Alger Ravine

The Alger Ravine Project involved the stabilization of a stream where it became incised and was experiencing high stormwater flows.

Croton Dam

HEI assisted Consumers Energy with a mussel survey on the Muskegon River.
As part of the Croton Dam wall replacement project, our group assisted Consumers Energy with a freshwater mussel survey on the Muskegon River.

HEI Biologists Assist with Mussel Survey and Relocation Project

As part of a mussel survey and relocation project, biologists at Holland Engineering completed snorkel surveys of the Huron River in metro Detroit. Due to the new mussel protocol requirements and tight project deadlines, this project had to be completed quickly and efficiently.

Michigan releases new mussel protocols for 2018. Are you up to date?

Freshwater mussels are filter feeders who burrow in the substrate of rivers, streams, and lakes throughout the world. The U.S. alone is home to some 300 species. According to the U.S. Fish and Wildlife Service (USFWS) and the Nature Conservancy, approximately 70 percent of mussel species in North America are extinct or endangered. Michigan contains four federally listed species (six including two not found in the state since 1930) and twenty-six additional state-listed mussel species (all federally listed species are also listed in the state). Two of the state-listed species will be reviewed by the USFWS for possible federal listing before 2023.

Wixom Road Mussel Surveys

As part of a mussel survey and relocation project, our biologists completed snorkel surveys of the Huron River in metro Detroit.

Environmental Group Presents at USDA Wetlands Event

Earlier this summer, our Environmental Group presented at a U.S. Department of Agriculture “Working with Wetlands” field day at Vic Rogers Farm in Benton Harbor, Michigan. Attendees included local farmers in Berrien County, various local conservation program representatives, and Michigan Department of Environmental Quality (MDEQ) staff.

HEI Biologist Participates in Cordova Mussel Event

The Cordova, Illinois cleaning is a unique event with many different groups working together along the Mississippi River. Holland Engineering Biologist, Larissa Herrera, volunteered for the Cordova Mussel Event in Cordova, Illinois this summer. The event is sponsored by the US Army Corps of Engineers and has been taking place for over 15 years. The …

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Senior Biologist Joins HEI Environmental Group

We are excited to announce that Nick J. Gressick, MS has joined Holland Engineering’s Environmental Group as a Senior Biologist. Nick has a comprehensive background in wetlands and aquatic ecology. He has worked extensively with the Michigan Nature Association and was a previous employee of the Michigan Department of Environmental Quality (MDEQ). He has expertise …

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HEI’s Environmental Group is Expanding

Recognizing the increased demand for environmental work throughout the energy, civil infrastructure, and government sectors, Holland Engineering has added two new team members to the Environmental Group. Each of them brings a diverse set of skills that will greatly benefit our clients. Gary A. Dawson Ph.D. Senior Project Manager/Consultant  Gary recently joined Holland Engineering after a long …

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