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By Margaret Buranen Having reliable water-quality and -quantity data makes stormwater management much more effective. Technological advances in monitoring and collecting tools have made possible real-time data that can be custom-programmed for the site. A Green Roof in Pennsylvania In southwestern Pennsylvania, an average rainstorm can produce 2 inches of rain in a 24-hour period. Even 2 inches of rain falling on a roof can result in runoff of more than 600 gallons of water. As little as 1/10 inch of ra...... continue reading
From: Stormwater Topics: BMP Manufactured, Illicit Discharge, Water-quality Monitoring
By Carol Brzozowski Damaged pipes pose a host of problems, from significant maintenance costs to environmental threats. Many communities throughout North America have been mitigating those problems in such a way that minimizes costs, traffic interruption, and maximizes on the longevity of newer materials and repair methods. Stoney Creek In Oakland Township, MI, a pipe arch culvert that allowed Stoney Creek to pass underneath Stoney Creek Road had corrosion and was exhibiting various signs of distress du...... continue reading
From: Stormwater Topics: BMP Manufactured, Drainage Systems, Program Management
By Steve Goldberg Protecting Lake Lewisville Rural Texas contains a number of what are termed “farm to market” roads, or “FM” for short. FM 720 is one of those roads, located in Denton County, just northeast of Ft. Worth. The Texas Department of Transportation (TxDOT) is in the process of upgrading the roadway because of population growth in the area. “They’re expanding FM 720 from two to four lanes. Where the road crosses Lake Lewisville, there is an existing double-lane bridge over the lake, and TxDOT...... continue reading
From: Stormwater Topics: BMP Manufactured, BMP Post Construction, Pollutants
By Steve Goldberg Theoretically, rainwater harvesting and reuse has a number of tangible benefits: * It’s a free source of water that can be obtained with something as simple and inexpensive as a rain barrel collecting rooftop runoff. * It can reduce the load on stormwater systems, which can in turn result in fewer pollutants entering local bodies of water. * It can decrease the use of potable municipal water for nonpotable needs. * A lot of energy is required to obtain, clean, and transport water; if d...... continue reading
From: Stormwater Topics: BMP Manufactured, BMP Post Construction, Low-impact Development
By James McRay If the saying goes, “The whole is more than the sum of its parts,” then all those parts must absolutely be important in creating a dynamic final product. This adage is especially true at Chicago’s O’Hare International Airport, one of the world’s busiest, which is in the midst of one of the country’s largest construction projects. The O’Hare Modernization Program (OMP) is transforming O’Hare International Airport’s airfield from an outdated system of intersecting runways into a mode...... continue reading
From: Stormwater Topics: BMP Manufactured, Drainage Systems, Project Design
By Don Talend Handling Wet, Emergency Conditions The intersection of Routes 9 and 440 with the Garden State Parkway is one of New Jersey’s busiest and most vital cloverleaf complexes. Sinkholes began to appear there after Hurricane Irene in 2011. “Soil was collapsing into large-diameter corrugated metal pipe [CMP] storm sewers and creating big sinkholes,” notes Alkesh Desai, stormwater emergency manager for the New Jersey Department of Transportation (NJDOT). “When we inspected, we found that mor...... continue reading
From: Stormwater Topics: BMP Manufactured, Drainage Systems, Flood Control
By Kevin Daggett and Jerry Lovato The Albuquerque Metropolitan Arroyo Control Authority (AMAFCA) has been constructing stormwater-quality facilities and best management practices (BMPs) for more than 13 years. During that time, many different approaches have been tested for effectiveness. The BMP selection process has evolved over time through lessons learned and the incorporation of new methodologies and technologies. AMAFCA’s approach to water quality has evolved to adapt to local hydrologic, hydrauli...... continue reading
From: Stormwater Topics: BMP Manufactured, Pollutants, Water Quality Monitoring
By Carol Brzozowski Eric Stein is the principal scientist in the biology department of the Southern California Coastal Water Research Project, a public research institute that has been in existence since 1969. “Our main mission is to do science and research to support water-quality management in the region that pertains to streams, beaches, and the ocean. We provide independent technical resources that support the regulators and the regulated,” he says. One of the projects in which Stein has been involv...... continue reading
From: Stormwater Topics: BMP Manufactured, Monitoring, Pollutants
By Angus W. Stocking Smuggler’s Notch ski resort, near Jeffersonville, VT, was established in 1956 and is New England’s fourth-largest resort area. It is built around Morse, Madonna, and Sterling mountains. Record storms in the Northeast, and the resulting record snowmelt, caused near-flooding at Smuggler’s Notch, and two 72-inch “boilerplate” culverts, each 130 feet long, were filled to near capacity with fast-moving water. They survived but were damaged; it was clear to managers that the culver...... continue reading
From: Stormwater Topics: BMP Manufactured, Drainage Systems, Project Design
By Don Talend Back in the late 2000s, the city of Portland, ME, faced a situation that is not uncommon for a Northeastern municipality: separating sewage and stormwater flows, and replacing very old infrastructure in the process. The $4 million West Side Interceptor combined sewer overflow abatement project replaced 100-year-old 24- and 30-inch-diameter vitrified clay line with 60-inch-diameter, high-performance polypropylene pipe. Additionally, the project created a parallel 10-foot-diameter lin...... continue reading
From: Stormwater Topics: BMP Manufactured, Drainage Systems, Maintenance
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