Transcript Presentation 12/4/2009

Team 8
Aaron Vanderhill
Jim Barron
Jeff Van Laar
Tom Marshall
Outline
Project
 Design Alternatives
 Preliminary Design
 Feasibility
 Design Norms
 Issues
 Questions

Project

Primary Goal
 Return the rapids to the Grand River
 GGR

Secondary Goal
 Create a whitewater course
 GRWW
Revitalize Downtown Area
Design Alternatives
1.
Removal of 5 beautification dams

2.
Diversion Canal

3.
Go around 4th street dam
4th Street Dam modification

4.
Replace with natural rocks
Removal of east side
Removal of 4th Street Dam
Preliminary Design

Combination of alternatives 1 and 3
 Replacement of downstream dams
 Modification of 4th Street Dam

Reasons
 Meets client’s needs
 Improves fish habitat
 Other alternatives not feasible
○ Sediment behind 4th Street Dam
○ Would look unnatural
○ Greater costs
Example of Stair-step Rapids
www. grandrapidswhitewater.com
Feasibility
Many examples of other courses
 Sufficient flow in river
 Revitalization of downtown
 Safer than existing conditions

Video
Design Norms

Cultural Appropriateness
 Suitable to all parties

Justice
 Respect rights of fishermen and property
owners

Stewardship
 Naturalize river
 Improve fish habitat
Issues
Modeling
 Cost estimates
 Acquiring data

Resources

HEC-RAS model of Grand River

Model from GRWW

FTC&H

GRWW
Questions?