Plymouth’s engineering guidelines, along with the standard detail specifications, help ensure that quality projects are built in our community. The guidelines and specifications give engineers and developers uniform standards to follow as they design streets, trails, sanitary sewer systems, water mains and storm sewer systems for Plymouth projects. The specifications shall be incorporated into all construction project documents.

If you need assistance accessing the documents on this webpage, please contact the Engineering Division at engineering@plymouthmn.gov or 763-509-5500.

• 2025 Recap of Changes to Specifications (PDF)
• Engineering Guidelines (PDF) 
• Standard Detail Specs for Sanitary Sewer Construction (PDF) 
• Standard Detail Specs for Watermain Construction (PDF) 
• Standard Detail Specs for Storm Sewer Construction (PDF) 
• Standard Detail Specs for Street Construction (PDF) 
• City of Plymouth Standard Contract Provisions - EJCDC (PDF)

Standard plates are detail drawings to be used in conjunction with engineering guidelines and standard detail specifications. The city has created standard plates for sanitary sewer, water main, storm sewer, and street construction. The standard plates are available in both AutoCAD and PDF format.

If you need assistance accessing the documents on this webpage, please contact the Engineering Division at engineering@plymouthmn.gov or 763-509-5500.