PRODUCTS USED
- 862 StormTech MC-3500 Chambers
- Ten 30" (750 mm) Nyloplast® Drain Basins
- 1,260' (384 m) of 6" (150 mm) N-12 HDPE Dual Wall Pipe
- 340' (104 m) of 10” (250 mm) N-12 HDPE Dual Wall Pipe
- 1,180 (360 m) of 12” (300 mm) N-12 HDPE Dual Wall Pipe
- 940 (287 m) of 18” (450 mm) N-12 HDPE Dual Wall Pipe
- 1,380 (420 m) of 24” (600 mm) N-12 HDPE Dual Wall Pipe
- 100 (30 m) of 30” (750 mm) N-12 HDPE Dual Wall Pipe
- 1,420 (433 m) of 36” (900 mm) N-12 HDPE Dual Wall Pipe
The new building, located on a former military base that once housed C-130 aircraft, will accommodate up to five Boeing 747-400s.
Because the project required slowing stormwater discharge into the municipal sewer, an underground retention system was designed using StormTech MC-3500 chambers. While the Sigma Group considered the larger MC-7200 chambers, the site’s high groundwater levels from an underground stream and challenging soil conditions made the MC-3500 the optimal choice. StormTech’s unmatched range of chamber sizes, more than any system in the industry, allowed the team to select the exact configuration needed to maximize performance and constructability.
Stormwater is captured through ten 30” (750 mm) Nyloplast Drain Basins and conveyed via various sizes of N-12 HDPE Dual Wall pipe to the StormTech system. Isolator® Rows were incorporated to capture sediment and improve water quality before the stormwater is released into the city system.
Additionally, N-12 perforated pipe with a protective sock was installed as underdrain infrastructure to help remove subsurface water, keeping soils dry and minimizing the risk of pavement damage caused by freeze-thaw cycles.
StormTech chambers are designed to save valuable land, reduce flooding risks and protect water resources. The chambers provide a durable structural system and are designed in accordance with AASHTO LRFD Bridge Design specification for HS-20 live loads. StormTech chambers are available in a variety of sizes to meet any project need and are injection molded for uniform wall thickness. StormTech end caps can be either pre-cut or cut in the field to fit the manifolds, which saves installation time. The end caps also add to the structural integrity of the system and provide storage capacity.
Nyloplast drain basins and curb inlets were custom built for the project as they are for each application. Nyloplast products are more durable and corrosion resistant than precast basins and combine a rugged PVC structure with ductile iron grates. The basins can be easily adjusted in the field to meet the final grade. The structures are shipped with rubber gaskets to ensure a watertight connection.
N-12 dual wall pipe, made using high-density polyethylene (HDPE), has a corrugated exterior and smooth interior wall that provide exceptional strength and hydraulics. The inert HDPE material is resistant to the effects of chemicals, abrasions and hot soils. N-12 is available in 4”-60” (100-1,500 mm) diameters and in 20’ (6 m) lengths. The inline bell design allows for pipe ends to be pushed together for easy installation. N-12 ASTM pipe meets the requirements of ASTM F2648, while the fittings conform to ASTM F2306.
Advanced Drainage Systems, Inc. is a leading manufacturer of innovative stormwater and onsite septic wastewater solutions that manages the world’s most precious resource: water. ADS and its subsidiary, Infiltrator Water Technologies, provide superior stormwater drainage and onsite septic wastewater products used in a wide variety of markets and applications including infrastructure, aviation, transportation, commercial and residential, while delivering unparalleled customer service. adspipe.com
