ADS StormTech SC-160LP Design Manual
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ADS StormTech SC-160LP Design Manual

Chamber systems for stormwater management
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StormTech MC-3500 Chamber
SC-160LP, SC-310, SC-740
& DC-780 Design Manual
StormTech
Chamber Systems for Stormwater Management
®
THE MOST
ADVANCED
NAME IN WATER MANAGEMENT SOLUTIONS
®
1
Call StormTech at 860.529.8188 or 888.892.2694 or visit our website at www.stormtech.com for technical and product information.

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Summary of Contents for ADS StormTech SC-160LP

  • Page 1 StormTech MC-3500 Chamber SC-160LP, SC-310, SC-740 & DC-780 Design Manual StormTech Chamber Systems for Stormwater Management ® THE MOST ADVANCED NAME IN WATER MANAGEMENT SOLUTIONS ® Call StormTech at 860.529.8188 or 888.892.2694 or visit our website at www.stormtech.com for technical and product information.
  • Page 2 DESIGN TOOL 2.0 company...

  • Page 3: Table Of Contents

    Table of Contents Introduction ................2 Product Information .

  • Page 4: Introduction

    1.0 Introduction LRFD Bridge Design Specifications and produced to the 1.1 INTRODUCTION requirements of the American Society of Testing Materials StormTech stormwater management systems allow (ASTM) International specifications F2418 (polypropylene storm water professionals to create more profitable, chambers) and F2922 (polyethylene chambers). environmentally sound developments.

  • Page 5: Product Information

    Specifications as well as ASTM F 2418 and ASTM F 2787 ensuring structural adequacy for deeper systems. The StormTech SC-160LP chamber shown on page 4 is the smallest of the chamber family and has been The end corrugations of the DC-780 chamber have not optimized to fit in the shallowest of applications.
  • Page 6 • Only 14” (350 mm) required from top of chamber to bottom of pavement • Only 12” (300 mm) tall • Installs toe to toe—no additional spacing between rows StormTech SC-160LP (not to scale) Nominal Chamber Specifications Size (LxWxH) 85.4” x 25.0” x 12.0” (2170 x 635 x 305 mm) Chamber Storage 6.85 ft...
  • Page 7 ENGLISH TONS (yds System Inches (mm) Storage ft Storage ft 4” 6” 8” 22 (559) 6.85 (0.194) 14.98 (0.424) StormTech SC-160LP 1.1 (0.8) 1.2 (0.9) 1.3 (0.9) 21 (533) 6.85 (0.194) 14.49 (0.410) METRIC KILOGRAMS (m 100 mm 150 mm...
  • Page 8 CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2787 OR ASTM F2922 POLYETHYLENE (PE) CHAMBERS "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". ADS GEOSYTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, PAVEMENT LAYER (DESIGNED ANGULAR EMBEDMENT STONE BY SITE DESIGN ENGINEER) 6"...
  • Page 9 SC-310 CumLAtiVE StorAgE VoLumES PEr ChAmbEr Assumes 40% Stone Porosity. Calculations are Based Upon a Storage Volume Per Chamber ft 6” (150 mm) Stone Base Under Chambers. Chamber and Stone Bare Depth of Water in Cumulative Chamber Total System Cumulative Chamber Foundation Depth in.
  • Page 10 CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2787 OR ASTM F2922 POLYETHYLENE (PE) CHAMBERS "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". ADS GEOSYTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, PAVEMENT LAYER (DESIGNED ANGULAR EMBEDMENT STONE BY SITE DESIGN ENGINEER) 6"...
  • Page 11 SC-310-3 CumLAtiVE StorAgE VoLumES PEr ChAmbEr Assumes 40% Stone Porosity. Calculations are Based Upon a 6” Storage Volume Per Chamber ft (150 mm) Stone Base Under Chambers. Chamber and Stone Depth of Water in Cumulative Chamber Total System Cumulative Bare Foundation Depth in.
  • Page 12 CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2787 OR ASTM F2922 POLYETHYLENE (PE) CHAMBERS "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". ADS GEOSYTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, PAVEMENT LAYER (DESIGNED ANGULAR EMBEDMENT STONE BY SITE DESIGN ENGINEER) 18"...
  • Page 13 SC-740 CumLAtiVE StorAgE VoLumES PEr ChAmbEr Assumes 40% Stone Porosity. Calculations are Based Upon a 6” Storage Volume Per Chamber ft (150 mm) Stone Base Under Chambers. Chamber and Stone Depth of Water in Cumulative Chamber Total System Cumulative Bare Foundation Depth in.
  • Page 14 CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2787 WALL STORMWATER COLLECTION CHAMBERS". "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". ADS GEOSYTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, PAVEMENT LAYER (DESIGNED ANGULAR EMBEDMENT STONE BY SITE DESIGN ENGINEER) 18"...
  • Page 15 DC-780 Cumulative Storage Volumes Per Chamber Assumes 40% Stone Porosity. Calculations are Based Upon a 9” (230 mm) Stone Base Under Chambers. Depth of Water in Cumulative Chamber Total System Cumulative Depth of Water in Cumulative Chamber Total System Cumulative System Inches (mm) Storage ft Storage ft...
  • Page 16 2.0 Product Information 2.5 STORMTECH CHAMBERS 2.6 STORMTECH END CAPS StormTech chamber systems have unique features to The StormTech end cap has features which make the improve site optimization and reduce product waste. chamber system simple to design, easy to build and more The SC-160LP, SC-310, SC-740, and DC-780 chambers versatile than other products.

