A2 Liner Rehabilitates Existing Sanitary Sewer Line
After the existing reinforced concrete pipe (RCP) sanitary sewer line sustained significant damage from hydrogen sulfide sewer gas, it was sliplined with Contech’s A2™ Liner. This liner was selected for its ability to resist the corrosive effects of sewer gases, and it also reduced the overall cost and length of the project.
A Custom Thrust Arch-style Continental®Pedestrian Truss was selected as the best solution to provide pedestrians safe access over the busy four-lane Peachtree Parkway. The new structure connects the existing Forum shopping center to the city’s new Town Center.
During the development of three full-size ice rinks in the desert, an innovative approach was used to design a custom rainwater collection and reuse system. DuroMaxx Steel Reinforced Polyethylene (SRPE) pipe and three CDS hydrodynamic separators were selected for the ability to meet the project's strict requirements.
After the Absaraka Dam's spillway overtopped and was close to a catastrophic failure, the best solution to rehabilitate the dam and protect the surrounding homes and farmland was to install ArmorFlex Class 40T Mats. The mats met both the design and budget requirements.
Manhole Connections for Profile Walled PVC Sewer Pipe
Most storm sewers are simply grouted into a manhole using non-shrink grout and a water-stop gasket, when appropriate. Contech has supplied both the “double fluted” and “single fluted” pipe gaskets for the “water-stop”, which is simply used to help the concrete/grout adhere to something other than the very smooth/slick PVC surface.
The intent is to help stop water from intruding from the exterior to the interior (infiltration). In some cases, preventing any leakage, infiltration & exfiltration, if desired. There are some agencies that require storm sewer manholes to use a booted or compression connection, but those are more the standard in the sanitary sewer segment.
Biofiltration in Cold Climates: Risks, Realities and Proven Design Strategies
Biofiltration and bioretention systems are sometimes viewed skeptically in cold climates, where freezing temperatures, snow management, and deicing practices raise concerns about performance and durability. In practice, however, many biofiltration systems operate successfully in cold regions when they are designed with winter conditions in mind. The key is understanding potential cold-climate risks and mitigating them through thoughtful design, operation, and maintenance planning.
Contech Engineered Solutions | 9100 Centre Pointe Dr | West Chester, OH, 45069
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