Evaluation of Bridge Deck Sealers
The Colorado Department of Transportation has released a report that focuses on the relative performance of bridge deck sealers, which are commonly used on highway bridge decks. Read the Report
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Category: Bridge Design/Const.
Kentucky Transportation Cabinet Fully Re-opens Bridge after Emergency Repairs One Month Ahead of Schedule
AASHTO Journal, 11 July 2014 The Kentucky Transportation Cabinet last week announced it had re-opened the Interstate 75 bridge over Lynn Camp Creek at the Laurel-Whitley county line, which had been closed for emergency repairs, on June 28, more than a month ahead of schedule and in time for the July 4th holiday weekend. “This is a great example…
Polyurethane Foam Infill for Fiber-Reinforced Polymer (FRP) Bridge Deck Panels
The Missouri Department of Transportation has released a report that evaluates using fiber-reinforced, polyurethane (FRP) foams instead of honeycomb construction as the means to manufacture FRP bridge deck panels. Read the Report
Super-Weathering Steel for Infrastructure Applications
TRB’s National Cooperative Highway Research Program (NCHRP) Innovations Deserving Exploratory Analysis (IDEA) Final Report for NCHRP-IDEA 160: Super-Weathering Steel for Infrastructure Applications explores the development of new, low-cost steels with better weathering characteristics than those of current weathering steels. Project: Project Information Project Number: 20-30/IDEA 160 Read the Report
Oklahoma DOT Reopens Critical Community Bridge after Emergency Closure
AASHTO Journal, 27 June 2014 Residents in the Oklahoma communities of Purcell and Lexington are once again able to easily access surrounding communities now that the Oklahoma Department of Transportation recently reopened a bridge that had been closed for emergency repairs. The James C. Nance Bridge (or the US-77/SH-39 bridge), which spans the South Canadian River and connects the…
Evaluation of Pile Load Tests for Use in Missouri LRFD Guidelines
The Missouri Department of Transportation has released a report for developing pile resistance factors for load and resistance factor design (LRFD) of bridges based on pile load tests. Read the Report
Diffusion vs. Concentration of Chloride Ions in Concrete
The Florida Department of Transportation has released a report that considers the long-term durability of reinforced concrete structures with external chloride concentrations different than those at the permanently immersed, tidal, and splash zones of partially-immersed bridges. Read the Report
Simulation of Prepackaged Grout Bleed Under Field Conditions
The Florida Department of Transportation has released a report that summarizes research on reproducing and determining the cause of soft grout, which can be found in post-tensioned ducts in bridges. Read the Report
Underwater Acoustic Noise Generation and Propagation Resulting from Pile Driving for Oregon Bridge Construction
The Oregon Department of Transportation has released a report that addresses hydro-acoustic impacts of pile driving on bridges so that highway projects remain in compliance with established noise level criteria. Read the Report
Bridge System Safety and Redundancy
TRB’s National Cooperative Highway Research Program (NCHRP) Report 776: Bridge System Safety and Redundancy provides proposed revisions to the design philosophy section of the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications. The following appendices are available for download: A1: Specifications A2: Commentary A3: Implementation Example for I-Girder System…
Washington State DOT, Partners Announce SR99 Tunnel Machine Repair Plan
AASHTO Journal, 20 June 2014 Washington State Department of Transportation joined Seattle Tunnel Partners this week to announce specifics in the plan to repair Bertha, the world’s largest tunneling machine tasked with digging the State Route 99 Tunnel under Seattle. The machine, which is creating the tunnel as part of the Alaskan Way Viaduct Replacement Program, was placed in the…
Four South Carolina Bridges to be Replaced, First to Utilize ACT 98 Funding
AASHTO Journal, 20 June 2014 South Carolina Department of Transportation officials announced Thursday four bridges that will be replaced, representing the first projects to receive revenue from ACT 98, a law passed last year that provides additional funding for bridge, resurfacing, and mainline interstate projects. Signed into law by Governor Nikki Haley one year ago, ACT 98 provides SCDOT…
Corrosion Characteristics of Unprotected Post-Tensioning Strands Under Stress
The Florida Department of Transportation has released a report that explains the effect of bridges’ stress condition and environmental exposure on corrosion of post-tensioned strands during ungrouted periods. Read the Report
State of the Practice and Art for Structural Health Monitoring of Bridge Substructures
The U.S. Federal Highway Administration has released a report that documents possible uses of embedded gauges and low-cost data collection systems that can monitor bridge foundations during and after construction. Read the Report
Field Demonstration of New Bridge Approach Slab Designs and Performance
The Louisiana Department of Transportation and Development has released a report that explains its efforts to minimize bridge end bump problems associated with differential settlement. Read the Report
Delaware DOT Working to Reopen I-495 Bridge Closed Due to Structural Concerns
AASHTO Journal, 6 June 2014 Officials at the Delaware Department of Transportation are working this week to get a heavily traveled bridge on busy I-495 back up and running after an emergency closure this week. On Monday, DelDOT officials found during an inspection that four support piers had shifted on Bridge I-813 over the Christina River on I-495. Engineers found…
