Be aware of fake MDOT texts demanding toll or traffic ticket payments. MDOT does not operate any toll roads. Contact the Michigan Attorney General for information on how to identify scams and file a complaint.
Drainage Manual
The Drainage Manual was developed to provide guidance for the design of MDOT drainage facilities. The purpose of this manual is to serve as a contract and training document for MDOT development and delivery personnel. This manual also meets stormwater best management practices required by MDOT’s stormwater management program.
- Introduction
- Legal Policy and Procedures
- Hydrology
- Natural Channels and Roadside Ditches
- Culverts
- Bridges
- Road Storm Drainage Systems
- Stormwater Storage Facilities
- Stormwater Best Management Practices (BMPs)
- Pump Stations