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<br />. On behalf of UPRR, reviewed and provided
<br />extensive comments on U,S, Army Corps of En,
<br />gineers proposed regional conditions for nation-
<br />wide permits in Nebraska,
<br />
<br />, Assisted in developing climatologic data collec-
<br />tion stations in Montana for drainage correlation
<br />research project.
<br />
<br />. Served as Technical Director for Bridge Scour,
<br />and in most cases as Project Manager, for con-
<br />ducting over 400 statewide or individual bridge
<br />scour evaluations in 17 states, including Vir-
<br />ginia, Nebraska, Minnesota, Nevada, ldaho,
<br />Oregon, Washington, Arizona, South Dakota,
<br />Wyoming, Colorado, California, Texas, Alaska,
<br />Kansas, Florida, and Montana,
<br />
<br />. Developed and taught an independent 2-day
<br />course titled "Practitioner's Guide to HEC-
<br />18/HEC-20" to state DOT and consultant hy-
<br />draulic engineers in ten states (Oregon, Wash-
<br />ington, Nebraska, Minnesota, Arizona, Texas,
<br />Nevada, Idaho, and Virginia) and to design staff
<br />for two major railroads (BNRR, UPRR) ,
<br />Training focus is on procedural issues in apply,
<br />ing HEC-18 and HEC-20 methods to actual
<br />bridge problems, Procedural interpretations and
<br />guidelines for applications of the bridge scour
<br />equations in HEC-18 have been adopted by
<br />DOT hydraulic staff in six of the above states,
<br />including Oregon and Washington,
<br />
<br />. Provided comments and suggestions that have
<br />been incorporated by FHW A in revisions to
<br />HEC-18 and HEC-20.
<br />
<br />, From graduate school research, developed
<br />bridge hydraulic and scour standards that are
<br />currently used in FHW A manual on Highways
<br />in the River Environment (H.I.R,E,),
<br />
<br />. Teach each year the bridge waterway and scour
<br />inspection portion of the American Railway
<br />Bridge and Building Association seminar on
<br />bridge inspection in Denver, CO,
<br />
<br />. Participated with FHW A (Larry Arneson) in
<br />planning and presenting one of first short
<br />courses on applying WSPRO to bridge scour
<br />
<br />~
<br />~:J PARSONS
<br />
<br />Gary I., Lewis, Ph.D., P.E.
<br />
<br />Senior Water Resources Engineer
<br />Page 4
<br />
<br />evaluations; program presented to Minnesota
<br />DOT as part of "Practitioner's Guide" course
<br />mentioned above,
<br />
<br />. Assessed caus(:s of flow expansion scour from
<br />the UPRR Bridge 131.90, Ft. Worth Subdivi-
<br />sion, and developed concepts for installation of
<br />permeable jacks and impermeable spurs to rede-
<br />velop flood plain conditions and protect the
<br />bridge from being flanked by the expansion
<br />scour.
<br />
<br />. Authored Ch. 9, "Sedimentation," in the recent
<br />ASCE Manual of Practice on Design of RIver
<br />and Reservoir Intakes for Hydroelectric Plants,
<br />
<br />. Performed one of first tests of FHW A Interim
<br />Guidelines for Bridge Scour on Erodible Bed-
<br />rock, using bridge pier failure and coring tests of
<br />erodible shale at BNRR and Montana DOT
<br />bridges across Yellowstone River in Montana,
<br />Paper published on results,
<br />
<br />. Performed channel stability analysis (degrada-
<br />tion analysis) of a tributary to the Kansas River
<br />near Kansas City and designed grade stabiliza-
<br />tion structure and bridge scour protection for
<br />UPRR Bridge 18,09, Marysville Subdivision
<br />
<br />Assisted the UPRR, BNRR, and other clients
<br />with identifying permit requirements and devel,
<br />oping permit applications for flood plain devel-
<br />opment and environmental pelmits for over
<br />2000 bridge, culvert, canal, and bank protection
<br />projects, Reviewed and prepared extensive
<br />comments on U,S. Anny Corps of Engineers
<br />proposed regional and national conditions and
<br />revisions in nationwide permits.
<br />
<br />. Managed developments of models and hydro-
<br />logic evaluations needed by the Nebraska Attor'
<br />ney General's office in evaluating the claims by
<br />Nebraska that Wyoming is violating terms of a
<br />Supreme COlln Decree,
<br />
<br />, Assisted team of engineers working for the State
<br />Engineer's office of Colorado with hydrologic
<br />modeling of the surface and ground water inter-
<br />connections of the Arkansas River.
<br />
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