Because the field was constructed before the advent of field lighting, no harm was seen in orienting the diamond due west. It is one of only two professional ballparks in the U.S. today that faces west (the other being Sam Lynn Ballpark in Bakersfield, California, built in 1941). Lights were not installed until 1946. In 1989 a mesh screen was placed in center field. Nevertheless, some umpires still briefly suspend games at sunset, so that the setting sun will not interfere with the batters' view of the pitch.