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Geo-Environmental’s Hydraulics Program is responsible for developing and maintaining the ODOT Hydraulics Manual, standards of practice, standard drawings, and specifications in the Hydraulics discipline.  Core functions of this program include providing:
  • Statewide technical expertise
  • Training
  • Standard drawings and manuals updates
  • Asset management administration,  and
  • STIP funding management
Hydraulic engineering based on ODOT practice includes dealing with:
  • Hydraulic design of highway bridges and culverts
  • Bridge deck drainage
  • Fish passage
  • Large channel designs
  • Streambank stabilization
  • Bio-stabilization
  • Stream restoration
  • Coastal engineering
  • Complex energy dissipators
  • Floodplain hydraulics and documentation such as “No-Rise” certifications
  • Pump stations
  • Control structures such as tide gates and weirs
  • Temporary water management
  • Structural scour and erosion protection designs
  • Stormwater quality designs
  • Stormwater control facilities such as detention and retention
  • Storm drain system designs


Dan Gunther - Daniel.C.Gunther@odot.state.or.us
Interim Senior Hydraulics Engineer
Or contact by phone at: (503) 986-3365
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 Program Resources
Other Resources
Site Directory  Committee Info 
Manuals, Procedures, Practices  Hydraulics Data Resources
ODOT O&M Manuals
Standard SOW's Stormwater Management Program
Policy & Memos
TWM Full Isolation Plan Example
Training Modules
TWM Partial Isolation Plan Example
Standard Specifications 
Standard Drawings 
Standard Details 
Technical Bulletins