Highway Drainage Manual
This manual is the official source for highway drainage design criteria on Maryland Department of Transportation (MDOT) projects. The most recent version of the Highway Drainage Manual is presented below. Future revisions will be featured on this website.
Highway Drainage Manual (September, 2023), (PDF, 6 MB)
| Table of Contents |
| Chapter 1 |
Introduction |
| Chapter 2 |
Hydrology |
| Chapter 3 |
Channels |
Chapter 4 |
Culverts |
Chapter 5 |
Storm Drain Systems |
Stormwater Management Design Resources
Office of Structures Manual for Hydrologic and Hydraulic Design
Drainage Report and Design Exception Templates (ZIP, 160 KB)
Previous Drainage Manual and Supplemental Guidelines
(ZIP, 10.5 MB)
Drainage Manual Revisions (PDF, 320 KB)
For additional information, please contact [email protected]