Based on the reading it is hard to give a single leadership style or even a combination of leadership styles because there are so many different levels of productions and management for this project. Each level of management will have their own required type of leadership and while some styles may overlap, there will be differences for each level. For a project this large you are more than likely to run in to just about every type of leadership style at some point.
When we start at the top you see that there is a Collaborative Leadership between the City, Greiner Engineering, and Morrison-Knudsen Engineering. Collaborative leaderships work well but even with a collaborative leadership there needs to be an organizer that directs the flow of discussions and determines outcomes in the event of a stalemate. This is not discussed in the passage and it is not determined who has the final say. Typically this would be the city since they are the owners but in many cases it also depends on the how contracts are written. While in the long run the city can make the final decision depending on the way the contract is written the city may have to pay to make those decisions. Without more information on the contract with the city and the engineering firms we cannot confirm if it is a true collaborative leadership. But there are other aspects that are brought up that bring up more concerns with the management systems used. While it appears to would be a collaborative leadership it does not seem as if everyone is on board with the same ideas.