United States Department of Transportation
i
Synthesis: Bridge Deck Drains
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2021-10-01
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[PDF-9.50 MB]
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Edition:September 2020 – August 2021
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Abstract:Bridge deck drains are an integral component of bridges helping in the removal of runoff. The debris carried by the runoff clog drains frequently. The objective of this project is to synthesize and evaluate existing bridge deck drains and provide recommendations for the design, construction, and maintenance of bridge deck drains. The research findings were obtained through an extensive literature review, fact-finding surveys, and structured follow-up interviews. A thorough literature review was conducted to obtain a detailed understanding of bridge deck drains' failures, designs, construction, and maintenance in Texas and other states. The findings of the literature review were used to develop two surveys. Responses were collected from 17 TxDOT districts and 21 states other than Texas. Based on the survey responses, structured follow-up interviews were conducted with individuals with extensive experience with bridge deck drains. In total, the research team conducted six detailed follow-up interviews. The interview participants were asked to provide detailed information on bridge deck drain designs, construction, and maintenance. To ensure the effective removal of runoff from bridge decks in Texas, the researchers recommended standardizing the design and detailing of bridge deck drains. They also recommended inspecting bridge deck drains at least once before rainy seasons.
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