The report, "Sennacherib's Aqueduct at Jerman" by Thorkild Jacobsen and Seton Lloyd includes this plan and elevation. The width of the structure, from buttress to butress was 26 meters. The bed of the aquedct was cement on top of stone. https://oi.uchicago.edu/sites/oi.uchicago.edu/files/uploads/shared/docs/oip24.pdf
April 04, 2019