CSAH 82 Stormwater Analysis and Storage

Mankato, MN | Water

Overview

ISG completed the Hydrologic/Hydraulic study for Blue Earth County Public Works on the reconstruction of CSAH 82 in Mankato, MN. The project included the reconstruction of culverts under the highway to provide drainage to approximately two thousand acres of Urban and Rural areas including Blue Earth County Ditch 12, Wilson Creek and portions of MnDOT Trunk Highway 22.


Opportunity

Working with the City of Mankato, Private Developers, and the County, a drainage system was established utilizing in-channel storage, a created wetland and a two celled/two stage pond system, the peak flows were reduced and the culverts were sized accordingly to protect the highway and the land downstream. Portions of the system were planted with native species that have thrived while further stabilizing CSAH 82 from flooding events.


Business Unit News

ISG Welcomes Project Manager Marty Metcalf – Former Waterloo Community School District Facility Director

May 5, 2022 (Waterloo, IA) – ISG is excited to continue to build upon its PreK-12 facility planning strengths with the addition of former Waterloo Community School District Facility Director, Marty Metcalf. Bringing over 40 years of facility management experience, including the oversight and maintenance of 21 school facilities with over 10,000 students, Marty will collaborate with school districts in Iowa and across the Midwest to develop strategic and implementable long-range plans.
Read More

ISG Invests in the Des Moines Community with New Office Location

February 22, 2022 (Des Moines, IA) – Eight years after establishing roots in Des Moines’ historic East Village, local architecture, engineering, environmental, and planning firm, ISG, opens its doors at a new location in the neighborhood.
Read More