team 8: grand river rapids
DESCRIPTION
Team 8: Grand River Rapids. Team 8. Aaron Vanderhill. Jim Barron. Jeff Van Laar. Tom Marshall. Outline. Context & Customer Project Overview Design Alternatives Final Design Design Norms Site Planning Dam Modification – HEC-RAS modeling Future Work Questions. Context & Customer. - PowerPoint PPT PresentationTRANSCRIPT
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Team 8: Grand River Rapids
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Team 8
Aaron Vanderhill Jim Barron Jeff Van Laar Tom Marshall
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Context & Customer Project Overview Design Alternatives Final Design Design Norms Site Planning Dam Modification – HEC-RAS modeling Future Work Questions
Outline
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Kayakers and Canoeists have shown
interest
GRWW
Recreational course not only for
experienced kayakers
Revitalization of Downtown
Context & Customer
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Return the Grand River to a more natural state
Eliminate dangerous hydraulic at 4th street dam
Design entry and exit locations for kayakers
Project Overview
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1. Removal of 5 beautification dams◦ Replace with natural rocks
2. Diversion Channel◦ Go around 4th street dam
3. 4th Street Dam modification
4. Removal of 4th Street Dam
Design Alternatives for River
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Hybrid of alternatives 1 and 3◦ Partial replacement of downstream dams◦ Modification of 4th Street Dam
with stair step Increase entry and exit points Reasons
◦ Meets client’s needs◦ Improves fish habitat◦ Other alternatives not feasible
Sediment behind 4th Street Dam
Would look unnatural Greater costs
Final Design
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Caring◦ Eliminate dangers associated with dams, making
the river safer
Justice◦ Respect rights of fishermen and property owners
Stewardship◦ Naturalize river◦ Improve fish habitat
Design Norms
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Entry & Exit Points
Increase Usability
Site Design
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Special Study•FTC&H•Green Grand Rapids
•18 Sites•Pre-owned by City of Grand Rapids
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Four Entry and Exit Points
Canal Street Park
Fulton Street
Fish Ladder Park
Ford Museum
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Fish Ladder Park
Fish Ladder Park
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Canal Street Park
Canal Street Park
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Ford Museum, Ah-Nab-Awen Park
Ford Museum
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Fulton Street Site
Fulton Street
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Signs◦ Guide, Regulate, and Warn
Lighting Guard Rails
Safety
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Floatable Dock
•Kayak Dock•$1,299 each for Economy Design•Hand ropes on dock
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Project Location
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Flow Rate◦ River used between April and November◦ Low flow = 1,700 cfs◦ High flow = 50,000 cfs (100 year storm)◦ Design flow of 3,200 cfs
Still tested with 100 year storm
Modeling Decisions
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Modeling Accuracy
◦ Rocks & boulders as series of weirs
◦ California Department of Transportation
Modeling Decisions
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4th Street Dam Safety Hazard
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Design Solution – Stairstep
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Downstream Modifications
•Dam modification creates rapids
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Finalize HEC-RAS
Final Report
Prepare for Sr. Design Night◦ Benchtop Model demonstration
Cost Estimation
AutoCAD Drawings
Future Work
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Demonstration
Benchtop Model
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Questions