  • Page 17: Structural Capabilities

    3.0 Structural Capabilities 3.1 STRUCTURAL DESIGN APPROACH 3.2 FULL SCALE TESTING When installed per StormTech’s minimum requirements, After developing the StormTech chamber designs, the StormTech products are designed to exceed American chambers were subjected to rigorous full-scale testing. Association of State Highway and Transportation Officials The test programs verified the predicted safety factors of (AASHTO) LRFD recommended design factors for Earth the designs by subjecting the chambers to more severe...
  • Page 18 3.0 Structural Capabilities 3.4 INJECTION MOLDING 3.6 QUALITY CONTROL To comply with both the structural and design StormTech chambers are manufactured under tight requirements of AASHTO’s LRFD specifications and quality control programs. Materials are routinely tested ASTM F2787 as well as the product requirements of in an environmentally controlled lab that is verified every ASTM F2418 or ASTM F2922, StormTech uses proprietary six months via the external ASTM Proficiency Testing...

  • Page 19: Foundation For Chambers

    4.0 Foundation for Chambers may include increasing the stone foundation, improving 4.1 FOUNDATION REQUIREMENTS the bearing capacity of the sub-grade soils through StormTech chamber systems and embedment stone may compaction, replacement, or other remedial measures be installed in various native soil types. The subgrade including the use of geogrids.
  • Page 20 4.0 Foundations for Chambers TABLE 2 - SC-310 and SC-740 Minimum Required Foundation Depth in inches (millimeters) Minimum Required Bearing Resistance for Service Loads ksf (kPa) Cover Hgt. ft. (196) (192) (187) (182) (177) (172) (168) (163) (158) (153) (148) (144) (139) (134)
  • Page 21 4.0 Foundations for Chambers TABLE 3 - SC-310-3 Minimum Required Foundation Depth in inches (millimeters) Minimum Required Bearing Resistance for Service Loads ksf (kPa) Cover Hgt. ft. (144) (139) (134) (129) (124) (120) (115) (110) (105) (101) (96) (0.46) (150) (230) (230) (230)
  • Page 22 5.0 Cumulative Storage Volumes Tables 4, 5, 6 and 7 provide cumulative storage volumes for the SC-160LP, SC-310, SC-740 and DC-780 chamber systems. This information may be used to calculate a detention/retention system’s stage storage volume. A spreadsheet is available at www.stormtech.com in which the number of chambers can be input for quick cumulative storage calculations.

  • Page 23: Cumulative Storage Volume

    5.0 Cumulative Storage Volumes Table 6 - SC-740 Cumulative Storage Volumes Per Chamber Table 7 - DC-780 Cumulative Storage Volumes Per Chamber Assumes 40% Stone Porosity. Calculations are Based Assumes 40% Stone Porosity. Calculations are Based Upon a 6” (150 mm) Stone Base Under the Chambers. Upon a 9”...

  • Page 24: Required Materials/Row Separation

    6.0 Required Materials/Row Separation crushed, angular stone as shown in Figure 6. The 6.1 CHAMBER ROW SEPARATION geotextile is required between the clean, crushed, angular StormTech SC-740, SC-310 and DC-780 chambers must stone and the subgrade soils, the excavation’s sidewalls be specified with a minimum 6”...

  • Page 25: Inletting The Chambers

    OVERFLOW MANIFOLD The diversion manhole is multi-purposed. It can provide access to the Isolator Row for both inspection and ADS 315WTM (OR EQUAL) WOVEN maintenance and acts as a diversion structure. The GEOTEXTILE OVER FOUNDATION STONE FOR SCOUR PROTECTION...
  • Page 26 7.0 Inletting the Chambers Figure 8 – StormTech Isolator Row Detail SC-160LP - 3' (1.0m) MIN WIDE SC-160LP - 8" (200 mm) HDPE ACCESS PIPE Note: Non-woven geotextile over DC-780 Isolator Row chambers is not required. filter fabric prevents sediments from migrating out of the 7.4 ENHANCED TREATMENT (BMP) –...
  • Page 27 740 chamber is able to release or accept stormwater at a See StormTech’s Tech Sheet #7 for guidance on manifold rate of at least 0.5 cfs (14.2 l/s) through the surrounding sizing. ADS’s Technical Services department can also stone. assist with sizing inlet manifolds for the StormTech chamber systems.

