Text Size:   A+ A- A   •   Text Only
Site Image

Hydraulics Manual - Web Page
The Hydraulics Program is responsible for developing and maintaining the ODOT Hydraulics Manual.  This program is part of Geo-Environmental’s Engineering and Asset Management Unit.
Alvin Shoblom
Senior Hydraulics Engineer

Hydraulics Manual
The Hydraulics Manual (2011 version) is now available for use in highway design.  The manual is only available for viewing and printing at this website. 
The manual changes are effective beginning April 2, 2012.  These changes supersede all previous versions and apply to new designs projects as of the effective.  New ODOT designed projects are those that do not have an approved DAP by the effective date.  New outsourced projects are those that do not have an executed work order contract for PE by the effective date.  However, existing projects may make use of the new changes, if agreed to by the CPM or Project Team Leader.
Edits within existing chapters are shown in blue highlighting.  Chapter or appendix titles highlighted in blue are new. 
Changes were made to chapters 3, 4, 5, 6, 7, 8, 9, 10 11, 12, 13, and 15.
New guidance added to the manual includes:
  • Hydraulic Design Deviation (Chapter 3 and Appendix A)
  • Operation and Maintenance Manual Examples (Chapter 4, Appendix D)
  • Oregon 24-hour Precipitation Maps (Chapter 7, Appendix H)
  • Water Quality (Chapter 14)
    • Low Impact Development Approach (Appendix A)
    • Biofiltration Facilities (Appendix B)
    • Media Filtration Facilities (Appendix C)
    • Density Separation Facilities (Appendix D)
    • Stormwater Treatment Facility Components (Appendix E)
    • Oil Control Structures (Appendix F)
  • Field Markers (Chapter 17)

Link to Current Version
Hydraulics Manual Navigator to 2011 Edition (Current Version)

Link to Previous Versions
2005 Version

Technical Bulletins
Technical Bulletins may be issued between manual updates.  Bulletins are intended to provide immediate guidance on process, procedures and design information for users until the next manual update, at which time the bulletin may be incorporated into the Hydraulics Manual.
Underground Injection Control (UIC) Systems (GE07-03(B))(pdf)
Hydraulics/Stormwater Report Management (GE10-02(B))(pdf)

Other Programs/Resources

Stormwater Management Program Hydraulic Data Resources 
Culvert ManagementCreating or Revising Standard Drawings & Details  
FEMA (Flood Maps) Geo/Hydro Software Web Site New
ODOT O&M Manuals New