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Drainage Manual

Our Drainage Manual contains design criteria and basic working knowledge of hydrology and hydraulic design for use in the design and evaluation of highway drainage features.

Document Date updated
Download entire manual (PDF 28.6 MB) Aug. 30, 2000

Sections

Document Date updated
Cover Title and Table of Contents (PDF 0.5 MB) Aug. 30, 2000
1 - Introduction (PDF 2 MB) Aug. 30, 2000
2 - Materials and Structural Design (PDF 2 MB) Aug. 30, 2000
3 - Hydrology (PDF 4.3 MB) Aug. 30, 2000
4 - Channels (PDF 3.4 MB) Aug. 30, 2000
5 - Culvert (PDF 2.6 MB) Aug. 30, 2000
6 - Energy Dissipater (PDF 2 MB) Aug. 30, 2000
7 - Storage Facilities (PDF 1.5 MB) Aug. 30, 2000
8 - Storm Drainage Systems (PDF 5 MB) Aug. 30, 2000

Appendices

Document Date updated
Appendix A: Risk Assessment (PDF 0.5 MB) Aug. 30, 2000
Appendix B: Rainfall Intensity Curves (PDF 0.5 MB) Aug. 30, 2000
Appendix C: Pipe Flow Design Charts (PDF 1.3 MB) Aug. 30, 2000
Appendix D: Open Channel Flow Charts (PDF 3 MB) Aug. 30, 2000
Appendix E: Computer Programs and Reference Materials (PDF 1 MB) Aug. 30, 2000

Commonly used Tech Memos related to MnDOT Drainage Manual

Document Date issued
20-05-B-01 Reinforced Concrete Pipe Load Tables (PDF 0.5 MB) Mar. 16, 2020
22-04-B-02 Use of Plastic Pipe for Storm Sewer and Culverts on Trunk Highways (PDF 0.5 MB) May 06, 2022
21-04-B-01 Storm Drain Design Frequency and Catch Basin Spacing (PDF 0.5 MB) Oct. 19, 2021
20-09-B-03 Use of Atlas 14 Volume 8 Precipitation Frequency Estimates (PDF 0.5 MB) Dec. 16, 2020
Complete Tech Memos list (link) N/A