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• Proie ei4ence, • Supercritical channel model WASURO developed by the Army Corps of Engineers; • Federal Highways Administration WSPRO for steady -state backwater profiles. The following is a partial list of two- dimensional hydraulic programs used by Boyle: • Army Corp of Engineers RMA2 (TABS), which is a finite - element hydrodynamic model for steady -state and transient analysis. • USGS Diffusion Hydrodynamic Model (DHM), which is a finite - difference diffusion, hydrodynamic model. • Army Corp of Engineers SED -21D for sediment transport numerical modeling. • Army Corp of Engineers HIVEL is used for high velocity flow in concrete -lined channels for supercritical flow. • Federal Highways Administration FESWMS for modeling bridges. Conducting a detailed hydrologic investigation often requires accessing and using a large volume of data including streamflows, reservoir contents and releases, diversions, ditch characteristics, water rights, rainfall, snowfall, temperature, evaporation, ground water pumping, and other pertinent data. Efficient management of this data is a prerequisite to an efficient, successful investigation. Boyle is familiar with and regularly uses most of the major sources of water data for Colorado and the U.S. Data maintained in computerized data bases such as HYDROBASE, GWSI, WATSTORE, STORET, and OASIS are usually obtained and processed directly by Boyle's computerized data retrieval and management procedures. In addition, Boyle has in -house the U.S. West HYDRODATA and CLIMATE DATA databases which contain all of the recorded USGS streamflow, lake level, water quality, and NOAA meteorological daily values for the 17 western states. Most of the agencies maintaining the databases described above have their own unique data management systems. Boyle's engineers and computer scientists are familiar with the storage, retrieval, and programming aspects of these agency systems as well as many general purpose data management systems, including ACCESS, dBase IV, ARCINFO, MOSS, PC File, and DMS. Rpelines, Pump Stations, and Hydroelectric Power Generation Boyle's expertise in pipelines, pump stations and hydroelectric power generation evolved from literally hundreds of major water conveyance projects involving our firm over the past 60 years. Our firm has been involved in the planning, design and construction phase services for pipelines totaling over 10,000 miles up to 120" in diameter, more than 500 pumping stations, up to 360 mgd in capacity, and storage facilities to 40 mg. Water pipelines engineered by Boyle have ranged from small diameter distribution pipelines up to major transmission pipelines with diameters in excess of 100- inches. Installations have included all types of terrain and varying soil and rock conditions. Pipe materials have included ductile iron, polyvinyl chloride, reinforced concrete, prestressed concrete, pretensioned concrete, and steel with various types of linings and coatings. 29