Those who plan and implement infrastructure programs must be visionaries, whether for new urban development or for urban renewal and restoration. Urban planners must predict population density and potential infrastructure use and then build systems capable of supporting communities for decades into the future.
Bridges, dams and ports are more visible parts of a community’s infrastructure. Manholes and sewers are less visible yet equally as important. The EPA estimates there are more than 20 million manholes in the United States,1 with the majority installed prior to the 1960s and in many communities, more than 100 years ago.
Choosing the right materials and partnering with a seasoned expert like Mack Industries for precast concrete manholes and sewer systems ensures durability and reliable performance for future generations. A reputable supplier facilitates the selection and sizing process and guarantees proper installation, streamlining your project from start to finish.
Manholes are essential access points to underground public utilities, allowing for inspection, maintenance, and system upgrades. They serve various utilities, including wastewater, telephone, electricity, storm drains, heating, and gas, but are most commonly associated with sewer systems.
Industry experts widely regard manhole rehabilitation as a highly effective yet often underutilized method for reducing inflow and infiltration (I/I) in sewer systems. Addressing issues at the manhole level can significantly enhance the performance and capacity of sewage treatment facilities, ensuring a more efficient and durable infrastructure.
At Mack Industries, we understand the critical role that well-maintained manholes play in the overall health and efficiency of public utility systems. Our expertise and commitment to quality ensure that our solutions will meet the highest standards of performance and durability, providing long-lasting benefits to your projects.
Material Choices for Manholes
The three main materials used in today’s manhole construction are fiberglass, HDPE or concrete, either precast or poured onsite. Precast concrete manholes have an unmatched reputation for quality and lifespan—they can last for more than 100 years.
Mack Industries supplies Ohio, Pennsylvania, Michigan, North Carolina and Florida with precast sanitary and storm manholes as well as other precast concrete products. Mack Industries is DOT approved in several states and supplies superior service and high quality.
Advantages of precast concrete manholes include:
- Protection – concrete is non-flammable and watertight
- Superior Strength – concrete won’t be affected by backfill
- Speed – precast manholes can be installed on demand and immediately backfilled
- Ease of installation – precast concrete can be installed in one day
- Buoyancy – precast concrete has a higher specific gravity compared to other materials
- Uniformity – precast is made in a controlled environment ensuring the highest quality
- Lifespan – concrete manholes can last more than a century
Environment
Concrete is a nontoxic and environmentally safe material, crafted from natural ingredients. Companies pursuing LEED certification frequently opt for concrete due to its minimal site disturbance during installation and its effectiveness in managing stormwater runoff. Additionally, concrete products commonly utilize regionally sourced materials, making them a more environmentally friendly choice compared to other alternatives. The majority of materials used in the production of concrete manholes are typically sourced within a 500-mile radius of the manufacturing plant.
At Mack Industries, we pride ourselves on delivering products that not only meet the highest standards of durability and performance but also contribute positively to environmental sustainability. Our extensive knowledge and commitment to quality ensure that our concrete solutions will support your projects’ eco-friendly credentials while providing long-lasting benefits.
Mack Industries provides a comprehensive range of manhole options, available in diameters from 48″ to 96″, all constructed to meet ASTM C-478 standards. For more information on our standard features or to inquire about availability, please contact Mack Industries at 800-482-3111 or reach out to us directly.
