Infrastructure

The basic equipment and structures necessary for economic activity and development. Public infrastructure includes roads, power and water supplies, and other structures that provide utility, such as pipelines, bridges, and…

In-Town Levees

Floodwalls and levees located in the cities of Fargo, North Dakota and Moorhead, Minnesota.

Index of Biotic Integrity (IBI)

The stream IBI integrates information from individual, population, community, and ecosystem levels into a single ecologically based index of water resource quality (Karr, 1981). The IBI is a numerical index…

Impact & Impacted Areas

Impact: Any change to the environment, whether adverse or beneficial, resulting from an activity (can be direct or indirect). Impacted Areas: A location that would experience change to the environment,…

Impervious Surfaces

Mainly artificial surfaces—such as pavements (roads, sidewalks, driveways and parking lots) that are covered by impenetrable materials such as asphalt, concrete, brick, and stone--and rooftops. (http://encyclopedia.thefreedictionary.com/Impervious+surface)

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