Mitigating environmental impact
The Orange County Health Care Agency and the California Regional Water Quality Control Board required the closure of five underground storage tanks (USTs) at the former Marine Corps Air Station El Toro in Irvine, Calif. Constructed in 1953, these five USTs held 591,426 gallons of jet propulsion fuel and needed to be decommissioned by filling the tanks with an inert solid material in order to achieve regulatory closure concurrence.
Rehabbing aging concrete wastewater infrastructure
As much of the nation’s wastewater and sewer infrastructure approaches the 50- to 100-year mark, it must be rehabilitated to remain in use for a growing population. Yet, municipal wastewater treatment facilities, sewers, and vaults endure some of the most severe and corrosive environments in the water industry and must pass increasing Environmental Protection Agency (EPA) scrutiny.
Evaluating the sustainable performance of infrastructure assets: A flexible and adaptable approach
Several years ago, I put my career on a different track by entering the broad field of sustainability. I wish I could say that after graduating with my master’s degree I consciously chose to work in the area of standards and rating systems — a line of work that seeks to provide a clear, indisputable path toward sustainability — but that line of work found me. And it’s been a terrific ride since.
Large-diameter rehabilitation in Houston
The City of Houston operates and maintains approximately 6,000 miles of gravity sewers with diameters ranging from 6 inches to 144 inches. The average wastewater flow through the system is estimated at 277 million gallons per day (mgd). Depths as great as 80 feet and the city’s extensive urban development make access to these sewers for inspection and repair difficult.
Collaboration on E4 Stockholm Bypass
This SEK 27.6 billion multidiscipline project required the AECOM and ÅF joint venture (JV) to design 18 kilometers of twin tunnels for the Stockholm Bypass, a 21-kilometer motorway linking southern and northern Stockholm, Sweden. Intended to reduce the impacts on sensitive natural and cultural resources, the underground link will be the world’s second longest road tunnels, with their mainline reaching a maximum depth of 100 meters.
Five ways sustainable cities succeed
Most city leaders would agree that sustainability is a laudable goal. Yet for a term that suggests longevity and benefits for the long haul, it’s also an idea that calls for a broad perspective. The Arcadis Sustainable Cities Index was developed as a ranking of 100 global cities to bring key components of urban sustainability together, revealing our cities’ strengths and areas for improvement.
A new residential silhouette joins the Manhattan skyline
VIΛ 57 West, designed by BIG-Bjarke Ingels Group for the Durst Organization, introduces a new typology to New York City — the “Courtscraper.” The 830,000-square-foot high rise combines the density of an American skyscraper with the communal space of a European courtyard, offering 709 residential units with a 22,000-square-foot garden at the heart of the building.
Rapid dam construction
French Development Enterprises, LLC (FDE) of North Billerica, Mass., Oldcastle Precast of Littleton, Colo., and GEI Consultants of Woburn, Mass., announced successful construction and assembly of the first prototype “French Dam” — a modular precast impoundment for construction and retrofit of hydroelectric dams, water control systems, and power houses.
Engineering our Future: The importance of your voice
Strategic planning and business planning are incredibly powerful guiding forces when done correctly. One recently implemented part of our process is a group interview with what we call the “Young Professionals.” This has yielded some incredibly valuable information that is playing a key role in the initiatives that are shaping the future of these companies.
Urban sports center with unforeseen curves
Due to its complex geometry, the roof and framework design of the Clamart Sports Centre posed advanced technical and aesthetic challenges, such as the double curve in certain areas of the roof. Metsä Wood’s Kerto laminated veneer lumber (LVL) replaced glulam, which is generally used for building long curved beams.
From the publisher: Five brain drains
Along with the stress (and hopefully, joy) that the holiday season brings us, we’ll also be faced with an increasing number of brain drains. These are the things that literally suck the life force out of you. When you get to be my age — 58 — it seems like you have more of them than ever. They rarely go away — they just keep building up. But that doesn’t mean you can’t take some action to change the situation.
One of the most successful technologies used today to deter rainwater intrusion into a building’s exterior wall and protect its envelope is the rainscreen system. Introduced more than 20 years ago in the United States, rainscreen technology has continued to advance, along with its popularity among building owners who desire a “stylish raincoat” for their structures.
Integrated marketing and business development
The two most effective ways to engage a business audience are improving thought leadership and using a multichannel message strategy, according to marketing research firm Marketing Sherpa. In other words, have something valuable to say and say it consistently via several methods.
Skanska USA: Pushing the envelope for lasting community benefits
Founded in 1887, Stockholm, Sweden-based project development and construction firm Skanska AB primarily serves markets in the Nordic region, Europe, and North America. In North America, Skanska USA reported total revenue of $7.1 billion in 2015 — one third of the company’s global revenue. In an exclusive Q&A, Richard Cavallaro, president and CEO of Skanska USA, offers his perspective on the company’s growth, its extensive capabilities, and industry trends.
Messages in the sand from Hurricane Sandy
Days after Hurricane Sandy hit the Atlantic Coast of the United States in 2012, coastal engineers with the U.S. Army Corps of Engineers, New York District were walking the beaches to see the damages. One of them was on a New Jersey beach and was stunned to see a house completely demolished nearby a house that looked like it was barely touched by Sandy’s force.