Officials of the Massachusetts Water Resources Authority have identified two “hot spots” close to the site of a major water supply pipe break in Boston on May 1 that may be where a critical 10-ft-dia coupling is buried after being forced loose by the rupture. The break generated a two-day boil-water edict. Crews from Barletta Engineering, Canton, Mass., now are designing a trench box to protect the pipe as they begin to excavate, an MWRA spokeswoman told ENR on May 18. The coupling is expected to offer clues to the cause of the rupture, but the agency is not speculating
Even as the U.S. Navy awarded seven U.S. and Guam-based joint-venture teams on May 10 a $4-billion indefinite-delivery, indefinite-quantity contract for design-build work on the Pacific island and nearby sites over five years, it also started to compete the first major task order under the contract. Photo: U.S. Navy, by Christopher S. Borgren II Looming troop transfer will unleash huge Guam building boom. Construction will support relocation of thousands of U.S. Marines to Guam from their current base on the Japanese island of Okinawa. The contract is the largest ever by the Naval Facilities Engineering Command’s Honolulu division. Under the
Construction is under way on the largest and most expensive highway project in the state of Utah, the $1.725-billion Interstate 15 CORE project. This week, crews from a consortium called Provo River Constructors began prep work along a 24-mile stretch, which included grading shoulders to add two lanes in both directions, the extension of a drainage pipe and the demolition of three bridges. Later stages of the project will rebuild and reconfigure 10 freeway interchanges and replace 55 aging bridges. Provo River Constructors includes Wadsworth Bros. Construction, Draper, Utah; Fluor Corp., Aliso Viejo, Calif.; and Ames Construction, Salt Lake City.
Ten years ago, after a lengthy period of being tested on bridges throughout the country, fiber-reinforced polymer composites—touted for their lightness, longevity and resistance to corrosion compared with traditional materials—seemed poised to enter the U.S. mainstream bridge-building market.
In Maine, contractors are “blowing up” bridges: They are inflating hollow carbon-fiber tubes on-site, bending them into arches and infusing them with resin. Filled with concrete, the bridges are ready to be decked, backfilled and paved. Acting as bridge arches for short spans, carbon tubes are inflated and filled with concrete by workers in Maine. Related Links: Dozens of Test Projects Later, Advocates Still Have Durable Dreams Material for Milk Containers Now Supports Railroad Traffic Brit E. Svoboda, chief executive of Advanced Infrastructure Technologies Inc., which owns the rights to the system, is hiking around the U.S. to promote its
Like any railroad crossing, the two short bridges completed this month at Fort Eustis, Va. will be expected to support 130 tons. Unlike typical crossings, however, they are made almost entirely of materials that once were used to contain milk and detergent. Contractors say plastic materials allowed for lighter equipment. Related Links: Dozens of Test Projects Later, Advocates Still Have Durable Dreams Bridge-in-a-Backpack Tech ‘Blows Up’ Next-Gen Bridges Working with Rutgers University, Axion International Holdings Inc., New Providence, N.J., developed proprietary polymer formulas that combine plastics to make an end product tougher than its ingredients. Sales partner Innovative Green Solutions
Delays in developing large power projects in Florida are bad news for contractors in a state already hurt by sharp construction downturns, says the Greater Florida Chapter of Associated General Contractors president. Photo: Florida Power and Light power plans FP&L says Riviera gas plant will proceed on schedule, but nuclear units face delays. Florida’s biggest utilities, Juno Beach-based Florida Power & Light (FP&L) and Progress Energy Florida, “stopped work on everything but the essentials” after the state Public Service Commission (PSC) in January rejected most of the big rate increases the utilities had sought, said Richard Marshall, who also is
The Shaw Group, Baton Rouge, La., was awarded a $197-million contract from New Orleans-based Entergy Corp. to provide engineering, procurement and construction services to add 178 MW of power to two nuclear units at Entergy’s Grand Gulf Nuclear plant in Port Gibson, Miss. The upgrade would boost the capacity of the plant by 13%, making it the largest single-unit nuclear powerplant in the country. Engineering and procurement has begun, and plant modifications will occur in the spring of 2012.
A proposal to build “sand booms” to help keep the oil spill in the Gulf of Mexico from fouling Louisiana wetlands may help jump-start long-dreamed-of schemes to re-nourish Louisiana’s barrier islands. Photo courtesy of Baggerwereld.com Van Oord’s 9-year-old hopper dredge Rotterdam has a 21,500 cubic meter capacity and can dredge in waters as deep as 60 m, and up to 120 m, with extensions. Van Oord has 100 vessels worldwide and claims its fleet is three times the size of the entire U.S. dredging fleet. Related Links: Oil-Spill Battlefront Spreads From Gulf to Washington, D.C. Setting Oil Spill Liability Limit:
While natural disasters may be inevitable, disastrous consequences are not, if policy-makers, designers and builders plan successfully. This theme was explored on May 12 at a one-day workshop in Washington, D.C., convened by the National Building Museum, which is laying the groundwork for a major exhibition in fall 2011 to examine how communities can improve planning to resist the consequences of natural disasters. Event planners looked for guidance from the museum’s Industry Council for the Built Environment, comprising about 60 owners and association representatives. BLUMENAUR “Disasters don’t have to be unmitigated disasters,” said U.S. Rep. Earl Blumenaur (D- Ore.), vice
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