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Respondent Detail
Alaska Use of tack coat prior to waterproofing membrane installation is per most manufacturers' recommendations.
California Install bleeder pipes on low side of deck spaced at 30-ft intervals. See specification.
Connecticut Primer must meet requirements of ASTM D41 in accordance with the specification.
Idaho Allow peel and stick
Missouri The tack coat is used in conjunction with the asphalt wearing surface per MoDOT Standard Specifications.
New Hampshire See the standard specification, 538.3.2.3.3 for discussion of protection board.
New York See installation procedures covered in each manufacturer's materials details (approved list).
Pennsylvania Primers are part of the manufacturer's requirements
South Dakota See response to Question 7.
Tennessee Some products on the QPL require tack coat prior to the installation of the membrane.
Utah Pre-formed roll-on membranes typically have a tack coat that holds the membrane to the deck for ease of installation and
paving.
Virginia The membrane is installed in accordance with VDOT specifications and manufacturer's recommendations. Primers, adhe-
sives, and tack coats are sometimes used if recommended by the manufacturer. Liquid membranes are typically epoxy and
broadcast aggregate.
Washington If a manufacturer recommends a primer, the contractor is required to use it.
Wyoming Based on manufacturer's recommendations with their supplied membrane.
Alberta Wick drains and membrane reinforcing fabric. The requirements for these products are described in the applicable specifica-
tions and on the standard drawings.
Manitoba 10-mm protection board with 25-mm overlaps (longitudinally and transversely) installed between the waterproofing mem-
brane and asphalt overlay. Protection board to be half sheet staggered (minimum 150 mm) at longitudinal joints in the wear-
ing surface.
New Brunswick Follow applicable manufacturer's recommendations
Newfoundland Primers as per the membrane manufacture's requirements for SBS modified thermo fusible membrane systems. Protection
and Labrador board is used with some systems.
Nova Scotia http://gov.ns.ca/tran/publications/standard.pdf Division 5 Section 9
Ontario We use tack coat and protection board as part of our standard treatment. We may specify the use of a reinforcing membrane
over deck cracks, where these are a significant issue, to help maintain continuity of the membrane.
Prince Edward Primers can be used for peel and stick and hot applied rubberized compound applications. We've used protection boards
Island with the hot applied method and we have allowed for deck drainage between layers of the membrane and asphaltic concrete
overlay.
Saskatchewan Tack coat and protection board used for hot applied rubber membranes is our normal practice.
7. CONSTRUCTION AND INSPECTION
15. Does your agency have specifications for the surface preparation of new concrete bridge decks prior to the application of the water-
proofing membrane system?
Yes: 19 agencies
No: 12 agencies
16. Does your agency have specifications for the surface preparation of existing concrete bridge decks prior to the application of the
waterproofing membrane system?
Yes: 26 agencies
No: 6 agencies
17. Does your agency have special inspection practices during installation of waterproofing membrane systems?
Yes: 13 agencies
No: 19 agencies
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If any answer to Questions 15, 16, or 17 is Yes, please provide the specifications or practices.
Respondent Details
Alaska 2004 Standard Specification for Highway Construction, Section 508 http://www.dot.state.ak.us/stwddes/dcsspecs/resources.
shtml#
California Deck Seal http://www.dot.ca.gov/hq/esc/oe/specifications/SSPs/2006-SSPs/Sec_10/49-59/54-120_E_B11-16-07.doc
Slurry Leveling Course http://www.dot.ca.gov/hq/esc/oe/specifications/SSPs/2006-SSPs/Sec_10/49-59/54-150_E_B05-01-
06.doc file_413279_148681034_2_e_b05-01-06.doc
Connecticut See requirements specified under "Construction Methods" for Membrane Waterproofing (woven glass fabric) in Form 816.
Use following web address to access Form 816: My Documentssurveyshttp://www.ct.gov/dot/lib/dot/documents/dpublica-
tions/816/012004/2004_816_original.pdf
Idaho Basically must be clean. When engineer requires it: ASTM D3633
Illinois See Section 581 of the Standard Specifications for Roads and Bridges
Kansas We just use our general concrete patching specification and the contractor must submit and follow the manufacturer's speci-
fications and recommendations for the material they will be using.
Michigan http://mdotwas1.mdot.state.mi.us/public/specbook/files/710%20Wtrpr,%20Protective%20Covers.pdf See subsection
710.03.C
Michigan Spec Book http://mdotwas1.mdot.state.mi.us/public/specbook/ p. 461
Missouri http://www.modot.mo.gov/business/consultant_resources/documents/711-BSP-03_Waterproofing_Membrane.doc
Nebraska We require manufacturer's representative and follow their recommendations
New Hampshire See specification.
New Jersey As per recommendation of manufacturer's representative.
New York Our Engineering Instructions, issued with the specifications for each system type, offer guidance and the materials details of
each approved system also addresses this.
Oklahoma Refer to Subsection 505.04C.(1) of our standard specifications http://www.okladot.state.ok.us/c_manuals/
specbook/2009specbook.pdf
Oregon http://www.oregon.gov/ODOT/HWY/SPECS/2008_special_provisions.shtml
Part_00500
Pennsylvania Pub 408 Section 680 Link = ftp://ftp.dot.state.pa.us/public/bureaus/design/pub408/pub%20408-2011.pdf
South Dakota See response to Question 7.
Utah Surface preparations are the same for new decks as for existing and are covered in the our standard specification--07105
Waterproofing Membrane
Virginia Section 416 of the Road and Bridge Specification covers these issues. The surface is typically cleaned and textured by grit
blast. VDOT currently inspects most work.
Washington Contractors are encouraged to use other methods to remove HMA. If rotary milling is used, 1/4-in. tooth spacing is required.
Questions 15 & 16: http://www.wsdot.wa.gov/publications/fulltext/projectdev/gspspdf/5-04.3.OPT3.BSP.GB5.PDF http://
www.wsdot.wa.gov/publications/fulltext/projectdev/gspspdf/6-08.3(2).OPT1.GB6.PDF http://www.wsdot.wa.gov/publica-
tions/fulltext/projectdev/gspspdf/6-08.3(4).OPT1.GB6.PDF 16. Measuring asphalt depth:http://www.wsdot.wa.gov/publica-
tions/fulltext/projectdev/gspspdf/5-04.3.OPT2.BSP.FB5.PDF 17. http://www.wsdot.wa.gov/publications/fulltext/projectdev/
gspspdf/6-08.3(3).OPT1.GB6.PDF
Wyoming See Question No. 7
Alberta Questions 15 & 16: Section 16 of the Specifications for Bridge Construction.
Question 17: Monitor or inspect surface preparation, temperature of membrane, thickness of membrane, installation of pro-
tection board, conformance to standard drawings and specifications.
Manitoba Concrete surfaces to be shot blasted or sandblasted to expose sound, laitance free concrete and remove any materials that
might adversely affect adhesion of the waterproofing membrane.
New Brunswick Refer to Section 302.411.6 in Specifications Book
Nova Scotia http://gov.ns.ca/tran/publications/standard.pdf Division 5 Section 13
Ontario See Specification OPS 914
Quebec Standard specification for blast cleaning and waterproofing. Specification 6752 file_413279_151817376_1_terproofing.doc
