Mr. Sutherland is a senior water resources engineer with 30 years of professional engineering experience in drainage master planning, water quality management planning, riverine hydraulics, flood management and water quality facility design. He is unique in that his entire engineering career has been spent as a consultant on water resources planning and design projects. These projects include the delineation and modification of floodplains and floodways using the procedures established by the Federal Emergency Management Agency (FEMA).
Mr. Sutherland’s strength is in the practical application of computer models to solve hydrologic, hydraulic, and water quality problems. In addition, he is the principal author of a state-of-the-art urban stormwater quality modeling package called SIMPTM recognized by the U.S.G.S. as the best stormwater quality modeling package in the U.S. SIMPTM has been used on numerous occasions to predict pollutant loading and washoff processes including projects for Portland, OR, Bellevue, WA, the State of Wisconsin, Livonia and Jackson, MI, and the Cross Israel Highway in Tel Aviv, Israel. Mr. Sutherland also was the principal instructor for a total of numerous short-courses on the use of PC-based programs HEC-1, HEC-2, SIMPTM, and SLAMM, which have been attended by over 400 engineers, planners, and technicians and is the author of approximately thirty publications primarily regarding the impacts of urbanization on both the quantity and quality of stormwater.
Mr. Sutherland directs the firm’s Water Resources Engineering Program and assists with providing opportunities for professional development of our talented and diverse staff.
Dr. Matin is a senior water resources engineer with 20 years of engineering experience in river mechanics, sediment transport, applied hydrology and riverine hydraulics. He is a nationally respected expert in the field of sediment transport and erosion control. Dr. Matin is experienced in the practical application of computer models to solve hydrologic, hydraulics and sediment transport problems. In addition, he has extensive programming and application experience with the HEC-6 program, which deals with scour and deposition processes in rivers and reservoirs. His PhD research involved the study of incipient sediment motion for gravel-bedded streams and rivers within the State of Oregon. He is skilled in the use of HEC-1, HEC-2, HEC-RAS, HEC-6 and other hydraulic and sediment transport software.
A published author, Dr. Matin’s expertise and experience includes hydraulic design of pool and riffle systems for fish enhancement, bank stabilization, channel migration, sediment balance, wave induced bank erosion and literally hundreds of bridge scour and bridge hydraulics studies. His professional and academic experiences have given him in-depth knowledge of: the Columbia River basin, the John Day River basin, Oregon State waterways through contract work for the Oregon Department of Transportation, and the entire Pacific Northwest through multi-year consulting contracts for the Federal Highway Administration and Bonneville Power Administration. Dr. Matin leads PWR’s studies in geomorphology and application of 2-D modeling for analysis and design.
Mr. Jelen is a respected principal engineer with over 13 years of specialized professional experience in the field of water resources and GIS analysis. He has an outstanding reputation for solving problems related to low flow and flood flow hydrology, hydraulics and flood management, as well as water quality data analysis and TMDL modeling. He is a leader in using advanced GIS tools in a practical and effective manner to automate water resources modeling, and an expert in the creation of current standard FEMA Digital Flood Information Rate Maps (DFIRMs). He is also an expert in the analysis and numerical modeling of sediment transport and pollutants from urban surfaces and into streams. He has extensive technical expertise in the application and use of EPA-, XP- and PC-SWMM, HEC-1, HEC-2, HEC-HMS, HEC-RAS, HSPF and SIMPTM, and computerized mapping tools such as ArcView, ArcCAD, AutoCAD, and MapInfo.
Mr. Jelen has provided the leadership and technical guidance needed for PWR to produce DFIRMs of approximately 216 miles of rivers and streams located throughout the Oregon counties of Clackamas, Clatsop and Washington. He has extensive experience in using advanced GIS tools in a practical and effective manner to automate and support water resources and floodway modeling. Mr. Jelen’s development of highly efficient mapping and modeling tools has enabled PWR to produce current, standard FEMA mapping products at below competitor’s rates. This is the major reason for the recent FEMA award to Clean Water Services of $390,000 needed to fund 75% of the cost of remapping approximately 175 miles of rivers and streams. He has provided direct input to FEMA and its technical reviewer, Michael Baker, Jr., Inc., resulting in important revisions found in today’s FEMA DFIRM Standards. Mr. Jelen leads PWR’s technical applications and the development of new methods and procedures as required by client’s needs.
Mr. Pommier is a senior water resources engineer with technical expertise in project management, river hydraulics, hydrology and water quality. He has 24 years of experience in civil engineering including thirteen years specializing in the water resources field. Project experience and capabilities include stormwater management, floodplain delineation, watershed hydrology studies and instrumentation, hydrology and hydraulics for wetland mitigation projects, design of water quality facilities, bank stabilization, NPDES stormwater permitting and urban hydrology and hydraulics. He is proficient in the use of HEC-1, HEC-2, HEC-RAS, XP-SWMM, EPA-SWMM, KCRTS, Dambrk, HY8, FlowMaster and several others.
Mr. Pommier’s greatest strength lies in his ability to implement solutions through the development of construction documents. He has spearheaded numerous projects from multi-million dollar municipal utility improvements to highly technical, high visibility dam spillway upgrades. No stranger to innovation, he was a member of the original design team that developed the compost stormwater filter which ultimately grew into Stormwater Management, Inc. The stormwater filter pilot project won the Grand Award from the American Council of Consulting Engineers in 1992. Mr. Pommier leads the firm’s design and construction documents efforts.