Technologies to monitor emergency lighting systems throughout buildings or campuses have increased in popularity across Australia over the last decade. During the last six years, emergency lighting monitoring systems have also become more popular in North America. The idea behind these systems is to connect all exit signs and emergency (battery-powered) lighting devices to a central computer station so that they can individually report their functional status when tested, offering significant time and cost benefits to facility managers.

As stated in Watts it Matter to You? Electricity Generation, the American Society of Civil Engineers (ASCE) assigned the United States’ ENERGY infrastructure a grade of “D+” on their 2009 Report Card for America’s Infrastructure. Electricity transmission, which is the second of three installments on energy, covers transmission lines and grid networks, “green” power transmission, and "smart" grids. Electricity distribution will be covered in installment three as we follow the path of electricity from a power generating facility to your home or business.

As stated in Watts it Matter to You? Electricity Transmission, the American Society of Civil Engineers (ASCE) assigned the United States’ ENERGY infrastructure a grade of “D+” on their 2009 Report Card for America’s Infrastructure. “Electricity Distribution” explains the final step in the path of electricity from a power-generating facility to your home or business. It covers the electric utility business model, how the distribution infrastructure drives generation and transmission decisions, and metering electricity.

In most cases, property owners are required by regulation to maintain pond embankments and outfall works as related to structural integrity and dam safety. Proper maintenance also lessens the liability of pond and lake ownership by reducing the likelihood of failures that can impact downstream property. Owners or property managers may believe that proper maintenance is occurring only to later learn that they need expensive repairs. This situation illustrates that many contractors providing routine maintenance, such as landscapers, are not trained to properly identify issues that can be problematic or lead to increased cost of ownership.

Theodore (Ted) E. Scott is the Managing Member of Stormwater Maintenance, LLC, in Hunt Valley, Maryland. He has provided our audience some insights into the inspection, maintenance, and repair of storm water systems. There are three categories of these systems that we’ll investigate: surface basins, underground structures and drainage systems.

The City of Takoma Park, Maryland, needed to replace a failing retaining wall that supports a roadway in a small residential development. The Linden Avenue site is directly adjacent to Sligo Creek, which is a tributary of Anacostia Creek, a river undergoing a significant restoration effort. T. E. Scott & Associates, Inc., designed a replacement for the failing retaining wall infrastructure, created a pocket park for the local residents, and provided water quality treatment for the unmanaged watershed. This combination of aesthetic and environmental improvements adds value to the project. We’ll look at some stormwater flow design calculations, a storm water flow splitter, an urban modular wetland unit, a step/plunge pool, and an interesting retaining wall design.

Wastewater systems is the sixth topic in our U.S. infrastructure series. The American Society of Civil Engineers (ASCE) assigned the United States’ WASTEWATER infrastructure a grade of “D-” on their 2009 Report Card for America’s Infrastructure. Here we explore the funding issues that effect the aging treatment plants and waterways that make up our nation's wastewater infrastructure.

Zach Kent is a stormwater engineer for Modular Wetlands in Oceanside, California. We learned about Modular Wetlands’ urban wetland unit in our case study, “Water Quality Retrofit and Retaining Wall Remediation.” We've partnered with Kent to provide a perspective on some dynamics within the stormwater management industry over the last decade, including new processes and technologies designed to meet higher regulatory standards.

Although there are far more residential fires than those involving non-residential structures, commercial fires still have a hefty price: in 2009 the 103,500 non-residential fires cost 105 lives and over $3 billion in losses, according to the U.S. Fire Administration. Preventive actions are critical to avoid these losses altogether. That’s where a properly designed and installed fire alarm system comes in.

Reduce, reuse, recycle. This is the simplest mantra of the environmental movement and the guiding principle for families and small programs across the nation. How does this principle apply to infrastructure, specifically asphalt pavement? We already use as little asphalt pavement as we can, but this is more an economic decision. We recycle asphalt pavement to build new pavement. We reuse it as clean fill. What else can we do with it? Can we use it to collect solar energy?

Located in Freeport, Pennsylvania, about a 30 minute drive north of Pittsburgh, Buffalo Township’s water treatment plant produces over 700,000 gallons of fresh water daily. The plant provides drinking water to over 5,000 residents in Buffalo Township and Freeport Borough. It is also the fresh water supplier for the Municipal Authority of South Buffalo Township. Join Buildipedia for a photo tour of Buffalo Township’s water treatment plant, as we trace the flow of water from the Allegheny River to its distribution throughout the utility.

Buffalo Township’s wastewater treatment plant is located along Buffalo Creek in Pennsylvania, beneath the State Route 28 bridge. This type of wastewater treatment plant is perfect to serve smaller communities. It supports 6,000 people with 3,100 sewer connections to homes and businesses throughout Sarver, Pennsylvania, and the vicinity. It’s an excellent example of an efficient wastewater infrastructure that uses extended aeration to treat raw sewage, without any initial sedimentation.