GSM 2017 Nebraska Day 5 Part 2
Sep 12, 2017Public
Photo: Once again, an orientation within Nebraska: The area we explored is within the red rectangle, through which both forks of the Platte River flow.
Photo: The black line shows the approximate route for Day 5. This album includes Kingsley Dam and Cedar Point Biological Station. Earlier stops are in album Day 5, Part 1.
Photo: Lake McConaughy is a reservoir on the North Platte River. It is located 9 miles north of Ogallala, Nebraska. The reservoir was named for Charles W. McConaughy, a grain merchant and mayor of Holdrege, Nebraska, one of the leading promoters of the project. Although he did not live to see the completion of the project, his leadership and perseverance eventually culminated in a public power and irrigation project that helped Nebraska become one of the nation's leading agricultural states.
Photo: Lake Mcconaughy, formed by Kingsley Dam, is a man-made body of water that is 22 miles long, 4 miles wide at its largest point, and 142 feet deep near the dam (at full capacity). It was constructed between 1936 and 1941 and is fed by the North Platte River. When full, the reservoir has a capacity of 1,740,000 acre feet, covers 35,700 acres and has 76 miles of shoreline, making it the largest reservoir in Nebraska.
Photo: Lake McConaughy was constructed to store water for irrigation for The Tri-County, later renamed Central Nebraska Public Power and Irrigation District (CNPPID) hydro-irrigation project. A hydro-electric plant was later added and went online in 1984.
Photo: Diagram of an aquifer with a center-point irrigation well.
Photo: On the discharge (east) side of Kingsley Dam is Lake Ogallala, commonly called the 'Little Lake'. Water flows out of Lake McConaughy through the Morning Glory tower, and out the other side of the dam through the hydroelectric plant into Lake Ogallala where the water continues flowing down the North Platte River. This smaller lake has rocky shores, but is well known for great camping and fishing.
Photo: On the east side of the dam is Lake Ogallala (seen here) and on the south side is the Kingsley Hydroelectric Plant, which we will visit shortly.
Photo: The discharge into Lake Ogallala is sprayed upward to add oxygen. This is necessary because the discharge water comes from the deep part of Lake McConaughy which has little disolved oxygen.
Photo: Nate Nielsen, Kingsley Dam Foreman, was our guide at the hydro plant.
Photo: As can be seen here, Kingsley Dam is an earthen dam. Lake Ogallala was formed during its construstion to provide fill.
Photo: Nebraska Highway 61 passes over the dam.
Photo: Photo of the dam under construction in the late 1930s.
Photo: Water flows out of Lake McConaughy through the Morning Glory tower, where we headed next.
Photo: Riprap, also known as shot rock, rock armour, or rubble, is rock or other material used to armor shorelines, streambeds, bridge abutments, pilings and other shoreline structures against scour and water or ice erosion. It is made from a variety of rock types, commonly granite or limestone. It can be used on any waterway or water containment where there is potential for water erosion.
Photo: The color bands indicate earlier lake levels.
Photo: Some concrete "jacks" in this part of the riprap.