Water Resources Services

Engineering Excellence

Water is a complex and precious natural resource with a mind of its own. At times, it sustains life; at others, it creates hazards that threaten life. There are moments when there is too much water, and others when there is not enough. Water can erode the soil and wash away structures, but it can also deposit sediment and debris. Water resources is an engineering discipline that addresses the challenges associated with water: its quantity, character, and quality.

Hydrologic and Hydraulic Studies

Hydrology is the engineering discipline that calculates the amount of runoff in streams, channels, and pipes based on the characteristics of precipitation events. Hydraulics is the engineering discipline that analyzes the character of flow occurring in streams, channels, pipes, reservoirs, spillways, and other hydraulic structures. Givler Engineering is skilled in performing comprehensive hydrologic and hydraulic studies to assess and manage:

  • Flood risk
  • Storm drain system capacity
  • Reservoir performance
  • Detention systems
  • Dam performance and failure risks
  • Water supply, yield, and availability
  • Risk of erosion and sedimentation

Physical Hydraulic Modeling

Mathematical and computer models are sometimes insufficient to describe complex flow problems adequately. In such cases, we design, construct, and operate scale replicas of dams, reservoirs, and pipe systems to study various hydraulic conditions, including:

  • Spillway performance
  • Scour potential in stilling basins and hydraulic jump zones
  • Turbulence in sanitary sewer systems
  • Evaluating pressure surges and losses in pipe systems

Computer Modeling

Givler Engineering uses computer modeling to simulate and analyze various aspects of water resource systems.

Our hydrologic models simulate watersheds and reservoirs to calculate:

  • Runoff volumes and flow rates based on precipitation, topography, soil, and development conditions
  • Runoff rates that correspond to levels of precipitation risk
  • Reservoir inflow and outflow rates and stages for normal operation ranges and for Probable Maximum Precipitation events

 

Givler Engineering’s hydraulic models simulate flow through streams, channels, pipes, spillways, and other structures to determine:

  • Flow characteristics such as depth, velocity, and turbulence
  • Storm drain system capacity
  • Sanitary sewer system capacity
  • Bridge opening capacity
  • Extents of floodplain
  • Spillway capacity
  • Dam failure impacts
  • Scour and deposition potential

Dam Inspection, Design, & Maintenance

Our water resources engineers are experts at navigating the complexity of dam design, maintenance, and repair and the regulatory demands that accompany dam ownership. These services include:

  • Inspection of existing dam structures
  • Design of new dams
  • Repair and maintenance planning
  • Development of Emergency Action Plans (EAP) for areas downstream of significant and high-hazard dams
  • Spillway capacity determinations
  • Probable Maximum Flood (PMF) studies
  • Dam break analyses
  • Regulatory compliance solutions

Understanding Dam Regulations and Responsibilities

If you are responsible for the upkeep and maintenance of a dam, you need to be aware of your state’s dam hazard classification system and how changes in development downstream of a dam can affect its status and your liability. A dam’s hazard classification is not based on the likelihood of failure but on the potential for downstream loss of life, destruction of property, and environmental damage should it fail.

The agency overseeing dam safety may reclassify a low-hazard dam as a significant or high-hazard dam based on new downstream development, such as residential subdivisions, commercial sites, or highways. Although these changes may be outside your control, you will still be subject to the more stringent safety and regulatory requirements that significant- and high-hazard dams must meet. This may require substantial upgrades such as spillway enlargements, EAP development, and increased maintenance costs.

How We Can Help

We’ll use our decades of experience and expertise to help you understand these classifications and their obligations and meet the associated technical and financial challenges. 

In this pursuit, we can: 

  • Coordinate with regulatory agencies to promote communication and to work toward compliance
  • Determine necessary structural changes, maintenance, and renovations 
  • Develop alternative solutions and their costs to give you choices in how to proceed
  • Identify impacts caused by actual and proposed changes
  • Explore funding options to make repairs and upgrades 
  • Assist you in developing a phased implementation plan to manage costs over time
  • Identify opportunities for cost offsets through partnerships with other concerned stakeholders

Contact Givler Engineering Today

We are a civil engineering firm with an extensive background in water management, flood control, and dam services. Whether you need solutions to technical challenges or assistance addressing the financial or regulatory aspects of the situation, Givler can help. Reach out today to discover how we can put our legacy of excellence to work for you.