TRB’s National Cooperative Highway Research Program (NCHRP) has issued a request for proposals to develop displacement-based design and construction specifications for implementation of accelerated bridge construction (ABC) column connections in moderate-to-high seismic regions. Proposals are due by December 9, 2014. Project: Project Information Project Number: 12-105 Read the RFP
AASHTO Journal, 10 October 2014 The super crane at the Tappan Zee Bridge. Photo courtesy of the New York State Thruway Authority. One of the world’s largest cranes, a barge-mounted behemoth originally built for bridge work in San Francisco Bay, arrived Oct. 6 alongside New York’s largest infrastructure project – replacement of the Tappan Zee Bridge. Officially named…
AASHTO Journal, 10 October 2014 Photo courtesy of Rhode Island DOT. Rhode Island’s Department of Transportation will host a showcase Oct. 30 in Providence of its innovative bridge construction, which uses products developed through the second Strategic Highway Research Program, or SHRP2. But you need to register for it. DOT representatives, contractors and other practitioners from the New England…
The U.S. Federal Highway Administration has released a report that supplements the existing knowledge base on stay cable vibrations and explains possible recommendations that may be incorporated into design guidelines. Read the Report
AASHTO Journal, 3 October 2014 Jay Duck via Wikimedia Commons The transportation departments for Maine and New Hampshire have struck a tentative pricing agreement with Cianbro Corp., to replace the Sarah Mildred Long Bridge at a cost of $158.5 million. The project to build a new span between Portsmouth, N.H., and Kittery, Maine, over the Piscataqua River is slated…
TRB’s National Cooperative Highway Research Program (NCHRP) has issued a request for proposals to develop guidelines to evaluate complete joint penetration welds in steel bridges based on updated acceptance criteria. Proposals are due November 18, 2014. Read the RFP
“Constructioneer”, August, 2014 Bridge maintenance and construction materials officials from Region 9 of the New York State Department of Transportation (NYSDOT) are evaluating non-Portland cement based concrete repair technology that was applied in a mid-June demonstration in Maine, New York, a community of 5,400 people in Broome County. Using a repair product based on magnesium aluminum liquid phosphate (MALP)…
AASHTO Journal, 26 September 2014 A rally was held at New Mexico State University Friday, to honor the students, faculty and researchers in the College of Engineering’s bridge inspection program. The program, which is operated in conjunction with the New Mexico Department of Transportation (NMDOT), provides annual routine inspections and evaluations of 400 highway and railroad bridges across the…
Austroads has released a report that demonstrates the development of an assessment framework to allow fast assessment of simply supported bridges by using a simple line model comparison approach. This report is available for no fee after logging on to the site. Read the Report
The University of Illinois Center for Transportation has released a report that describes a dynamic load test program intended to improve the design of driven piling, which includes steel H-piles and closed-ended pipe piles. Read the Report
The Ohio Department of Transportation has released a report that describes a method for the overall condition assessment and load rating of prestressed box beam bridges based on their dynamic response collected through wireless sensor networks. Read the Report
AASHTO Journal, 5 September 2014 A section of the Barton Corner Bridge is rolled into place. Rhode Island DOT officials said the bridge replacement was finished in just 10 days. Photo courtesy RIDOT Facebook. The Rhode Island Department of Transportation last week celebrated the early completion of the Barton Corner Bridge replacement south of Warwick a day ahead of…
AASHTO Journal, 5 September 2014 MoDOT Bridge Inspector Jamie Johnson (left) discusses bridge completion with Columbia Area Engineer Charles Sullivan. A new innovative bridge technology is being used by the Missouri Department of Transportation to replace a 57-year-old bridge in Columbia. The Route B Bridge over Business Loop Interstate 70 carries up to 22,000 vehicles a day between Columbia’s…
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2407 consists of 8 papers that examine surface wave measurements to characterize surface-breaking cracks in concrete bridge decks; a portable seismic property analyzer to assess Colorado’s hanging lake tunnel liner; ultrasonic tomography to detect structural impairment in tunnel linings; and field monitoring of rebar debonding in concrete bridge…
