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    Billy E. Johnson

    Research Civil Engineer
    CEERD-EP-W
    Billy.E.Johnson@usace.army.mil

    Education

    • B.S., Mississippi State University, 1987, Civil Engineering
    • M.S., Memphis State University, 1993, Civil Engineering
    • PhD, Colorado State University, 1997, Civil Engineering

    Professional Experience

    • Hydraulic Engineer, Memphis District, USACE, 1987 – 1991. • Lumped parameter hydrologic modeling (HEC-1). • One– dimensional hydraulic modeling (HEC-2). • Research Hydraulic Engineer, ERDC Coastal and Hydraulics Laboratory, 1991 - 2000. • One-, two-, three – dimensional hydrodynamic modeling (UNET, HEC-2, RMA-2, CH3D). • One-, two- dimensional hydrologic modeling (HEC-1, CASC2D, HSPF). • Development of the upland erosion algorithm for CASC2D. • Assisted in the incorporation of CASC2D into the WMS. • Principal Environmental Systems Modeler, Concurrent Technologies Corporation, 2000 – 2001. • Three– dimensional hydrodynamic modeling (CH3D). • Watershed / Water quality modeling (HSPF). • Research Civil Engineer, ERDC Environmental Laboratory, 2001 – present. • One-, two-, three- dimensional hydrodynamic and water quality modeling. • Multi-Dimensional Watershed / Water quality model development and application. • Multi-Dimensional Watershed / Contaminant model development and application. • Assisting in the incorporation of HSPF into the WMS.

    Research Interests

    • One-, two-, and three-dimensional hydrodynamic modeling. • One-, two- dimensional hydrologic and water quality modeling. • Development of upland erosion and channel sedimentation algorithms for two- dimensional distributed rainfall-runoff model. • Development of nutrient sub-modules for inclusion into USACE developed water engines. • Development of contaminant sub-modules for inclusion into USACE developed water engines.

    Research Projects

    • One-, two- dimensional hydrologic and water quality modeling.
    • Development of upland erosion and channel sedimentation algorithms for two- dimensional distributed rainfall-runoff model.
    • Panama Lakes Water Quality Study
    • San Jacinto Watershed Water Quality Study
    • Santa Marguarita Watershed Water Quality Study
    • Yuma Proving Grounds Watershed Contaminant Study
    • Otay Watershed Water Quality Study
    • Development of Nutrient Modules for a Distributed Watershed Model
    • Development of Contaminant Modules for a Distributed Watershed Model
    • Development of Overland Contaminant Modules for ARAMS

    Professional Memberships

    • Member ASCE • Member AWRA • Member IAHS

    Additional

    • Professional Engineer, Mississippi, 1993 – Present.

    Publications

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