As the project to install a new Eversource station near downtown Greenwich nears completion, Prospect Street will be closed from 10 a.m. to 2 p.m. Oct. 19 between Railroad Avenue and Route 1 to accommodate work. The first part of the project was successfully completed, but Tracey Alston, Eversource’s community relations specialist, told the board that more work must be done on additional manholes and a crane will be needed. “We are looking to have everything live with regard to the new substation and transmission line by Oct. 28,” she said. The manholes have “critical infrastructure” for finalizing the project. The construction area is difficult for drivers to navigate, Selectwoman Jill Oberlander said, comparing it to a maze.