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<br />placements in Colorado, Kansas, Nebraska,
<br />Oregon, California, Nevada, Missouri, Louisi,
<br />ana, Texas and Illinois,
<br />
<br />. Managed the design of the complete drainage
<br />system for the Cargo Handling F acili ty Area at
<br />the new Denver International Airport,
<br />
<br />. Participated in evaluating the runoff from an
<br />urban watershed in Chicago, Illinois, and in the
<br />analysis and design of a major multi'purpose
<br />storm water retention cell. Developed textbook
<br />chapters on design of flood control and storm-
<br />water facilities, Worked with the Royal Com-
<br />mission of Saudi Arabia in evaluating optimal
<br />grading and drainage criteria for storm drain de-
<br />sign in the industrial city of Jubail, a new coastal
<br />city being constructed entirely on hydraulic fill,
<br />
<br />, Participated in formulating a mathematical op-
<br />timization model and conducting preliminary
<br />screening on a full range of structural and non-
<br />structural options for dealing with continuing
<br />flood problems in the Weeping Water Water-
<br />shed of southeastern Nebraska; utilized regional
<br />objectives to search for a feasible project in an
<br />area where national economic development cri,
<br />teria were previously unable to provide relief.
<br />
<br />. Participated in planning and implementing a
<br />study of unique urban flooding problems along
<br />Indian Creek in Overland Park, Kansas, resolv-
<br />ing considerable public objection regarding va-
<br />lidity of previous hydrologic and hydraulic
<br />studies for the basin, Developed improved tech,
<br />niques for flood control design in poorly
<br />drained, low gradient urban and rural areas,
<br />
<br />. Participated as an expert witness in litigation
<br />involving the hydraulics of a levee constructed
<br />along the Loup River near Columbus, Nebraska,
<br />Conducted extensive laboratory investigations of
<br />hydraulic conditions in flow fields surrounding
<br />bridge constrictions, and developed empirical
<br />and analytical tools for assessing the impact of
<br />bridge constrictions on flow conditions in natu-
<br />ral streams,
<br />
<br />. Developed criteria for designing waterway
<br />openings to railroad bridges and used the criteria
<br />
<br />~ PARSONS
<br />
<br />G~lry L.. Lewis, Ph.D., P.E.
<br />S,enior 'Natter Resources Engineer
<br />Page 3
<br />
<br />to establi;h flood pronk impacts of replacing
<br />over 200e railroad bridges,
<br />
<br />. Directed studies of the August 1985 rainstorm
<br />which flooded most of Cheyenne, Wyoming,
<br />and prepared information for use in litigation
<br />over the adequacy of standards used for design
<br />of a Union Pacinc Railroad (UPRR) culvert,
<br />
<br />. Following the ,severe Missouri and Mississippi
<br />River ovnflows in 1993, participated in several
<br />studies of causes of levee overtoppings and
<br />UPRRlBNSF railroad embankment and bridge
<br />washouts, Assessed solutions to future flooding
<br />and SCOUI problems, and designed several coun-
<br />termeasure systems,
<br />
<br />. Developed a list of procedural interpretations of
<br />the bridge scour equations in HEC,l8 for use by
<br />consultants, railroads, and Department of Trans-
<br />portation (DOT) engineers in applying the equa-
<br />tions to real bridges. Procedures have been
<br />adopted JY DOT staff in Nebraska, Oregon,
<br />Minnesotl, Nevada, Arizona, Washington, and
<br />Texas, Fresented bridge scour seminars to hy-
<br />draulic engineering staff to ten state DOTs and
<br />two railroads (BNRR, UPRR), focusing on
<br />bridge hydraulics and procedural issues in ap'
<br />plying HoC-18 methods to actual bridge prob-
<br />lems,
<br />
<br />. Developed improved techniques for drainage
<br />structure design in poorly drained, low-gradient
<br />urban ancl rural areas,
<br />
<br />. Developed a 300-page bridge scour technical
<br />manual in scour evaluations that has been used
<br />ll1 a dozen training courses for over 100 consult-
<br />ants and anothe:r 100 state DOT and railroad en.
<br />gmeers.
<br />
<br />. Developed master plan for solving severe drain-
<br />age prob: ems at the UPRR Classification Yard
<br />in North !)Iatte, NE.
<br />
<br />. Assisted the UPRR with identifying permIt re-
<br />quirements and developing permit applicatIOns
<br />for flood plain development and environmental
<br />permits f'Jr over 2000 bridge, culvert, canal, and
<br />bank protection projects,
<br />
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