Home
About ASCE
President's Message
Officers & Directors
Section Awards
Life Members
Bylaws
Sponsors
Student Chapters
Contact ASCE
News & Events
Blog
Calendar of Events
Archived Newsletters
100th Anniversary
Gala Celebration
Centennial Publication
Centerpiece Competition
Sponsorship
Trivia
Photo Gallery
2008 ASCE National Conference
Discussion forum
Job postings
D'App Memorial
Cartwright Memorial
YMF
YMF Events
Meeting Minutes
YMF Leadership
YMF Photo Gallery
Younger Member Awards
YMF Membership
Institutes
Architectural Engineering Institute
AEI Events
Construction Institute
CI Events
Environmental and Water Resources Institute
EWRI Events
Geotechnical Institute
Geo Institute Events
Structural Engineering Institute
SEI Events
Utility Engineering and Surveying Institute
UESI-NUCA PA Symposium 2021
UESI-NUCA PA About Us
Co-Sponsoring Organizations
Transportation and Development Institute
TDI Events
Committees
Sustainability at the Section
Mission
Sustainability Committee
Resources and Links
Events
Continuing Education
PE/EIT Review
Board Certifications
Outreach
History & Heritage
Diversity & Inclusion
Communications Committee
Officer Nominations
Student Awards Foundation
SAF Donations
Government Relations
Report Card for America's Infrastructure
Join/Membership
Create Local Account
Join Now
Online Application
Home
Geotechnical Considerations in the Rebuild of Taum Sauk Upper Reservoir Dam
Log in
Event Details
Back
Geotechnical Considerations in the Rebuild of Taum Sauk Upper Reservoir Dam
When
06 Apr 2011
6:00 PM
Location
Gaetano's Restaurant, 1617 Banksville Road, Pittsburgh PA 15216
ASCE GeoInstitute Pittsburgh Chapter Presents
Geotechnical Considerations in the Rebuild of Taum Sauk Upper Reservoir Dam
Mr. John P. Osterle, P.E., M.ASCE
Wednesday, April 6, 2011
Gaetano's Restaurant
1617 Banksville Road
Pittsburgh, PA 15216
The rockfill rim dike forming the Upper Reservoir at the Taum Sauk Pumped Storage Project near Lesterville, Missouri failed catastrophically on December 14, 2005. The dike was founded on residual soil, weathered rock, and competent rock. After a series of comprehensive forensic evaluations performed by Paul C. Rizzo Associates, Inc. (RIZZO), Federal Energy Regulatory Commission (FERC) staff, and the FERC’s Independent Panel of Consultants, a new Upper Reservoir Dam was designed and completely rebuilt as a Roller Compacted Concrete dam. The alignment of the new dam essentially follows the alignment of the original rockfill rim dike. Mr. Osterle’s presentation will summarize the results of the forensic evaluation performed by RIZZO and presents the geotechnical considerations associated with the design and construction of the new dam.
Historical documents indicated that low strength clay seams are present in the foundation rock below the dam. Access conditions prevented drilling on the upstream or downstream faces of the existing rockfill dike so subsurface information over the entire footprint of the new dam was not available during the design phase. Foundation information was obtained through a subsurface investigation program that was conducted as the existing rockfill dike was removed and the foundation was exposed. The subsurface investigation program included drilling, coring, and the use of a down-hole video camera to help identify the elevation and orientation of the low strength clay seams. RIZZO performed numerous stability analyses to optimize the dam cross section and the foundation preparation requirements.
Mr. Osterle is the Vice President for Dams and Water Resources Projects at RIZZO. He has over 25 years experience on a variety of civil, geotechnical, and structural engineering projects associated with the analysis, design, permitting, and construction of dams, power plants, transportation, and other industrial facilities. Mr. Osterle served as Project Manager for the Taum Sauk Upper Reservoir Dam Project.
Registration is $25 for Pittsburgh Section members, $35 for non-members, and free for student members. Please contact Stephanie Chechak at
schechak@GFNET.com
or Kevin Brissette at
kevin@hrea.us
to RSVP by April 1, 2011.
Please see the
flyer
for additional details.
Visit our sponsors
© ASCE Pittsburgh Section. All Rights Reserved.
Website by OKWhoa.com
Tweet
Powered by
Wild Apricot
Membership Software