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Stream pollution, or an excess of naturally occurring sediment, is a continual problem within watersheds and directly related to fluctuations of its fish inhabitants. Sediment introduction in a stream system occurs primarily by sheet flow and/or concentrated flow. Restoration efforts require knowledge in water resource engineering, fish and invertebrate habitat, and construction management. This report documents the hydrologic engineering analysis, planning, management, and monitoring of a successful stream restoration project in a rural region of Michigan’s Upper Peninsula. The Otter River restoration project was initiated in May 1999 to confront the problem of sediment pollution into the Otter Lake watershed....
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Due to the occurrence high-intensity rainfall events more frequently than expected, the Michigan Department of Transportation has deemed it necessary to Update the regional rainfall intensity-duration-frequency (IDF) estimates for the State. Rainfall intensity estimates are to be determined for each of seven durations (1, 2, 3, 6, 12, 18 and 24 hours) and six frequencies (0.5, 0.2, O.1, 0.04, 0.02. and 0.01 per year). Traditionally, method of moments or maximum likelihood procedures have been used to fit a suitable probability distribution to annual maximum or partial duration series data for each gage, and isopluvial maps have been developed from these site-specific IDF estimates using interpolation procedures...
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