Nebraskaland

April 2025 Nebraskaland

NEBRASKAland Magazine is dedicated to outstanding photography and informative writing with an engaging mix of articles and photos highlighting Nebraska’s outdoor activities, parklands, wildlife, history and people.

Issue link: http://mag.outdoornebraska.gov/i/1533746

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52 Nebraskaland • April 2025 MIXED BAG When reservoirs are new, and creekbottoms and draws that once led to the river that was dammed fi ll with water, they can be incredible fi sheries. As the reservoirs age and shorelines erode, however, the mouths of those bays can become fi lled with sediment, disconnecting them from the lake. That was the case with Methodist Cove on the north side of Harlan County Lake. Thanks to a $9.25-million aquatic ecosystem restoration project set to be completed this spring that removed 150,000 cubic yards of silt and dredged a channel between the cove and the lake, connection between the two will be more frequent. The result should provide a spark to the lake's fi sh populations, especially crappie, and provide more opportunities for anglers. At Harlan County Lake, ice heaves and wind-driven waves had no trouble moving light, eroded soils up and down the bank. That lateral movement of sediment had formed berms across the mouths of all but two of 29 coves, Patterson Harbor and Gremlin Cove, both at the east end of the reservoir near the dam, separating them from the reservoir except when it was at or near full pool. Prior to the habitat project, Methodist Cove became disconnected from the reservoir when water levels dropped less than 4 feet, and 11 times since 2000, the lake did not rise enough in the spring to spill into the bay. When it did and fi sh were able to spawn there, falling water levels when the irrigation season began often trapped and doomed their young. Now, a 200-foot-wide channel connects the cove and the lake when the lake is 9 feet from full pool. It was designed to facilitate access to and from the cove in most years with two critical time periods for crappies in mind: mid-April to mid- May, when adults are looking for spawning habitat; and early July, when young of the year are large enough to head for the reservoir. Additionally, the bay was less than 6 feet deep. After 100,000 cubic yards of sediment was removed — enough to cover a football fi eld 50 feet deep — water will be up to 17 feet deep when the lake is full, much closer to the depth found there when the lake fi rst fi lled in 1957. Even when it becomes disconnected, water will be 8 feet deep, enough for fi sh to survive the winter. More than 150 artifi cial structures A HARLAN RECONNECTION By Eric Fowler Artificial structures and cut cedar trees will serve as fish habitat in the area where sediment was excavated from Methodist Cove at Harlan County Lake. ERIC FOWLER, NEBRASKALAND Harlan County Reservoir

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