Collection of symbols, tables, examples, etc. for the development of drawings of working drawings of the brand ORS, OSS, MS in accordance with GOST 21.709-2019 “SPDS. Rules for the implementation of working documentation for linear structures of irrigation and drainage systems.
The composition of SPDS for irrigation and drainage systems:
- Designations in land reclamation according to GOST 21.709-2011.
- Tables and sidebars according to GOST 21.709-2019:
• Explication of linear structures.
• Basic hydraulic design indicators of the cross sections of the channels.
• Basic hydraulic design indicators of cross-sections of flume channels.
• Classification of soil according to the difficulty of development.
• Appointment of a linear facility.
• Statement of drains.
• Transverse channel profile.
- Scheme of irrigation network (example).

Format - DWG compatible with AutoCAD 2004-2017, Compass, ZWCAD, nanoCAD, BricsCAD, etc.