ADS StormTech DC-780 Design Manual Download

Page: 36 / 40

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860.529.8188

888.892.2694

or visit our website at

www.stormtech.com

for technical and product information.

14.0 StormTech Product Specifications

2.7 The SC-740 and SC-310 chambers shall have forty

eight orifices penetrating the sidewalls to allow for

lateral conveyance of water.

2.8 The chamber shall have two orifices near its top to

allow for equalization of air pressure between its
interior and exterior.

2.9 The chamber shall have both of its ends open to

allow for unimpeded hydraulic flows and visual

inspections down a row’s entire length.

2.10 The chamber shall have 14 corrugations.

2.11 The chamber shall be analyzed and designed

using AASHTO methods for thermoplastic culverts
contained in the LRFD Bridge Design Specifications,
2

Edition, including Interim Specifications through

2001. Design live load shall be the AASHTO design

truck. Design shall consider earth and live loads as

appropriate for the minimum to maximum specified
depth of fill.

2.12 The chamber shall be manufactured in an ISO

9001:2000 certified facility.

3.0 END CAP PARAMETERS

3.1 The end cap shall be designed to fit into any

corrugation of a chamber, which allows: capping a
chamber that has its length trimmed; segmenting
rows into storage basins of various lengths.

3.2 The end cap shall have saw guides to allow easy

cutting for various diameters of pipe that may be

used to inlet the system.

3.3 The end cap shall have excess structural adequacies

to allow cutting an orifice of any size at any invert

elevation.

3.4 The primary face of an end cap shall be curved

outward to resist horizontal loads generated near the

edges of beds.

3.5 The end cap shall be manufactured in an ISO

9001:2000 certified facility.

1.0 GENERAL

1.1 StormTech chambers are designed to control storm

water runoff. As a subsurface retention system,
StormTech chambers retain and allow effective
infiltration of water into the soil. As a subsurface
detention system, StormTech chambers detain and
allow for the metered flow of water to an outfall.

2.0 CHAMBER PARAMETERS

2.1 The Chamber shall be injection molded of an impact

modified polypropylene or polyethylene copolymer
to maintain adequate stiffness through higher
temperatures experienced during installation and

service.

2.2 The nominal chamber dimensions of the StormTech

SC-740 and DC-780 shall be 30.0” (762 mm) tall,
51.0” (1295 mm) wide and 90.7” (2304 mm) long.
The nominal chamber dimensions of the StormTech
SC-310 shall be 16.0” (406 mm) tall, 34.0” (864 mm)
wide and 90.7” (2304 mm) long. SC-160LP shall
be 12”(305mm) tall, 25” (635 mm) wide and 90.7”
(2304mm) long. The installed length of a joined
chamber shall be 85.4” (2169 mm).

2.3 The chamber shall have a continuously curved

section profile.

2.4 The chamber shall be open-bottomed.

2.5 The chamber shall incorporate an overlapping

corrugation joint system to allow chamber rows of
almost any length to be created. The overlapping
corrugation joint system shall be effective while
allowing a chamber to be trimmed to shorten its

overall length.

2.6 The nominal storage volume of all StormTech

chambers includes the volume of the clean, crushed,
angular stone with an assumed 40% porosity. The
nominal storage volume of a joined StormTech SC-
740 chamber shall be 74.9 ft

(2.1 m

) per chamber

when installed per StormTech’s typical details.

This equates to a storage volume per unit area of
bed of 2.2 ft

/ft

(0.67 m

). The nominal storage

volume of a joined StormTech DC-780 chamber
shall be 78.4 ft

(2.2 m

) per chamber when installed

per StormTech’s typical details. This equates to a
storage volume per unit area of bed of 2.3 ft

/ft