construction on Lincoln High School, as a second high school located on Cliff Avenue next to Interstate 229. For about six weeks, in the fall of 1965, 3,300 students attended classes in a split schedule. Following some delays, Lincoln High School opened on October 19, 1965, with 1,300 students. In 1986 the building was listed on the National Register of Historic Places as "Washington High School". Now the Washington Pavilion of Arts and Science, it remains listed on the National Register. In the fall of 1992, 1,439 Washington High School students attended classes in the current Washington High School. , Washington High School has served 2,091 students, with 120 teachers, 6 counselors, 18 education assistants, 44 support staff and 4 administrators. Academics Washington operates on an 8:15 a.m. to 3:10 p.m. schedule, of which broken up into seven class periods, the fourth or fifth period assigned for freshmen and sophomores as a study hall/lunch break, and an off-campus lunch hour designated for qualifying juniors and seniors, pending parental approval, an 85% average on semester tests and adequate standardized test scores. In 2009, Washington began offering "zero" and "eighth" hour classes, from a limited pool of courses. In the 2007–2008 school year, Washington, along with other district schools, achieved a mean composite of 22.6 on the ACT examination, 1.5 points higher than the national average of 21.1. With 16 Advanced Placement courses offered at Washington, 38.2% of the student body enrolled in at least one, with each participant taking an average of 2.8 classes. Of those participating, 528 students took part in the examinations held in May, with approximately 58.9% receiving "passing" credit. The school also offers accelerated courses for students to participate in, with disciplines such as mathematics and English available. The 2009 graduating class met adequate yearly progress status on the 2008 Dakota STEP examination, a statewide standardized test complying with NCLB requirements, indicating that all student demographics achieved a minimum level of proficiency, marking improvement from previous years and the only class in the district to do so. Almost 44.3% of students from the same class also scored 4.0 (above average) or higher on the district-issued writing assessment. Athletics The Warriors were founding members of the Eastern South Dakota Conference before being forced to move to the Sioux Interstate Conference (which included schools in Sioux City, Iowa) due to non traditional girls sports seasons. They have been members