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When you think of large construction projects, your mind likely imagines the resulting physical structures. What probably doesn’t come to mind is a critical aspect of most projects, utilities. Whether residential, commercial, industrial, or larger-scale infrastructure projects, almost every construction project will have to consider the installation of utilities in one way or another.

Now it’s not uncommon to overlook this critical component of construction projects. With most utilities buried underground, our minds are shielded from these elements just like the utilities themselves. What we don’t see includes the likes of sewers, water supply pipes, storm drains, utility pipes, and more. These fundamental elements are known as wet utilities in the construction industry.

At Muller, Inc., we routinely install and maintain water, storm, and sanitary sewer infrastructure. Our trusted crews have experience working with developers, heavy highways, municipalities, and utility companies to install and maintain both wet and dry underground infrastructure throughout Virginia, Maryland, and Washington, D.C.

This blog will take a closer look at five wet utility installations that are typical of large-scale construction and infrastructure projects in the greater D.C. metro region.

1. Sewer Mainline

Current sewer mainlines are usually made out of PVC, colored green in order to make sure it does not get confused with a water pipe. Before PVC became the material of choice, mainlines were also made of clay, cast iron, and fiber. Sewer lines are normally the very first utility that is connected as they are traditionally installed the deepest in order to make certain that waste is not able to leak into other lines.

Sewer systems primarily rely on gravity to assist with the movement of sewage from homes to off-site treatment facilities, though on occasion a pump line may be put into position if the flow line is overly flat.

2. Storm Drains

A storm drain directs away all forms of excess water from a site and sees it discharged into canals, lakes, oceans, reservoirs, rivers or seas. It may also be discharged into large basins or conveyed to treatment facilities. Reinforced concrete pipe is the most commonly used material here, although storm drains are often composed of high-density polyurethane, corrugated metal or corrugated plastic. Storm water piping plays a crucial role in storm drainage infrastructure, ensuring efficient water flow and integration with other drainage structures.

Stormwater first enters the storm drain system via the catch basins that are situated on either side of a street and then exits through concrete outlet structures.

3. Water Mainline

As is also the case with the sewer line, PVC is relied upon for water utilities (though ductile iron is also an option). Potable water utilities are usually the shallowest utility line to ensure that any sewer or storm drain leaks do not get into drinking water.

Water installation is also composed of backflow preventers, blow-off assemblies, and fire hydrants.

4. Sewer Laterals and Water Services

The main water and sewer pipe that runs beneath streets is called the “mainline,” with the individual lines breaking away from the sewer mainline to give service to houses being known as “sewer laterals,” with the laterals for water being known simply as “water services.”

The wet utility installation of these laterals/services will extend to a particular point beyond the gutter and curb prior to the plumber of the individual home or commercial property later coming in and extending it to fully reach the house.

Laterals and services are usually left above ground by the wet utilities installation until the plumber is ready to perform that connection and meter boxes can be set into the ground.

Muller, Inc. is equipped with all of the latest equipment and technology related to the installation of wet utilities. Our experienced crews have worked with land developers, municipalities, utility providers, and heavy highway contractors in the installation and maintenance of both dry and wet underground infrastructure.

5. Reclaimed Water

Designed to help conserve potable water for the highest quality use, water reclamation and reuse has grown considerably in recent years. Reclaim water is routinely used for several commercial applications including irrigation, car washes, the chilling of HVAC systems, and the cooling of data centers. These “purple pipes” are a completely separate utility from the system used to deliver potable water.

Wet Utility Infrastructure Components

Wet utility infrastructure components are the building blocks of a functional and efficient wet utility system. These components include:

  • Pipes and Fittings: Essential for transporting water, sewage, and stormwater, pipes and fittings are typically made from durable materials such as PVC, ductile iron, and reinforced concrete. These materials ensure the longevity and reliability of the wet utility system.
  • Valves and Hydrants: Valves control the flow of water and sewage within the system, while fire hydrants provide critical access points for emergency services. Both are vital for maintaining the functionality and safety of the wet utility infrastructure.
  • Manholes and Access Chambers: These structures provide necessary access to underground pipes and infrastructure, facilitating maintenance and inspection. Manholes and access chambers are strategically placed to ensure easy access for utility providers.
  • Storm Drain Inlets and Outlets: Designed to capture and convey stormwater runoff, storm drain inlets and outlets are crucial components of the storm drain system. They direct stormwater into the storm drainage infrastructure, preventing flooding and water damage.
  • Sewer Laterals and Water Services: Connecting individual properties to the main sewer and water lines, sewer laterals and water services are essential for providing utility services to homes and businesses. These connections ensure that each property has access to necessary wet utilities.

Construction and Installation Consideration- Wet Utility

The construction and installation of wet utility infrastructure require careful planning and execution. Key considerations include:

  • Soil Conditions: The type and stability of the soil can significantly impact the installation process. Proper assessment of soil conditions is crucial to ensure the stability and longevity of the wet utility infrastructure.
  • Water Table: The level of the water table can influence the design and installation of wet utilities. High water tables may require additional measures to prevent water infiltration and ensure the integrity of the system.
  • Environmental Factors: Weather, climate, and environmental regulations play a significant role in the construction process. Compliance with environmental regulations and consideration of local climate conditions are essential for successful installation.
  • Material Selection: Choosing the right materials is critical for the durability and performance of the wet utility system. Factors such as corrosion resistance, strength, and cost-effectiveness must be considered when selecting materials.
  • Trenching and Excavation: Proper excavation and trenching techniques are necessary to prevent damage to existing infrastructure and ensure safe working conditions. Careful planning and execution of these activities are essential for a successful installation.

Maintenance and Inspection – Wet Utility

Regular maintenance and inspection are crucial for ensuring the integrity and performance of wet utility infrastructure. Key activities include:

  • Pipe Inspection: Utilizing advanced techniques such as CCTV and sonar, pipe inspections help identify potential problems and defects within the sewer system. Regular inspections ensure that issues are detected and addressed promptly.
  • Cleaning and Flushing: Routine cleaning and flushing of pipes and infrastructure components help prevent clogging and blockages. This maintenance activity is essential for maintaining the flow and functionality of the wet utility system.
  • Valve and Hydrant Maintenance: Regular maintenance of valves and fire hydrants ensures their proper function and prevents leaks. This maintenance is critical for the reliability and safety of the wet utility infrastructure.
  • Manhole and Access Chamber Inspection: Regular inspection of manholes and access chambers helps identify potential problems and defects. These inspections are essential for maintaining the accessibility and integrity of the underground infrastructure.
  • Storm Drain Maintenance: Regular cleaning and maintenance of storm drains help prevent clogging and blockages. Proper maintenance of the storm drain system is crucial for effective stormwater management and flood prevention.

By following these guidelines and considerations, Muller, Inc. ensures the successful installation and maintenance of wet utility infrastructure, providing reliable and efficient services to communities throughout Virginia, Maryland, and Washington, D.C.

Installation of Wet Utilities

Muller, Inc. will assist with the installation of infrastructure that will be able to meet all municipal, county, state, and federal code requirements throughout all of Maryland, Virginia, and Washington, D.C. Muller, Inc has worked with federal, local public, private civilian and state entities in regards to the installation of many different types of wet utilities

Contact Muller, Inc. today via our website or call us at 703-560-4040 to find out more.