San Marcos Dam Inundation Map

North Coast Engineering completed the inundation map for the Department of Water Resources. 


Approximately 10 Miles

San Luis Obispo County, CA

Project Info

  The Department of Water Resources requires dam owners to perform a dam breach study every ten years to create an emergency response in case of failure. Our team modeled the breach of a 40-foot tall dam and the impacted area downstream from the dam. The simulation includes 407 acre-feet of water traveling over 10 miles through the San Marcos creek in just under two hours. NCE was able to map the inundated area in color pdfs for safety officials to prepare an emergency action plan (EAP) in response to a dam failure.  


Chimney Rock Ranch

Completion Year:


Project Type: 

Flood Mapping

Senior Staff / Project Managers: 

Greg Jaeger, PE

Project Engineer: 

John Luttman, PE


Services Used In This Project

Civil Engineering

  • Waterway Modeling/ Flood Studies and Mapping

Surveying and Mapping

Project Development


Civil Engineering

Surveying and Mapping

Project Development

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+1 (805) 239 – 3127