Rockwell City Water Resource Restoration Enhancements

Rockwell City, IA | Water


The City of Rockwell City, Iowa (City) enlisted the design expertise of ISG water resource engineers to construct stormwater quality improvements as additional enhancements to the City’s Downtown Square Improvement project.


As the City implemented multiple downtown infrastructure improvement projects, they took advantage of a special State Revolving Fund (SRF) Water Resource Restoration Sponsored Project program through the Iowa Department of Natural Resources. The program offered the City a discounted interest rate, allowing the interest savings to be used on the construction of stormwater quality improvements.


ISG water resource experts designed and implemented two bioretention cell areas at the intersection of Third and South Streets. These stormwater runoff retention areas were designed to allow sediments to filter out of the stormwater before it entered the surface and other water ways. The City’s residential and feed mill water runoff was slowed, filtered, and retained—improving water quality. The added benefits of the bioretention cells were the beautification of the downtown business district with low maintenance native plantings, and the reduced stress on the City’s infrastructure and long-term stormwater treatment costs.

The addition of a rain garden at the Calhoun County Courthouse served as another natural element and attractive feature designed for stormwater improvement. The functional landscaped area was created to capture and filter stormwater before entering storm drains. The rain garden collects water in a constructed shallow vegetated depression, allowing water to slowly soak into the ground. By simultaneously constructing the rain garden and bioretention cells with other downtown improvements projects, the City maximized their investment, increased awareness of water quality treatment, and was able to take advantage of a viable outside funding source.

Market News

Mankato MoonDogs’ Franklin Rogers Park to be Renamed ISG Field

October 20, 2020 (Mankato, Minnesota) – Building on a series of successful partnerships and projects to bolster its ballpark, the Mankato MoonDogs, a member of the Northwoods League, has exercised its rights with the landlord, the City of Mankato, to lease the naming rights of Franklin Rogers Park to ISG. The ballpark will be named ISG Field after the professional design and engineering firm that was founded in Mankato in 1973. ISG Field represents the MoonDogs’ commitment to providing top quality local baseball and an enriching fan experience. This is the latest update for the team, which has unveiled a new logo and has implemented several renovations for the ballpark in recent years.
Read More

ISG Accelerates Growth with New Office in Rochester, Minnesota

October 13, 2020 (Rochester, Minnesota) – ISG, a leading professional design firm in architecture, engineering, planning, and environmental solutions, announces plans to open a new office in Rochester, Minnesota. The addition will allow the firm to better serve its existing and growing client base and leverage the area’s diverse talent pool. The office will be the firm’s fourth location in Minnesota, adding to its six other offices across the Midwest in Wisconsin, Iowa, and South Dakota.
Read More