snow pack parameters
[JUNCTIONS]	junction node information
[OUTFALLS]	outfall node information
[DIVIDERS]	flow divider node information
[STORAGE]	storage node information
[CONDUITS]	conduit link information
[PUMPS]	pump link information
[ORIFICES]	orifice link information
[WEIRS]	weir link information
[OUTLETS]	outlet link information
[XSECTIONS]	conduit, orifice, and weir cross-section geometry
[TRANSECTS]	transect geometry for conduits with irregular cross-sections
[STREETS]	cross-section geometry for street conduits
[INLETS]	design data for street storm drain inlets
[LOSSES]	conduit entrance/exit losses and flap valves
[CONTROLS]	rules that control pump and regulator operation
[POLLUTANTS]	pollutant information
[LANDUSES]	land use categories
[COVERAGES]	assignment of land uses to subcatchments
[LOADINGS]	initial pollutant loads on subcatchments
[BUILDUP]	buildup functions for pollutants and land uses
[WASHOFF]	washoff functions for pollutants and land uses
[TREATMENT]	pollutant removal functions at conveyance system nodes
[INFLOWS]	external hydrograph/pollutograph inflow at nodes
[DWF]	baseline dry weather sanitary inflow at nodes
[RDII]	rainfall-dependent I/I information at nodes
[HYDROGRAPHS]	unit hydrograph data used to construct RDII inflows
[CURVES]	x-y tabular data referenced in other sections
[TIMESERIES]	time series data referenced in other sections
[PATTERNS]	periodic multipliers referenced in other sections