The Institute for Transportation at Iowa State University has released a report that considers the effect of bridge width on deck cracking and other parameters including bridge skew, girder spacing, and abutment type. Read the Report
The Louisiana Department of Transportation and Development has released a report that explains a flexural resistance designing process using post-tensioning prestressed carbon reinforced polymers laminates adhering to bridge girders. Read the Report
The Institute for Transportation at Iowa State University has released a report that evaluates the grouted coupler connection details utilized on precast concrete elements on one of Iowa’s bridges. Read the Report
The Mountain-Plains Consortium has released a report that attempts to quantify the parameters for common bridge nondestructive evaluation (NDE) methods as a means of implementing risk-based planning. Read the Report
The California Department of Transportation has released a report that compares seismic modeling results of two different software programs conducted on a sample of bridges classified as ordinary standards bridges, which are bridges that have characteristics including being less than 300 feet long and having soil not susceptible to liquefaction or scour. Read the Report
AASHTO Journal, 18 September 2015 Virginia Gov. Terry McAuliffe and Transportation Secretary Aubrey Layne, along with U.S. Deputy Transportation Secretary Victor Mendez, opened a new roadway bridge near Arlington National Cemetery that incorporates alternative travel modes with improved roadway use and features that highlight the local community’s heritage. The $59.5 million project replaced a structurally deficient, weight-limited structure built…
TRB’s National Cooperative Highway Research Program (NCHRP) has issued a request for proposals to provide guidance to help bridge owners and designers define enhanced seismic performance objectives and design bridges to meet those objectives. Proposals are due by November 3, 2015. Project: Project Information Project Number: 12-106 Read the RFP
AASHTO Journal, 11 September 2015 The Minnesota and Wisconsin Departments of Transportation said Sept. 4 that the completion date for the bridge portion of the St. Croix Crossing project near Stillwater, Minn., will be delayed past the autumn of 2016 and into 2017. “This is a very complex engineering project,” said MnDOT Commissioner Charles Zelle. “This is only the…
AASHTO Journal, 11 September 2015 A heavily traveled bridge on northbound Interstate 65 near Lafayette, Ind., which was closed after sinking several inches during some construction work over Wildcat Creek, was reopened to traffic the night of Sept. 6 after being closed since Aug. 7. That was a week or more ahead of the mid-September reopening schedule the Indiana…
The Mountain-Plains Consortium at North Dakota State University has released a report that examines changes in bridges’ mechanical properties for concrete and under fatigue loading and freeze-thaw cycles. Read the Report
The Florida Department of Transportation has released a report that assesses the feasibility of carbon fiber reinforced polymer tendons and to develop guidelines for post-tensioned bridge applications, including segmental bridges and pier caps. Read the Report
AASHTO Journal, 4 September 2015 The Wyoming Department of Transportation faces more than $1 million in damage to an Interstate 90 bridge in Gillette, along with traffic curbs on two routes and lengthy repairs, after a truck hauling an oversized load on a state highway struck it from beneath on Sept. 2. The I-90 bridge over state route 59…
AASHTO Journal, 4 September 2015 Some drivers heading north on Interstate 65 out of Lafayette, Ind., have been dealing with a long detour throughout August that might cost them as much as an extra hour, news reports say. But the Indiana Department of Transportation said its contractor projects that a damaged I-65 bridge should reopen to traffic by mid-September….
