Download or read book Road and Bridge Deck Drainage Systems written by Jiri Marsalek and published by . This book was released on 1983 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Road and Bridge Deck Drainage Systems written by J. Marsalek and published by . This book was released on 1982 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Bridge Deck Drainage written by J. Marsalek and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Drainage Systems written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1979 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design principles and procedures and maintenance practices for bridge drainage systems are evaluated in this report, which also includes recommendations for improvements on current practice. Bridges should have adequate cross-slope and grade to allow the water to run quickly into drains. Where grades permit, some states carry all the water to catch basins at the ends. An inlet box may be used to collect the runoff. Some states have detailed procedures for determining drain spacing. Debris can be controlled by keeping it out of inlet boxes, accepting and storing it so it cannot go through the system, or transporting it through. Maintenance at regular intervals is the key to the success of a drainage system. Disposal of run off water can be a simple straight drop onto the land or water beneath the bridge or a pipe system to carry the water to the local sewer system. Current practices indicate that deck cross-slope and grade should be less than 2% and 0.5% respectively; that bridge drains may be holes through the deck, fabricated inlet boxes, or catch basins at the ends of the bridge; that inlet areas should be as large as possible; that pipes should have a minimum diameter of 6 in., a miminum radius of 18 in., and a minimum slope of 2%; that cleanout plugs and elbows should be easily accessible; that there should be improved communication between designers and maintenance personnel; and most importantly, that bridge drainage systems should be regularly and carefully inspected and serviced.
Download or read book Bridge Deck Drainage Evaluation of KDOT s Current Design Guidance written by Alexander Michalek and published by . This book was released on 2022 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proper drainage of bridge decks is essential for vehicle safety and bridge sustainability. The evaluation of Kansas Department of Transportation (KDOT) design guidelines could reduce the likelihood of future deck drainage problems. Therefore, this research investigated current bridge deck drainage design guidelines and related literature and surveyed 22 Departments of Transportation (DOTs) to identify deck drainage issues, solutions, designs, and guidance. This study utilized a scaled physical model and varying downspout shapes and sizes to investigate the hydraulic performance of current KDOT deck drainage design and evaluate grate efficiency and lateral spread. Experimental variables included deck cross slope, longitudinal slope, and approach discharge. This study also compared a curved vane grate to the current KDOT bar grate to determine differences in drainage efficiency. An erosion rate test was performed between the two grate types to determine if changing from a rectangular vane to a curved vane could increase cleanout potential, thereby alleviating problems related to inlet clogging. Experimental results indicated increasing the downspout size from 8 inches to 10 inches or changing the downspout shape from circular to square could increase drainage efficiency with no negative impacts to performance. The curved vane grate showed similar hydraulic performance (i.e., efficiency) to the KDOT rectangular vane grate, and erosion results indicated that the curved vane grate performed similarly to the rectangular grate for cleanout of accumulated debris within the grate. Although experimental results indicated similar performance of rectangular and curved vane grates, DOT survey results showed superior in-field performance of curved-vane grates.
Download or read book Bridge Deck Drainage Guidelines written by and published by . This book was released on 1986 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge-deck design, at present, often includes costly bridge-deck drainage provisions. Many bridge engineers have questioned the need for bridge-deck drainage appurtenances, at least to the extent presently included in typical bridge design. This document presents criteria to determine if bridge drainage scuppers and drains are required. A design nomograph allows a rapid decision to be made. A key variable, design rain intensity, is analyzed: the rational method is reviewed and new methods for setting design rain intensity are presented that consider hydroplaning and driver vision. Regardless of the need for scuppers, bridge-end drainage is necessary, and methods are given. If scuppers are needed, this document provides sound drainage design practice for bridge drainage.
Download or read book Experimental Study on Hydraulic Performance of Rectangular Bridge Deck Drains written by Heath Thompson and published by . This book was released on 2012 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydraulic Performance Small Scale Bridge Deck Drains written by Qin Qian and published by . This book was released on 2012 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficient removal of stormwater runoff from bridge deck surfaces is an important safety issue. This study investigates hydraulic performance characteristics of a new type of rectangular bridge deck drain. A physical modeling study was conducted to evaluate the hydraulic performance of the innovative rectangular bridge deck drain as a function of the approach discharge, different drain configurations, and bridge characteristics. Experiments included different numbers of open drains in series for variable approach discharge cross slope and longitudinal slope. Measurements included gutter flow depth (Y) and ponding width (T) at different stations along the deck, and the capture discharge and bypass discharge. A model equation is presented for predicting the capture discharge as a function of drain size (L+W), the number of open drains (N), Manning's coefficient (n), depth of approached gutter flow (Y), longitudinal slope (S0), and cross slope (Sx). For experiments considering one through five drains in series (1-5 drains), the rating curve for each individual drain is the same when the drain size is 4 by 8 inches; however, the rating curve decreases slightly with successive drains when the drain size is 6 by 8 inches.
Download or read book Assessing the Impacts of Bridge Deck Runoff Contaminants in Receiving Waters written by Thomas V. Dupuis and published by Transportation Research Board. This book was released on 2002 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Download or read book Design of Bridge Deck Drainage written by G. Kenneth Young and published by . This book was released on 1993 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Road and Bridge Deck Drainage Systems Part II Laboratory Investigations written by Ontario. Ministry of Transportation and Communications. Research and Development Branch and published by Downsview, Ont. : Research and Development Branch, Ontario Ministry of Transportation and Communications. This book was released on 1986 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Drainage Systems and Discharge to Waterways written by Jeremy Nielsen and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intent of this project was to contact other agencies to identify their typical design practices and how they address bridge deck drainage. If available, the project sought to learn standard best practices that could be directly applied to Minnesota infrastructure plans to standardize and improve drainage detailing and design practices. In reviewing the online survey and follow-up interview results with the TAP, no concise, ready to implement solution was found and many of the agencies are addressing similar concerns and lack fully developed standards or guidance documents. Although no single specific solution was identified, several key lessons were identified in the interviews which should be incorporated into further investigation and development of standards.
Download or read book The effects of various piping configurations on the capacity of a bridge deck drain written by Steve Lane Smith and published by . This book was released on 1995 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydraulic characteristics of flush depressed curb inlets and bridge deck drains written by Mark Alan Hammons and published by . This book was released on 1995 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Deck Drains written by I. R. Aarset and published by . This book was released on 1981 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Deck Drain Cleanout Device written by Frank Porter and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Deck Joint Performance written by Ronald L. Purvis and published by Transportation Research Board National Research. This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 319: Bridge Deck Joint Performance presents the state of the practice on commonly used expansion joint systems in bridges by summarizing performance data for each system type and by providing examples of selection criteria and design guidelines.
