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Small ponds were built to provide compensatory storage

The Train Shed project is being constructed within the 100 year flood plain of the Snoqualmie River. The structure has been designed as "flood proof" and the post-construction site topography must be equivalent to the preconstruction conditions. To compensate for the fill being brought in to build the track leads, several ponds were constructed towards to rear of the project site. These ponds provide flood storage during a flood event to prevent the project from increasing the severity of area flooding.