The U.S. Open construction process is organized by the USGA and typically takes three months to complete. Infrastructure will begin being delivered around March 7 with construction of temporary U.S. Open facilities immediately following. Construction and support personnel will increase in the weeks leading up to the championship as more contracted vendors and suppliers arrive onsite to focus on their respective operations. It is forecasted that March construction hours of operation will take place between approximately 7:00am-5:00pm, April 7:00am-6:30pm, May 7:00am-7:00pm, and the first weeks of June 6:00am-9:00pm for final preparations. Subject to weather, some days may require shorter or longer hours based on the work needing to get accomplished to meet construction timelines. The USGA is working with the Town of Brookline for a Noise Ordinance Variance to assure compliance based on specified dates of construction and championship week operations.