Structure Gallery
Below is a gallery of the wetland restoration structures designed, installed and implemented by Ducks Unlimited's Great Lakes/Atlantic Regional Office engineering staff. Please click on one of the thumbnail images or structure names for a larger picture and more information.
These photos are merely a sample of the diverse work the GLARO engineers do every year. For an overview of GLARO's engineering services, please visit the GLARO Engineering homepage. For more detailed information on GLARO's restoration projects, several examples are featured on the Engineering Projects page.
If you have questions about these structures or would like to see larger images, please contact Warren Weirich at 734.623.2000.
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Fishing pier Back Bay NWR, VA |
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Six-bay sheet pile structure Crane Lake, IL
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Fixed crest structure with beaver guard Erie NWR, PA |
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Boardwalk Great Dismal Swamp NWR, VA |
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Concrete weir dam Lackey Pond, MA |
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Structure installation Montezuma, NY |
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Water control structure with float cutoff Linton, IN |
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Six-bay structure with fish ladder Moosehorn, ME |
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Structure retrofit with shoreline protection Patuxent NWR, MD |
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Ten-bay weir gate system Prime Hook NWR, DE |
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Sheet pile weir with water control gates Rush Lake, WI |
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Four-way water control structure with gates Spring Lake, IL |
Back Bay National Wildlife Refuge, Virginia
For more information about the Back Bay NWR project, please visit our Engineering Projects page.

Fishing pier with boat ramp
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Crane Lake, Illinois

Six-bay sheet pile structure
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Erie National Wildlife Refuge, Pennsylvania

Fixed crest structure with beaver guard

Close-up of beaver guard
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Great Dismal Swamp National Wildlife Refuge, Virginia

Boardwalk
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Lackey Pond, Massachusetts

Concrete weir dam
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Montezuma Wetland Complex, New York

Structure installation
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Linton, Indiana

Water control structure with float cutoff

Aerial of macro topography
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Moosehorn, Maine

Six-bay structure with fish ladder - Upstream

Six-bay structure with fish ladder - Downstream
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Patuxent National Wildlife Refuge, Maryland

Structure retrofit with shoreline protection
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Prime Hook National Wildlife Refuge, Delaware

Ten-bay weir gate system
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Rush Lake, Wisconsin
For more information about the Rush Lake restoration project, please visit our Engineering Projects page.

Sheet pile weir with water control gates

Railcar bridge
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Spring Lake, Illinois

Four-way water control structure with gates
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