1. Great Western Corridor Feasibility Study
Yavapai County Board of Supervisors
April 5, 2010

2. Project History
Central Yavapai Metropolitan Planning Organization (CYMPO)
Based on previous studies dating back to 1995 and the 2006 CYMPO study, a need for a new high capacity access controlled roadway was identified to meet year 2030 traffic demands.
Arizona Department of Transportation (ADOT)
Transportation Investment Strategy identified the need for Great Western/Glassford Hill Corridor to meet future traffic demands.
Yavapai County
Taking the lead to further study the Great Western Corridor for a future controlled access roadway.

3. Project Schedule Oct 2008 – Study initiated
Feb 2009 – Agency Scoping Meeting and Public Open House
July 2009 – Public Information Open House to present alternatives
Sept 2009 – Preferred Corridor Alignment selected
March 2010 – Feasibility Study, 15% Plans, and Environmental Overview complete

4. Regional Map
Great Western Study Corridor

5. Project Location
Granite Dells Pkwy
Willow Creek
Glassford Hill Rd

6. Project Overview
Need for a regional system as identified by CYMPO, Yavapai County, and ADOT
Continual coordination with agencies, community, and stakeholders
Define the future controlled access roadway needed to efficiently move regional traffic
Evaluate the environmental impacts of the preferred roadway corridor
Prepare Feasibility Study and 15% design plans to identify future right-of-way requirements
No construction funding

7. Stakeholders Yavapai County Public Works ADOT Prescott District
ADOT Roadway
ADOT PreDesign
ADOT Environmental
FHWA
City of Prescott
Town of Prescott Valley
Town of Chino Valley
AZ Game & Fish Department
AZ Fish & Wildlife
Arizona State Land Department
Granite Dells Estates (Fann)
Granite Dells Ranch (Cavan)
Deep Well Ranch (James)
Cortez Enterprises

8. 2030 Projected Traffic Volumes
Future Traffic
80,000
2030 Projected Traffic Volumes
57,000
64,000
106,000
91,000

9. Recommended Typical Section

10. Alternative Alignments
Outer Loop Rd
Road 5 South

11. Evaluation Categories
Alternative Evaluation Matrix
Evaluation Categories
- Economic Development - Engineering Considerations
- Construction & Maintenance Costs
- Transportation Systems
- Environmental Considerations

12. Preferred Alternative
Alignment Features
- 2nd shortest alignment - Minimal utility conflicts - Least potential fragmentation of pronghorn antelope habitat - Furthest alignment from existing residential

13. Preferred Corridor Alignment
Future
Chino Valley
Extension
Road 5 South
Future
Outer Loop
Extension
& SR 89
Interchange
Great Western Extension
Granite Dells Pkwy
Glassford Hill Rd
Future SR 89A System Interchange

14. Outer Loop Rd Extension &
Recommended Phasing
Phase 1
- Great Western local diamond
interchange on SR 89A
- Limited access road
- 1st interchange (by developers)
Future
Chino Valley
Extension & System
Interchange
Road 5 South
Future
Outer Loop Rd Extension &
SR 89
Interchange
Phase 2
- 1st segment of Great Western
Extension (4 lanes)
- 2nd interchange (by developers)
- Great Western on/off ramps
Phase 3
- Remaining segment of Great
Western Extension
- Granite Creek Bridge
- At-grade intersection at SR 89
Great Western
Phase 4
- 3rd interchange (by developers)
Phase 5
- Future SR 89A Interchange
(configuration TBD)
Granite Dells
Glassford Hill

15. Final Study Products Existing Drainage Report
Technical Memo re: Granite Creek Crossing Analysis
Traffic Report
Feasibility Study
Environmental Overview
15% Design Plans

16. Questions and Comments
Thank you!
For more information please visit the Yavapai County Web site: