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Case Study

Progress toward restoring value of Fountain Lake

Every Challenge Has a Backstory

Minnesota’s Fountain Lake has suffered from poor water quality for years, and specifically, high phosphorus concentrations, overabundant algae, and low clarity. A significant part of the challenge is excessive internal phosphorus loading, or the recycling of phosphorus from lake-bottom sediments.

In a multi-year undertaking, Minnesota’s Shell Rock River Watershed District embarked on a $15 million remediation and restoration program to improve water quality, aquatic habitat, and recreational opportunities for the community. OBG has served and continues to perform many roles as a strategic partner in the program, leading implementation of the multi-year dredging program that aims to remove more than 1 million cubic yards of phosphorus-laden sediment from the lake. 

OBG’s Focus on Solutions

OBG has provided project design, permitting, bidding, and construction services to support the program, as well as developed a constructible dredge plan. The program includes construction of a confined disposal facility (CDF) that will be used, once dredging begins, to manage sediment removed from the lake.

Results that Matter

The removal of more than 1 million cubic yards of sediment will reduce the lake’s internal phosphorus load and increase the water depth—ultimately maximizing water clarity and water quality throughout the watershed.

Learn more about this project.