Schnabel Engineering, Inc.

Schnabel Engineering, Inc.

Existing Dams Engineering Services



Schnabel has extensive experience in providing engineering services for existing dams. These services range from periodic visual inspections of dams and appurtenant facilities, to design and construction services for upgrading, expansion, or removal. Each dam is uniquely characterized by its site setting, age, construction materials, and project facilities arrangement. We understand that a dam's long-term performance depends as much on the appropriate behavior of its foundation, as it does on the behavior and interaction of the constructed project facilities.

For existing dams, our services include:

  • Inspections
  • Hydrologic and Hydraulic Analyses
  • Yield, Flow, and Reservoir Operations Modeling
  • Structural Analyses
  • Site Investigations/ Subsurface Exploration
  • Geotechnical Analyses
  • Geological and Earthquake Ground Motion Assessments
  • Remedial Design
  • Reservoir Expansion
  • Permitting
  • Bid Phase
  • Construction Engineering

Schnabel has the extensive level of site assessment, alternatives evaluation, and design expertise needed to provide credible site assessments, comprehensive project designs, and realistic cost estimates. Where we recognize potential reservoir expansion or operations benefits to the owner (primarily water supply reservoirs), we will recommend assessment of benefits, costs, and environmental considerations within remedial investigation studies. It is many times more cost effective to integrate, rather than sequence, project upgrading and expansion activities. Also, if project expansion is likely to be considered in the future, the approach to project upgrading can be tailored to more readily accommodate a later expansion.

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