This seminar will focus on a variety of dam related topics including the dam safety regulations for both Pennsylvania and New Jersey; dam types typically encountered in this region including earth, concrete gravity, and timber crib; typical dam terminology; commonly identified deficiency; methods of investigation such as borings, underwater inspections, and geophysics; brief discussion on pertinent engineering evaluations including hydrology, hydraulic and stability analyses; rehabilitation alternatives presented through case studies; and risk assessments and security measures applicable to dam sites.
Case studies of actual dam rehabilitation projects will be presented to cover the most common deficiencies found in this region including:
* Embankment dam overtopping protection applications such as RCC, articulated concrete blocks, riprap, gabions
* Embankment dam stabilization and seepage control
* Gravity dam stabilization using post tensioned rock anchors and mass concrete/RCC buttress
* Alternative methods of meeting spillway capacity requirements including crest parapets, armoring (overtopping protection), crest gates, side channels, labyrinths, crest lowering, and incremental inundation analysis
Instructor: Mr. Eric J. Ditchey, PE is a project manager with McCormick Taylor, Inc. He has over 20 years of experience in inspections, analyses, designs and construction phase services for dam projects. Mr. Ditchey has extensive experience in the design and construction of both new damns and upgrading and/or expansion projects for existing dams. He received undergraduate and graduate degrees from Drexel Univeristy in Philadelphia, PA. Mr. Ditchey is a voting member of the ACI Committee on Mass Concrete ACI 207, and currently serves as chairman of the Association of State Dam Safety Officials (ASDSO), Council for Safe Dams, as a member of the ASDSO Affiliate Member Advisory Committee and Peer Review Committee.
Approved for 12
New York
State
Professional Engineering credits!