Southline Transmission Project

Draft Environmental Impact Statement

BLM New Mexico and the Western Area Power Administration (Western) have released the draft environmental impact statement (DEIS) for the Southline Transmission project, proposed to be built in southern New Mexico and Arizona.

Public Meetings

The release of the DEIS on April 11, 2014, started a 90-day public comment period that runs through July 10, 2014.  As part of the public comment period, the BLM and Western are holding a series of public meetings:

Tuesday, May 6
5:30-8:00 p.m.
Ramada Las Cruces Hotel and Conference Center
201 East University Avenue
Las Cruces, New Mexico  88005

Wednesday, May 7
5:30-8:00 p.m.
Mimbres Valley Special Events Center
2300 East Pine Street
Deming, New Mexico  88030

Thursday, May 8
5:30-8:00 p.m.
Lordsburg Special Events Center
502 West 2nd Street
Lordsburg, New Mexico  88045
Tuesday, May 20
5:30-8:00 p.m.
Benson Community Center
705 West Union Street
Benson, Arizona  85602
Wednesday, May 21
5:30-8:00 p.m.
Willcox Community Center
312 West Stewart Street
Willcox, Arizona  85643
Thursday, May 22
5:30-8:00 p.m.
El Rio Neighborhood Center
1390 West Speedway Boulevard
Tucson, Arizona  85745

The meetings will begin with an open house.  A presentation on the project will begin at 6:00 p.m., followed by a public comment period. 

The comments will be recorded by a court reporter and will be included in the project record and considered in preparing the Final EIS.  Those wishing to speak will be asked to register at the hearing.  Depending on the number of individuals wishing to comment, the time for individual comments may be limited.

Comments on the DEIS will also be accepted by mail, email, and fax.  Addresses are listed below.  In order for the comments to be considered in preparation of the Final EIS, they must be postmarked no later than July 10, 2014.

Comments can be sent to:

Bureau of Land Management Las Cruces District Office
Southline Transmission Project
Attention:  Frances Martinez
1800 Marquess St.
Las Cruces, New Mexico  88005
Fax: (575) 525-4412

About the Project

Southline Transmission, LLC, proposes constructing, operating, and maintaining a high-voltage power line in two segments totaling approximately 360 miles.  The first segment would be a new double circuit 345-kilovolt line from a substation in Afton, New Mexico (south of Las Cruces), to a substation in Apache, Arizona (south of Willcox). This 225-mile segment would provide up to 1,000 megawatts of initial rated capacity.  The second segment would be an upgrading and rebuilding of about 130 miles of existing transmission lines between the Apache substation and the Saguaro substation, northwest of Tucson.  It would provide capacity for an additional 1,000 megawatts of electricity.

The line would cross Federal lands managed by the BLM and other agencies. It also would cross state and private lands.  BLM-New Mexico is preparing the EIS and is taking the lead in considering potential Federal land use plan amendments that the project may require.  Western, a power-marketing arm of the Department of Energy, is a co-lead in preparing the EIS.

Southline Transmission, LLC, is a subsidiary of Hunt Power, L.P., which develops and invests in entrepreneurial electric and gas utility opportunities.  It is part of a larger privately held group of entities managed by the Ray L. Hunt family.  Black Forest Partners, L.P., is the project manager for Southline Transmission, LLC.

Additional information is available from Mark Mackiewicz, BLM National Project Manager, at (435)636-3616 or


Public Meeting Documents

Public Meeting and Hearing Presentation (5-8-14)

Poster Boards

Draft EIS and Draft Resource Management Plan Amendment

News Release

Volume 1

Volume 2

Volume 3

Volume 4

Public Meetings

Comment Form


Final Scoping Report, September 2012

News Release: Comment Period for the Southline Transmission Line Project extended to July 5, 2012

Southline Transmission Line Project Newsletter - April 2012

Public Scoping Meetings: May 8-17, 2012

News Release: BLM Begins Evaluation of the Proposed Southline Electrical Transmission Line in Southern New Mexico and Arizona

Map of Proposed Study Area

Notice of Intent

Comment Form

Scoping Meetings