Name/Title
Blueprints of Posey Tube, 1924Entry/Object ID
2025.74.1Description
Acc. No. 25.74.1
Subject Category: Transportation / Infrastructure; Bridges and Tunnels; Posey Tube
Date or Period: 1924
Object: Blueprint book
Description: Blueprints with white ink, gathered into two volumes and secured with brass brads. Title volume I: ‘Chapter 1 General Contents’, contains Chapters 1-V and Appendix V-A. Volume 2 contains 'Chapter VII Design of Precast Reinforced Concrete Structure for Estuary Crossing', contains Appendix V11-I.
Horizontal scale 80 feet to an inch / Vertical scale 4 feet to an inch. Drawn by: City Engineer, Posey, Alameda, 1927.
Size: L 11” W 8 1/2”
History of Object: Blueprints of Posey Tube. Donation contact Helen Mecum, donation from Howard A. Schirmer, Structural Engineer of Alameda.
Donor: Howard A. Schirmer
Donation Date: unknown (prior to 2019)
Catalog Date: 5/30/2025
