ARMO – Retaining Wall Replacement Project
Summary
SCH Number
2025070105
Public Agency
Orange County
Document Title
ARMO – Retaining Wall Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
7/2/2025
Document Description
The proposed project consists of rehabilitation of the existing retaining wall along the southern border of the historical Arden Helena Modjeska House (ARMO House) located at 29042 Modjeska Canyon Road in Silverado. The new proposed retaining wall will consist of a prefabricated block gravity wall with veneer that incorporates salvageable stones from the existing wall. The proposed retaining wall will be placed a minimum of three feet away from the ARMO House to ensure a protection buffer and access to the south side of the house. In addition, one native tree – Fraxinus Velutina (7-inch in diameter), will be removed to facilitate the reconstruction of the retaining wall. The tree will be replaced with three native trees on site and will be monitored for establishment. Construction is anticipated to need 75 truck trips, with project construction estimated to begin in late 2025, and last for approximately 6 months.
Contact Information
Name
Virginia Gomez
Agency Name
Orange County
Job Title
Senior Planner
Contact Types
Lead/Public Agency
Phone
Location
Cities
Unincorporated area - Silverado
Counties
Orange
Regions
Unincorporated
Other Location Info
29042 Modjeska Canyon Road, Silverado, Unincorporated Area of Orange County
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15331 - Class 31 - Historical Resource Restoration/Rehabilitation
Reasons for Exemption
The exemption provides for the rehabilitation and reconstruction of historical resources in a manner consistent with the Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring, and Reconstructing Historic Buildings. The deteriorated stone retaining wall features will be rehabilitated, with a new prefabricated block/stone gravity wall with veneer that matches the old wall in design, color, texture and material, where possible. In addition, any salvageable stone material from the existing retaining wall will be incorporated in the new wall. The replacement of the missing features will be substantiated by documentary and physical evidence.
County Clerk
Orange
Attachments
Notice of Exemption
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