Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
National Historic Civil Engineering Landmark
Photographer: Barry Swackhamer
Taken: August 13, 2020
Caption: National Historic Civil Engineering Landmark
Submitted: October 25, 2020, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p545792
File Size: 3.626 Megabytes

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