Modeling and Management of Stream Hydromodification Impacts

Geosyntec offers extensive experience in hydrologic and hydraulic modeling and the use of model output for the analysis of channel modifications and stream restoration projects. We frequently apply these models for long-term watershed and floodplain management.

Our practitioners have decades of experience in the evaluation of hydromodification activities, such as channelization / channel modification projects and the construction of dams. We also examine the resulting stream bank and shoreline erosion impacts of hydromodification and how it might affect in-stream and streamside (or riparian) habitats for fish and wildlife.

We develop and calibrate watershed hydrologic models and floodplain hydraulic models using new and existing data sources to examine both the volume reduction and control benefits of hydromodification projects. We also conduct stream restoration and open channel analyses to assist and design stream bank rehabilitation projects and to restore tidal flow in restricted salt marsh environments.

Our geomorphic studies and sedimentation/scour analyses are used to understand issues of accelerated erosion or changes to sediment supply. We apply our expertise in open channel hydraulics to perform flooding analyses, including floodplain delineation, flow monitoring, and rating curve development.

Geosyntec has developed excellent surface water modeling expertise including hydrodynamics, sediment transport, water quality, and fate and transport modeling. Geosyntec's expertise includes application of SWMM, HEC-HMS, HEC-1, HEC-2, HEC-RAS, RMA2/RMA4, EFDC, QUAL2k, River-FLO2D, CE-QUAL-W2, Computational Fluid Dynamics, and other models.

Lead Consultants

  • Lisa Austin, P.E.
    Lisa Austin is a Principal Engineer based in California with more than 25 years of experience focused on water quality and stormwater management. Lisa's practice focuses on National Polluta ...
  • Mark Hanna, Ph.D., P.E., LEED AP
    Mark Hanna is a Senior Principal Water Resources Engineer based in Southern California with more than 25 years of experience focused on water and natural resources. His experience in civil engineer ...
  • David Bonnett, P.E., P.Eng.
    David Bonnett is a Principal Engineer based in Massachusetts with over 35 years of experience focused on water and natural resources engineering and waste containment facility planning and design, ...
  • Poppy Staub
    Margaret "Poppy" Staub is a Senior Principal Consultant based in Colorado with more than 20 years of experience focused on environmental compliance, Superfund site management, pollution prevention ...
  • Eric Strecker, P.E., BCEE
    Eric Strecker is a Senior Principal Water Resources Engineer based in Oregon with more than 30 years of experience focused on the design, monitoring, and evaluation of stormwater best management pr ...
  • Adrienne Nemura, P.E.
    Adrienne Nemura is a Principal Water Resources Engineer based in Ohio with nearly 35 years of experience focused on helping clients identify cost-effective and sustainable solutions to meet their w ...
  • Ganesh Krishnan, P.E., D.WRE, CPESC, NCEES
    Ganesh Krishnan is a Senior Principal Engineer based in Georgia with more than 20 years of experience focused on water resources and geoenvironmental engineering. Ganesh specializes in design engin ...
  • Brandon Steets, P.E.
    Brandon Steets is a Senior Principal Engineer based in California with more than 18 years of experience specializing in National Pollutant Discharge Elimination System (NPDES) and Total Maximum Dai ...
  • Keith Tolson, Ph.D.
    Keith Tolson is a Senior Principal Environmental Scientist based in Florida with more than 15 years of experience focused on environmental sciences. He Specializes in the application of risk-based ...
  • Kim Williams, P.E., CPSWQ
    Kim Williams is a Senior Consultant Water Resources Engineer based in California with more than 20 years of experience focused on civil and environmental engineering. Specializing in stormw ...
  • Mark Ellard, P.E., CFM, D.WRE, FDEP
    Mark Ellard is a Senior Principal Water Resources and Environmental Engineer based in Florida with more than 25 years of experience in diverse watershed management, water quality assessment, and st ...
  • Michael Lodato, P.G.
    Michael Lodato is a Principal Geologist based in Florida with more than 25 years of experience focused on the field of hydrogeology, site assessment, and remediation using innovative technologies. ...
  • Kathleen Harrison, P.G. QSP, QSD, QISP, ToR, REA
    Kathleen Harrison is a Principal Geologist based in California with more than 20 years of experience focused on watershed management, stormwater pollution prevention, and erosion control. She is a ...
  • Ken Susilo, P.E., CPSWQ
    Ken Susilo is a Senior Principal Water Resources Engineer based in California with more than 20 years of experience focused on urban stormwater management. Ken specializes in the development of mul ...
  • Tom Fendley, P.E.
    Tom Fendley is a Principal Environmental Engineer based in Georgia with more than 30 years of experience focused on civil/infrastructure design, construction engineering and contract administration ...
  • Marc Leisenring, P.E.
    Marc Leisenring is a Principal Water Resources Engineer based in Oregon with more than 15 years of experience focused on stormwater master planning, watershed and storm system modeling, environment ...
  • Venkat Gummadi, P.E., CPESC
    Venkat Gummadi is a Principal Water Resources Engineer based in California with more than 10 years of professional experience focused on urban stormwater management. He specializes in stormwater be ...
Geosyntec Consultants
Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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