Griggs Reservoir is located in Franklin County, in central Ohio, in northwest Columbus. State Route 33 parallels the lake on the east side and there is a public boat launch just south of the Fishinger Road intersection.
The Columbus Department of Parks and Recreation maintains 521 acres as a city park. The park runs along the east side of the reservoir between the water and State Route 33 from the dam north to Lane Road. Throughout the park is a bicycle and driving trail with numerous parking and picnic areas. The park also includes an amphitheater, boat launch, playground, and shelterhouses. On the west side of the reservoir there is additional park area south of Fishinger Road with picnic facilities and fishing access.
- Check for water quality advisories
Griggs Reservoir is maintained and operated by the city of Columbus Division of Watershed Management as a source for municipal water supply. The dam was constructed on the Scioto River in 1904 creating a long narrow lake that runs north to south for approximately six miles, creating 387 surface acres of fishing water. The lake is generally clear, but is influenced heavily by rain events and can become very turbid. Depths can exceed 20 feet near the dam, but most of the reservoir is between 10 and 15 feet deep.