Bureau of Reclamation Seismic Hazard Study
Investigating active and potentially active faults in central Arizona for dams along the Salt and Verde rivers. The investigation involves digging soil pits by hand at 20 locations within the Tonto National Forest.
Project Summary
Current Status:
Completed
Location Summary:
near Horseshoe Dam near the Horseshoe Dam road, approximately16 air miles Northeast from Cave Creek. The legal location of the project is Township 08N., Range 06E., Section 21, 28, & 33 and Township 6N., 5E., 23 & 34
Project Milestones:
| Milestone | Date |
|---|---|
| Scoping Start | 05/30/2024 |
| Decision | 03/2025 (Estimated) |
| Implementation | 04/2025 (Estimated) |
Expected Analysis Type:
Decision Memo
Categorical Exclusion:
32.2 (8), 36 Cfr 220.6(E)(8)
Special Authority:
Not Applicable / Other
Lead Management Unit:
Cave Creek Ranger District
Notice and Comment Regulation:
Not Subject to Regulations
Project Purpose:
Special Use Management
Project Activity:
Special Use Authorizations
Project Decision Information
Bureau of Reclamation Seismic Hazard Study
Decision Signed Date: 03/31/2025
Forests:
Tonto National Forest
Districts:
Cave Creek Ranger District
States:
Arizona
Counties:
Gila; Maricopa
Legal Land Description:
Township 08N., Range 06E., Section 21, 28, & 33 and Township 6N., 5E., 23 & 34
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Mark McEntarffer
40202 N. Cave Creek Road
Scottsdale, AZ 85262
602-225-5239
mark.mcentarffer@usda.gov
Last Updated: 4/1/2025