Starting Oct. 30, Summit Lake State Park will begin lowering the lake's water level by 5 feet to allow contractors to repair a gate valve at the dam.

The lowering process will take about a week. No more than 1 foot of water per day can be released into the Big Blue River to protect downstream ecosystems.

The lake will remain open to boating and angling during the project and as the lake gradually refills over the next few months. During this period, however, lake users should watch out for stumps and other debris that will be closer to the surface. Additionally, several fingers of the lake will be inaccessible.

The north boat ramp is expected to remain open. The south boat ramp and campground boat ramp may be closed.

The lake's return to normal water level will depend on the amount of precipitation the area receives this winter and spring.

The exposure of previously submerged areas could attract a more diverse array of waterfowl this winter. And vegetation growth on exposed areas should create new fish habitat for bluegills, crappies and perch. Populations of those species could grow as a result of the lowering.

Summit Lake protects several miles of the Big Blue River from flooding, including areas through New Castle.

The dam and gate valve were built in the 1970s. Over years, the valve has worn and needs repaired. The valve controls lake water levels, protecting the dam during heavy rains.

Lowering the lake will allow divers and contractors to work safely. Repairs are expected to be completed by mid-November.

For more information, call (765) 766-5873.

Summit Lake State Park is located at 5993 N. Messick Road, New Castle, IN 47362.

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Media contact: Nicole LeCrone, property manager, Summit Lake State Park, (765) 766-5873, nlecrone@dnr.IN.gov.