AASHTO Journal, 4 September 2015 The Missouri Department of Transportation said the number of bridges on state roads that it lists as “in critical need of attention has risen to 641 this summer from 591 a year ago. While those are still safe to drive over, MoDOT said such “critical condition bridges are the state’s worst, and with continued…
AASHTO Journal, 4 September 2015 The Rhode Island Department of Transportation said an accelerated inspection it conducted in recent months of 230 structurally deficient bridges led to emergency closures in a few areas and immediate repairs at 28 structures. RIDOT launched the special inspections program in May and finished on schedule by mid-August. It resulted in an emergency closure…
The Kentucky Transportation Center at the University of Kentucky has released a report that considers the tools, training, and plans that will be needed for carrying out preventative maintenance work on bridges. Read the Report
AASHTO Journal, 28 August 2015 At the 10th anniversary of Hurricane Katrina, the Mississippi Department of Transportation is recalling how the storm left more than $1 billion in damages to the state’s transportation infrastructure, including destruction of two major bridges crossing bays along the Gulf Coast. The agency has also highlighted the rebuilding efforts it launched to bring the…
AASHTO Journal, 21 August 2015 North Carolina Gov. Pat McCrory announced Aug. 18 that final roadblocks have been cleared away for the state Department of Transportation to proceed with building a new Herbert C. Bonner Bridge on NC 12 over the Oregon Inlet along the Outer Banks. Bonner Bridge “Completing the terms of a settlement agreement reached in June,…
Austroads has released a report that provides information about the design, construction, and maintenance of 122 road tunnels in Europe, Asia, North and Central America, Australia, and New Zealand. This report is available for no fee after logging onto the site. Read the Report
The Maryland State Highway Administration has released a report that addresses possible barriers and concerns related to the implementation of prefabricated bridges and accelerated bridge construction, including an assessment of quality and durability. Read the Report
AASHTO Journal, 7 August 2015 The South Dakota Transportation Commission has scheduled an Aug. 27 hearing to adopt rules that will govern a new $15 million annual grant fund to target local roadway bridge needs, with the grant request handled through the state Department of Transportation. That Bridge Improvement Grant fund was included in a wide-ranging transportation funding law…
The Washington State Department of Transportation has released a report that discusses changes made to its concrete specification for bridge decks in an effort to reduce early-age restraint cracking. Read the Report
The Oregon Department of Transportation has released a report that evaluates the cyclic performance of a reinforced concrete square column and bridge bent that reflect subduction zone earthquake demands. Read the Report
TRB’s National Cooperative Research Program (NCHRP) Innovations Deserving Exploratory Analysis (IDEA) Report 156: Novel Coating Technology for Improving the Corrosion Resistance and Mechanical Properties of Reinforcing Steel in Concrete explores the development of a new coating technology with improved corrosion and mechanical performance as compared to existing commercially available coatings used for reinforcing steels. The coatings may extend…
AASHTO Journal, 24 July 2015 Two major roadway projects in Alaska were cleared to advance their planning this month, after the administration of Gov. Bill Walker lifted an order that had stopped spending on the development work, the Alaska Journal of Commerce reported. Walker had taken office Dec. 1 amid a time of stress for oil-dependent state finances as…
AASHTO Journal, 24 July 2015 When fast-moving storm waters undermined a desert bridge in California and led to its July 19 collapse, the disruption to traffic on Interstate 10 quickly rose in concern both for that state and Arizona and became a rallying point on the U.S. Senate floor for a new highway bill. Within days, the U.S. Department…
Austroads has released a report that identifies differences in Australian and New Zealand road agencies’ bridge deterioration modelling and prediction tools for improving the scheduling of maintenance and replacement works. This report is available for no fee after logging onto the site. Read the Report
AASHTO Journal, 17 July 2015 The Michigan Department of Transportation said it will replace a pedestrian overpass bridge in Detroit that was destroyed last September by an over-height truck strike, with the help of about $2.9 million in Federal Highway Administration emergency funds. The accident, which left the truck driver dead, pulled the bridge down onto the Southfield Freeway…
AASHTO Journal, 17 July 2015 The Federal Highway Administration published a final rule for national tunnel inspection standards, which will be the basis of its first standardized tunnel inspection program. This effort will be modeled after what the FHWA said is its “successful bridge program established nearly a half-century ago to ensure the safety of the nation’s bridges.” U.S….
AASHTO Journal, 10 July 2015 The Ohio Department of Transportation has hired a contractor to quickly replace a major Interstate 70 bridge at Columbus, after it was destroyed July 1 when a tanker truck hauling ethanol overturned underneath that span and set off an intense fire. The U.S. Department of Transportation is providing $1 million in “quick release” funds…
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