Derby Dike

Derby Dike is a California Historical Landmark in San Diego County.

San Diego County · San Diego River Flood Control Channel · location approximate

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The San Diego Herald, September 24, 1853: "Improvement of San Diego River. This work was commenced by Lieutenant Derby, U.S. Corps of Topographical Engineers.... His orders were 'to excavate the former channel of the river discharging into Flase Bay and to build a levee... from a point near the Old Town to... the opposite high land... to counteract the action of subsequent freshets....'" Derby Dike does not exist anymore because of land development.

1971 register text, presented as a historical document. It uses the period's terms for Native people; the state's landmark listings still carry most of this wording, and the California Office of Historic Preservation maintains the program's current texts.

Many of these plaques have since been recast or their texts revised. The California Historical Landmarks program and its current texts are maintained by the California Office of Historic Preservation. California Office of Historic Preservation ↗

TodayHistorical map

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Example

under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

From one family's 77-marker roster

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Marker data: State of California, Department of Parks and Recreation, California Historical Landmarks (1971)

Derby Dike

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