Watson, Sara Ruth; John R. Wolfs (1981). "Chapter 2: The Four Great Viaducts". Bridges of Metropolitan Cleveland. pp. 36–39. Archived from the original on 2010-06-13. Retrieved 2009-07-18. Transcription at The Cleveland Memory Project website.
Watson, Sara Ruth; John R. Wolfs (1981). "Chapter 2: The Four Great Viaducts". Bridges of Metropolitan Cleveland. pp. 36–39. Archived from the original on 2010-06-13. Retrieved 2009-07-18. Transcription at The Cleveland Memory Project website.