From The Denver Post (Joe Rubino):
After more than a decade of discussion and planning, the Chatfield Storage Reallocation Project is set to begin later this year. The more than two-year construction effort will prepare the reservoir to accommodate an additional 20,600 acre feet of water to meet a variety of municipal, agricultural and industrial needs. Currently, the reservoir holds about 27,000 acre feet of water. Eventually it will hold up to another 20,600 acre feet of water and the the water level could rise as much as 12 vertical feet, officials said.
Beginning in winter and continuing through spring, the swim beach and north boat ramp will be reconstructed to accommodate the future shoreline. By the end of 2019, many other features of the park, including the marina, day use areas and South Platte bridge will be visited by construction crews and earth movers.
The park will remain open throughout construction. Higher water levels will change features along the reservoir’s shore…
The project will cost an estimated $160 million, said Tim Feehan, general manager of the Chatfield Reservoir Mitigation Co., whose eight partners — including Castle Rock, Centennial Water and Sanitation District and the Castle Pines Metropolitan District — will pay that tab in proportion to the amount of water storage each will be granted. Of that, $140 million has already been set aside in escrow.
Groundbreaking awaits final design approval from the Army Corps of Engineers, which built, owns and leases the reservoir to Colorado Parks and Wildlife for recreational use, Roush said. Preliminary designs and a tentative construction schedule are available online at Chatfieldreallocation.org, a project website created by Chatfield Reservoir Mitigation Co.
The swim beach is scheduled to close for reconstruction in late fall and reopen for use by Memorial Day weekend 2018. The beach and park perimeter road will be moved to the west, away from the present shoreline, to accommodate greater water fluctuations, effectively creating another 200 feet of beach area at low water. The parking lot will be expanded and the shower, restrooms and other features will be rebuilt. The north boat ramp also is scheduled to reopen to use by next Memorial Day weekend.
“A lot of the work is going to be done over the wintertime when the visitation is down and when the swim beach is closed and when the boat ramps are closed,” Roush said. “It’s about minimizing the time when the users would not be able to use those areas.”