Lights will stay on well into the night at Jefferson Playfield (4165 16th Ave. S.) on Thursday evening, July 4. Seattle Parks and Recreation plans to activate the field lighting on the artificial turf ballfields throughout the city at 8:45 p.m. to discourage the use of fireworks, which can damage or destroy turf. The destruction of park turf is no small matter; it costs approximately $1.2 million to replace the average full-size artificial turf field.

The lights at Jefferson will be turned off at 11 p.m.