Structural News

DelDOT updates status of I-495 Bridge

Wilmington, Del. — The job of building eight temporary towers beneath the I-495 southbound bridge deck and preparing them for the jacking operation is continuing. The positions on the top of the towers where the jacks will interact with the deck must be exact and are critical to the success of the project. This requires the bridge engineers to design and the contractor to fabricate and install a jacking system consisting of header beams, special housing boxes to hold the jacks, bracing, and many other custom steel components.

Zurich advises on solar panel fire and structural load risks

Schaumburg, Ill. — As businesses across the world increasingly are turning to green technology for lowering energy costs and reducing their own carbon footprints, Zurich is working to help risk managers understand the fire and unexpected structural load risks associated with photovoltaic (PV) solar panel systems and how they can protect themselves from those risks. Key information related to the risks and challenges and recommended solutions was recently released in a Zurich RiskTopics white paper on photovoltaic systems.

Two Innovation Awards celebrate intelligent structural monitoring project

Princeton Junction, N.J. — The Institution of Civil Engineers (ICE) and Chartered Institution of Highways and Transportation (CIHT) have separately judged and awarded the A38(M) Tame Valley Viaduct management project with a 2014 Innovation Award. Key to management of the viaduct is the MISTRAS monitoring system comprising over 1,100 sensors, which is one of the largest bridge monitoring systems in the United Kingdom.

1908 bridge rehab opens two months ahead of schedule

Iselin, N.J. – On Friday, June 20, Essex County and Millburn Township officials cut a ribbon to celebrate the reopening of the Glen Avenue Bridge in Millburn, N.J. Among those attending the reopening ceremony were Essex County Executive Joseph N. DiVincenzo, Jr., and Hatch Mott MacDonald Project Manager Jerry Kroner. The rehabilitation of the bridge, estimated to last about six months, was completed in just over four.

HNTB selected to design new Kosciuszko Bridge

New York — HNTB Corporation will be the lead designer for the Skanska-Kiewit-ECCO III Joint Venture, the design-build team chosen to complete the replacement eastbound Kosciuszko Bridge. It is the largest design-build project ever awarded by the New York State Department of Transportation. The $555 million, 1.1-mile-long project includes an 1,100-foot main span cable-stayed structure, high-level approach bridges, and low-level connectors with numerous overpasses over local streets.

J.L Patterson & Associates awarded bridge inspection contract

Orange, Calif. — J.L. Patterson & Associates, Inc. (JLP), a civil, trackwork, environmental and structural engineering firm, announced that the North County Transit District awarded the firm a contract worth up to $7 million to provide bridge inspection and management services for the District’s major bridge structures.

Researchers examining which bridge designs and materials are the most eco-friendly

Coral Gables, Fla. — When envisioning a new structure, engineers often have to balance design choices against the environmental impact of materials used. It is estimated that 40 percent to 50 percent of greenhouse gases are produced by the construction industry, according to the California Integrated Waste Management Board. Lessening the impact of construction on the environment is a work in progress.

Repairs to I-495 Bridge continue to advance

Wilmington, Del. — Construction of the 32 new underground support columns needed to repair the I-495 bridge were completed today and work to erect the jacking towers that will be used to lift the bridge deck back into alignment is ongoing.

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