Tag: stormwater ponds

A stormwater management pond is an artificial pond that is designed to collect and retain urban stormwater. They are frequently built into urban areas in North America to also retain sediments and other materials.

Integrating Land-Use Changes for Future Stormwater Projects

Integrating Land-Use Changes for Future Stormwater Projects

In early July 2013, 2 inches of rain fell within a 45-minute period at the city-owned Lebanon Municipal Airport in Lebanon, NH. This storm created devastation for the city and the airport, with multiple slope failures and roadway washouts. In all, 3.47 inches of rain fell during the 10-year storm

Good Housekeeping

Good Housekeeping

The Firestone Grand Prix consists of races featuring open-wheel IndyCars, with each race staged in a different American city. Most of the races are run on tracks, but a few of the courses are on city streets.

Case Study: Industrial Stormwater Treatment at the Port of Tacoma

Case Study: Industrial Stormwater Treatment at the Port of Tacoma

Background

Washington State has some of the most stringent industrial stormwater treatment standards in the United States with exceptionally low benchmark requirements for zinc, copper, and turbidity, also known as total suspended solids (TSS) or sediment.

Within the Port of Tacoma there are three industrial sites that were exceeding their benchmarks

Stopping Erosion Flat Out

Stopping Erosion Flat Out

Twenty years ago my brother and I started out as small excavating and general contractors,” says Chauncey Webster, president of East Coast Green Inc., in St. Thomas, PA. “Gradually we leaned more and more toward erosion control work.”

Temporary Erosion Control  Best Management Practices – Installation & Implementation

Temporary Erosion Control Best Management Practices – Installation & Implementation

When designing your Stormwater Pollution Prevention Plan (SWPPP) there are several temporary best management practices to pick from, but picking the right one can be tricky. Between considering site conditions, performance goals, installation methods, and regulations…how can you assess, select, and install the right BMP for your site?

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Stormwater Performance Assessment: Inspection, Testing, and Monitoring

Stormwater Performance Assessment: Inspection, Testing, and Monitoring

Even the best designed stormwater treatment practices decline in performance over time. Regular assessment of the treatment’s performance (in relation to its goal) is critical for quantifying and qualifying its current performance, necessary maintenance, and future expectations. But…what is the best assessment method for your treatment? And, how can you

Airport Flood Control Considerations

Airport Flood Control Considerations

Think of flood control and the image of a raging river may come to mind. But small floods—from creeks overflowing their banks or urban stormwater runoff in areas that don’t have adequate drainage—also cause problems. Fortunately, there are some effective products that deliver the solutions needed to prevent or control

Control Flooding, Curb Erosion

Control Flooding, Curb Erosion

Think of flood control and the image of a raging river may come to mind. But small floods—from creeks overflowing their banks or urban stormwater runoff in areas that don’t have adequate drainage—also cause problems. Fortunately, there are some effective products that deliver the solutions needed to prevent or control

The Principles of Gravity Separation – Part 4

The Principles of Gravity Separation – Part 4

Quiescent Settling
With quiescent settling, the relevant design parameter is the volume of the wet pool rather than its surface area. This is understood intuitively. The larger the volume of the wet pool in relationship to the incoming storm volume, the greater the fraction of the storm volume retained by the

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