Rosemont 138-kV Transmission Line Project
TEP is in the preliminary stages of planning for the construction and operation of new electrical transmission facilities to serve the proposed Rosemont Copper mine in the Santa Rita Mountains southeast of Tucson.
If Rosemont secures approval for its proposed operations, a 138 kilovolt (kV) line would initially be built from an existing 46kV transmission line to the proposed Rosemont Substation to provide power for construction of the Rosemont operations facilities. Because that line is not adequate to provide power for Rosemont's long-term operations, a 138kV transmission line would be built, linking the Rosemont Substation to a proposed switchyard/substation tied to TEP's 138kV transmission system. Depending upon the final route selected, the route for the 138kV line could incorporate the transmission line and electrical facilities built to provide power for the construction of the Rosemont operations facilities.
Follow the links below to learn more about the project.
Latest Information- Project Newsletter #3 (March 2010)
- Alternative Route Options (March 2010)
- 46kV Family - Option #1 Helvetia Route via links 105, 155, Helvetia construction power option
- 46KV Family – Option #2 Helvetia Route via links 130, 135, Helvetia construction power option
- 46KV Family – Option #4 Greaterville Route, Greaterville construction power option
- 46KV Family – Option #6 Helvetia Route via links 105, 155, Greaterville construction power option
- North Route Family – Option #3 Greaterville construction power option
- North Route Family – Option #8 Helvetia construction power via links 130, 135 option
- North Route Family – Option #10 Helvetia construction power via links 105, 155 option
- Santa Rita Route Family – Option #1 via links 105, 155, Greaterville construction power option
- Santa Rita Route Family – Option #3 via links 130, 135, Greaterville construction power option
- Santa Rita Route Family – Option #7 via links 105, 155, Helvetia construction power option
- Santa Rita Route Family – Option #9 via links 130, 135, Helvetia construction power option
- Project Newsletter #2 (August 2009)
- Map of Potential Transmission Line Route Segments (August 2009)
- Project Newsletter #1 (March 2009)
- Project Area Map Showing Land Jurisdiction and Ownership (March 2009)
- Project Fact Sheet (November 2008)
The documents and maps shown in these exhibits may be updated or changed as the planning process proceeds, so these exhibits may not reflect current information regarding this project.
April 14 & 15, 2010 Open House Meetings (Corona de Tucson, Sahuarita)
- Full set of displays (544 KB)
- Project Overview
- Purpose and Need
- Project Description
- Proposed Structure Type
- Proposed Switchyard_Substation
- Ownership and Jurisdiction Map
- Planning Process
- Planning Process Chart
- CEC Application Process
- Key Terms Defined
- Example Corridor and ROW Diagram
- Environmental Ananysis Summary
- Existing Land Use Map
- Future Land Use Map
- Parks, Recreation, and Open Space Map
- Biological Resources Map
- Visual Resources Map
- Scenic Quality Map
- Santa Rita Experimental Range
- Simulations Map
- Photo Simulation 1 - Santa Rita Rd
- Photo Simulation 2 - Helvetia Rd
- Photo Simulation 3 - Box Canyon Road
- Photo Simulation 4 - Quail Creek Community
- Photo Simulation 5 - Sahuarita Highlands
- Photo Simulation 6 - Kolb Rd
- Alternative Route Families
- Alternatives Comparison Table
- Alternative Routes (11) Map
- Alternative Routes Recommended to be Carried Forward
- Santa Rita Road Options 1 and 3 Map
- Adjacent 46kV Route Options 1, 2, and 4 Map
- Electric and Magnetic Fields
- Agency and Public Participation Activities
- Public Participation Opportunities
- Comments
- Decision Elements
- Next Steps
August 27, 2009 Open House Meeting (Sahuarita)
- Full set of displays (271KB)
- Title Board
- Project Overview
- Purpose & Need
- Project Description
- Proposed Structure Types
- Proposed Switchyard
- Technical Engineering Studies
- Environmental Studies
- Santa Rita Experimental Range
- Resource Sensitivity Overview
- Resource Sensitivity Overview (continued)
- Opportunities & Constraints
- Siting Criteria
- Key Terms Defined
- Preliminary Link Alternative Identification
- Link Alternative Screening & Route Identification
- TEP Decision Elements
- Public Participation Opportunities
- Next Steps
Maps
- Parks & Recreation Map
- Opportunities & Contraints Map
- Juris & Ownership with Preliminary 500 Ft. Corridor
- Juris & Ownership with Preliminary Links
- Juris & Ownership with March & July Study Area Boundaries
- Future Linear Corridors Map
- Biological Resources Map
- Visual Resources Map
- Future Land Use Map
- Existing Land Use Map
- Aerial Imagery Map
- Full set of displays (6.5MB)
- Project Overview
- Jurisdiction and Ownership
- Purpose and Need
- Project Description
- Proposed Structure Types
- Vail Substation and South Substation
- Planning Process and Responsibilities
- Transmission Line Siting Process
- Environmental Studies Overview
- Aerial Imagery
- Existing Land Use
- Future Land Use
- Parks, Open Space and Recreation Areas
- Future Linear Corridors
- Visual Resources
- Biological Resources
- Opportunities and Constraints Analysis
- Draft Transmission Line Siting Criteria
- Opportunities and Constraints Composite Map
- Initial Agency/Organization Contacts
- Public Participation Opportunities
- Next Steps
Contact Information
To provide comments or request additional information on this project, call the project information line toll-free at (866) 632-5944.
