Locate Structures

This command places a structure on a flow polyline of the watershed schematic for TR-20 Hydrograph Development. The program prompts for elevation, discharge and storage data for the structure which is equivalent to the TR-20 STRUCT table data:

Water Elevation at T=0: Indicate the water-surface elevation at the structure at the beginning of the storm.

Insert Row: Inserts a row above the current row.

Remove Row: Removes the current row.

Load: Load a stage-discharge and/or stage-storage file into the table:

• Stage-discharge .STG - Stage-storage files can be created with the Design Bench Pond, Design Valley Pond or Calculate Stage-Storage commands.
• Stage-storage .CAP - Stage-discharge files can be created with the Drop Pipe Spillway Design, Design Channel or Design Culvert commands.

Graph: Description of Control.

Report: Produces a text report of the structure data.

Note:

• The TR-20 processing engine limits the number of stage-storage-discharge entries to twenty.
• The initial discharge must be zero due to the TR-20 engine.

Prompts

Symbol size <4.0>: Indicate the desired symbol size and press Enter
Pick location on flow polyline for structure: Pick a point on a flow polyline and press Enter

Pulldown Menu Location: Watershed → TR-20 Routing
Keyboard Command: trstruct
Prerequisite: Flow polyline