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Engineering Services

Engineering Services

DTA offers a full range of hydroelectric and related engineering services provided by technical professionals with as much as 30 years of experience in their disciplines. Our engineers work with clients to carefully identify engineering needs, develop work plans that fully and efficiently address those needs, and implement engineering tasks in a manner that leads to solutions. Our engineering specialties include:

Civil Engineering & Design

Siting studies; dam safety assessment; structural evaluations; repair and rehabilitation; evaluation and design of earth, concrete gravity and arch dams; design, analysis, inspection and evaluation of gates, penstocks, water conveyance systems, roads and bridges; fish passage system design; civil site design; erosion and sedimentation control. Read more...

Electrical Engineering & Design

State-of-the-art electrical and control system upgrades, automation, remote operation and troubleshooting, power systems, station service systems, substation and transmission line design. Read more...

Mechanical Engineering & Design

Selection and specification of equipment, condition assessment, trouble-shooting, engineering audits and life assessments, start-up testing, forensic and metallurgical analysis, turbine and governor upgrades. Read more...

Geotechnical Engineering

Earth dams, tunnels, rock mechanics, seismic analysis and design, dam stability, erosion and seepage evaluations/control, subsurface investigations. Read more...

Hydraulic & Hydrologic Analyses & Modeling

Development of site-specific Probable Maximum Precipitation & Probable Maximum Flood for determination of Inflow Design Flood; evaluation and determination of existing site hydrology, and development of synthetic site hydrology including unregulated inflow; flood-flow frequency analysis, river channel and reservoir routing; open channel modeling and analysis, and closed hydraulic system analysis and design; headloss studies; and efficiency testing and modeling. Read more...

Hydropower Operations & River System Modeling

Desktop computer modeling of river basins and multiple plant operations for use in optimization, strategic planning, upgrade evaluations, evaluation of FERC license constraints and agency negotiations. Read more...

Upgrades and Rehabilitation

Site Evaluation, conceptual designs, feasibility studies, preliminary and detailed design, evaluation of hydromechanical and related power station systems. Read more...

Due Diligence Studies

Data Review and on-site inspections, strategic planning for revenue enhancement and cost reduction development, regulatory and environmental review and risk assessment. Read more...

Transient Analyses

Modeling of conveyance systems and of turbine and governor characteristics, sizing for optimal water conveyance, calculation of transient pressures and speeds. Read more...

Efficiency Measurements

Absolute efficiency testing according to ASME and IEC codes, Winter-Kennedy index testing, head loss measurement, resolution of hydraulic instability and noise and performance and guarantee testing. Read more...

Machinery Condition Assessment

Operational testing of turbines and related power station equipment, vibration measurements and analysis, dynamic frequency analysis and dynamic balancing. Read more...

FERC Part 12

FERC Part 12 inspections, Emergency Action Plans and Functional Exercise, review of existing documents, hydrologic analysis, geologic & seismic reports, stability calculations, dam failure analysis and inundation mapping, field inspections; spillway adequacy evaluation; determination of Inflow Design Flood. Read more...

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