The multilane roundabout was a developer-driven improvement project located on State Route 43 and Lacey Boulevard in Hanford, California. The improvements required an Encroachment Permit and a Design Exception while meeting approval from Caltrans in conjunction.
The project included a large three-leg multilane hybrid roundabout having single-lane entry approaches in the eastbound and southbound directions while providing two-lane entries for the northbound approach. The project required the re-alignment of W. Lacey Boulevard, construction improvements for two adjacent intersections, new storm drain system with drainage basins, sewer and water improvements, utility coordination/relocation of overhead utilities, new street lighting and traffic signal modifications. Caltrans required State Route 43 to remain open during construction necessitating a multi-phased traffic handling and traffic control plan for the duration of the project.
The project also featured two large bypass splitter islands which separate right-turn traffic from the roundabout. ADA-compliant pedestrian facilities included shared use sidewalks and bike ramps with channeled sidewalks located within the splitter islands. The roundabout also features large cobble rocks and stamped concrete in lieu of plants or landscaping which greatly reduces maintenance costs and water requirements. These large cobble rocks also discourage pedestrians from taking alternate routes outside the provided pedestrian paths. An up-lighted “Welcome to Hanford” break-away sign was incorporated and placed in the center island in conjunction with Advanced Warning Beacons, pavement markings and signage at each approach to warn drivers of the changes in the roadway advancing towards the roundabout. Additionally, right-of-way takes were obtained with this project and Peters Engineering Group provided construction support services throughout the project.