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2406 consists of 10 papers that analyze imposed bridge load stresses for development of a European bridge formula; design of ultrahigh-performance concrete waffle deck for Accelerated Bridge Construction; anchor bolt steel strength in annular stand-off base plate connections; thermal analysis of highway overhead support structures; and signal head…
AASHTO Journal, 29 August 2014 The Federal Highway Administration has made progress toward fully implementing safety provisions included in the 2012 MAP-21 surface transportation bill but the agency has much more to do, according to a new Office of Inspector General report released this week. According to the report, which was requested by House Transportation and Infrastructure Ranking Member…
TRB’s National Cooperative Highway Research Program (NCHRP) Innovations Deserving Exploratory Analysis (IDEA) Final Report for NCHRP-IDEA Project 161:Tools for Determining Yield Stress of In-Service Gusset Plates explores a nondestructive testing device that can estimate the yield stress of bridge steel plates. Project: Project Information Project Number: 20-30/IDEA 161 Read the Report
The Missouri Department of Transportation has released a report that investigates the in-service behavior of hybrid composite beam bridges through quality control/quality assurance measures. Read the Report
The Florida Department of Transportation has released a report that summarizes the research for replacing a high-temperature grout fluidity test that was used to qualify post-tensioning grouts in post-tensioned bridge construction. Read the Report
AASHTO Journal, 15 August 2014 Image courtesy The Ohio River Bridges. The $2.3 billion project building a new Ohio River crossing between Louisville, Kentucky and southern Indiana will continue after the 6th U.S. Circuit Court of Appeals last week upheld the dismissal of a lawsuit that sought to halt construction, alleging the project’s state partners – the Kentucky Transportation…
TRB’s second Strategic Highway Research Program (SHRP 2) S2-R04-RR-1: Innovative Bridge Designs for Rapid Renewal documents the development of standardized approaches to designing and constructing complete bridge systems for rapid renewals. The report also describes a demonstration project on US 6 over the Keg Creek near Council Bluffs, Iowa that was completed in 2011 using the accelerated bridge construction…
AASHTO Journal, 8 August 2014 The well-publicized collapse of an interstate bridge north of Seattle last year was the result of “a series of deficiencies in a system intended to safeguard the passage of oversized loads over Washington State’s roadways” according to the National Transportation Safety Board, which released its final report on the incident last month. A truck…
The New Zealand Transport Agency has released a report that identifies procedures for designing bridges located on sites that are prone to liquefaction and lateral spreading. Read the Report
The Florida Department of Transportation has released a report that validates a barge-impact load prediction model for facilitating the design of bridges that can resist collisions by errant waterway vessels. Read the Report
AASHTO Journal, 25 July 2014 The Michigan Department of Transportation this month highlighted a bridge building innovation in a new YouTube video, which also serves to advocate for transportation investment to foster more innovations. In the video, MDOT showcases a bridge replacement over Plum Creek in Wayne County, the first MDOT bridge containing beams with no steel elements. This…
AASHTO Journal, 25 July 2014 Virginia Governor Terry McAuliffe joined officials from the Virginia Department of Transportation last week announced plans to tackle a problematic point of congestion on one of Northern Virginia’s busiest interstates. McAuliffe and VDOT Secretary Aubrey Layne unveiled a proposal that would make several improvements to congestion-plagued I-66, including the delivery of three regular lanes…
The U.S. Federal Highway Administration (FHWA) has released a report that determines chloride threshold values of post-tensioning strands that are exposed to chloride-contaminated grout on bridges. Read the Report
TRB’s National Cooperative Highway Research Program (NCHRP) Report 778: Bridge Stormwater Runoff Analysis and Treatment Options presents information and an analysis process for identifying cost-effective, pollution-reducing strategies for management of stormwater runoff from highway bridges. Read NCHRP Report 778
Better Roads, 17 July 2014 By James Jaillet, Associate Editor of OverdriveOnline.com The collapsed section of I-5 in Washington over the Skagit River. The bridge has since been repaired. The National Transportation Safety Board blames a “series of deficiencies” on the events that led to a truck with an oversized load striking a sway brace on the bridge last May and…
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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