A senior housing development in Baton Rouge, Louisiana, was built to help vulnerable seniors, especially those affected by flooding that took place in August 2017 that wiped out 13,000 rental units. The four-story complex includes 88 one-bedroom apartments and 11 two-bedroom apartments.
The new facility called for a stormwater system to capture runoff from the new building’s roof and other impervious surfaces. The Engineer of Record, CSRS, needed an underground detention system to provide approximately 62,000 CF of storage to meet local runoff regulations. The plans and specifications showed a basic footprint area where the systems could be located. However, the specifier asked the contractor to develop a cost-effective solution with the detention system manufacturer.
Triton Contracting from Lafayette, LA, had worked with Contech and Lafayette Winwater on many projects and asked Contech to develop a solution for the site. The site was challenging due to the limited space in which to install the system. Contech Stormwater Design Engineers determined the most cost-effective solution was to build two separate systems. The first system was built using 433’ of 84” perforated corrugated metal pipe (CMP), providing 16,645 CF of storage in the pipe and an additional 10,185 CF of storage in the stone. The second system was built using 953’ of 66” perforated CMP providing 22,886 CF of storage in the pipe and an additional 12,774 CF of storage in the stone.
Contech provided detailed hydraulic calculations, and design drawings for submittal to the EOR, and the manufacturing, delivery, and installation of the two systems were completed on schedule.