New York State DOT Awards Largest Single Contract Ever for Bridge Replacement Project
AASHTO Journal, 6 June 2014 New York Governor Andrew Cuomo this week joined New York State Department of Transportation Commissioner Joan McDonald to announce that the state has chosen a design-build team to tackle its largest single contract ever—a $555 million bridge replacement in the New York City area. The Kosciuszko Bridge, which carries the Brooklyn-Queens Expressway over Newtown…
Improved Cross Frame Details for Steel Bridges
The Center for Transportation Research and the University of Texas at Austin has released a report that investigates the behavior of cross frames on bridges from both a strength and stiffness perspective. Read the Report
Procedures for the Installation and Quality Control of Anchored CFRP Sheets for Shear Strengthening of Concrete Bridge Girders
The Center for Transportation Research and the University of Texas at Austin has released a report that provides guidance and training materials for shear strengthening of concrete bridge girders using externally bonded and anchored carbon fiber reinforced polymer (CFRP) systems. Read the Report
LOI: Post-Extreme Event Assessment of Infrastructure Damage to Bridges
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis Program has issued a request for letters of interest to synthesize the significant information on the differences between damage caused by different extreme events. Information on consultants letters of interest, qualifications, and the submission process are available online at http://www.trb.org/SynthesisPrograms/NewTopicsNCHRP.aspx. Letters of interest are due by August 15, 2014. Read the…
LOI: Extending Bridge Service Life through Field Welded Retrofits
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis Program has issued a request for letters of interest to synthesize field welding solutions and techniques that have been used successfully on existing bridges. Information on consultants letters of interest, qualifications, and the submission process are available online at http://www.trb.org/SynthesisPrograms/NewTopicsNCHRP.aspx Letters of interest are due by August 15, 2014. Read Additional…
FDOT Blames Federal Government for Matthews Bridge Collision, says Court Filing
Tom Warne Report, 27 May 2014 Florida Times-Union – May 19, 2014 The federal government is responsible for several errors which resulted in a towed Navy cargo ship striking the Matthews Bridge last September, and should pay for the $4.1 million repair, Florida transportation officials claim in a filing in naval court last month. The state reported that the…
Louisiana DOTD Reopens Bridge Damaged by Barge Strike Well Ahead of Schedule
AASHTO Journal, 23 May 2014 Last Saturday, May 17, the Louisiana Department of Transportation and Development reopened a vital bridge for Iberville Parish residents a month and a half ahead of schedule, allowing citizens to get back to their driving routines sooner than expected. The La. 77 bridge over the Intracoastal Canal closed to traffic at the end of…
Bridges for Service Life Beyond 100 Years: Innovative Systems, Subsystems, and Components
TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-R19A-RW-1: Bridges for Service Life Beyond 100 Years: Innovative Systems, Subsystems, and Components develops approaches and procedures to enhance service life design for existing and new bridges. Read the Report
Assessment of Kentucky’s Historic Truss Bridges
The Kentucky Transportation Center has released a report that considers ways to improve decisions about the replacement or rehabilitation of historic truss bridges. Read the Report
Design and Construction of Precast Piles with Stainless Reinforcing Steel
The Florida Department of Transportation has released a report that scrutinizes the corrosion and structural performance of three candidate high strength stainless steel materials for prestressed concrete piles. Read the Report
Defining the Upper Viscosity Limit for Mineral Slurries Used in Drilled Shaft Construction
The Florida Department of Transportation has released a report that addresses the rationale for defining the uppermost limit of mineral drill slurry in drilled shaft construction of bridges. Read the Report
A Novel Methodology for Quantifying the Performance of Constructed Bridges in Cold Regions
The Upper Great Plains Transportation Institute at the North Dakota State University has released a report that presents a research program examining the performance of constructed bridges in a cold region and the behavior of concrete members strengthened with carbon fiber reinforced polymer composite sheets. Read the Report
A Management Plan for Historic Bridges in Virginia: Update/Scoping Phase
The Virginia Department of Transportation has released a report that updates its management plan for historic bridges by collecting information on the status of Virginia’s 54 historic bridges. Read the Report
Comparative Testing of Radiographic Testing, Ultrasonic Testing and Phase Array Advance Ultrasonic Testing Non-Destructive Testing Techniques in Accordance with the AWS D1.5 Bridge Welding Code
The Florida Department of Transportation has released a report that explores the Phased Array Ultrasonic Testing (PAUT) to help determine whether the testing process might in future be adopted under the American Welding Society (AWS) D1.5 code as a suitable substitute for the currently required radiographic testing of steel bridge welds. Read the Report
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