Manholes provide access to underground infrastructure, allowing for inspection, maintenance, and cleaning of pipes, channels, or other conveyance systems.
Our manholes meet all ASTM standards related to materials and manufacturing requirements for precast reinforced concrete manhole sections, including bases, risers, and cone or flat tops.
precast manholes are designed with safety features, such as slip-resistant steps or ladder rungs, to provide easy and safe access for inspection and maintenance.
Designed with tight tolerances and gasketed joints, our watertight manholes reduce the risk of infiltration, exfiltration, and contamination.
Manholes can be designed as overflow or bypass structures to handle excess water during high-flow events, preventing surcharging and reducing the risk of flooding.
Made from high-quality, reinforced concrete, ParkUSA precast manholes are durable, structurally sound, and can withstand harsh environmental factors. Often, the most visible component in a sanitary sewer or stormwater system, the manhole provides crucial access and maintenance capabilities for underground conveyance structures.
Made with modular precast components including a base, riser, a cone or flat top, and a lid made of either metal or concrete, each manhole is customized for project and municipal requirements. The base accommodates pipe connections and may feature preformed inlets and outlets for the flow of stormwater. The riser sections vary in height and can be stacked to reach a desired depth, while the cone or flat top provides a smooth transition to the surface level. Our manholes are manufactured in our NCPA-certified plants for consistent quality and dimensional accuracy.
A manhole plays an important role in channeling water efficiently in a sanitary sewer or stormwater system. They serve as an access point for inspection and maintenance of underground structures while also providing a means of regulating the flow of water.
A manhole is typically installed at key locations along the sewer line where there is a change in direction or elevation. This helps to ensure that the wastewater or stormwater flows smoothly through the system and does not cause blockages or backups. The manhole allows water to flow into the sewer or stormwater lines through inlet pipes located in the base of the structure. The water then flows through the line until it reaches the next manhole or treatment plant.
Inside the manhole, the flow of water is regulated by various components such as inlet and outlet pipes, a drop manhole, and an effluent filter. These components help to slow down the flow of water and prevent debris and solids from passing through and clogging the sewer system.
During heavy rainfall or flooding events, the manhole can also act as a relief point for excess water. The excess water can be diverted into the manhole and held until the flow in the system subsides.
Precast manholes are an essential component of any wastewater or stormwater system and provide crucial access to underground conveyance structures.
Wastewater manholes are an essential component of sewer systems, providing access and maintenance capabilities for underground conveyance structures.
Precast manholes serve as collection points for stormwater runoff from streets, parking lots, and other impervious surfaces, directing the water into the stormwater management system.
Precast manholes can include sedimentation or filtration components to remove debris, sediment, or pollutants from flow before discharging it into water bodies or infiltration systems.
Manholes are used in various municipal infrastructure systems, including water treatment facilities, water storage tanks, water treatment plants, and pump house stations.
Manholes can be integrated with flow control devices, such as weirs or orifices, to regulate stormwater flow and reduce the risk of downstream flooding or erosion.
Manholes facilitate changes in pipe size, direction, or slope, allowing for efficient conveyance of stormwater through the drainage system.
Manholes can serve as inlet or outlet structures for stormwater detention or retention ponds, controlling the flow of water into and out of these facilities.
With over 35 years of experience, we offer proven water management innovation, technology, and service.
"*" indicates required fields
Want to boost your team's knowledge? Need a quick refresher? ParkUSA offers free “Lunch & Learn” presentations to architect and engineering firms, private companies and public-sector agencies. Let us know your area of interest and the appropriate ParkUSA subject matter expert will come to your office, providing lunch, and spend 30 to 45 minutes sharing their knowledge, expertise and experiences with your team. Our Lunch and Learn program is designed to qualify for 1.0 Professional Development Hour for Professional Engineers.
Call or email us for more information.
"*" indicates required fields
"*" indicates required fields
Enter your email address to gain access to product resources.
"*" indicates required fields
If you wish to receive a physical copy of our Product catalog, please fill out the information below and we will send you one. Please select which catalog you wish to receive.
"*" indicates required fields
