The article states that they are using steel girders. From the scale of the people in the rendering it looks like the girders are just about the correct span to depth ratio. They could also be doing a thru girder on either side and have the deck supported by floor beams. Like a railroad bridge...
Concrete is awful in bending. So in order for those towers not to snap in half there should be stays on the backside of the towers to turn the bending load into axial load.
Philip E. Garrett, P.E.
Structural Engineer
I will never understand why owners are so in love with fake cable stays. It's the bridge equivalent of putting a fake ram scoop on a car hood.
Philip E. Garrett, P.E.
Structural Engineer
Steve73MGB,
As RFreund stated above, but did not pursue, delta from the AASHTO equation and beta from the EM equation are equal to one another.
An error is being made during the calculation of the value of delta. The correct value, given your inputs and AASHTO section 3.11.6.2, is...