Wetlands

  • Post Category:Glossary

Lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water.

Weir

  • Post Category:Glossary

A low wall or dam built across a stream or river to raise the level of the water or to change the direction of its flow.

Tieback Embankment

  • Post Category:Glossary

The embankment constructed between the diversion inlet control structure, the Wild Rice River control structure, the Red River control structure and high ground in Minnesota.

Staging Area

  • Post Category:Glossary

A defined area immediately upstream of the dam. When the Project is operated, water would be temporarily detained in the staging area to minimize impacts downstream. The staging area encompasses…

Watershed

  • Post Category:Glossary

A geographic area from which water is drained by a river and its tributaries to a common outlet. A ridge or drainage divide separates a watershed from adjacent watersheds.

Spoil Piles

  • Post Category:Glossary

excavated materials consisting of topsoil or subsoils that have been removed and temporarily stored during the construction activity. (https://www.michigan.gov/documents/deq/deq- wb-nps-sp_250905_7.pdf)

Rock-Ramps

  • Post Category:Glossary

A passage for surplus water to run over or around an obstruction (as a dam) created with rocks.

Special Flood Hazard Area (SFHA)

  • Post Category:Glossary

An area having special flood, mudflow or flood-related erosion hazards and shown on a Flood Hazard Boundary Map (FHBM) or a Flood Insurance Rate Map (FIRM) Zone A, AO, A1-A30,…

Significant Effect

  • Post Category:Glossary

An effect that is predicted to be above an identified threshold and/or an effect that was determined by the lead agencies to have a magnitude that is great based on…

Riparian Floodplain

  • Post Category:Glossary

A bottomland, deciduous or deciduous-conifer forest community occupying low- lying areas adjacent to streams and rivers of third order or greater, and subject to periodic over-the- bank flooding and cycles…

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