That is not a good comparison. The SF Bay Bridge replacement project was conducted as a competition. The design that won was so much more complicated than all the other entries that at first it was not clear that it could be built and in fact the finished product is flawed with cracks and other failures. There is nothing particularly complex about the basic problem and the simple viaduct design that was advocated by the Governor at the time was expected to involve an order of magnitude less cost and time of construction but was rejected for being too simple and not beautiful enough. This management structure and these considerations have not been used for any space missions.