The Commission received a grant from the United States Department of Commerce, Economic Development Administration, to remove navigation hazards from portions of the Sacramento-San Joaquin Delta using a mobile crane mounted on a barge. Many of the objects to be removed were natural, such as trees and snags in the waterways. However, in the case of man-made objects scheduled for removal, the terms of the Federal grant required a historical analysis to determine whether or not the object(s) should, in fact, be removed. Those objects or sites found to have important historic values were to be identified and left undisturbed by the hazard removal operation. “Historic value” was defined in terms of a site’s potential eligibility for the National Register of Historic Places. Recommendations regarding the historic significance and proposed removal of man-made objects were subject to review and approval by the State Office of Historic Preservation.
- Historical Evaluation of the Delta Waterways – Final Report (external contracted report)