60-Sec 32 17 26 - ADA DETECTABLE WARNING SURFACE.pdf
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- Bucks County, Pennsylvania
About this file
This is a technical specification document for ADA Detectable Warning Surface installation prepared for the Municipal Authority of the Borough of Morrisville, Pennsylvania, as part of the 2026 Design/Build Curb Ramp Project. The work involves the installation of ADA/PennDOT-compliant detectable warning surfaces (DWS) at specified locations within Morrisville Borough. The detectable warning tiles must be manufactured by a PennDOT Bulletin 15 approved manufacturer, constructed as polymer composite material with epoxy polymers and aluminum oxide particles in truncated domes, finished in Brick Red color, and measuring 24 inches nominal width with 0.1875 inch face thickness tolerance of ±5 percent maximum. Installation shall follow manufacturer recommendations and be performed without creating tripping hazards. The specification requires that tiles be protected against damage during the construction period and that all work comply with PennDOT Publication 408 and Borough Standards. Submittals must include manufacturer certifications confirming compliance with designated specifications and documented qualifications demonstrating the installer has minimum five years of tile installation experience and completed similar projects of comparable size and nature.
The detectable warning tiles are provided with a five-year written guarantee covering defective work, breakage, deformation, and loosening of tiles from the date of final completion. The specification document does not address pricing, bid amounts, funding sources, or set-aside designations. Sealed bids for this project are due electronically through PennBid by 10:00 AM on November 13, 2025, and must include a certified check or bid bond of not less than ten percent of the bid amount. The project allows for a base bid and seven alternate bids, with all material, labor, and equipment supplied by the contractor in accordance with applicable standards.
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Text version
ADA DETECTABLE WARNING TILES
32 17 26-1
SECTION 32 17 26
ADA DETECTABLE WARNING SURFACE
PART 1 GENERAL
1.01 DESCRIPTION OF WORK
A. This Work is the installation of ADA/PennDOT compliant detectable warning surfaces (DWS) at locations specified in the field and on the drawings.
1.02 SUBMITTALS
A. Certifications: Submit certifications that all tiles will meet or exceed designated specifications.
B. Qualifications of Installer:
1. Installer shall have a minimum of five (5) years of experience with tile installations.
2. Installer shall submit for approval, a list of projects similar in nature and size that establishes his/her ability to complete this project. A resume for the project superintendent should be submitted to establish his/her ability to complete the project. If for any reason, the qualifications are not acceptable, work shall not commence until an acceptable installer is found.
PART 2 PRODUCTS
2.01 DETECTABLE WARNING TILES
A. Detectable warning tiles to be manufactured by a PennDOT Bulletin 15 approved manufacturer.
1. Detectable Warning Surfaces shall be compliant with ADA and PennDOT regulations.
2. Detectable Warning Surfaces shall be of the Polymer Composite type composed of epoxy polymers employing aluminum oxide particles in the truncated domes.
4. Detectable warning surface shall be of the embedded cast-in-place type, Brick Red color.
3. Dimensions: Detectable Warning Surfaces shall be held within the following dimensions and tolerances:
Width: 24” nominal
Face Thickness: 0.1875 +/- 5% max.
Warpage of Edge: 0.5% max.
Length: as required to be provided across the full width of the ramp at the grade break near the street edge
B. Color shall be Brick Red.
ADA DETECTABLE WARNING TILES
32 17 26-2
C. Detectable warning surface shall be guaranteed in writing for a period of five years from date of final completion. The guarantee must include defective work, breakage, deformation, and loosening of tiles.
PART 3 EXECUTION
3.01 INSTALLATION
A. Installation shall be performed according to manufacturer’s recommendations.
B. Tile shall be installed in a manner which does not create a tripping hazard.
3.02 CLEANING AND PROTECTION
A. Protect tiles against damage during construction period to comply with manufacturer’s specification.
END OF SECTION
PART 1 GENERAL
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