Tag Archives: stream restoration

Army Corps Approves Los Angeles River Restoration Plan

In May, the Army Corps of Engineers (Corps) announced its approval for Alternative 20, a plan to restore an 18-km (11-mi) stretch of the Los Angeles River that runs from Glendale to downtown Los Angeles. Since the 1930s, most of the 82-km (51-mi) river has been lined with concrete and serves as a flood control […]

Continue Reading

Snow Creek Stream Restoration Envision Platinum Award

In mid-November, the Institute for Sustainable Infrastructure (ISI) bestowed the Envision™ Platinum Award on the Snow Creek Stream Environment Zone restoration project, located in North Lake Tahoe, California. This is the highest level of ISI’s rating system, and the Snow Creek project is only the second to receive it. The project involved the restoration of […]

Continue Reading

U.K. Turns Red River Blue

Turning red streams blue is taking on a whole new meaning in Britain. On maps, red streams typically denote impaired waters while healthy streams are shown in blue. However, the Medlock, a major river in England, is known as the red river for the 8 million red Accrington bricks that line the river culvert. The […]

Continue Reading

Reports Detail Stream Health and Remediation Strategies

On July 10, the U.S. Geological Survey released a report — Ecological Health in the Nation’s Streams, 1995-–2003. Chemical and physical properties can provide a picture of stream health, but biological indicators can provide a more comprehensive perspective. Species’ health can represent the cumulative effects of physical and chemical changes to an environment, and they […]

Continue Reading

Maryland Forest Legislation First of Its Kind

On May 2, Maryland Gov. Martin O’Malley signed into law the Forest Preservation Act of 2013. According to the Maryland Department of Natural Resources (DNR), the law is the first of its kind in the nation. It requires no net loss of the state’s current 40% tree canopy and provides incentives to surpass the statewide […]

Continue Reading

USGS Study Shows Effects of Urbanization on Streams

A recent study by the U.S. Geological Survey (USGS) found that sensitive species loss can occur during the earliest stages of urban development. In addition, there is no single factor responsible for stream degradation. Previous though was that stream systems are resilient up to certain levels of impervious cover (typically 0–10%) within a watershed. However, […]

Continue Reading

EPA Releases Assessment Guide for Stream Restoration Projects

Urban stormwater significantly impacts not only water quality but also the physical stability and condition of headwater streams due to flashy and frequent erosive flows.   The U.S. Environmental Protection Agency (EPA) recently announced the release of A Function-Based Framework for Stream Assessment & Restoration Projects. According to EPA, stream restoration is relatively young and still […]

Continue Reading

Stream-Channel Protection Requires Focus on More Than Flow Magnitude

Presenter: Robert J. Hawley, Sustainable Streams Session 25: Vigilance in Monitoring and Maintenance According to Robert Hawley — principal scientist at Sustainable Streams — adequate stream-channel protection requires stormwater controls that are designed with local data to address not only peak flows but also the frequency and duration of erosive flows. Channel instability is generally […]

Continue Reading

Donnaldson Run Stream Restoration Decreases Erosion

Donaldson Run is a stream in Arlington County that connects with the Potomac River and eventually the Chesapeake Bay. To fix serious erosion problems, the County collaborated with the neighboring civic associations to restore Donaldson Run’s Tributary A in 2006. Donaldson Run is located in an urban watershed with relatively high impervious surface cover and […]

Continue Reading