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AUSTIN (CBSDFW.COM/AP) — Hundreds of volunteers have helped restore more than 50 Texas state parks damaged or closed following deadly Memorial Day weekend flooding.

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The Texas Parks & Wildlife Department says four parks remain closed going into Labor Day weekend. They are Cedar Hill State Park, Lake Whitney State Park, Ray Roberts Lake State Park and Lake Somerville State Park.

Clay Church, a spokesperson with the U.S. Army Corps of Engineers, said Lake Ray Roberts is still above normal, but the level isn’t so high that a water release is needed. He said, “Lakes currently are holding waters in their flood pools, but no longer are discharging waters through the spillway.”

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Texas Parks & Wildlife executive Brent Leisure said Thursday that parks must be safe for public use before the sites reopen.

Officials say the most expensive infrastructure damage happened at Bastrop State Park, 30 miles east of Austin, with the loss of the lake dam. A section of main park road was washed away. Reconstruction costs are estimated at $6 million.

Memorial Day weekend flooding in Texas claimed more than two dozen lives.

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