Economic Analysis of 4 Different Fish Passage Alternatives with Varying Costs, Annual Maintenance and Replacement in Maine

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This analysis compares 4 alternative practices that allow fish passage through stream crossings: a bridge; round culvert; arch culvert; and 2 plastic culverts. While each alternative has differing effectiveness regarding the ecological aspects of fish passage, they also have differing installation costs, annual maintenance costs, partial or full replacement costs, and varying practice lifespans.