  • Page 28: Outlets For Chambers

    BENEATH CHAMBER To drain the system completely, an underdrain system is located at or below the bottom of the foundation stone. ADS 601 NON-WOVEN PERFOR ATED GEOTEXTILE (OR EQUAL) Some beds may be designed with a pitched base to UNDERDRAIN PIPE ensure complete drainage of the system.

  • Page 29: Other Considerations

    9.0 Other Considerations 9.1 EROSION CONTROL 9.4 LINERS Erosion and sediment control measures must be StormTech chambers offer the distinct advantage and integrated into the plan to protect the stormwater system versatility that allow them to be designed as an open both during and after construction.

  • Page 30: System Sizing

    (2.2 m The bottom and sides of the bed and the top of the StormTech SC-740 / DC-780 embedment stone must be covered with ADS 601 (or bed area per chamber = 33.8 ft (3.1 m equal) a non-woven geotextile (filter fabric). The area S = (C x bed area per chamber) + of the sidewalls must be calculated and a 2 foot (0.6...

  • Page 31: Detail Drawings

    11.0 Detail Drawings Figure 16 – 4” Inspection Port Detail Figure 17 – 6” Inspection Port Detail CONCRETE COLLAR 18" (450 mm) MIN WIDTH PAVEMENT CONCRETE COLLAR NOT REQUIRED FOR UNPAVED APPLICATIONS 12" (300 mm) NYLOPLAST INLINE DRAIN BODY W/SOLID HINGED COVER PART# 2712AG6IP* SOLID COVER: 1299CGC* CONCRETE SLAB...
  • Page 32 (PVC, HDPE, ETC.) INSERTA TEE CONNECTION INSERTA TEE TO BE INSTALLED, CENTERED OVER CORRUGATION PLACE ADS GEOSYNTHETICS 315 WOVEN GEOTEXTILE (CENTERED ON INSERTA-TEE SECTION A-A SIDE VIEW INLET) OVER BEDDING STONE FOR SCOUR PROTECTION AT SIDE INLET CONNECTIONS. GEOTEXTILE MUST EXTEND 6" (150 mm)

  • Page 33: Inspection And Maintenance

    The JetVac process shall only be performed on StormTech Rows that have AASHTO class 1 woven geotextile over the foundation stone (ADS 315ST or equal). Examples of culvert cleaning nozzles appropriate for Isolator Row maintenance. (These are not StormTech products).
  • Page 34 12.0 Inspection & Maintenance STORMTECH ISOLATOR™ ROW - STEP-BY-STEP 12.3 ECCENTRIC PIPE HEADER INSPECTION MAINTENANCE PROCEDURES Theses guidelines do not supercede a pipe manufacturer’s recommended I&M procedures. Consult Step 1) Inspect Isolator Row for sediment with the manufacturer of the pipe header system for A) Inspection ports (if present) specific I&M procedures.

  • Page 35: General Notes

    13.0 General Notes 1. StormTech (“StormTech”) requires installing 5. AASHTO M288 Class 2 non-woven geotextile (filter contractors to use and understand StormTech’s latest fabric) must be used as indicated in the project plans. Installation Instructions prior to beginning system 6. Stone placement between chamber rows and around installation.

  • Page 36: Stormtech Product Specifications

    14.0 StormTech Product Specifications 2.7 The SC-740 and SC-310 chambers shall have forty 1.0 GENERAL eight orifices penetrating the sidewalls to allow for StormTech chambers are designed to control storm lateral conveyance of water. water runoff. As a subsurface retention system, StormTech chambers retain and allow effective 2.8 The chamber shall have two orifices near its top to infiltration of water into the soil.

  • Page 37: Chamber Specifications For Contract Documents

    15.0 Chamber Specifications for Contract Documents SC-160LP STORMTECH CHAMBER SPECIFICATIONS 1. Chambers shall be Stormtech SC-160LP. • To ensure a secure joint during installation and backfill, the height of the chamber joint shall not be less than 1.5”. 2. Chambers shall be arch-shaped and shall be manufactured from virgin, impact-modified polypropylene copolymers.
  • Page 38 15.0 Chamber Specifications for Contract Documents SC-740 STORMTECH CHAMBER SPECIFICATIONS 1. Chambers shall be Stormtech SC-740. • To ensure a secure joint during installation and backfill, the height of the chamber joint shall not be less than 2”. 2. Chambers shall be arch-shaped and shall be manufactured from virgin, impact-modified polypropylene copolymers.
  • Page 40 ADS “Terms and Conditions of Sale” are available on the ADS website, www.ads-pipe.com Advanced Drainage Systems, the ADS logo and the Green Stripe are registered trademarks of Advanced Drainage Systems, Inc. StormTech ® and the Isolator ® Row are registered trademarks of StormTech, Inc.

This manual is also suitable for:

Stormtech sc-310Stormtech sc-740Stormtech dc-780

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