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California Desert District
Release Date: 09/25/12
Contacts: David Briery, (951) 697-5220 or    
  Stephen Razo, (951) 697-5217    
News Release No. CDD-12-73

Pre-Construction Testing Approved for Tule Wind Energy Project

The Bureau of Land Management (BLM) has approved a Notice to Proceed (NTP) to conduct pre-construction geotechnical testing for the Tule Wind Project (NTP No. 1).  The NTP authorizes the use of public land for geotechnical testing exclusively -- all other activities related to civil construction will require additional requests for NTPs. 

Tule Wind LLC filed right-of-way (ROW) application CACA-49698 for the Tule Wind Project. The project consists of up to 62 wind turbines with a generating capacity of up to 186 megawatts (MW), an overhead and underground 34.5-kilovolt (kV) collector system leading to a collector substation, an operations and maintenance facility, and a 138-kV transmission line as the generation tie-in to the Boulevard Substation rebuild.  The Tule Wind Project is located on 12,200 acres of BLM-managed lands. The project site is located in the In-Ko-Pah Mountains near the McCain Valley in San Diego County, north of the unincorporated community of Boulevard, Calif.

BLM issued a Record of Decision approving the project on Dec. 19, 2011, and issued the ROW grant on April 10, 2012.

The geotechnical testing activities authorized by BLM are being completed to provide Tule Wind LLC with a better understanding of the geotechnical conditions on site. The information collected from the geotechnical testing will be utilized to determine the final design for the wind turbine foundations, MET tower foundations, and on-site roadway design. The geotechnical testing is both intended to be utilized by Tule Wind LLC to finalize the engineering design and meet the requirements of Mitigation Measure GEO-3 included in the Final Environmental Impact Statement (FEIS) for the Tule Wind Project. Mitigation Measure GEO-3 requires completion of design-level geotechnical investigations to evaluate the potential for liquefaction, lateral spreading, seismic slope instability, and ground-cracking hazards. 

All geotechnical testing will be completed within the proposed limits of disturbance identified in the Tule Wind Project FEIS and more specifically at the turbine and MET tower geographic coordinates included in Appendix D to the Tule Wind Project Plan of Development (December 2011).

Additional details on the proposed wind energy project can be found at the following website: Comments may be submitted to BLM Project Manager Brian Paul by email at or by mail to the El Centro Field Office at 1661 S. 4th Street, El Centro, CA 92243.


California Desert District   22835 Calle San Juan de Los Lagos, Moreno Valley, CA 92553  

Last updated: 09-25-2012