In connection with the construction and development of the southwest pipeline project, there is granted over all the lands belonging to the state, including lands owned or acquired for highway right-of-way purposes, a right of way for pipelines, connections, valves, and all other appurtenant facilities constructed as part of the southwest pipeline project, provided, however, the director of the department of transportation and the director of the department of water resources must approve the plans of the authority regarding the use of all right of way of roads before the grant is effective.