Team 8: Grand River Rapids

Team 8

Aaron Vanderhill Jim Barron Jeff Van Laar Tom Marshall

Context & Customer Project Overview Design Alternatives Final Design Design Norms Site Planning Dam Modification – HEC-RAS modeling Future Work Questions

Outline

Kayakers and Canoeists have shown

interest

GRWW

Recreational course not only for

experienced kayakers

Revitalization of Downtown

Context & Customer

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

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

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

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

Entry & Exit Points

Increase Usability

Site Design

Special Study•FTC&H•Green Grand Rapids

•18 Sites•Pre-owned by City of Grand Rapids

Four Entry and Exit Points

Canal Street Park

Fulton Street

Fish Ladder Park

Ford Museum

Fish Ladder Park

Fish Ladder Park

Canal Street Park

Canal Street Park

Ford Museum, Ah-Nab-Awen Park

Ford Museum

Fulton Street Site

Fulton Street

Signs◦ Guide, Regulate, and Warn

Lighting Guard Rails

Safety

Floatable Dock

•Kayak Dock•$1,299 each for Economy Design•Hand ropes on dock

Project Location

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

Modeling Accuracy

◦ Rocks & boulders as series of weirs

◦ California Department of Transportation

Modeling Decisions

4th Street Dam Safety Hazard

Design Solution – Stairstep

Downstream Modifications

•Dam modification creates rapids

Finalize HEC-RAS

Final Report

Prepare for Sr. Design Night◦ Benchtop Model demonstration

Cost Estimation

AutoCAD Drawings

Future Work

Demonstration

Benchtop Model

Questions