EAGLE — Locals and visitors who typically plan an annual camping trip to Sylvan Lake will have to take a hiatus this summer. The roughly 70-year-old dam at the popular recreation spot will be replaced this summer. The lake has been significantly drained, and heavy equipment is already mobilized. The cabins and campsites at the lake, as well as the trail around the lake itself, will be closed all summer. “The dam at the lake dates back to the 1940s, and it is all earthen.