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Hydraulics and Hydrology Research at TRB

The mission of the Transportation Research Board is to provide leadership in transportation innovation and progress through research and information exchange, conducted within a setting that is objective, interdisciplinary, and multimodal. This page highlights recently released TRB reports, meeting announcements, requests for proposals, and other announcements related to hydraulics and hydrology. In addition, it includes links to selected hydraulics and hydrology research-related activities taking place at the federal and state levels, and within the academic and international transportation communities. Finally, this page also highlights and provides links to TRB programs and activities, which are the source of most of TRB’s hydraulics and hydrology-related research products.

What's New

TRB Hydraulics and Hydrology-Related Programs and Activities

2013 TRB 92nd Annual Meeting and Transportation Research Record Call for Papers2013 TRB 92nd Annual Meeting and Transportation Research Record Call for Papers
May 18, 2012
TRB standing committees have issued  calls for papers for the TRB 92nd Annual Meeting, January 13-17, 2013, in Washington, D.C, and the Transportation Research Record: Journal of the Transportation Research Board (TRR). While papers addressing any relevant aspect of transportation research will be considered, some committees are soliciting papers in specific subject areas to help potential...
Hydraulic Efficiency of Grate and Curb-Opening Inlets Under Clogging Effect
April 23, 2012
The Colorado Department of Transportation has released a report that investigates the hydraulic efficiencies of bar inlets, vane inlets, and curb-opening inlets for street and roadway drainage.
Hydraulic Design of Highway Culverts, Third EditionHydraulic Design of Highway Culverts, Third Edition
April 23, 2012
The U.S. Federal Highway Administration has released a report that provides information for the planning and hydraulic design of culverts. The publication updates Hydraulic Design Series Number 5 and adds new information on software solutions, aquatic organism passage, culvert assessment, and culvert repair and rehabilitation.
Hearing on the Reliability of the Inland Water System and Its Impact on Economic Competitiveness
April 23, 2012
On April 18, 2012, the U.S. House of Representatives’ Committee on Transportation and Infrastructure Subcommittee on Water Resources and Environment held a hearing to examine the efforts and challenges made to preserve the reliability of the inland water system.  A briefing memo, witness testimonies, and a video of the hearing are available on the website.
A National Authority on RoundaboutsA National Authority on Roundabouts
April 17, 2012
Roundabouts have seen unprecedented growth across the United States, from just a handful a decade ago to more than 2,000 and counting. National guidance had to keep pace with the needs of states and communities planning and implementing roundabouts, and NCHRP took a lead role.
Better, Safer Bridges For When the Earth ShakesBetter, Safer Bridges For When the Earth Shakes
April 9, 2012
In regions across the nation, bridge engineers know that the next major seismic event is coming—maybe tomorrow, maybe centuries from now. DOTs have the critical charge of designing for earthquakes and protecting the lives of travelers.
Highway Design 2011Highway Design 2011
February 27, 2012
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2262 contains 23 papers that explore spacing between freeway ramps, three-dimensional alignment, sight distance, design consistency for two-lane highways, passing process on two-lane rural highways, reduced-conflict intersections, operational interactions between freeway managed lanes and parallel, general p...
Development of a Guideline for Estimating Tsunami Forces on Bridge Superstructures
November 9, 2011
The Oregon Department of Transportation has released a report that describes the development of a guideline for estimating tsunami forces on bridge superstructures along the Oregon Coast.
Evaluation of Bridge-Scour Research: Abutment and Contraction Scour Processes and PredictionEvaluation of Bridge-Scour Research: Abutment and Contraction Scour Processes and Prediction
October 27, 2011
TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 181: Evaluation of Bridge-Scour Research: Abutment and Contraction Scour Processes and Prediction examines bridge-abutment scour and the effectiveness of the leading methods used for estimating design scour depth.
Global Change and Extreme Hydrology: Testing Conventional WisdomGlobal Change and Extreme Hydrology: Testing Conventional Wisdom
September 6, 2011
The Water Science and Technology Board, part of the National Academies’ Division on Earth and Life Studies (DELS), has released a report based on the proceedings of a workshop that examines whether floods and droughts are becoming more prominent in the United States, how they are changing at the regional scale, and what is known about global climate’s influence on these changes. This report pre...

National Cooperative Highway Research Program (NCHRP)
NCHRP conducts research in problem areas that affect highway planning, design, construction, operation, and maintenance nationwide.
Synthesis of Information Related to Highway Problems
TRB's Synthesis of Information Related to Highway Problems searches out and synthesizes useful knowledge from all available sources and prepares concise, documented reports on specific topics. Reports from this endeavor constitute an National Cooperative Highway Research Program (NCHRP) report series, Synthesis of Highway Practice.
Cooperative Research Programs
TRB's Cooperative Research Programs Division manages several cooperative research programs that frequently produces reports that have relevence to issues outside of the program's core focus areas.
Technical Activities Standing Committees
TRB's Technical Activities Division provides a forum for transportation professionals in all modes and functions to identify research needs and to share information on research and issues of interest. The Division's staff of specialists in each mode and discipline work with a network of volunteers to carry out activities on behalf of TRB sponsors and the transportation community, including the TRB Annual Meeting, conferences and workshops, publications, visits to each state, and responses to inquiries. This network includes members and friends of over 200 standing committees, supplemented by designated TRB representatives in each state, over 150 universities, and 35 transit agencies.
Research in Progress in this Subject Area
TRB's Research in Progress (RiP) Database now contains more than 11,900 current or recently completed transportation research projects. Most of the RiP records are projects funded by federal and state departments of transportation. University transportation research is also included. The RiP Database also serves as a clearinghouse of University Transportation Centers ongoing research.
Research Needs in this Subject Area
An important function of TRB is to stimulate research that addresses concerns, issues, or problems facing the transportation community. In support of this function, TRB Technical Activities standing committees identify, develop, and disseminate research need statements (RNS) for use by practitioners, researchers, and others.
Research Completed in this Subject Area
TRB's TRID is integrated database that combines the records from TRB's Transportation Research Information Services (TRIS) Database and the OECD's Joint Transport Research Centre’s International Transport Research Documentation (ITRD) Database. TRID provides access to over 900,000 records of transportation research worldwide.

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