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llhli DAVID 0. ANDRES, M.Sc.CE, mane. Ktfiffial hyfiwitis esnsutsets Hydraulic Engineer Ice Hydraulics __._ _; : _::~ ;;~:_:_;; A‘~' "";_'::.:_ ::::::;__:i_::::: '¢—~:~~"t*truI _ " "~ '*1e01t_. 1* ' _ . 1“..""i_ ': ’ ' ‘ ' ..._:r"“ "" 1 1 ‘"'f*‘“" Educafion Mr. Andres is a Principal of NHC with 40 years of experience in river engineering, surface water hydrology, ice hydraulics, and related fields. For a M.Sc. CE, River Engineering period of over 10 years prior to joining NHC in 2004, he was President and and Fluid Mechanics, Senior Hydraulic Engineer with Trillium Engineering & Hydrographics inc. University of Alberta, 1981 From 1981 to 1994 he was employed at Alberta Research Council, the last B.Sc. CE, Water Resources, eight years he served as Head of the Surface Water Engineering Group, University of Manitoba, 1973 Environmental Research and Engineering Department, where he provided technical, operational, and strategic leadership to a group of ten individuals License!Affiiiations conducting research in ice hydraulics, hydrology, geomorphology, river Registered Professional engineering, and water quality. Prior to that, he was a river engineer with the Engineer, Province of River Engineering Branch of Alberta Environment. Alberta. Past Chaimian of the Mr. Andres has authored numerous technical publications over his career and Canadian Committee on has contributed to Hydrology of Floods in Canada — A Guide to Planning and River lee and the Design, edited by W.E. Watt, River Ice Jams, edited by S. Beltaos, and the Environment updated version of Guide to Bridge Hydraulics edited by C.R. Neill. He has also participated in a number of short courses related to ice engineering and Years Experience has organized or assisted in the organization of a number of technical 40 symposia and workshops, the most notable being the 11th lAHR International Symposium on Ice held in Banff, Canada in 1992, the 2nd and 12th CRIPE Areas of Expertise Workshops on River Ice held in Edmonton in 1982 and 2003 respectively. Surface water hydrology analysis, water supply Selected Related Experience modelling, flood hazard assessment Ice Forces on Rlprap, Muskrat Falls Hydro Development, Labrador: River engineering, hydraulic Carried out an analysis of wind and ice conditions to determine ice forces on a analysis, sediment transport, variety of riprapped structures in reservoir and tailrace. Undertook a study of bridge design, bank the feasibility of deploying a logfice boom to control debris in front of the water protection design intakes at the hydropower facility. Cold regions hydraulics, river freezeup and breakup Review of 2011 Manitoba Floods: Member of a multidisciplinary task force processes, ioe jam established to review the provincial response to the flood. Specifically tasked modelling. to examine the flood forecasting protocols, assess operation of flood control structures, and evaluate landuse guidelines and floodplain management ice mechanics ioe bridge policies. design and certification, winter road design Lower Churchill River Hydropower Development Labrador: Worked on Environmental heat transfer, the design and evaluation of a field program and design procedure to optimize water quality modelling the cofferdam height at the Muskrat Falls and Gull island hydropower projects. Expert witness analysis, testimony on environmental Ice Forces on Structures in Site C Reservoir Embayments: Carried out a impacts of development hydrothermal analysis of water temperatures and ice conditions within the projects Site C resenroir tributary embayment to estimate ice forces on bridge piers and riprapped approach embankments for bridges along the reiocated highway between Fort St. John and Hudson Hope. Dunvegan Hydro Power Project implications on Peace River Ice Regime: Undertook a five year study of the ice regime of the Peace River to assess the impact of the hydropower project on icerelated concems along the river. Stateofthe~art unsteady onedimensional modelling using the PRICE model (a version of CRISSP) was carried out to simulate flows and ice conditions along 1200 km of river. Pre and postproject ice conditions were simulated for a 23 year period and risk analysis of icerelated phenomena (water levels, ice cover duration, ice thickness, etc) was carried out to quantify water resource specialists David D. Andres, M.Sc.CE, P.Eng. the expected effects of the project. Flood Risk Assessment, Riversong Development on the Bow River at Cochrane: Carried out a review of historical ice data at freezeup as provided by TransAlta, simulated the freezeup levels with HECRAS, and identified icerelated flood risks on basis of flows and winter severity. Nechako River at Vanderhoof Flood Hazard Assessment: Updated the flood risk analysis for the post regulated period for the Nechako River at Vanderhoof. A comprehensive continuous flood routing model was developed to calculate runoff from ungauged areas and to assess the implications of various Nechako Reservoir operating protocols on flood peaks at Vanderhoof. Review of historical ice data was undertaken and icerelated flood