Solution: County Materials supplied reinforced concrete pipe and supporting precast manhole structures to manage stormwater and an underground river for this complex Waukesha project.
RCP Strength Powers Critical Stormwater Control
The Area 7 Flood Mitigation Storm Sewer and Channel Improvements project in Waukesha, Wisconsin, tackled a unique challenge: controlling an underground river and directing stormwater to large holding tanks in a tight, constrained urban site. Project leaders specified reinforced concrete pipe (RCP) for its ability to handle high flow rates and deliver long-term durability under demanding conditions.
County Materials manufactured and delivered horizontal elliptical RCP and rectangular manhole structures, ensuring reliable performance and structural integrity for the underground system. The RCP served as the backbone of the solution, handling the bulk of stormwater flow, while the precast manholes facilitated access and water storage.
To ensure the project's timely completion, County Materials provided careful coordination of deliveries with Willkomm Excavating to overcome challenges caused by the frozen ground and the need for extensive dewatering.
Through proactive planning and reliable service, County Materials ensured the successful implementation of this critical stormwater management system. The reinforced concrete pipe met rigorous engineering requirements while providing a long-lasting foundation for the area’s water management infrastructure.
Project Highlights:
This project demonstrates how large-diameter RCP can manage high flow rates in challenging conditions, supported by timely delivery and precise coordination. County Materials’ experience helped the contractor navigate winter installation and tight site constraints
