Traffic Pattern
For safety reasons, a very specific traffic pattern was established on Griggs. Note, rowers must stay within 100 feet of the shoreline. The river may be crossed only at three points: north of Fishinger Bridge, at the Wall, and south of the Hayden Run Bridge.
Distances and Waypoints on Griggs Reservoir
Here are the distances between the various landmarks on Griggs. All measurements were taken proceeding north from GCRA's previous dock (by the dam), 50 feet off shore with a GPS receiver accurate within 5 meters or about 15 feet.