72-Sec 31 37 16 Energy Dissipator.pdf
PDF 81 KB Posted
- Attached to
- 2201256.01 - Whistlestop Park
- Solicitation number
- US.160528
- Issued by
- Montgomery County, Pennsylvania
About this file
This is a technical specification document for an Energy Dissipator component, prepared for Montgomery Township in Montgomery County, Pennsylvania, in connection with the Whistlestop Park rehabilitation project (Contract 2022-01256.01). The specification details the installation of a rock energy dissipator, which serves as a stormwater management feature designed to dissipate energy and prevent erosion. The work includes site preparation through clearing, grubbing, and earthwork; placement of geotextile fabric conforming to Pennsylvania Department of Transportation Publication 408 Specifications Class 1 standards; and careful placement of sound rock material in full thickness to ensure even distribution and minimal voids. The rock material must meet Type A coarse aggregate requirements per Section 703.2 of PennDOT Publication 408, with size and gradation as indicated on project drawings. Installation must be completed in a single operation to prevent segregation, and the surrounding area shall be restored in accordance with applicable grading, seeding, sodding, and planting sections. Related site work including clearing, grubbing, earthwork, excavation, backfill, compaction, and finish grading is referenced as specified in Sections 31 11 00, 31 20 00, 31 23 33, 32 92 00, and 32 93 02.
The specification references Pennsylvania Department of Transportation standards and publication requirements for material quality assurance and installation protocols. Manufacturer's literature for geotextile fabric must be submitted in accordance with Section 01 33 00. All materials require proper handling, transportation, and storage as outlined in Section 01 60 00, with damaged materials to be protected and unsuitable subsurface material removed and replaced with acceptable fill. The Whistlestop Park project, which includes softball field rehabilitation, playground perimeter fencing, pickleball courts, a loop trail, and stormwater basins, is subject to Pennsylvania Prevailing Wage Act requirements and Pennsylvania Public Works Employment Verification provisions, with a bid deadline of April 30, 2026.
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Text version
ENERGY DISSIPATOR
31 37 16-1
SECTION 31 37 16
PART 1 - GENERAL
1.01 SECTION DESCRIPTION
A. The Work of This Section Includes:
1. Rock Energy Dissipator
1.02 RELATED SECTIONS
A. Related Work Specified Elsewhere:
1. Section 31 11 00: Clearing and Grubbing
2. Section 31 20 00: Earthwork
3. Section 31 23 33: Excavation, Backfill and Compaction
4. Section 32 92 00: Finish Grading, Seeding and Sodding
5. Section 32 93 02: Exterior Planting
6. Section 33 44 14: Storm Inlets, Catch Basin, Endwalls, End Sections
1.03 QUALITY ASSURANCE
A. Reference Standards:
1. Pennsylvania Department of Transportation
Publication 408 Specifications Publication 72 Standards for Roadway Construction
1.04 SUBMITTALS
A. Manufacturer's Literature:
1. Submit manufacturer's descriptive literature for the following items in accordance with Section 01 33 00:
• Geotextile Fabric
1.05 PRODUCT DELIVERY, STORAGE & HANDLING
A. During loading, transporting and unloading, exercise care to prevent damage to materials.
B. Other Requirements
1. Section 01 60 00 also addresses transportation of handling along with storage and protection of materials and equipment.
31 37 16-2
PART 2 - PRODUCTS
2.01 BASIC MATERIALS
A. Rock:
1. Acceptable quality; sound; free from structural objects and foreign substances.
2. Rock must come from material providing a Type A coarse aggregate per Section 703.2, Publication 408 Specifications.
3. Rock size and gradation shall conform to requirements indicated on the Drawings and set forth in Section 850, Publication 408 Specifications.
2.02 FABRICATED PRODUCTS
A. Geotextile Fabric:
1. Conform with Section 735, Publication 408 Specifications for Class 1 geotextile.
PART 3 - EXECUTION
3.01 PREPARATION
A. Perform clearing, grubbing, and earthwork in accordance with Sections 31 11 00, 31 20
00, and 31 23 33 as required at location(s) shown on Drawings.
B. Remove unsuitable material below the energy dissipator and replace with acceptable material.
3.02 INSTALLATION
A. Energy dissipator shall be constructed of such size and configuration as shown on the Drawings.
B. Geotextile fabric shall be placed under the proposed rock energy dissipator in accordance with Section 212.3(c), Publication 408 Specifications and the Drawings.
C. Rock shall be carefully placed on the geotextile fabric to produce an even distribution with minimum of voids and without tearing the geotextile fabric.
D. Rock shall be placed in full thickness in one operation in a manner to prevent segregation and rearranged, as necessary to insure uniform distribution.
3.03 RESTORATION
A. Area around energy dissipator shall be restored in accordance with the Drawings and Sections 32 92 00 and 32 93 02.
END OF SECTION
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