Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/33990
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dc.contributor.authorSuedel, Burton C.-
dc.contributor.authorWilkins, Justin L.-
dc.contributor.authorSavant, Gaurav, 1979--
dc.contributor.authorCalappi, Timothy J.-
dc.contributor.authorLabuhn, Katherine A.-
dc.contributor.authorFowler, Patrick S.-
dc.contributor.authorBachand, Marianne.-
dc.contributor.authorGuénard, Guillaume.-
dc.date.accessioned2019-09-09T17:08:30Z-
dc.date.available2019-09-09T17:08:30Z-
dc.date.issued2019-09-
dc.identifier.govdocERDC TR-19-24-
dc.identifier.urihttps://hdl.handle.net/11681/33990-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/33990-
dc.descriptionTechnical Report-
dc.description.abstractThe St. Marys rapids at the outlet of Lake Superior is a vital habitat for a wide range of aquatic species. The regulation of the outflows from Lake Superior by Compensating Works (i.e., a series of control structures) can lead to rapid changes in hydraulic characteristics, potentially creating adverse conditions for downstream biota. To accomplish more naturally varying flows, the U.S. Army Corps of Engineers (USACE) Detroit District (LRE) is constructing four remotely operated gates on the United States (U.S.) side of the Compensating Works. The gates will be capable of being opened slowly (over many hours) until a desired discharge is achieved. A two-dimensional (2-D) model was developed to evaluate multiple scenarios and analyze the total area available for fish spawning based on depth and velocity associated with a particular gate setting. The model also addressed the recommendation for water level rates of change associated with gate changes, suggesting that water level rates of change be held to less than 10 centimeters (cm)/hour to avoid stranding juvenile fish. This is consistent with Engineering With Nature® (EWN) principles of maximizing habitat value of the rapids while maintaining water regulation objectives.en_US
dc.description.sponsorshipEngineering With Nature Program (U.S.)en_US
dc.description.sponsorshipInternational Joint Commission.-
dc.description.tableofcontentsAbstract ..................................................................................................................................................... ii Figures and Tables .................................................................................................................................. iv Preface .................................................................................................................................................... vii Acronyms and Abbreviations .................................................................................................................. ix Unit Conversion Factors ........................................................................................................................... x 1 Introduction ...................................................................................................................................... 1 1.1 Background ..................................................................................................................... 1 1.2 Objectives ........................................................................................................................ 5 1.3 Approach ......................................................................................................................... 5 2 Field Data Collection ........................................................................................................................ 7 2.1 Pressure sensors ............................................................................................................ 9 2.2 Radar water level sensors ............................................................................................ 10 2.3 Discharge measurements ............................................................................................ 12 2.4 Hydrographic survey ..................................................................................................... 14 2.5 Light detection and ranging (LIDAR) data collection ................................................... 14 2.6 Unmanned aerial system (UAS) imagery ..................................................................... 16 3 Modeling ........................................................................................................................................ 19 3.1 Introduction ................................................................................................................... 19 3.2 Model calibration .......................................................................................................... 21 3.2.1 Water level calibration ........................................................................................................... 21 3.2.2 Discharge calibration ............................................................................................................. 27 3.3 Model validation ........................................................................................................... 28 3.4 Modeling results ........................................................................................................... 35 3.4.1 Rates of change – objective 1 ............................................................................................... 38 3.4.2 Habitat classifications – objective 2 ..................................................................................... 43 3.4.3 Integrated ecosystem response modeling – objective 3 ..................................................... 55 3.4.4 Lake sturgeon ......................................................................................................................... 56 4 Conclusions .................................................................................................................................... 63 5 Future Work .................................................................................................................................... 65 References............................................................................................................................................. 66 Appendix A: Calibration and Validation Graphs ................................................................................... 68 Report Documentation Page-
dc.format.extent101 pages / 22.04 Mb-
dc.format.mediumPDF-
dc.language.isoen_USen_US
dc.publisherEnvironmental Laboratory (U.S.)en_US
dc.publisherCoastal and Hydraulics Laboratory (U.S.)-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesTechnical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC TR-19-24-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectSaint Marys River (Mich. and Ont.)en_US
dc.subjectRivers--Regulationen_US
dc.subjectHydraulic structuresen_US
dc.subjectHydraulic modelsen_US
dc.subjectWater levelsen_US
dc.subjectFish habitat improvementen_US
dc.titleAnalyzing the St. Marys rapids for suitable fish habitat : an Engineering with Nature® demonstration projecten_US
dc.typeReporten_US
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