Image: Haer PBG erection force Diagram part

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Description: Erection Sequence and Force Diagram, Three Sisters Bridges, from HAER. Reduced from original TIF file found here [1] and then edited to remove non erection sequence/force diagram material, rearrange some text and convert to .png which I believe, does not change the public domain status of the image (but in case my changes to it require license I hereby release back to PD, see below) Original Image Drawing 2 of 8, Reuse or reproduction requests credit to original draftsmen, to wit: "Delineated by Julie A. Maleeva, James P. Hanley, & Susan H. Gordon, 1998, Thomas M. Behrens, 1999"
Title: Haer PBG erection force Diagram part
Credit: Transferred from en.wikipedia to Commons by Jay8g using CommonsHelper.
Author: Delineated by Julie A. Maleeva, James P. Hanley, & Susan H. Gordon, 1998, Thomas M. Behrens, 1999
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

Image usage

The following page links to this image:

Three Sisters (Pittsburgh)

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