Photo Courtesy of J.D. Eckman Crews jacked the deck a quarter inch off its piers prior to realigning the structure. Related Links: DelDOT Making Fast-Track Repairs to Closed I-495 Christina River Bridge ENR Video Interview with DelDOT Chief Engineer Robert McCleary After 11 weeks of fast-track repairs, the Delaware Dept. of Transportation's emergency design and construction team reopened northbound lanes of the I-495 bridge in Wilmington on Aug. 23. The work allowed both sides of the 4,800-ft-long structure to be fully operational in time for the expected crush of Labor Day weekend traffic.The 40-year-old concrete-deck-on-steel-beam bridge, which typically carries about
Photo courtesy of TDOT Tanker collision on I-65 in Tennessee killed the driver of the truck and melted beams on two overpass bridges, causing one to be demolished and severely damaging the other. Related Links: Fast-Track Replacement Planned For Collapsed Skagit River Bridge Caltrans Scrambles To Fix Fire-Damaged Maze Fast Construction is underway on a replacement span over Interstate 65, near Franklin, Tenn., after a severe fire from a tanker-truck collision early on Aug. 15 destroyed a pair of bridges.With about 62,000 vehicles daily on I-65 and 11,000 on the state Route 248 crossing, traffic in that area shut down
Related Links: As Hong Kong-Macau Tunnel Progresses, Denmark Floats a Record Breaker Longest Sunken-Tube Tunnel Planned For Contractors and Their Advisers, A Sinking Feeling Is Good in Busan Chinese engineers had never built an immersed tunnel on the open sea, let alone one that, upon completion, would be the world's longest, at a total length of 6.7 kilometers, and one of the deepest, at almost 45 meters, under China's Pearl River Delta.The idea of directly linking the economic powerhouses of Hong Kong and Macau—shortening the three-hour drive to about a half hour—had floated around for almost 20 years. But it's
Photo by Tony Illia for ENR Flaking antimicrobial coating, which was possibly misapplied, has required project rework and a delay. Related Links: New Perch Being Readied for McCarran's Air Traffic Controllers McCarran Prepped for $2.4B Terminal 3 Grand Opening The nation's second-tallest federal air-traffic control tower, under construction at McCarran International Airport in Las Vegas, faces at least a one-year delay after an antimicrobial coating, which may have been improperly applied, flaked off from ductwork and became airborne. Project participants are staying mum about the problem and its origin, but legal observers speculate that corrective repairs could be expensive and
Related Links: Boomlet Prompts Oil Shipper's Plan To Increase Its Capacity Booming U.S. Energy Market Spurs Pipeline Net Expansion Canexus Corp., says it will start Canada’s first pipeline-connected crude oil rail terminal before the end of August, but the Calgary-based chemical manufacturing company and terminal operator is already considering the sale of the Bruderheim, Alberta, facility.Design issues, construction cost escalations and schedule delays related to expansion efforts at Bruderheim have depressed Canexus’ balance sheet and share price—even as demand for more Alberta crude shipping capacity is climbing.In 2012 Canexus pegged Bruderheim's construction costs at $125 million, but recent estimates have
Related Links: U.S. DOT announcement of TIFIA loan Metropolitan Washington Airports Authority 5/30/2014 financial update for Silver Line FHWA list of TIFIA loan applications and status (updated 8/14/2014) Financing for the $2.8-billion second leg of a northern Virginia rail transit line to run to Washington Dulles International Airport and beyond has taken a step forward with the closing of a $1.3-billion federal loan.The U.S. Dept of Transportation said on Aug. 20 that it had closed a $1.28-billion Transportation Infrastructure Finance and Innovation Act (TIFIA) loan with the Metropolitan Washington Airports Authority (MWAA), which operates Dulles and Ronald Reagan Washington National
Photo by Johanna Knapschaefer/ENR Walsh Construction rescue team, from left: Steve Mendonca, Jeff Trider and Mark Chaisson. Photo by Johanna Knapschaefer/ENR Whittier Bridge construction site in Massachusetts became stage for a rescue. Related Links: Chilean Miner Rescue Effort Aided by Yankee Ingenuity Rescue Took Teamwork, But Ultimately It Was Up To One Man Swift communication and the heroic action of three Walsh Construction workers likely saved the lives of two kayakers who got trapped beneath the Whittier Bridge construction site in Newburyport, Mass., in floodwaters with strong currents following torrential rain.At 3:30 p.m. on Aug. 7, Jeff Trider, a pile-driving
Courtesy of Wikimedia Commons SS Ancon makes the first-ever transit through the Panama Canal in 1914. Photo courtesy of Wikimedia Commons Construction of the original canal. Related Links: Exclusive Interview With Owner Dramatic Digs Mark Panama Canal Expansion Global Talent Converges On Panama Canal Panama Canal Holds Visions Of New Growth Four International Teams Vie For Panama Canal Locks Job Its expansion will be over a year late, but nothing could delay the Panama Canal’s 100th birthday. Opened opened to world trade on August 15, 1914, with the passage of SS Ancon, the 80-kilometer waterway has registered over 1,055,000 transits
Related Links: NZTA official project website Port Of Miami Tunnel Features Big Challenges Marked by the use of an independent self-propelled culvert gantry, New Zealand's largest-ever highway project passed the halfway mark on the first drive in Auckland. The first of parallel 2.4-kilometer-long tunnel bores, when completed this fall, will mark a major milestone for the $1.2-billion Waterview Connection, the last section of a Western Ring Route.The milestone follows a brief hiatus and successful completion of essential maintenance work on the earth-pressure tunnel-boring machine (TBM), nicknamed Alice, in May. The Herrenknecht machine, manufactured at the company’s facility in China, cost
+ Image US EPA Proposed mine shares watershed with world's largest sockeye salmon spawning ground. Related Links: Canadians Evaluating Damages From Massive Tailings Pond Failure EPA Proposed Determination (pdf) The Mount Polley mine spill, in which a tailings pond failure dumped more than 8 million gallons of water, silt and sand into waterways, is likely to provide further ammunition for opponents of the Pebble Mine, an even larger copper and gold project planned in Alaska.Located about 200 miles southwest of Anchorage, the Pebble Mine would be an open-pit mine owned by Northern Dynasty Minerals Ltd., Vancouver, British Columbia.Northern has not
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