risks were evaluated at both freeze~up and breakup as part of the flood risk assessment. Slave River Hydro Power Project: Carried out a preliminary study of ice and hydraulic processes on the Lower Peace River in anticipation of a complete EIA. Ghost Reservoir: Evaluated the effects if reservoir sedimentation and delta formation on the river and ice regime of the Lower Ghost River. Nechako River Floodplain Study, Prince George, BC: A historical evaluation of high ice levels, coupled with a Monte Carlo analysis that represented the effects of the dominant icerelated processes was undertaken to determine the flood risks along the Nechako River. This work addressed the most significant flood mechanisms along the Nechako River and was part of an overall flood n'sk analysis on the Fraser and Nechako Rivers. Taltson River ice Monitoring: Evaluated the dominant ice processes on the Taltson River system in the vicinity of the hydroelectric installation and developed a monitoring program to quantify the impact of regulation on the ice processes and the resulting winter ice conditions. Flood Protection at Fort Mcldurray, Alberta: Updated the ioe jam flood frequency curve for the Athabasca River at Fort McMurray and conducted a prefeasibility design study and cost estimates for providing flood protection by an innovative diking scheme that optimizes the existing flood proofing. Never Creek Flood Control, Hlxon BC: A HECRAS simulation of this small steep, highly mobile stream was undertaken to confinn the results of a previous floodplain study and to provide a hydraulic context for the application of simple ice jam models. ice jam frequency analysis was undertaken to assess the significance of midwinter breakup jams on both the flood risks and the integrity of riparian structures within the community, and a course of action was recommended to control bank erosion at more than twenty sites throughout the study area. Red River Floodway Expansion, Winnipeg, Manitoba: Extensive analysis of both open water and ice related flows was undertaken for the Red River downstream of the floodway. The work required an understanding of floodway operation, breakup initiation, and ice jam formation. The analysis assisted in the evaluation of the potential for the floodway expansion to exacerbate ice jams on the Red River downstream of the floodway outlet. Testimony was provided to summarize the results of the analysis at a public hearing. Yukon River Bridge at Dawson City, Yukon: Undertook a major study of open water flooding, and of freezeup and breakup processes to quantity the impact of the proposed bridge on the flood regime. HECRAS analysis of open water levels and icerelated water levels was used to assess the hydraulic conditions in the bridge waterway, to quantify the effect of the bridge on sensitive First Nation lands upstream, and to determine the effects of the bridge on open water and in ice jam levels within the context of the diking system in the town. The results of the analysis were defended in a public hearing assessing the efficacy of the proposed bridge. The Niagara River lceIFlood Study: Served as one member of a threeperson lntemational Board of Consultants acting on behalf of the Federal Energy Regulatory Commission to provide tactical advice to the New York Power Authority, and to assist in the planning and monitoring of the progress of hydraulic studies to optimize hydropower production on the Niagara River without exacerbating icerelated flooding along the Niagara River. Significant effort was directed towards the development of twodimensional unsteady numerical models to simulate water levels and transport and deposition of ice. David D. Andres, M.Sc.CE, P.Eng. Deerfoot Bridge Crossing, Bow River at Calgary: Undertook a frequency analysis of ice jams and high ice events on the Bow River to develop design ice loads and levels for the design and construction of a major highway bridge. Carried out regional analysis of breakup flows in Southem Alberta to determine the impact of regulation on the design loads and developed a procedure to reduce ice loads in consideration of the regulation. ice Jam Flooding on the Kicking Horse River at Golden, BC: investigated the processes that lead to mid winter ice jams at the site, developed ice jam rating curves for the site, and assessed the risk of icerelated flooding to a wide range of infrastructure, including dikes and railway facilities. Peace River ice Study, Peace River, Alberta: Carried out a study of ice processes on the Peace and Smoky Rivers to evaluate the risk of flooding due to hydropower production, to determine the level of protection provided by the diking system, to improve the forecasting procedures, and to scope out improved monitoring procedures. A number of models were used to quantify ice conditions in the river and to characterize the local hydraulics, and to provide input into more sophisticated models of the ice regime. A somewhat novel probability analysis of historical base and peak freezeup levels was ultimately suggested to provide a framework to establish the maximum hydropower releases while the ice cover forms at the town.