The Montana Department of Transportation has released a report that evaluates a new bridge built with Geosynthetic Reinforced Soil (GRS) Integrated Bridge System (IBS) technology—which is alternating layers of granular fill material and fabric sheets of geotextile for a composite reinforcement that provides support for bridge slabs. Read the Report
The Washington State Department of Transportation has released a report that explains the development, testing, and verification of the passive radio frequency identification (RFID) technology for determining maximum scour depths near proposed flow deflection structures on the Skagit River. Read the Report
TRB’s National Cooperative Highway Research Program (NCHRP) has issued a request for proposals to develop proposed American Association of State Highway and Transportation Officials (AASHTO) guidelines for the evaluation of new techniques for the design and construction of bridge columns with energy dissipation mechanisms in order to help minimize bridge damage and replacement after a seismic event. Proposals are…
The New Zealand Transportation Agency has released a report that proposes a new vehicle loading standard for the design and evaluation of road bridges and other highway infrastructure in New Zealand. Read the Report
TRB’s National Cooperative Highway Research Program (NCHRP) Innovations Deserving Exploratory Analysis (IDEA) Final Report for NCHRP-IDEA Project 147: Shape Memory Alloy Enhanced SMART Expansion Joints develops a new shape memory alloy enhanced modular expansion joint, or SMART joint, that can accommodate the heightened demands imposed during extreme events like earthquakes, while maintaining industry preferred thermal load behavior with minimal…
TRB’s National Cooperative Highway Research Program has issued a request for proposals to develop specific guidance for design, construction, and maintenance personnel on the function of filters and their installation. Proposals are due January 7, 2014. Read the RFP
Austroads has released a report that provides guidelines for consistency in the design of traffic barriers for bridges. This report is available for no fee after logging onto the site. Read the Report
The Mountain-Plains Consortium, part of the Upper Great Plains Transportation Institute at North Dakota State University, Fargo, has released a report that develops design guidelines for integral abutment bridges. Read the Report
TRB’s National Cooperative Highway Research Program (NCHRP) Report 761: Reference Guide for Applying Risk and Reliability-Based Approaches for Bridge Scour Prediction presents a reference guide designed to help identify and evaluate the uncertainties associated with bridge scour prediction including hydrologic, hydraulic, and model/equation uncertainty. For complex foundation systems and channel conditions, the report includes a step-by-step procedure designed to…
The Kentucky Transportation Center has released a report that explores the inspectability and accelerated weathering performance of optically active pigment coating in a laboratory test program. Read the Report
The Virginia Department of Transportation has released a report that discusses its bridge coating practices in order to identify areas where process improvements and cost savings could be realized. Read the Report
The Kentucky Transportation Center has released a report that details the pre-construction monitoring, planning and design, and construction measures of Kentucky’s US 150 bridge. Read the Report
The Kentucky Transportation Center has released a report that documents repair of I-65 bridges, including repairs of precast, prestressed concrete girder spans and the reinforced concrete bearing pads. Read the Report
The Institute for Transportation at Iowa State University has released a report that evaluates shrinkage components in the high-performance concrete mixes used for bridge decks and overlays. Read the Report
The Mountain-Plains Consortium, part of the Upper Great Plains Transportation Institute at North Dakota State University, Fargo, has released a report that discusses general dynamic simulation methodology used to study the combined realistic service and extreme loads on short- and medium-span bridges. Read the Report
The New Zealand Transport Agency has released a report that provides guidance on the design of steel-concrete composite bridges—bridges that consist of steel girders and reinforced concrete slabs on top. Read the Report
The Illinois Center for Transportation at the University of Illinois has released a report that explores test results of ultimate pier and contraction scour methods for cohesive soils on 30 bridge sites in Illinois. Read the Report
The Kentucky Transportation Center at the University of Kentucky has released a report that summarizes nationwide survey results of the status of mechanically stabilized earth wall abutments in Kentucky. Read the Report
The Center for Transportation Studies at the University of Minnesota has released a report that details its second approach to dielectric relaxation spectroscopy for low-cost sensing systems intended to monitor ice, water, and deicing solutions on road bridge deck surfaces. Read the Report
The Center for Transportation Studies at the University of Minnesota has released a report evaluates physical attributes of the prototypes for bridge deck installations, as developed for earlier phases of the research. Read the Report
The Institute for Transportation at Iowa State University has released a report that demonstrates the capabilities for load testing and bridge rating in Iowa, and the economic benefits of performing such testing. Read the Report
The Washington State Department of Transportation has released a report that explores on-board sound intensity measurements for various concrete pavement textures such as transverse and longitudinal tining, carpet drag, conventional diamond grinding, and the Next Generation Concrete Surface. Read the Report
The Kentucky Transportation Center at the University of Kentucky has released a report that explains how mobile light detection and ranging (LIDAR) was used to obtain bridge clearance heights, which can vary and can be difficult to measure due to high traffic volume. Read the Report
The U.S. Federal Highway Administration has released a tech brief that presents research results on the strength properties of standard open aggregates tested in a large-scale direct shear device. Read the Technical Brief
The U.S. Federal Highway Administration has released a report that investigates the composite behavior of a geosynthetic reinforced soil (GRS) mass through a series of large-size GRS composite tests. Read the Report
The Region 2 University Transportation Research Center has released a report that evaluates the deterioration of reinforced concrete bridge components so as to estimate the reserved strength of deteriorated bridges and design cost-effective methods for retrofit. Read the Report
The Illinois Center for Transportation at the University of Illinois has released a report that discusses the application of expansive cements and shrinkage-reducing admixtures in reducing cracking due to drying shrinkage. Read the Report
The Center for Transportation Research at the University of Texas at Austin has released a report that evaluates diagonal cracking in reinforced concrete inverted-T straddle bent caps by examining variables such as quantity of web reinforcement and number of point loads. Read the Report
The Illinois Center for Transportation at the University of Illinois has released a report that summarizes its process for validating and calibrating the quasi-isolated earthquake warning systems on highway bridges. Read the Report
The Virginia Department of Transportation has released a report that evaluates the construction, condition, and cost of Rosphalt overlays (a proprietary asphalt additive) placed on bridges in Virginia. Read the Report
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