Location
New York, New York
Date
15 Apr 2004, 1:00pm - 2:45pm
Abstract
Drake Lake Dam was constructed during the summer of 2000 as part of the development of the Jim Edgar/Panther Creek State Fish and Wildlife Area in Cass County, Illinois. The earthen dam on a natural soil foundation has a length of 450 feet and a height of 45 feet with 3H:1V upstream and downstream slopes. The dam has a principal spillway structure consisting of a cast-in-place concrete drop inlet tower, a 36-inch reinforced concrete pipe (RCP) outlet pipe, and an impact-basin-type energy dissipater/outlet structure. Construction of the earthen embankment began in July 2000 and ended in September 2000. During the latter stages of construction, observed and measurable distress of the dam was detected in the inlet tower and RCP outlet pipe. The movement measured in the principal spillway intake tower and the 36-inch RCP was the result of lateral spreading and vertical cracks in the embankment dam, both in the downstream and upstream direction, due to rapid embankment filling over the soft, silty clay foundation soils. Redesign of the dam structure was required to account for these unexpected site conditions. Results of monitoring the dam during and after construction are presented.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Bushell, Ted D.; Butler, William; Walton, William H.; and Mathur, Ravi, "Drake Lake Dam — A Performance Case History" (2004). International Conference on Case Histories in Geotechnical Engineering. 35.
https://scholarsmine.mst.edu/icchge/5icchge/session02/35
Drake Lake Dam — A Performance Case History
New York, New York
Drake Lake Dam was constructed during the summer of 2000 as part of the development of the Jim Edgar/Panther Creek State Fish and Wildlife Area in Cass County, Illinois. The earthen dam on a natural soil foundation has a length of 450 feet and a height of 45 feet with 3H:1V upstream and downstream slopes. The dam has a principal spillway structure consisting of a cast-in-place concrete drop inlet tower, a 36-inch reinforced concrete pipe (RCP) outlet pipe, and an impact-basin-type energy dissipater/outlet structure. Construction of the earthen embankment began in July 2000 and ended in September 2000. During the latter stages of construction, observed and measurable distress of the dam was detected in the inlet tower and RCP outlet pipe. The movement measured in the principal spillway intake tower and the 36-inch RCP was the result of lateral spreading and vertical cracks in the embankment dam, both in the downstream and upstream direction, due to rapid embankment filling over the soft, silty clay foundation soils. Redesign of the dam structure was required to account for these unexpected site conditions. Results of monitoring the dam during and after construction are presented.
